Your commitment to momentum in the turns is amazing. You've got that car sorted and you can trust it. Maybe the gt3 driver needs to slow down a little and focus on getting the cornering speed up, before they wail on it.
Thanks Jack for this comparison. I've been doing this same thing comparing your laps to mine in my 991 GT3. I'm a novice, having tracked Big Willow only twice, so your videos are great learning tools. I'm slowly gaining trust that I have enough grip to maintain my speed thru turns 2 and 8!
Jack...I find your videos very instructive and interesting. I've been racing Vintage cars for 20+ years and really enjoy Willow. Watching your videos its obvious to me I'm losing some time in the big sweeper (turns 2 & 3)...and I haven't been able keep to throttle down all the way through 8. I have a 1958 XK150 Jaguar I race in C-Production. Best time @Willow is 1.42 and I'd really like to break into 1.39s. It's not a light car (3200 pounds) and has about 295 HP at the rear wheels with a solid rear axle...pushes in turns 2 & 3. Based on your line I probably need to be a little wider at the top of Budweiser as well. Thanks for sharing...
I m so proud about your work Jack! The old way will always be the Best way! Merry Christmas to you, your family and your wonderfull Porsche! Cheers from Switzerland! From a passionate racer
A better comparison would be- What can Jack do in the GT3 at Willow. You've got home court advantage here unless the pro driver lives at WS also. Enjoy watching your videos Jack...even the 12ga garage.
Thanks! I would love someone to set me up with tires and fuel for a day to set a lap in the latest GT3. :) For what it's worth, the driver of the GT3 (Randy Pobst) holds 12 of the top 20 spots for Willow Springs laps at FastestLaps.com . So he's maybe even more of a local to it than me.
The turns carry the speed. Carrying the momentum is key. Nonetheless, goes to show that skill, experience counts just as much. Nothing to be ashamed of. Like, David slaying Goliath, well done! I always support the underdog@ Aloha! 🤙🙂🤙
Awesome Jack! I learned on a '78 911 SC and driving the new 991 GT3 is like a racers dream. Two of my friends just got their first Porsche...991 GT3. I instruct them and at the same time realize they have no idea how good they have it....in terms of driveability and doing the impossible in a 911. I lost Porsche lust after the H20 years....but WOW has Porsche come back!
The aero on my car is big and conspicous, but it doesn't give me any advantage over the GT3. The early 911 chassis generates a LOT of lift at speed. My big wing cancels it out, but the bare chassis on the 991 generation is great before you even consider the factory wing and front splitter. The difference between the two? Weight and... Tyson Schmidt. He's the guy who came up with the architecture for my suspension. It was done on the cheap (well, relative to what other guys do), and sometimes involved simple changes to the architecture of the suspension components.
Jack, Lets run some 102's and some cams and 6 butterfly with M84, the 100 hp gain will stop the straight away disadvantage. I like to see old air cooled cars beat new water cars. Great job by the way William
What are your thoughts about squeezing more HP out of your engine rather than focusing on suspension, weight, or aero dynamics? Surely there's more than 272 HP in your M64.
Jack, might have asked you this before on another post, but have you ever taken your car out to Chuckwalla? Would be interesting to see how it/you do there. Also, would love to see you get into some racing with POC/NASA/PCA great video! Just picked up a 991.1 GT3 but I have raced 944's, boxsters and a bunch of late 70'/80's 911's with 3.0's and 3.2's --Anything under 1:30 @ WSIR is flying.
At the risk of sounding like a curmudgeon, to imply that a ‘72 911 is in the same zipcode as the 991 GT3 performance-wise is a farce. Sorry, I call foul. You are correct -- it’s not a fair or true apples-to-apples comparison. For it to be, it would need to be the same driver driving back-to-back (i.e. same time-of-day & near identical track conditions), on same tires in the similar condition (i.e., equivalent # of heat cycles). Even discounting above factors, the 991 (any 991 muchless a GT3) should handily outperform your vintage 72 911. Who is the professional racecar driver the 991 GT3? Equating a professional racecar driver to being fast is like saying Katy Perry has talent because she’s famous. Should this professional driver happen to be Randy Pobst or Patrick Long, would he share a similar assessment? (I.e., that your 72 911 is 4/10 of a second quicker than the 991 GT3.) Maybe your 911 is more highly modified than you’re letting on. You start by saying ‘a lot of quirky modifications’ but then only offer up ‘outlaw suspension’ -- whatever that means (respectfully). In any case, if only lightly modified then -- again -- I call foul. If highly modified, then this video becomes as pointless as the guy at the watercooler bragging about how his Subaru w/ Stage 3 upgrade kit makes his car as fast as a Porsche Turbo whilst completely discounting that the Turbo owner can go chip his car too. All that said, I love your car :)
We agree. The takeaway from this shouldn't be that a base-model 1972 911 is in any way the equal of a modern GT3. My car is not stock. A lot of the work on it was done on the cheap, but a lot of money was spent -- and the engine, transaxle, brakes and suspension are all NOT the original 1972 pieces. You can read about everything done to my car at the Pelican Parts forum. But it is interesting that you can take a small fraction of the cost of a new GT3 and build up an old 911 to beat it at Willow Springs. That doesn't mean you've made the equivalent of a GT3 -- if Willow Springs had a 5th-to-2nd-gear corner, I'd lose a lot of ground to a 475-hp car. But for this one track, the oldest and fastest road course in the United States, my best lap is better than Randy Pobst's best lap in the 991 GT3. And it's better because of my car's cornering speeds, which you would think a GT3 would be able to beat. Now, could the GT3 have its suspension tuned to go even faster? I'm sure it could. Porsche has to find a way to make those MPSC2s last, for one thing. And Pobst's lap is the beginning of the journey for the new GT3, whereas my lap comes at the end of years of testing and tuning in my old 911. But it's still surprising that the times are so close. And that is a tribute to the capability of the original design, and how it evolved (both within Porsche and the aftermarket for Porsche racing) to make the old cars faster and faster and faster.
Nice work Jack. I really enjoyed your other video about your "evolution" over the years. Funny nobody seems to have mentioned weight as the main factor here. I shouldn't downplay the driving (which is superbly smooth), but you must be 400-500 lbs down on the 991?
498 pounds, by my math. And I would say it's just about the ONLY factor. Put another way, how would this race go if you took away 500# from the 991? It would leave me far behind. I think we've all gotten used to the fact that horsepower can compensate for weight when it comes to acceleration, and we're now somewhat blind to the fact that 475 HP does nothing for you when it comes to cornering. The GT3's suspension is superior to mine. But it can't make up (completely) for the newer car's bulk.
I've run NT01 and MPSC2 and don't find much difference to be honest. Ps cup2 has a 180 treadwear similar to the Nt01. My cornering speeds were similar with both tires.
Jack how much camber are you running? This seems to be one of the big key differences between factory cars even on sticky tyres and race prepped cars. Your footage shows some big lateral g numbers that I don't think any production car from the large volume manufacturers is going to match. In my own 944 S2 I have seen 1.6g at 25 mph, 1.5g at 55 mph and over 1.25g at 100+ apex speeds but that is with 4 degrees -ve camber up front, way more than any production car is going to run. I think this is why as long as you keep developing the car you are always going to have this cornering gap on the Porsche street cars.
Neil Haughey Less than 3° in back, less than 2° in front. The odd thing is, I get a longer lifespan out of my (less-expensive) tires than the GT3 does. The big picture here is that something is allowing my car to corner faster than the new model. The biggest part of that is weight. Porsche keeps making their cars bigger -- and fatter. If they truly want to make a variant of the 911 that can handle, they should cut weight. Outside of that -- if camber is a big part of the issue -- why not give the GT3 dynamic camber settings -- controlled electonically like they do for the new 4-wheel steering system. A 'sport-plus' button could add a degree of camber for track use -- or you could come up with a computer-controlled scheme ton increase camber relative to body roll.
Hi Jack, what are your thoughts on playing with more power? Since you have a well sorted car in terms of aero and suspension that seems to be the obvious equalizer needed to keep you ahead of them.
Well, no one regrets more power. But at the same time, it's really at the bottom of my list in terms of bang for the buck. I mean, the GT3 in this clip has 475 hp. For me to get that, I'd be looking at a watercooled engine swap, with turbos and intercooler, and radiators and all of that adding a pretty substantial amount of weight. The faster SCCA T1 Corvettes run 1:25s (on slicks or Hoosier autocross tires) and they run in the 500 hp neighborhood. So that second or so would be possible, I think. But to get that power, and have it be reliable, would probably cost me something close to as much as I've got in the car already. My aero cost practically nothing and got me the same lap time improvement. I know there are a lot of street cars that are capable of being cranked up to awesome power levels -- STIs, Evos and what not. But those really aren't engines you can run as hard as I do and for as many years as I do with a Porsche Mezger flat six. At least, I'm not seeing that kind of reliability on the local time attack scene. And I don't have the budget for regular rebuilds. Or at least, it's hard to justify relative to what it would do for my lap times.
Just an observation, but it looks like the lap timer in your video is consistently about 10 seconds ahead of the GT3, even though both of you seem to be placed relatively close to the same point at the track. What gives? BTW, great driving Jack, and you have obviously squeezed a lot of performance out of your car. I would also venture to say that you probably have thousands of laps more on this track than the pro-driver does. Right?
The start/finish for my timed lap was at the turn 9 cone, because it's easy to accurately tag in a video clip. So the running lap time is kind of meaningless. The speeds are accurate, though. And thanks. I probably do have more laps than Pobst at Willow, although he does a lot of testing for Motor Trend there. He was the guy Porsche allowed to set the lap records for WSIR in the 918, 50th Anniversary Edition 911, and now the GT3.
Jack Olsen Great response. Thanks for the explanation. Good luck with further development of the car. I know that you'll never stop improving... and neither should you ;-)
The newer cars is all about momentum and that the older cars cannot go in as deep due to the lack of electronics and big brakes. In an actual race, the newer car will walk away if the driver is any good.
Nice seeing you at the track the other day. Hey, why do you think Pobst is so slow in Turn 8? He's only doing about 125 at the apex. (He does pick up a few mph coming out of it.) Even in the 918 he's slow in that turn.
That's a good question. He's familiar with the track. And he's a professional. But it does seem like he breathes off the gas around the entry to 8, which you usually don't need to do.
Jack Olsen I was using an online mph vs distance calculator, and the results are interesting. If you were to drive a 100 mph average, the 2.5 course would take 1:30. But just 1 mph faster would give you almost a second. So perhaps Pobst doesn't need to be dramatically faster to make a big difference in time, just a few mph. But yeah, he does look really slow going into 8. But hey, it's not like he has a team mate to beat, and the magazine isn't going to pay him any less just because he's a second or two slow.
Karim Marouf At the same time, Porsche (I assume) approved him for the lap and the article. They'd okayed him to set the production car record in the 918 a few months ago. And the lap times are going to be published -- and it's a track that's served as a reference for lap times for a long time. And it's worth noting that Pobst's time in the 991 GT3 is significantly faster than the previous best by a pro driver in the 997 GT3 RS.
Jack Olsen He actually dips down to 120 mph just before turning in. That's even a few MPH slower than my Mustang (about 3200 lb, Federal 595 RSR street tires). So I have to imagine he's taking it just a little easy knowing that he's still gonna set a great time. How else could you explain it?
Karim Marouf Looking at the official Willow lap records, it's funny to think that even with all the 918's super tech and crazy horsepower, a little old Formula Ford with 120 hp can match the 918's lap time even at this big horsepower track.
Well, of course. But then if you let me run those same R888s, my cornering speeds would increase as well. Right now, the GT3 is running MPSC2s, which are slightly better than my NT01s, but still in the same basic range of capability. R888s are fast on a track, but they wouldn't really fit most defnitions of a dual-purpose tire. I am NOT saying my car is better than the new GT3. The reason for the cornering-speed differences is weight more than anything else. The surprising thing is that 42 years of technological improvements haven't done more to overcome that weight penalty when it comes to cornering.
Everytime someone does a comparison between an owner driver of a modded car vs a "professional" who gets 3 laps in a stock car...if you owned the new one and had as much seat time, you'd be a fair bit quicker than the pro driver.
Well, the professional in this case holds 7 of the top 10 lap records at this track, including the outright record and the previous outright record. And he's a 'Porsche-supported' driver, which means he gets considerably more time and attention than 3 laps and whatever. Because it's for Motor Trend, Porsche has a pretty significant interest in the lap time being the best they can get. He has a lot more seat time than me, and would probably drive my car faster at that track than I do.
@@JackOlsen I don't agree think he can beat your lap time in 3 laps either but it's all keyboard racing. All I know is he did a 1:24.6 in a 991.2 GT3 and we both know the 991.2 is not 2.5s faster than a 991.1. He also drive the ACR around MRLS twice and was 3 seconds slower the 2nd time. All I'm saying is he's not a machine and 3 laps is 3 laps. Doesn't take anything away from your car, being competitive with a much newer car but cherry picking cornering min speeds is unfair.
Your commitment to momentum in the turns is amazing. You've got that car sorted and you can trust it.
Maybe the gt3 driver needs to slow down a little and focus on getting the cornering speed up, before they wail on it.
Thanks Jack for this comparison. I've been doing this same thing comparing your laps to mine in my 991 GT3. I'm a novice, having tracked Big Willow only twice, so your videos are great learning tools. I'm slowly gaining trust that I have enough grip to maintain my speed thru turns 2 and 8!
How strange, when I watched that motor trend lap you were the first person to come to mind, and I did think you take the corners quicker.
Jack...I find your videos very instructive and interesting. I've been racing Vintage cars for 20+ years and really enjoy Willow. Watching your videos its obvious to me I'm losing some time in the big sweeper (turns 2 & 3)...and I haven't been able keep to throttle down all the way through 8. I have a 1958 XK150 Jaguar I race in C-Production. Best time @Willow is 1.42 and I'd really like to break into 1.39s. It's not a light car (3200 pounds) and has about 295 HP at the rear wheels with a solid rear axle...pushes in turns 2 & 3. Based on your line I probably need to be a little wider at the top of Budweiser as well. Thanks for sharing...
I m so proud about your work Jack! The old way will always be the Best way! Merry Christmas to you, your family and your wonderfull Porsche! Cheers from Switzerland! From a passionate racer
A better comparison would be- What can Jack do in the GT3 at Willow. You've got home court advantage here unless the pro driver lives at WS also.
Enjoy watching your videos Jack...even the 12ga garage.
Thanks! I would love someone to set me up with tires and fuel for a day to set a lap in the latest GT3. :) For what it's worth, the driver of the GT3 (Randy Pobst) holds 12 of the top 20 spots for Willow Springs laps at FastestLaps.com . So he's maybe even more of a local to it than me.
The turns carry the speed.
Carrying the momentum is key.
Nonetheless, goes to show that skill, experience counts just as much.
Nothing to be ashamed of.
Like, David slaying Goliath,
well done!
I always support the underdog@
Aloha! 🤙🙂🤙
Awesome Jack! I learned on a '78 911 SC and driving the new 991 GT3 is like a racers dream. Two of my friends just got their first Porsche...991 GT3. I instruct them and at the same time realize they have no idea how good they have it....in terms of driveability and doing the impossible in a 911. I lost Porsche lust after the H20 years....but WOW has Porsche come back!
Really enjoyed watching this video Jack! Your 911 is my favorite street/track driven Porsche!
Unbelievable.. You Sir are a big inspiration to me and to any track driver! Keep up that good work :-)
Is it odd that when I first watched that segment on the GT3, my first thought was that Jack's quicker around willow than that driver.
The aero on my car is big and conspicous, but it doesn't give me any advantage over the GT3. The early 911 chassis generates a LOT of lift at speed. My big wing cancels it out, but the bare chassis on the 991 generation is great before you even consider the factory wing and front splitter.
The difference between the two? Weight and... Tyson Schmidt. He's the guy who came up with the architecture for my suspension. It was done on the cheap (well, relative to what other guys do), and sometimes involved simple changes to the architecture of the suspension components.
2200 lbs?
Henry Mariano
2,600 and change, with me in it and ready to race.
And great video as always. Your videos helped me a lot at WSIR.
Jack, Lets run some 102's and some cams and 6 butterfly with M84, the 100 hp gain will stop the straight away disadvantage. I like to see old air cooled cars beat new water cars. Great job by the way William
What are your thoughts about squeezing more HP out of your engine rather than focusing on suspension, weight, or aero dynamics? Surely there's more than 272 HP in your M64.
Jack, might have asked you this before on another post, but have you ever taken your car out to Chuckwalla? Would be interesting to see how it/you do there. Also, would love to see you get into some racing with POC/NASA/PCA great video! Just picked up a 991.1 GT3 but I have raced 944's, boxsters and a bunch of late 70'/80's 911's with 3.0's and 3.2's --Anything under 1:30 @ WSIR is flying.
Well done, Jack! Really enjoyed it.
At the risk of sounding like a curmudgeon, to imply that a ‘72 911 is in the same zipcode as the 991 GT3 performance-wise is a farce. Sorry, I call foul.
You are correct -- it’s not a fair or true apples-to-apples comparison. For it to be, it would need to be the same driver driving back-to-back (i.e. same time-of-day & near identical track conditions), on same tires in the similar condition (i.e., equivalent # of heat cycles).
Even discounting above factors, the 991 (any 991 muchless a GT3) should handily outperform your vintage 72 911. Who is the professional racecar driver the 991 GT3? Equating a professional racecar driver to being fast is like saying Katy Perry has talent because she’s famous. Should this professional driver happen to be Randy Pobst or Patrick Long, would he share a similar assessment? (I.e., that your 72 911 is 4/10 of a second quicker than the 991 GT3.)
Maybe your 911 is more highly modified than you’re letting on. You start by saying ‘a lot of quirky modifications’ but then only offer up ‘outlaw suspension’ -- whatever that means (respectfully). In any case, if only lightly modified then -- again -- I call foul. If highly modified, then this video becomes as pointless as the guy at the watercooler bragging about how his Subaru w/ Stage 3 upgrade kit makes his car as fast as a Porsche Turbo whilst completely discounting that the Turbo owner can go chip his car too.
All that said, I love your car :)
We agree. The takeaway from this shouldn't be that a base-model 1972 911 is in any way the equal of a modern GT3. My car is not stock. A lot of the work on it was done on the cheap, but a lot of money was spent -- and the engine, transaxle, brakes and suspension are all NOT the original 1972 pieces. You can read about everything done to my car at the Pelican Parts forum.
But it is interesting that you can take a small fraction of the cost of a new GT3 and build up an old 911 to beat it at Willow Springs. That doesn't mean you've made the equivalent of a GT3 -- if Willow Springs had a 5th-to-2nd-gear corner, I'd lose a lot of ground to a 475-hp car. But for this one track, the oldest and fastest road course in the United States, my best lap is better than Randy Pobst's best lap in the 991 GT3. And it's better because of my car's cornering speeds, which you would think a GT3 would be able to beat.
Now, could the GT3 have its suspension tuned to go even faster? I'm sure it could. Porsche has to find a way to make those MPSC2s last, for one thing. And Pobst's lap is the beginning of the journey for the new GT3, whereas my lap comes at the end of years of testing and tuning in my old 911. But it's still surprising that the times are so close. And that is a tribute to the capability of the original design, and how it evolved (both within Porsche and the aftermarket for Porsche racing) to make the old cars faster and faster and faster.
Nicely done
jack that is a great car- and I would rather have it than a GT3- nice driving.
Hahaha this is so awesome! Great job and love your 911!
Nice work Jack. I really enjoyed your other video about your "evolution" over the years. Funny nobody seems to have mentioned weight as the main factor here. I shouldn't downplay the driving (which is superbly smooth), but you must be 400-500 lbs down on the 991?
498 pounds, by my math. And I would say it's just about the ONLY factor. Put another way, how would this race go if you took away 500# from the 991? It would leave me far behind.
I think we've all gotten used to the fact that horsepower can compensate for weight when it comes to acceleration, and we're now somewhat blind to the fact that 475 HP does nothing for you when it comes to cornering. The GT3's suspension is superior to mine. But it can't make up (completely) for the newer car's bulk.
I've run NT01 and MPSC2 and don't find much difference to be honest. Ps cup2 has a 180 treadwear similar to the Nt01. My cornering speeds were similar with both tires.
Jack how much camber are you running? This seems to be one of the big key differences between factory cars even on sticky tyres and race prepped cars. Your footage shows some big lateral g numbers that I don't think any production car from the large volume manufacturers is going to match. In my own 944 S2 I have seen 1.6g at 25 mph, 1.5g at 55 mph and over 1.25g at 100+ apex speeds but that is with 4 degrees -ve camber up front, way more than any production car is going to run. I think this is why as long as you keep developing the car you are always going to have this cornering gap on the Porsche street cars.
Neil Haughey Less than 3° in back, less than 2° in front. The odd thing is, I get a longer lifespan out of my (less-expensive) tires than the GT3 does. The big picture here is that something is allowing my car to corner faster than the new model. The biggest part of that is weight. Porsche keeps making their cars bigger -- and fatter. If they truly want to make a variant of the 911 that can handle, they should cut weight. Outside of that -- if camber is a big part of the issue -- why not give the GT3 dynamic camber settings -- controlled electonically like they do for the new 4-wheel steering system. A 'sport-plus' button could add a degree of camber for track use -- or you could come up with a computer-controlled scheme ton increase camber relative to body roll.
Jack Olsen Electronic adjustable camber front and back..WOW that would be cool...
Did the GT3 have a good alignment? Seems like that and some tuning of the sway bars would knock a second off at least.
+Yargk BTW, nice driving Jack! Been watching your car's progress on Pelican for a long time! (I think we both joined the forum at the same time)
wow, that's awesome
Hi Jack, what are your thoughts on playing with more power? Since you have a well sorted car in terms of aero and suspension that seems to be the obvious equalizer needed to keep you ahead of them.
Well, no one regrets more power. But at the same time, it's really at the bottom of my list in terms of bang for the buck. I mean, the GT3 in this clip has 475 hp. For me to get that, I'd be looking at a watercooled engine swap, with turbos and intercooler, and radiators and all of that adding a pretty substantial amount of weight. The faster SCCA T1 Corvettes run 1:25s (on slicks or Hoosier autocross tires) and they run in the 500 hp neighborhood.
So that second or so would be possible, I think. But to get that power, and have it be reliable, would probably cost me something close to as much as I've got in the car already. My aero cost practically nothing and got me the same lap time improvement.
I know there are a lot of street cars that are capable of being cranked up to awesome power levels -- STIs, Evos and what not. But those really aren't engines you can run as hard as I do and for as many years as I do with a Porsche Mezger flat six. At least, I'm not seeing that kind of reliability on the local time attack scene. And I don't have the budget for regular rebuilds. Or at least, it's hard to justify relative to what it would do for my lap times.
Bravo!
Just an observation, but it looks like the lap timer in your video is consistently about 10 seconds ahead of the GT3, even though both of you seem to be placed relatively close to the same point at the track. What gives?
BTW, great driving Jack, and you have obviously squeezed a lot of performance out of your car. I would also venture to say that you probably have thousands of laps more on this track than the pro-driver does. Right?
The start/finish for my timed lap was at the turn 9 cone, because it's easy to accurately tag in a video clip. So the running lap time is kind of meaningless. The speeds are accurate, though.
And thanks. I probably do have more laps than Pobst at Willow, although he does a lot of testing for Motor Trend there. He was the guy Porsche allowed to set the lap records for WSIR in the 918, 50th Anniversary Edition 911, and now the GT3.
Jack Olsen Great response. Thanks for the explanation. Good luck with further development of the car. I know that you'll never stop improving... and neither should you ;-)
It's the functional aero.
it s more than just that
More than that. Shifts in less than 100 milliseconds, 4 wheel steering, more power, better weight distribution, etc.
The newer cars is all about momentum and that the older cars cannot go in as deep due to the lack of electronics and big brakes. In an actual race, the newer car will walk away if the driver is any good.
Nice seeing you at the track the other day. Hey, why do you think Pobst is so slow in Turn 8? He's only doing about 125 at the apex. (He does pick up a few mph coming out of it.) Even in the 918 he's slow in that turn.
That's a good question. He's familiar with the track. And he's a professional. But it does seem like he breathes off the gas around the entry to 8, which you usually don't need to do.
Jack Olsen I was using an online mph vs distance calculator, and the results are interesting. If you were to drive a 100 mph average, the 2.5 course would take 1:30. But just 1 mph faster would give you almost a second. So perhaps Pobst doesn't need to be dramatically faster to make a big difference in time, just a few mph. But yeah, he does look really slow going into 8. But hey, it's not like he has a team mate to beat, and the magazine isn't going to pay him any less just because he's a second or two slow.
Karim Marouf
At the same time, Porsche (I assume) approved him for the lap and the article. They'd okayed him to set the production car record in the 918 a few months ago. And the lap times are going to be published -- and it's a track that's served as a reference for lap times for a long time. And it's worth noting that Pobst's time in the 991 GT3 is significantly faster than the previous best by a pro driver in the 997 GT3 RS.
Jack Olsen He actually dips down to 120 mph just before turning in. That's even a few MPH slower than my Mustang (about 3200 lb, Federal 595 RSR street tires). So I have to imagine he's taking it just a little easy knowing that he's still gonna set a great time. How else could you explain it?
Karim Marouf Looking at the official Willow lap records, it's funny to think that even with all the 918's super tech and crazy horsepower, a little old Formula Ford with 120 hp can match the 918's lap time even at this big horsepower track.
Surely simply putting the GT3 on a set of road-legal track tyres, like the R888 would allow it to drive around the outside of you in the sweepers?
Well, of course. But then if you let me run those same R888s, my cornering speeds would increase as well. Right now, the GT3 is running MPSC2s, which are slightly better than my NT01s, but still in the same basic range of capability. R888s are fast on a track, but they wouldn't really fit most defnitions of a dual-purpose tire.
I am NOT saying my car is better than the new GT3. The reason for the cornering-speed differences is weight more than anything else. The surprising thing is that 42 years of technological improvements haven't done more to overcome that weight penalty when it comes to cornering.
Everytime someone does a comparison between an owner driver of a modded car vs a "professional" who gets 3 laps in a stock car...if you owned the new one and had as much seat time, you'd be a fair bit quicker than the pro driver.
Well, the professional in this case holds 7 of the top 10 lap records at this track, including the outright record and the previous outright record. And he's a 'Porsche-supported' driver, which means he gets considerably more time and attention than 3 laps and whatever. Because it's for Motor Trend, Porsche has a pretty significant interest in the lap time being the best they can get. He has a lot more seat time than me, and would probably drive my car faster at that track than I do.
@@JackOlsen I don't agree think he can beat your lap time in 3 laps either but it's all keyboard racing.
All I know is he did a 1:24.6 in a 991.2 GT3 and we both know the 991.2 is not 2.5s faster than a 991.1.
He also drive the ACR around MRLS twice and was 3 seconds slower the 2nd time.
All I'm saying is he's not a machine and 3 laps is 3 laps. Doesn't take anything away from your car, being competitive with a much newer car but cherry picking cornering min speeds is unfair.
Even if that car was faster than yours. I know who had more fun around that track.
V8 motor swap time!
hell no !