The dyno data. I say 11s in Denver, we will find out...............Ready to race.motormonkey wrote: ↑Sat May 22, 2021 2:52 pm That q jet intake works well to 5000 rpm and even better with plenum mods. Porting the heads, if you get in the 300s plus in flow that baby cam I think will get you in the mid 400s hp range I'd think. So maybe 11s in the quarter?
What Happens When..............
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Re: What Happens When..............
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Re: What Happens When..............
I like it. You put together a nice build.
What did the heads flow if you don't mind sharing.
What did the heads flow if you don't mind sharing.
Re: What Happens When..............
Thanks, head flow @ 28 inches 4.350 bore SF 600 820 castingmotormonkey wrote: ↑Sat May 22, 2021 10:45 pm I like it. You put together a nice build.
What did the heads flow if you don't mind sharing.
.200 159 Ok
.300 224 Weak
.400 272. Weak
.460 292 ?
.500 306 Good
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I ran 2 different carbs
1. Harold Bettes carb for my Buick stocker
2. New Harold Bettes carb for my Buick stocker
3. Vintage Muscle Car carb for my Buick stocker
Carb 1 and 3 ran about the same on the dyno, although carb 1 is definitely proven at the track. Both carbs flow in the 890 CFM range. My Buick ran 11.60 in Denver in a 23.78 baro @ 3650, I pulled the worn out engine out and put it on the dyno, it made 512 HP corrected and 372 HP observed uncorrected, right after this race in Denver which I qualified # 5 in the stock/super stock combo. My 427 above made in the 360s for observed HP, My Chevelle is a better car than my Buick, I think it will run 11.70s in Denver.
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Re: What Happens When..............
Love this build, made even more steam than I was expecting. Looks stock but rocks! Nice job.
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Re: What Happens When..............
Thanks-your even going to like the drag test better.................
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Re: What Happens When..............
This project reminds me of one I did in the mid-late 80's. 1965 Impala ss 300hp 327. Full rebuild on a budget, one step warmer cam and fully ported fuelies. Completely different attitude. Good times.
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Re: What Happens When..............
I understand the intent of this test; but I have to wonder what kind of performance you could get with a modern lobe or possibly hydraulic roller with smooth idle characteristics. I like nothing better than a stock looking engine that can clean clocks.
Re: What Happens When..............
This is where the rubber meets the road, smooth idle 427 track test Saturday.............
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Beautiful '68
Curious what all you did to the suspension too.
Curious what all you did to the suspension too.
Heat is energy, energy is horsepower...but you gotta control the heat.
-Carl
-Carl
Re: What Happens When..............
Wonder what it would do with a stock eliminator cam, maybe 580 HP?
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Re: What Happens When..............
That stock eliminator cam would be a great question as well. I was just thinking street sleeper with my original question/comment.
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Re: What Happens When..............
Mark, what are you running for a fuel system? do you use that cool can?
Pro question poster.
Re: What Happens When..............
Warm fuei, cold air... nuff said
Heat is energy, energy is horsepower...but you gotta control the heat.
-Carl
-Carl