Help on deciding with Plenum & Spacer?

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Feb 9, 2008 | 03:55 PM

#16

citymunky

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From: Chesapeake, VA/The Bronx, NY

Quote:

Originally Posted by ckg35

I hadn't heard there was a plenum or spacer upgrade yet for the '07 G35/G37. Try Emailing Motordyne to see if they've been doing any testing to see if a spacer is actually going to produce gains.

There is no 2007 G37 coupe

Feb 9, 2008 | 05:45 PM

#17

Still2Slow

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From: Greensboro, NC

OEM polished plenum with either Motordyne 5/16" or 1/2".

Feb 10, 2008 | 06:10 PM

#18

ckg35

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Quote:

Originally Posted by citymunky

There is no 2007 G37 coupe

Thanks for being so pedantic!

I think most know that the G37 isn't a 2007 model, so I never bothered clarifying.

Feb 11, 2008 | 01:42 AM

#19

kbmoney

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From: Waco, Texas

ive purchase and install a motordyne 1/2" plenum spacer to my 2004 g35 and i wanted to if i was to use the 5/16" instead. What is better

Feb 11, 2008 | 02:52 AM

#20

Deepdiver

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From: So Cal

stick with the 5/16; you will have performance increases over a wider range of the power band.

Feb 11, 2008 | 03:25 AM

#21

JJJAAASSSOOONNN

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motordyne, no ifs ands or buts

Feb 11, 2008 | 05:27 PM

#22

AGThing1227

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From: Philadelphia

Quote:

Originally Posted by citymunky

Let me add to this.

If you have a 2005-07 6MT ("RevUp" Motor) then get the MREV2. If you have a 2005-07 Automatic, ill stick with the 5/16" spacer.

Also you the Cosworth is nice, but i would only get it if I was going F.I. (Turbo or Supercharger). The HP/TQ gains for N/A are similar to the 5/16" and
MREV2.

Yea, I heard the Cosworth are supposed to be pretty damn good with FI but the backorder SUCKS(so does the price but you can't complain)!

Feb 11, 2008 | 06:43 PM

#23

OCG35

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From: OC - So Cal

Quote:

Originally Posted by kbmoney

ive purchase and install a motordyne 1/2" plenum spacer to my 2004 g35 and i wanted to if i was to use the 5/16" instead. What is better

It’s absolutely not worth dumping the 1/2" and getting 5/16" - It is HIGHLY doubtful that you would feel the difference. Since you already have the 1/2" stick with it. I run 1/2" and have zero reason or need to get a 5/16" instead...