Thread: Center Fed manifold

Jesh, I need to get on the forums more. When did excessive start making center feed plenums lol...


updates! ??????

Theyve had them for a looong time, just everyone's been using them on the k series.

I tuned the car on Saturday We still not sure what were the problem with the motor but I suspect that one of the issues its that the motor its knock limited with his new combination and also I thing the new angle of the TB on the plenum and the radical bends on the intake piping were hurting the air flow @ high rpm since the motor was making 165ft/lb @ 5500 but the motor didnt wanted to make more power after 7600 just a straight line to 8600 so there its a restriction on the intake side!!

yes that's true what cuold it be

Would have been nice to just try a straight intake on the dyno to see.

im.putting It up for sale or im going to try it with normal vvl runners

Mercado did you do any further testing with this?

I thought the rise in torque was really promising. As others mentioned, a less turbulent and straighter intake path might be a solution to the higher rpm power loss.

I have this plenum also, and will be testing on regular SR20VE runners with a bottom mounted Q45 throttle body in the new year.

This will do much better.

That's good to know. Is that what you tested on the nitrous car? Any dyno sheets available?

Interesting coolant pipe routing on this car. Can anybody shed any light on the radiator position?

I love the idea of a centre feed inlet, but still want to be able to get rid of the hot air from the rad through a bonnet vent.