Very interesting, I have a 97 block with the PI headswap done. Compression is upped to 10.5 with full bolt ons about to get tuned. I have been looking for a reliable base to get a guess and this is promising. Thanks
This video is showing 300 rwhp off a few basic bolt ons and a PI head swap. 99+ GT's came with PI heads. While we have other people saying basically the same bolt ons with a dyno tune saying 260ish rwhp. Doesn't make sense to me.
The engines that came with PI heads have a lower compression than the NPI engines that have the PI swap done. Mod for mod an NPI engine with a PI swap will be more powerful than the PI engine. Dyno numbers are hard to compare. For example, a Mustang dyno will generally give lower numbers than a Dynojet.
@@lollol-xp4mc depends on who you ask, if you ask normal people building something that's better than what they had then its a great idea. But if you ask those idiots that build super high horsepower garage queens that they can barely get into the powerband before stopping at another red light and only have like 10% street drivability then yea they'll probably say don't do it.
These are the numbers I’m trying to reach on my 96 I have a set of heads to put on mine just haven’t done so yet. What else was done to your car? Thought about finding a set of cams too but I know I’m limited due to piston to valve clearances.. I have a list of some that may work but haven’t looked much into them.
That dyno seems off to me, the 10.5:1 conpression ratio only give 5 hp at most and that's from my friends build so its not really worth the increase. I've seen similar builds only doing 250-260 at best I've seen all bolt ons with a 262 h cams barely make it to 300+hp. So I doubt it makes 300 wheell because I have personally seen npi engines with pi swaps with full bolt ons without cams and with ported heads only making at best 265 at best if you mess with timing. Npi heads are just as good and start to flow better at .500 lift, the man thing people do is use the pi cams and intakes on the npi heads. But looking at the specs between the two is the slight difference below .475 lift and it's only by a little no much to worry about. I personally don't think it's work swapping the heads since a ported and polished npi head has been shown to flow better than a ported n polished Pi head, but the intake and cams are better but the cams aren't something I would get if you want a replacement I would just go get a better more hoped up set tbh if your looking for power
It was probably po heads and intake only and maybe headers too but 300 at crank maybe and 260-270 wheel I can see maybe but idk? Rwhp is 215-225 oem and the pi swap should add 50+ hp so idk man ? But at what rpm is a factor as well that 300 maybe be only in 1st or 2nd gear then fall Off at higher rpm’s which these engines do unfortunately sad😢 it’s why I may put in a boss 302 crank set up in a coyote eventually? It’s tons of money however u build em but the 4.6 are cheaper builds and decent fuel milage and an underdog engine so I may see what can be done with mine ? And u know the 1st konesig CCR was equipped with a 4.6 ford v8? Lots of people have no idea it had that JS it can be awesome if set up right and in a lightweight car mid engine or forced air works too lol
Lol my 2002 gt made 263 whp with kooks long tubes, x pipe, magnaflow cat back, accufad throttle body, c&l plenum, jlt CIA, and aluminum drive shaft of and dyno tune
What's year pi heads and and what cams do you have? I'm about to do a pi swap for my 98gt and I have 99gt pi heads, the pi cams that cam with the heads, and a new pi intake. i also have CAI, 78mm TB, MSD coil packs, stage 1 clutch, short throw shifter, long tubes, off road h pipe and slp loudmouth. I'm having it all done this month and having it dyno tuned so I'm hoping I end up around 290whp and over 300rwt
The cams are just the regular PI cams that came with the heads. The heads were low mile Romeo from someone on Craigslist who bought them from Summit so idk the year. I'd be surprised if you didn't hit your mark.
The Octane Addicts oh okay awesome. I see a lot of videos of pi swaps on the dyno and they'll usually have some aftermarket cams. I'm having all the work professionally done this week and dyno tuned. have you raced any camaros with this car yet?
The Octane Addicts that's awesome. I'm getting my car back next week, I'm eager to find some camaros or this hyundai genesis 2.0t that held his own against me in a race. need a rematch lol. I'm getting all my work done and dyno tuned at Mid atlantic preformance in Chester, VA
SnifferSock that's awesome buddy. I'd love to see it! I believe Mike Roush is the guy that's working on and tuning my car. I'd post a video of it once I get it back
John Van Nortrick So what issues do you have? I'm not very familiar with the 274s, but I think it is necessary to degree them or else there will be ptv clearance issues.
I'm planning on doing this swap to my 98 gt later on this year. Actually picking up the parts for it today. I have heard about ticking after the swap. Is there piston to valve clearance issues and should I upgrade to better valve springs? Did you run into these issues?
clutchmaster2012 Unless the timing is really far off there won't be a ptv clearance problem with stock cams. As for springs, unless you plan to change to aftermarket cams the originals will be fine.
I have an 03 mustang gt with an 07 cvpi swap, has a fender well cai, 75mm tb and 75mm UP, Portmatched heads, with a tune what would be your power estimate?? It runs good but I feel like I dont get anything from the mods until it gets tuned
It wasn't tuned in this video but most tuners can work with any of the big brands. We did end up using an SCT but something like an Ngauge would have been better.
The Octane Addicts thanks man. Im looking to get a 2v because they are somewhat affordable at around here. And im just trynna do my research with all the little bit of info you can really find on these things. Appreciate it!
Yes, PI heads flow better and will up the compression on a NPI (non-performance improved) engine. Not the easiest, but one of the best bang for your buck mods for an NPI motor.
@@jarsco9477 It varies, but since they are stock parts, they're fairly cheap. Craigslist or FB marketplace usually has the best deals for parts like that.
@@The_Octane_Addicts npi heads actually flow better a .500 lift and up, and they are close to the same all the way up to .500 lift. They flow about the same but the npi intake is trash and holds them back. There is a only a little bit of difference between the 2 in terms of air flow and its not much at all
Masen don't know anything about those specifically but I'd guess those would be maxed out by 350whp. Plenty good unless you're running e85 or boost anyway.
Millers Garage never got around to getting it tuned, unfortunately the engine developed signs of a dying bearing and was pulled about a month after this video was shot.
I'd be very happy with 300 whp, I don't think anyone these day's buy's this car because they want to rip everyone a new A hole on the street. Last time I had that mentality I was driving a 98 v6 f-body with nitrous. Now I'm 37 and can have a car that isn't my daily, just for fun. Bought a 99 GT a week ago because it's sexy and sounds great, I will do some stuff to it because who doesn't like a little more hp.
All that thing needs is 3.73 rear gears and it will be a beast!
Very interesting, I have a 97 block with the PI headswap done. Compression is upped to 10.5 with full bolt ons about to get tuned. I have been looking for a reliable base to get a guess and this is promising. Thanks
Nick Bray No problem, glad you found it helpful.
This video is showing 300 rwhp off a few basic bolt ons and a PI head swap. 99+ GT's came with PI heads. While we have other people saying basically the same bolt ons with a dyno tune saying 260ish rwhp. Doesn't make sense to me.
The engines that came with PI heads have a lower compression than the NPI engines that have the PI swap done. Mod for mod an NPI engine with a PI swap will be more powerful than the PI engine. Dyno numbers are hard to compare. For example, a Mustang dyno will generally give lower numbers than a Dynojet.
2v motors can hit a little over 400 wheel NA just buy using the NPI block with the PI head, stage 3 cams, long tubes, and a good dyno tune
I'd love to do a PI swap 96-98. I'd really love to get a Mark 8 short block and toss some PI heads on that.
Aviator shortblocks are good options as well.
I’m going for 300hp NA on my vic. Then I wanna hit it with a 75 shot.
Thats a bit of a waste of money. 4.6 in mustangs at 300whp is still not that fast nvm in a car thats 700 pounds more its just not worth it
Go for it, I plan on doing the same thing to my crownvic police interceptor
@@lollol-xp4mc depends on who you ask, if you ask normal people building something that's better than what they had then its a great idea. But if you ask those idiots that build super high horsepower garage queens that they can barely get into the powerband before stopping at another red light and only have like 10% street drivability then yea they'll probably say don't do it.
These are the numbers I’m trying to reach on my 96 I have a set of heads to put on mine just haven’t done so yet. What else was done to your car? Thought about finding a set of cams too but I know I’m limited due to piston to valve clearances.. I have a list of some that may work but haven’t looked much into them.
So ur using the non npi motor to raise compression worth he pi heads. Smart
That dyno seems off to me, the 10.5:1 conpression ratio only give 5 hp at most and that's from my friends build so its not really worth the increase. I've seen similar builds only doing 250-260 at best I've seen all bolt ons with a 262 h cams barely make it to 300+hp. So I doubt it makes 300 wheell because I have personally seen npi engines with pi swaps with full bolt ons without cams and with ported heads only making at best 265 at best if you mess with timing. Npi heads are just as good and start to flow better at .500 lift, the man thing people do is use the pi cams and intakes on the npi heads. But looking at the specs between the two is the slight difference below .475 lift and it's only by a little no much to worry about. I personally don't think it's work swapping the heads since a ported and polished npi head has been shown to flow better than a ported n polished Pi head, but the intake and cams are better but the cams aren't something I would get if you want a replacement I would just go get a better more hoped up set tbh if your looking for power
It was probably po heads and intake only and maybe headers too but 300 at crank maybe and 260-270 wheel I can see maybe but idk? Rwhp is 215-225 oem and the pi swap should add 50+ hp so idk man ? But at what rpm is a factor as well that 300 maybe be only in 1st or 2nd gear then fall
Off at higher rpm’s which these engines do unfortunately sad😢 it’s why I may put in a boss 302 crank set up in a coyote eventually? It’s tons of money however u build em but the 4.6 are cheaper builds and decent fuel milage and an underdog engine so I may see what can be done with mine ? And u know the 1st konesig CCR was equipped with a 4.6 ford v8? Lots of people have no idea it had that JS it can be awesome if set up right and in a lightweight car mid engine or forced air works too lol
Was that with or without headers and just pi swap? Or injectors and other parts as well as fuel pump and what?
Yes on the headers, stock pump and injectors though. The description has a list if you want specifics.
Lol my 2002 gt made 263 whp with kooks long tubes, x pipe, magnaflow cat back, accufad throttle body, c&l plenum, jlt CIA, and aluminum drive shaft of and dyno tune
Savage Habits lol, I made 263 rwhp on a Crown vic CVPI 2004 with all bolt on, stock exhaust manifold ported and stock air box with 3 angle valve job.
All dynos read differently, there are dynos out there that this same car would be lucky to make 250 on lol
What's year pi heads and and what cams do you have? I'm about to do a pi swap for my 98gt and I have 99gt pi heads, the pi cams that cam with the heads, and a new pi intake. i also have CAI, 78mm TB, MSD coil packs, stage 1 clutch, short throw shifter, long tubes, off road h pipe and slp loudmouth. I'm having it all done this month and having it dyno tuned so I'm hoping I end up around 290whp and over 300rwt
The cams are just the regular PI cams that came with the heads. The heads were low mile Romeo from someone on Craigslist who bought them from Summit so idk the year. I'd be surprised if you didn't hit your mark.
The Octane Addicts oh okay awesome. I see a lot of videos of pi swaps on the dyno and they'll usually have some aftermarket cams. I'm having all the work professionally done this week and dyno tuned. have you raced any camaros with this car yet?
The Octane Addicts that's awesome. I'm getting my car back next week, I'm eager to find some camaros or this hyundai genesis 2.0t that held his own against me in a race. need a rematch lol. I'm getting all my work done and dyno tuned at Mid atlantic preformance in Chester, VA
SnifferSock that's awesome buddy. I'd love to see it! I believe Mike Roush is the guy that's working on and tuning my car. I'd post a video of it once I get it back
aMcSpank aMcSpank This car is getting ready for a tune as well... except it now has a forged 5.0 stroker. Hopefully have a vid up in a few weeks.
Hey guys,need help I've got 96 mustang gt,doing pi swap,in was wanted to install XE274H 14 cams did I fucked up new to mustangs wanting to build once
John Van Nortrick So what issues do you have? I'm not very familiar with the 274s, but I think it is necessary to degree them or else there will be ptv clearance issues.
I'm planning on doing this swap to my 98 gt later on this year. Actually picking up the parts for it today. I have heard about ticking after the swap. Is there piston to valve clearance issues and should I upgrade to better valve springs? Did you run into these issues?
clutchmaster2012 Unless the timing is really far off there won't be a ptv clearance problem with stock cams. As for springs, unless you plan to change to aftermarket cams the originals will be fine.
The Octane Addicts awesome thanks!
I have an 03 mustang gt with an 07 cvpi swap, has a fender well cai, 75mm tb and 75mm UP, Portmatched heads, with a tune what would be your power estimate?? It runs good but I feel like I dont get anything from the mods until it gets tuned
It's hard to say but ballpark ~210-250whp with torque on the upper half of the 200s isn't an unreasonable expectation after a tune.
Compared to stock anything is good lol But I appreciate your input. Ready to get my girl tuned
@@creepystank420 🤘
the dyno numbers is a joke
the car barely finished the run
I thought I was the only one who was thinking it took forever to finish lol
What tuner do you use with something like this?
It wasn't tuned in this video but most tuners can work with any of the big brands. We did end up using an SCT but something like an Ngauge would have been better.
The Octane Addicts thanks man. Im looking to get a 2v because they are somewhat affordable at around here. And im just trynna do my research with all the little bit of info you can really find on these things. Appreciate it!
Hey man how's she running?
Tsal Tsirf really good, swapped the 4.6 out for a forged one. Big plans for this car.
Quick question, what's a Pi swap? I see it everywhere
Yes, PI heads flow better and will up the compression on a NPI (non-performance improved) engine. Not the easiest, but one of the best bang for your buck mods for an NPI motor.
@@The_Octane_Addicts how much are they?
@@jarsco9477 It varies, but since they are stock parts, they're fairly cheap. Craigslist or FB marketplace usually has the best deals for parts like that.
@@The_Octane_Addicts npi heads actually flow better a .500 lift and up, and they are close to the same all the way up to .500 lift. They flow about the same but the npi intake is trash and holds them back. There is a only a little bit of difference between the 2 in terms of air flow and its not much at all
what size fuel injectors did you use?
Just the stock 19lb/hr injectors in this video. They were pretty close to being maxed out. Currently running 42lb/hr Lightning injectors.
i was going to try to get some 24lb injectors from an f150 out of the junkyard and hope that they would work just fine.
Masen don't know anything about those specifically but I'd guess those would be maxed out by 350whp. Plenty good unless you're running e85 or boost anyway.
Did you gain any power with a tune ?
Millers Garage never got around to getting it tuned, unfortunately the engine developed signs of a dying bearing and was pulled about a month after this video was shot.
eh
I'd be very happy with 300 whp, I don't think anyone these day's buy's this car because they want to rip everyone a new A hole on the street. Last time I had that mentality I was driving a 98 v6 f-body with nitrous. Now I'm 37 and can have a car that isn't my daily, just for fun. Bought a 99 GT a week ago because it's sexy and sounds great, I will do some stuff to it because who doesn't like a little more hp.