Trying to decide whether to get Crawford Plenaum of Motordyne Plenum 1/2" spacer. Any opinions on the two?

 

I'm going with the MD 5/16" spacer & MREV 2. Dont really care for the crawford. (imo)

 

Search, read, learn...

For a more accurate and realistic idea of the gains of plenums vs. spacers, see the article in Winter '05/'06 issue (#21) of Sport Z magazine, and also see:

http://www.motordyneengineering.com/...tAnalysis1.gif
and
http://www.motordyneengineering.com/dynos.asp

Personally, I went with the APS plenum,
https://g35driver.com/forums/engine-drivetrain-forced-induction/127100-aps-plenum-install-pics.html
but I think the Crawford is at least every bit as good.

 

prefer the motordyne, you dont need to replace the entire plenum.

 

http://www.350zforums.com/showthread.php?t=67

 

Holy old thread batman!