Well the time has come to where the truck will be going into storage. As some members may know it's been an ongoing battle with my truck, I've reached and succeed my all motor goals and now it's time for boost. I've got a tfs headed 4.8 with the works and will be going with an f1 on 12-14lbs. Long story short I'm torn between which intake manifold will be best for my setup. I have the tbss as of now but I know many have been using the holley hi ram/mid ram and I've also seen others use the fast 102

My dilemma is spending the 800 + on a hi/mid ram setup when I get the fast intake manifolds for 5% above cost and can run the l92 fuel rail. Either way I'd like to hear some members opinions on which intake manifold would be ideal

Thanks in advance

T.J.

 

put a victor on it

 

Really think a Victor with my displacement? I figured the holleu rams or 102 would be a better suit for the truck

 

I'm a fan of the lsxrt for n/a builds minus there price tag, it seems to retain the most lowend compared to other after market brands.(for 4.8/5.3). I don't have a clue how strong/durable it would be under boost or how much it could handle.

 

If your just going to run 12-14lbs why run an F1? Its gonna take some power to turn the f1. What are the goals of this setup?

 

The only reason I'm leaning more towards the fast is because of how cheap I can get it...and for whatever reason if I decide to say screw boost and go to a max effort na build it seems to be the best route. As for the f1 I saw a member on here with stock cam make some 640 wheel on stock cam on 15lbs and the other fact when this motor finally let's loose it'll probably be perfect on the 408/414 I'd like to build for it. I'd rather spend money once rather than twice

 

As for goals at this point I'm looking for high 11s low 12s, my pb on the 35s was 13.8@94 and it's by no means enough lol.

 

Guess we'll see how the fast works with boost with works deal I couldn't pass it up. Also I've heard that not only the l92 fuel rail works but the tbss does as well?

 

A member on here just dynoe'd today with a cam fast LSXRT and a procharger. I will let him chime in if he wants to share his dyno sheet. He ran out of injector though. It would have been much better. I believe he is pretty happy.

 

So, after a long battle with getting the idle down, leaks etc. I dyno today at Cunningham motorsports and laid out 420rwhp but ran out of injector at 4800 rpm. max injector duty cycle was 114 haha. Soo, is the FAST worth the $$$$ I have no idea ill probably pull mine but for now the truck runs great..