i would love to try an 8.1. prety sure they sell heads and cam for them and then put the boost to it and see what it does. it would cost more than a 6.0 and be harder to fit under the hood with a turbo.

i have always been big on the old saying "no replacement for displacement" but i really dont know anymore. when playing with boost i think the motor with the strongest block and ability to keep the heads down will win. will the 8.1 block hold the crank in at 1500+hp? i bet it would.

 

that 408 at 30psi would be more like 1224ci.

i agree a heads and cam bigblock wound not have a chance against a turbo 408 but what about a turbo bigblock vs a turbo 408?

 

edit: must stop sniffing glue -- Jim's right.

A turbo 8.1 vs. a turbo 408 with all else being equal? Bet that 8.1 wins, but either way, I wanna see the race

 

This is what a blower does on my buddies 554ci.


http://www.fatalfoo.com/Movies/Rock's%208.28@178.8.wmv

 

dodge is making srt 10 why cant we?

 

your not looking at those number corectly, kind of hard to explain.

figure basic atmosphere is 14.7psi, if you add 14.7psi it is like doubling the displacment. by going to 29.4psi it will be like tripleing the displacement.

 

Chevy did back in the early 90s, it was called the 454SSS. Great idea, poor execution. LOL

 

At what point does the more cubes is better end?? Is it when it reaches assinine amounts of money to make the power?? Or is it when you cant get from stoplight to stoplight without getting gas??? Would a bigblock with the same poweradders produce more power than a comparably setup small block?? Probably. Its been years and no one has done it (that Ive heard or seen). F8L's truck hauls *** and he has shared an invaluable amount of info with us guys that have more than just bench racing credentials. Build it and then share noob, until then dont get in a pissing match with what you think. Damn, so youre 46 and you can bench race with the best of them. You are a verified bad ***. Keep the little boy talk at home. Im sure there are people here that would hand your loud *** to you without blinking a lash.

 

yeah i know but ,one with new tech would be awesome, i heard if the demand for a truck like that grows they will build one. can we start a petition?

 

Well, I've always heard the old "for each atmosphere you double the cubes" rule of thumb, but as Jim points out, that addage is wrong (because of Boyles Law -- pressure and volume are inversely related).

What Jim showed here for the math is correct. Cubes don't double for each atmosphere, the increase proportionally.

(You can work it out with v1 = (p2v2)/p1 and setting p1 = 1, p2 = whatever atmosphere you want to run, v2 to the cylinder size of your motor and solving for v1. It will be p2 times larger).