monteboy954

I am trying to swap our crap manifold for a FAST 92mm manifold and i just need some help on how to make this work i also have my 90mm LS2 drive by wire TB all i need now is fuel rails and probably new injectors unless you guys think other wise i also have the valley cover and opsu relocater off katech and the TB adapter harness when do you need to change to bigger injectors i am going to do H/C/I but im doing the intake first would that alone require bigger injectors and will those performance products fuel rails work for this I know in the long run with the cam and new heads it will require bigger injectors im looking to get 400 whp N/A which HP sales of south florida said it is definitly possible with the right H/C/I setup they specialize in LS based motor and if you guys can think of any other parts i would need would be greatly appreciated

Sittingmongoose

iTrader: (1)

That is going to be a mighty hard fit. The fast intakes are larger to begin with. Than on top of that your going to a 92mm neck. I am sorry but the way i did it would be able to work. Maybe someone else has some ideas but i believe there was a clearance issue with the ls2 that would be amplified by the fast. Good luck, it will sound nasty if it works

nmp0098

Check out this thread:

https://ls1tech.com/forums/ls4-front...questions.html

You can reuse the stock fuel injectors if you aren't going to exceed their flow limits and if you modify the fuel rail mounting tabs on an aftermaket rail. I could be wrong, but I doubt the stock fuel rail will clear the LSx manifold with just bending like I did.