730-HP BBC ON 87-OCTANE!! HOW TO: 700-HP BBC COMBOS (ALL MOTOR, LOW COMP 540, SC 454 & TURBO 454)
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- Опубліковано 29 вер 2024
- HOW MUCH POWER CAN I MAKE ON 87 OCTANE? HOW MUCH POWER WILL A BIG BLOCK CHEVY MAKE ON 87 OCTANE? DOES A MOTOR MAKE MORE POWER ON 87 OR 91 OCTANE? CAN I MAKE OVER 700 HP ON 87 OCTANE? CAN I MAKE OVER 700 HP WITH A SUPERCHARGED, JUNKYARD 454? CAN I RUN A TURBO ON A JUNKYARD 454? WHICH IS BETTER, A BLOWER OR TURBO? DOES A VORTECH SUPERCHARGER MAKE GOOD POWER? HOW WELL DOES A TURBO BIG BLOCK WORK? CHECK OUT THIS VIDEO WHERE I STARTED OFF MY COMPARING A 730-HP 540 BUILD RUN ON BOTH 91 AND 87 OCTANE. THE 700-HP COMBOS TESTED ALSO INCLUDED A VORTECH (YSI) SUPERCHARGED, JUNKYARD GEN 6 454 AND A TURBO (JUNKYARD) GEN 6 454 EQUIPPED WITH A HEADS, CAM AND INTAKE UPGRADE.
We need a 427 comparison for April 27th (427 day). Maybe small block/LS/big block and whatever other combos you can find that have ~427 cubic inches!!!!!!
This video was scheduled to come out on April 45th.
@@ianm432 lol
LS motors can run up to 490 cubic inches! 4.125 bore and 4.500 stroke (under square). Not sure what heads to feed that....
@@confuse3671 ls3 ported will feed that as long as there is valve reliefs for enough cam or ls7 ported for budget if not AFR allday
Great vid!!!!!!!! 👍👍👍👍👍👍👍
Great info
my dad has a 454 mercruiser in his boat and trying to convince him to turbo or spice it up haha
Just picked up a 94 454 out of a winnebago yesterday 30k miles looks like one of these combos is about to be copied for Easter! Thanks rich you da man!
That "mild" na engine would be plenty.
Love the low octane stuff. Be nice to see a comparison of compression vs octane needed for max power.
I loved this comparison! Thanks for all the interesting combos you have done, it gives a man so many options and ideas! Being big blocks and fuel hungry…. I especially like the low octane combos. $$$$$
Heck yeah, nice to see some 87 octane testing.
Hp/$ would be a good talking point. I think the turbo setup might be cheaper than a good set of heads cam intake.
Fuel was race gas tho. It would eat you alive at the pump or barrel.
Would dig seeing more lower octane build results….. long rod ratio’s would be a great set of tests ! It’s the one thing that Frieberger didn’t test in their E/M’s episode of the long rod big block comparison. They kept the high octane in both configurations…… which is a shame.
Great stuff, again. Keep’em coming!
They did do a short rod vs long rod test. Won't significant difference. About 5 numbers
@@davidanderson6706 They didn’t do any octane tests.
Great video. AFR 357 heads , SV intake and 276/284 solid roller camshaft combo is what id take. That big cam with its tightish lobe separation angle would sounds nuts at idle.
I thought you were going to run some low compression, big cam, turbo on 87. Lol. I would really like to see some stuff on boost with 91.
I like builds that take low octane in mind. Here in Colorado, the highest octane is 91 for “premium”. I get disheartened when I see a build that says “pump gas”, and the octane they use, is always 93, a full two points above the 91 where I live.
you can get away with lower octane at altitude
@@richardholdener1727 I live at 6750 ft above sea level and 12,000 feet is only about 40-50 miles away from me, so I jet my carbs for 8,000 feet. I think that’s a good range to shoot for, so when I do drive up to an area where the elevation is 10,000 - 12,000 feet, the vehicle runs just fine with no stalling whatsoever.
Maybe I missed something but it seems only the first motor was on 87 pump gas 2nd race gas 3rd was e85
I was hoping to see all three on the pump
ONLY THE NA MOTOR
This tells you that with boost miniamum 91 if not e 85 for safety and a great tune
@@richardholdener1727 Richard what is a safe compression for 87 because most cars I have seen gets nasty knock at wot with 87
Why would you run 10 psi on e85. Lol
Richard, which configuration would you personally pick to use in a drag and drive event? Knowing you not only have to put up good numbers on the drag strip, but also survive driving between track locations?
Good stuff as soon as I have 2 pennies to rub together my 454 gmt400 is getting a decent build
Would love to see a 408 stroker LS boosted on 87 octane to see what it can do versus 91 octane.
not very much on 87 octane
All moter. Then add a super charger
Bro so anybody somebody explain this it's always confused me. So 540 big block chevy a most who have them nowadays a are they a custom 540 made new from some shop or are they using some 540 big block chevy from the 70s or a junkyard one or a certain generation lime 7th generation or? If I look up 540 there's so many it's not hey this is from chevy from the 70s for example. Are there multiple or its just a newer design off the old one custom from certain shops?
THE 540 CANNOT BE MADE WITH A PRODUCTION MARK 4, GEN 5 OR 6 BBC BLOCK. IT IS USUALLY MADE WITH AN AFTER MARKET BLOCK (OR GM PERF) THAT HAS THE ABILITY TO RUN THE REQUIRED BORE SIZE. FACTORY BLOCK ARE USUALLY LIMITED TO 496 CUBES.
@@richardholdener1727 Ahhh ok most would say gen 7 or other things. So most of these 540 are custom and or aftermarket blocks. Not the orignal ones. Sweet man glad someone finally cleared it up for me I appreciate that boss. 540 are some of the baddest motors out there ha
procharged rocks!
Personally I blame squirrels
Nope it's coke and hookers
So witty
Turbo setup
Anything that covers running on 87 octane I'm interested in. A goal of mine has been working out a good configuration for my old RV to run 87 without issue. Improved fuel economy and reduced octane rating add up fast when driving the beast on road trips. Made some good gains in fuel economy after tuning the carburetor when I first bought the rig. Reducing the required octane from 91 to 87 would be another big savings. My stock RV 440 is plenty low enough compression that 87 should be doable, but as is does not like 87 when under load. Installing an o2 sensor once I've got some good weather on the weekend and hope that reveals some issue with the carb tune that allows for 87 octane to be used. Otherwise I plan to upgrade intake, heads and exhaust in future and hopefully will end up with a configuration that works with 87 octane.
RV has long exhaust. Need to be as large as possible, and duals with high quality headers. Wrapping the headers helps to keep temperatures lower. And be sure that the oil pressure is below 55 psi. All you need is forty. This keeps oil cooler, and wastes less energy pumping oil. A large oil cooler is essential to keep it together with extra power
Sometimes the heads/combustion chamber doesn’t work well with lower octane even if the compression is reasonably low. I think it has to do with how well the charge mixes and swirls. Some older heads flow decent, but don’t promote mixing and swirl as well so you end up with lean spots that get hotter and cause problems with low octane.
You might be able to run it richer under load, but that’d go against trying to save money on fuel.
Can be hard with things like an RV since it’s basically always under load and everything gets hot. The same engine in a car might run 87 just fine since it’s under less load just driving and even running hard it’ll pull through the load much quicker.
@@dennisford2000 Completely replacing the exhaust is a project for this summer because it's so bad. 2.5" with log manifolds and a t join to single exhaust out the back. Everything about the stock configuration is bad for making power. Plan is for long tube headers and a y join to single that is as big as makes sense(at least 3.5") with a muffler that quiets the exhaust enough to be comfortable on long drives. There are a couple ceramic coated long tube options that will keep the heat radiating into everything nearby. I might wrap them as well once I get an idea of how they perform as delivered. Oil pressure is good. Stock 440 pump tops out at ~55psi. Also planning to see about getting some cold air to the carburetor. The RV ran good on some 100* days even climbing hills, but that is certainly the limit. Coolant temp aside, the heat coming off the dog house engine cover was intense when climbing some long hills. I would not be surprised if the air temperature into the carburetor was 150* or more on those hot days.
@@NBSV1 The heads are definitely not great; unmodified 1973 stock cast iron. Engine Masters has done several episodes specifically comparing stock 440 heads to others and anything aftermarket is a substantial improvement with some offering quite enormous improvement in power output; less timing too. If dialing the tune on the carburetor does not allow for running 87, I'm with you in thinking that once the heads are replaced the issue will be resolved due to a better combustion chamber. Aluminum heads also will prevent issues related to hot spots forming under long duration loads. Between Engine Masters, Richard Holdener and some other people on youtube testing 440s I can look forward to big improvements as certain stock parts are replaced.
@@saccaed seen many that were high , have you put a manual gauge on it. I would take it down to 48 or so. You probably will never run past 4500.
792 horsepower and 799 horsepower lol. “It’s a 500 horsepower small block man, *whispers* with no boost.”
I love NA. And I love cams, my question is, if drop only below 110 will it produce eye burning fumes ? I want chop but I will only b running it on the road
I love these series. Its a great look at a TON of info in just a few videos.
Dang! Richard let the ole red truck eat right there at the end! 😅
had to high speed the vid so it looked impressive-it's not!
Cubic inches make power.no replacement for displacement now how much do each of these engine weigh
I will take the nitrous version
110LSA ,sent before I was ready, anyway, I love the sound but will the exhaust fumes b unbearable? Or unbearable noticeable ?
just needs the proper tune
Turbo! Look at all that wonderful torque on the low end.
So Richard I’m currently refreshing the 540bbc world products Merlin in a 69 Camaro I just purchased that is rated at 600hp/650tq and I’m going to do a little drag racing, road racing and street driving with this thing and wondering how well the 2 cams you mentioned to start this video will do with this? CR is currently 9.5:1 and without getting new pistons hoping to bump that to 10:1 with a thinner head gasket and a little milling and port work. How streetable are both those cams as well as drag race and road racing with them and what springs to use?
not streetable
@@richardholdener1727 can you suggest a cam that would fit the bill and still be somewhat streetable? The first solid roller you mentioned perhaps? I’ve having a heck of a time getting to 700hp it seems with just a hint of streetsbility although it’s the least concern of the 3 venues. Help a brutha out 😁. After all, we’re both card carrying members of hair club for men😆
🔥Amazing, what these motors do on low boost🔥
Any Info on Running ZZ502 valve train and camshaft in a L29 454 N/A or F/I. Thanks Richard!!
NO-BUT I AM RUNNING THEAT CAM IN THE 8.1L SOON
@@richardholdener1727 🔥You are the Camshaft Wizard good Sir .🔥
@@richardholdener1727 Richard I'm very interested in seeing the results of this test. I have been running a 10:1 comp 496 with the GM ZZ502 cam, heads, and intake with Atomic EFI in my 70 Chevelle for years. With 3:73 gears and a well built 2004R it is a great street car that I daily drive in the summer. I'm really tempted to try your "go to" solid roller cam and a set of AFR heads but I am hesitant to mess with such a nice street combo. Love your videos thanks for always providing such great information in an entertaining manner. You were meant to do this!
See reply above to Richard. I am running the ZZ502 cam, heads, and intake with Atomic EFI on a 496 in my 70 Chevelle for years.
I just found out today Mercury Marine makes a V12 outboard that makes 600hp on 87 octane. Costs $77, 000 though hahaha
It's also supercharged if I'm not mistaken with a positive displacement blower.
@@alexwhite176 I do not believe it is. It displaces 7.6L
@@ianm432 correct. Maybe get just a power head , but what, 50 k ?
Would love to know what water temperature that intercooler is getting. Density is better than boost too.
86 degree water
I'm curious as to air temp before the cooler and after the cooler
Fire me up I love bbchevys!
Good thing you spelled it out
@@GreatLakesLogger yea I nearly put BBC and would have never lived it down 🤣
CUZ PEOPLE WOULDN'T KNOW WHAT BBC IS?
@@bigboreracing356 fords and Honda's, we don't discriminate we love them all
@@bigboreracing356 it stands for big booty chicks and that wouldn't have been appropriate. Saying I like BBC wouldn't have been fair for the skinny women
Don't get me wrong I love all the bore and stroke xl displacement stuff but let's see actual 396,427,454 ci std displacement builds
LIKE THE TWO (OF THREE) IN THIS VIDEO WHERE WE RAN STOCK 454 SHORT BLOCKS
I’d like to see what the cost is of each setup. How many HP per $100. Great video.
I hate to see the cost. Most people don't have this money including me
You could have went to 38 deg timing
Frist gang
I think it is better with a new large motor and a few mods . Not as much stress , less fuel cost, not a used junk motor. Real luck of the draw with the wrecking yard mill. And if you have power adders you got a gap the rings , we were careful and I have successfully reused 200,000 rings . Cylinder had no ridge and perfect cross hatching. 77 M110 .
How much power would the NA motor pick up with 13:1 compression?
10-12%
I like the idea of a big inch big block that will make that kind of power NA on pump gas. Unfortunately these kinds of engines are not feasible for most people…