Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Skunk2 or Motordyne???? which Spacer to get?

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  #16  
Old 06-16-2008 | 12:52 AM
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From: Burtonsville, MD
have you looked into the powerlab one?
 
  #17  
Old 06-17-2008 | 12:45 PM
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Originally Posted by UR2EZ
From the info i looked at, it looks like the 5/16" spacer will give more acceleration off the start, but the 1/2" will give more power when already moving........ i will go with the 5/16" because i don't plan to rev my engine up past 4000rpm's and that's where the 1/2" power really starts... i want more power in the 2000-3000 rpm range
You don't plan on revving past 4000 RPM? Then why do you care about power .

Besides being $50 cheaper, the Skunk2 is made of Nylon, which is a better thermal insulator than aluminum. Since I didn't care about the engine cover fitting (just extra weight, right?) I went with the Skunk2. I also bought a second gasket to use instead of silicone, so that offset the cost difference a bit. Installation was a piece of cake, no problems at all.
 
  #18  
Old 06-18-2008 | 04:43 PM
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As far as heat goes, it's going to get hot in the engine. The spacer will do little to "heat" the air in the chamber compared to the upper and lower collectors. Of the two you said I would go with Motordyne.

Have you looked into the PowerLabs 3/8" spacer? I bought that and the MREV2 and it's a great combo.
 
  #19  
Old 06-19-2008 | 12:57 PM
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Originally Posted by twin001
As far as heat goes, it's going to get hot in the engine. The spacer will do little to "heat" the air in the chamber compared to the upper and lower collectors. Of the two you said I would go with Motordyne.

Have you looked into the PowerLabs 3/8" spacer? I bought that and the MREV2 and it's a great combo.
I wasn't suggesting that the spacer itself would heat the air in the plenum significantly. was referring to the spacer being an insulator between the upper and lower plenum halves, thereby reducing heat conduction into the upper plenum (which, like you said, can heat the air significantly). Same principle (different location) as the "iso-thermal" kit from motordyne, which places and insulating gasket between the intake manifold and lower plenum to reduce heat transfer to the plenum.
 
  #20  
Old 06-19-2008 | 04:55 PM
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+1 Motordyne. Both spacers probably are equivilant in terms of performance, but if you have issues, Tony (from Motordyne) is easy to get a hold of to answer questions, and he's active on the forms here as well!


Originally Posted by GF-4D-G35
MotorDyne FTW!

I have no idea what the difference is but the consensus on this forum is that MotorDyne is the way to go and there are a lot of people on here who are more informed than I am so I followed them.

The install is not hard but you need to be aware that it can be difficult to disconnect some of the coolant hoses and you HAVE to properly torque the bolts. I went ahead and picked up an inch/lbs torque wrench which added to the total cost of the project but it made me feel more comfortable with the install. Maybe you can rent one from a parts store instead of purchasing like I did.
 
  #21  
Old 06-24-2008 | 10:31 PM
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From: Maryland
Okay... I live in Maryland and it is a four season area. Which spacer kit do you guys recommend?
 
  #22  
Old 06-24-2008 | 10:37 PM
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Originally Posted by seung012
Okay... I live in Maryland and it is a four season area. Which spacer kit do you guys recommend?
since you're so far up north, i bet you get snow and ice on the car alot... i'd go with the copper iso thermal ( i think it is... )

idk, just read on the motordyne site, they tell you what each kit is spec. for
 
  #23  
Old 06-24-2008 | 10:55 PM
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Originally Posted by UR2EZ
since you're so far up north, i bet you get snow and ice on the car alot... i'd go with the copper iso thermal ( i think it is... )

idk, just read on the motordyne site, they tell you what each kit is spec. for
Yep the copper iso thermal spacer is for colder climates.
 
  #24  
Old 06-24-2008 | 10:57 PM
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From: Edmonton
Originally Posted by UR2EZ
. . .since you're so far up north. . .
LMAO. . .

but yeah. . .get the whole kit and caboodle. . .you will not regret it . . .
 
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