[Third Gen Racer]

Justin Martin's HED ??

 

[Srs_Chris]

Nitrous Pro Modified?

 

[TheRevII]

If you're talking no power adders and automobile racing I'd think one of those big inch Sonny's or Musi PM engines would get the nod. They're what - 2100,2200hp?

 

[1963 corvette]

If you're talking no power adders and automobile racing I'd think one of those big inch Sonny's or Musi PM engines would get the nod. They're what - 2100,2200hp?

Sonny's we had didn't make 2000 na.Pretty close but not quite.

 

[1963 corvette]

I would say the Briggs vanguard twin cyl pretty stout.

 

[mrdragster1970]

Nitrous Pro Modified?

That would be my bet.

 

[ch3no2]

Are we talking all motor or with power adders? Max power or most hp/L?

 

[Third Gen Racer]

I am talking with power adder. Say Justin's car is turbo but on gas.
Wallac says 3550 pounds 3.85 at 191
Your HP computed from your vehicle ET is 3,072.48 flywheel HP and 2,765.23 rear wheel HP.
Your HP computed from your vehicle MPH is 3,844.06 flywheel HP and 3,459.65 rear wheel HP.

 

[4speed390]

Well in that case, it is most likely a Pro-Line BB or a Moran Hemi. Those engines have been 5.50's in the quarter, of course we are talking all Billet pieces though.

 

[Boosted Bullet]

Nobody's running gas in any turbo or supercharged Pro Mod combo though, so would have to be a large nitrous combo.

 

[BBF612]

 

[mufflerguy]

Mike Moran

 

[cobra13]

I’m betting one of those speed race airplanes.

 

[matty169]

I'd bet a Goodwin billet on turbos or supercharger and injected.
Used in boats and truck pulling.
I believe 1600ish hp on pump gas N/A

 

[Lugbolt]

I would say the Briggs vanguard twin cyl pretty stout.

I don't know. Some of the Kohler's will give it a run for their money!

 

[turbofab]

Way back in 1985 we were making 5,000 PLUS with 115/145 AV gas, supercharged, 1000+ single shot, 50/50 water methanol. Used a 8 oz cup of octane booster to 65 gallons. And if there was a big crowd onlooking, the crew chief would pour a can of Budweiser in the ADI tank (Ani Detonation Injection, aka water/meth.). This was using stock crank/rods, modified stock pistons, and even stock camshafts, single overhead cams with 4 valves per cylinder. Approx 6.5:1 compression ratio and a HUGE PR-100 Pressure Carburetor, too.
Ok, we cheated......2,240 cid sure helps. But loading and unloading the prop at 4,200Rpm is BRUTAL!! We safety wired the main caps with .040" wire and 80% were broken at tear down. (Less than 45 minutes at power, if I remember correctly).
The 15.5" three blade 15-5 forged stainless prop spun at 15,000+ rpm and cost $10k each back then. The bearings in the prop strut were phenolic and was lubed with WATER😵‍💫. The shaft was 2.5" K-monel.

 

[BBF612]

Why was the shaft K-500 monel, corrosion resistance due to water cooling?

 

[BBF612]

Rare LS-7 Crate Engine Finally Fired Up After Sitting in a GM Crate for 44 Years

A N.O.S. LS-7 454 big-block Chevy from 1979 runs for the first time at Westech Performance—read what happens!

www.motortrend.com

 

[Warp Speed]

To the original post, I think the question should be what is the most powerful 4.84 bore space BBC on gas?
Justin's has to be close to the top of the list.
Hopefully the new version is a little better! 😉