lstvr

How much RWHP do you think it might pick up from my lightly ported LS2 intake to a fully ported Fast with a 90mm NW TB i have already? If i'm right the bigger motor should like it?

dkrowner

iTrader: (6)

yes it will.i'm guessing around 30hp,i gained 48hp but i'm boosted

lstvr

I'm picking it up next week, i'll post the results and we will see what $800 nets, along with the 244/257cam and injectors!

Joe G

Here's what I picked up last week, albeit with a much smaller engine and stock heads, going from a LS2 portworks ported LS2 to a ported FAST 92.

lstvr

Nice! Just got back from Vegas, via Grand Canyon,Pheonix, San Diego, and LA! Got busted for speeding on the straightest road i have ever seen across Arizona desert. He was hiding behind a bush, the sod! Chevy Impalas are a horrid car by the way, But when he asked why i was going so fast i replied "i'm just not used to these big American cars", got away with one of those green warning forms. Anyway will post my results as soon as i've swapped my manifold. I will then do cam and injectors after so i can see what gives what.

The Dragon

iTrader: (6)

I'd say a good 30 on your big cube set-up as long as the intake is properly port-matched to your heads. Definitely let us know the results

SlwSVT

You will pick up very strong in the bottom and mid range. Probably 40hp and like torque. The peak numbers might not be as great, because on a bigger motor the FAST will not be able to keep up. The FAST should peak about 5800 and then start to decline rapidly.

LSWONGTO

iTrader: (3)

You should notice a real big difference in the SOTP dyno!! And you throttle response will be much sharper with the Fast to. Let us know how it does.