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1970cuda
02-19-2006, 05:41 PM
i know that this has been covered. what size turbos(twins) would be recommended for a ls1 fuel injected that is about 400ci? looking for about 1000hp......suggestions welcome

gen3bu
02-20-2006, 05:35 PM
t4 60-1 upto t70. all depends on cam, heads, rpm, and boost.

Y-TRY
02-20-2006, 06:03 PM
Several of us making that power and more with Precision PT-52's. I chose them because they are relatively small and great quality.

ProStreet R/T
02-21-2006, 01:03 AM
If you want a somewhat specific answer gonna need a LOT more details than that.

Heads? Cam? 408, 427, 436? want a 8500 rpm screamer or keep it somewhat tame? auto or manual trans? what standalone efi are you using?

making 1k rw on pump gas will be interesting, and I almost have to ask why for a street car? that is a TON of power. 750 and it will be a much more reliable car, so much more enjoyable to drive, and will still make you piss your pants when it spins the tires at 90mph.

DeltaT
02-21-2006, 01:45 PM
Huge amount of info and experience on this question at ls1tech.com, in their 'forced induction' forum.

Jim