I want this plenum... anyone know who made it?

[familyMAN]

You measure from back of intake valve so it's more like 7" but yes, tuned for pretty high rpm. Around 11-13" runner would be perfect for me but I haven't figured out how to do that and still fit under hood.

Most cars have the same limitations though. It's either too long or too short for packaging purposes. Same for supra's, DSMs and evo's.

[NOMIEZVR4]

wow that thing looks nice ! wonder if it was diy?? doesnt seem like it...

[familyMAN]

It was DIY. Search for mechanicalshutdown on 3si. In Australia forum I believe.

Actually looks a lot easier to make than zesty

[NOMIEZVR4]

they did a clean as hell job making it...looks professionally made.

[lawdogg]

I designed (and halfway prototyped lol) a transition from the bottom of an N/A manifold to a smooth velocity-ish transition into a plenum if anyone wants the cad file ...

[mehrshadvr4]

Got a little update from GCtech. Here is my intake manifold with xg350 runners.

[fastfalcon94]

Got a little update from GCtech. Here is my intake manifold with xg350 runners.

That looks very nice. How do the xg350 runners compare to the non turbo 3s plenum runners? How is gctech invovled in this? Are they building your engine or something? Do you know what the turn around time was from XM?

[NOMIEZVR4]

xg runners are fatter but taller and also 1" longer.

What did gctech do? The tanks looks like its an XM unit, you had the runners already...did he just weld it together?

[CoopKill]

And, what TB is that?

[mehrshadvr4]

He's building my turbo kit. The TB is 90mm velocity element and my intake manifold took a month to make even though they didn't do everything I told them to do.