76mm and 408ci too small?
76mm and 408ci too small? just wondering what your opinions are with a 76mm on a 408 are...too small or what?
car will just be a street driven weekend car... not looking to be competing up there with the big boys but a nice 850-900hp mark or so... just wondering cause I'm starting to piece my 408 together faster than expected and am almost to the point of being able to drop it in as a long block to start on the Piping and such...
car will just be a street driven weekend car... not looking to be competing up there with the big boys but a nice 850-900hp mark or so... just wondering cause I'm starting to piece my 408 together faster than expected and am almost to the point of being able to drop it in as a long block to start on the Piping and such...
On The Tree
Joined: Jan 2012
Posts: 131
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From: sydney australia
850/900 at the wheels or motor!!!i,ve ran for years a standard bw s475 t6 1.32ar 96 mm turbine on my 408 iron and it,s great runs 9.7s @144 @4000pd stepping up to an 88mm now with heads, intake etc only because i,m chasing better times!!!obviously if the 76 has a small turbine t4 then it will choke but if not all good!!!! if numbers are at the wheels you would be better off with something 80/88/91 as already suggested!!!! anyway cheers
The Gangster 476R would have a heck of a time feeding a 408 even. On Matt's 370ci motor its putting out around ~1060rwhp and boost around 19psi-20psi. Good flowing 408 would be tough to keep 15-16psi.
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well I' at the point were I can finish building a 408, go with a set of twin 76's or knock it or make it a 370... or just get a bigger single...like a S400SX-75???
Last edited by GreatWhiteZ28; Jul 17, 2012 at 06:09 PM.
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Verdad Gallardo also forgot to ask if I'd be able to keep a T4 flange with the larger 80mm+ unit? I've read a lot of the info on Forced Inductions site but still trying to make sense of most of it
We have the unit on a 370ci motor, making 989rwhp at 19psi. Spools WAY faster then the 88mm unit it was replacing and makes almost identical #'s at the same boost level, but mid-range and low end are up as much as 175rwtq.
