What's the best plenum for FI? I mean theres a couple of options, but I dont know which one will produce the most power or hold up the longest. Anyone care to share some experiences?

 

depends on how high your going to boost. I am running the plastic Kinetix V4 plenum on 9.5psi and its seems to be fine. I just made sure that I put the Motordyne iso thermal gaskets, and copper TB heater on before I installed it to help keep the temps down. Kinetix claims its safe at 10psi. So far I like it. It takes some getting used to though, as sounds your engine makes will be more noticable as you start to spool. It can be annoying in traffic...but I'm not looking for a luxury car...I want performance.

-Blaise

 

Kentix SSV

 

+1

 

APS or Crawford provide better airflow than most others....

 

SSV has majority proof that it flows less. I would wait for phunks new plenum or the SFR one.

 

I see that Phunk listed his new plenum on his site. I am guessing it will have good numbers.
http://www.cj-motorsports.com/produc...kemanifold.htm

 

I agree I picked up a lil bit more 25whp with the aps tall boy...The aps is really the only plenum right now designed for fi.....get it DO IT..

 

I picked up 25 whp with the Crawford plenum, and I believe the APS and the Carwford are almost identical so either one of those should be fine.

 

APS or Crawford. SSV if you're into looks though