V8er

iTrader: (2)

I am wondering what gains I can expect by going to the FAST 90mm intake manifold and TB on my car. I know this has been discussed before but each case is different. Here is what I have. Stock bottom end, AFR205s (62cc), AFR 224/228, LS6 manifold, stock TB, and headers.

If I could get another 20rwhp from the FAST parts I'd go for it but it is too much cash for only 10rwhp!

Also, I've seen talk of people using the FAST 90mm intake with the LS2 (90mm?) TB. Does this work? Is the LS2 TB better than the FAST?

Phil99vette

iTrader: (11)

I just added both and let me tell you it woke my car up. You can definitely tell a difference on my car. I would go for it.
Phil

Racehead

I would guess 10-15 rwhp. It could be much more and I've heard of less. Seems to be kind of a hard one to nail down. I say go ahead and spend the money .... it's not mine

smokin' joe 00 ss

Go with the 90mm setup and I would go with the 90mm TPIS TB it's great quality and they have great customer service. I gained 27rwhp & 13rwtq over my LS6 intake and ported TB, and that was on a Mustang Dyno and my cam is a B1 221/221 my heads are the absolute Speed LS1 stage 2.

beardWS6

iTrader: (1)

Go for it. I love mine!

pdd

iTrader: (3)

id also have the 90mm TB and fast intake. id do it all over again too. i say get it

2MuchRiceMakesMeSick

I love mine too

V8er

iTrader: (2)

That is an amazing power gain from just the 90mm FAST parts. Have others seen such impressive gains or was this just a lucky combo? I would buy them in a second if I knew I was going to get an additional 25rwhp

NO5.0

iTrader: (1)

Have you had your setup dynoed yet? Isnt tha the setup Tony at AFR has on his corvette. If it is ask him the results because he has the fast setup with the 90mm. Anyways can you give me more info on your setup? dyno? rockers? bolt ons? cma specs? Thanks