Quote: Originally Posted by CHRGD6 Haha yeah the factory exhaust manifolds make **** turbo manifolds Pretty sure Jake's Torana uses cast factory headers as exhaust manifolds and makes 1000hp at the wheels. Everyone puts **** on factory manifolds, but they're underappreciated. LS1s, Holden V8s, RB30ET - none of these cars have trouble performing using the factory exhaust manifolds. haha but the custom ones look better, and cost more so they MUST be better Some original photos have not been recovered yet.

heres a gen 3 i turboed last year owner has just upgraded to a 6ltr l76, with only head studs, comectic gaskets, cam and springs, otherwise std crate motor, just spun up 603RWKW @14psi and 520rwkw on 10psi made 464rwkw with ls1 motor and run 10.1 at 140mph Some original photos have not been recovered yet.

Now thats just silly... I want one now.

Jd thats some good info- do u know if the l76 engine lifts the heads off- from factory the deck thickness is not pretty-thats why i am asking- if not--is the owner thinking of turning up the boost Thanks Nick--

he has it out atm getting rebuilt to handle more boost, it was studded i dont think heads lifted??

Thanks for the reply back Thanks Nick--

what do u charge for a set up like that pm me if u like? Thanks Simon

Quote: Originally Posted by jdcustom heres a gen 3 i turboed last year owner has just upgraded to a 6ltr l76, with only head studs, comectic gaskets, cam and springs, otherwise std crate motor, just spun up 603RWKW @14psi and 520rwkw on 10psi made 464rwkw with ls1 motor and run 10.1 at 140mph Wow good figures.... Looks like 10psi and over 500 should be no drama at all for a 408... Sweeeeet Some original photos have not been recovered yet.