427 SBF

Patriot Racer said:
Maybe just word vomiting, but the first thing that popped in my head when I read that was, it’s just an air pump. Meaning I think it will react the same.

I also learned not to get caught up in the dyno numbers. We used to call it the heartbreak machine. The acceleration from A to B is going to be ridiculous if it can keep traction.
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I'm working on the dyno heartbreak now so when the day comes I can say.. Yea that's what I expected
 
Mike Beck said:
I say about 525 to 550 on the dyno. With those flow #'s, that compression and intake. If you do better than that be glad.
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I will fucking kill someone if that's the case. There will be parts jammed up someone's ass
 
Mike Beck said:
I say about 525 to 550 on the dyno. With those flow #'s, that compression and intake. If you do better than that be glad.
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What about tq though? Probably the same or better? I gained 150hp over my 358c with the 408c, but the 110 ft/lbs is what I "felt" on the street.

Hey, just to check yer calculator do my old 408. Flow was 341, 12.8 :1, 636 lift, 268/276 dur
 
BOSS#1540 said:
What about tq though? Probably the same or better? I gained 150hp over my 358c with the 408c, but the 110 ft/lbs is what I "felt" on the street.

Hey, just to check yer calculator do my old 408. Flow was 341, 12.8 :1, 636 lift, 268/276 dur
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With the proper intake and exhaust I would say it could have made a solid 600 to 625. What did it make, or what did it run and at what weight?

Our slow car, my wives race car, is a (was a) 11.5:1 406 SBC, stock AFR210's, smallish cam, .550 lift 240ish duration, decent intake, single plane but a stock Edelbrock intake for EFI, decent exhaust, best of 10.5 @ 128 @ 3400lbs on Sunoco Super Unleaded. It is apart now and will be a lot better, just to slow it down for 11.50 Index Racing! :)
 
89 Fox 427 said:
I will fucking kill someone if that's the case. There will be parts jammed up someone's ass
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Hey, I am not trying to deter you from what you are doing. Just get it together and see what it does. My wifey's car makes 575ish according to the Wallace Racing Calculator, and I find that thing to be pretty close.

Making 600hp (crank) with a pump gas (super unleaded) smallish engine, like you are doing, is not an easy task.
You can make power many ways, really good heads, good compression, LARGE engine size, LOT'S of rpm, etc..........
And I am not talking about power-adders.........
Put two of the above together and it becomes much easier.

My car is 200 pounds lighter than my wives. Same cars. I have a 415 or so, hers a 406.
I have much better heads, much better intake, way more compression.
I go 9.5 @ 146, she can go 10.5 @ 128.
We slow them down for 10.00 and 11.50 Index Racing.
Mine runs on Sunoco Blue, hers was Super Unleaded. Though too much timing was a bad move on my part for her.
So she will be getting more compression, I am porting the intake and cleaning-up the heads. I don't plan on doing anything else, same cam at this time. She still wants to 11.50 race, no reason to make any more power at this point.
But she will now run on Sunoco Blue like mine. Makes things easier at the track, but more expensive.
 
Mike Beck said:
Hey, I am not trying to deter you from what you are doing. Just get it together and see what it does. My wifey's car makes 575ish according to the Wallace Racing Calculator, and I find that thing to be pretty close.

Making 600hp (crank) with a pump gas (super unleaded) smallish engine, like you are doing, is not an easy task.
You can make power many ways, really good heads, good compression, LARGE engine size, LOT'S of rpm, etc..........
And I am not talking about power-adders.........
Put two of the above together and it becomes much easier.
Click to expand...

That's odd. I was told 1.52hp/ci is easy. It's the reason I bought what I bought
 
Mike Beck said:
With the proper intake and exhaust I would say it could have made a solid 600 to 625. What did it make, or what did it run and at what weight?

Our slow car, my wives race car, is a (was a) 11.5:1 406 SBC, stock AFR210's, smallish cam, .550 lift 240ish duration, decent intake, single plane but a stock Edelbrock intake for EFI, decent exhaust, best of 10.5 @ 128 @ 3400lbs on Sunoco Super Unleaded. It is apart now and will be a lot better, just to slow it down for 11.50 Index Racing! :)
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Good guess, you already knew, lol. 🤔
1-3/4" headers to fit foxbody. 3300lbs with me. Ran 11.7 at 125.4 mph, lol. I was leaving at an idle to not bust shit.
It dynoed 583hp, 503ft/lbs but i had a better intake and oil pan on it at the track.
I was happy after dyno. Very happy with it on the street. Buddy that helps me now says something wrong with that dog 🤣🤷‍♂️.
Lots to be said about having the right combo.
 
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