Daredevil_TA

iTrader: (6)

I have sort of a mild heads and cam combo with a ported LS6 intake an Shaner S3 TB, and I see some of these guys on here getting really good gains with the Fast 90/90 combo but alot of them have some pretty healthy H/C setups-I have a measley LPE GT2-3 (207/220 .578 .588 118.5 ICL) and Tsp stg 1 ls6 heads-do you guys think i'd benefit that much over my ported LS6 and Shaner TB? thanx in advance

Z28/2002

iTrader: (27)

I would stay with what you have

99FormulaM6

iTrader: (21)

yea, save the dough for suspension or a rear end..

skyhighsami

iTrader: (8)

At what point should you really consider getting a FAST over the LS6

shdybrady1988

iTrader: (3)

I have heard around the 480-500 mark

skyhighsami

iTrader: (8)

whp or crank

Daredevil_TA

iTrader: (6)

thanx for all the insight guys, i appreciate it

njc.corp

i would say crank- 480-500 rwhp would be pushing it in n/a with a ls6-

dont think i have ever seen a 480-500 na rwhp 5.7 with a ls6

i could be wrong-

anyone seen that>>>???

99zman

iTrader: (23)

i would like more info also, mods in sig i made 392 before the 12 bolt, I want to get some more from it but afr's are a far way off, so ill be on the stock heads, i have the ls6 intake and shaner ported tb also already on the car. would it be worth it, i was thinking about a vengance ported set up?

JonCR96Z

iTrader: (33)

In my research of this issue, I found that any car making at least 400 rwhp will make 20 more rwhp when switching to a FAST90. There may be better things to spend you money on, but thats your call.

And for the record my LS6 CTSV made 372rwhp/363rwtq. With just a FAST 90 (unported), electric water pump, stock air box w/ K&N filter and Magnaflow catback.