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Here is a picture of the best plenum ever made for the rb20det.

RB20DET%20-1.jpg

It will handle more power than you will likely make on an RB20det.

Not sure if your friend can copy it or not though.. It’s taken the guy who made that one in the picture a LOOOOOOOOOOOOONNGGGGGGGG time to design and test and so forth.

Good luck

Hi

i was just wondering if anyone has a design plans for a custom plenum for an RB20 as one of my m8s who is an engineer said he would fabricate one for me if i could get the designs.

thanks in advance!

- Greg

If your friend is an engineer i would thnk that he ay have a few ideas of how one should/could work.

I dont doubt the std equipment could be improved on...but needless to say you can also get worse results then std, and for the average punter it oculd prove expensive tryign to find a solution that may only make marginal improvements

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