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Dumb Custom Plenum Question.

Dump_Pipe

By Dump_Pipe,
in Engines & Forced Induction

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Dump_Pipe Enthusiast

Dump_Pipe

Posted
Posted

PPl,

I've have to replace my plenum on my RB 25/30 (turbo) combo, as the last owner made his own dodgy home made plenum.

My actual question is that when you purchase say a Greddy/Trust plenum or even a custom one from say Micks Metalcraft as an example do these actually bolt straight to the side of the head or do they just bolt to runners? The one I have at the moment is welded to standard runners.

If it is only plenum how much am I looking at to get runners and anything else that is necessary for the transition?

Also I am looking the Greddy one, but I have an XF throttle body, can it be adapted with out much hassle as I don't want to change it as it had the TPS set up on it.

Hope this makes sense and I appreciate all coments.

DP

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NFAA32 Rising Star

NFAA32

Posted
Posted

a friend of myn has done some research into it, and came up with use the stock runners with a front facing plenum works best rather then either bolting plenum to head or new runners... there are many companies who build plenums over here

mood motorsport is prolly the best one i have seen...

butmost workshops will either make one, or know who can..

Steve Grand Master

Steve

Posted
Posted

trust plenum bolts directly to the head and if new comes with bolts and clamps, hoses needed to fit everything to it (no gasket though) - you will need to mod the water line for your turbo though.

the runners on the trust plenum are larger in diameter and shorter than the stock runners. You can get an adaptor for the stock TB additional to the plenum, or source a Q45 TB (larger than XF) which will bolt straight up (TPS is compatible, being a nissan). I dont think the Japs are big on ford XF throttle bodies, so if you wanted to fit it, you may have to get a custom adaptor made.

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