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

Incorrect install or time for a tune?....

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  #16  
Old 05-13-2010 | 02:15 PM
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btw Jeff (OP), if you want to ditch the copper throttle body spacer, you can have the coolant bypass the throttle body entirely. it doesn't get cold enough up here to worry about it really. just get a male - male hose connector from home depot (or wherever) and join the hoses together.
 
  #17  
Old 05-13-2010 | 02:24 PM
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Originally Posted by G35papa
It looks like you didn't replace the two guide pins on each side of the plenum. Might want to take those out (I think you can use 4mm socket) and replace with some m6 bolts. Check the lines for cracks as well. I had to replace one of mine not to long ago due to it cracking.

I'm off work tomorrow Jeff and can take a look in the morning or if you want to swing by tonight too.
It looks like the two small nuts are missing on the left and right side (not sure if these are the guide pins Chris is referring to, but that sounds like a leak)
I'm referring to the small gold nuts sticking out (1 near the oil filler cap and the other on the left side near a vacuum hose)
 
  #18  
Old 05-13-2010 | 02:39 PM
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^ those are the M6 nuts
 
  #19  
Old 05-13-2010 | 02:49 PM
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deezzzz nuts
 
  #20  
Old 05-13-2010 | 03:20 PM
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"ah, shut up n***a"
 
  #21  
Old 05-13-2010 | 04:22 PM
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Thanks for the imput guys.

I just got back from Home Depot and they dont have any M6 nuts / bolts (go figure)

But I found out that I can remove them with a standard 4mm socket (thanks pappa). Can I just remove the gold guid pins and replace with regular hex bolts? or is that not an option?
 
  #22  
Old 05-13-2010 | 04:56 PM
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I'm pretty sure I have a bunch of those bolts lying around Jeff. Yes, you can replace them with m6 x 1.00 bolts. Without a spacer, I think they need to be 35mm long? I'll have to check that when I get home but I think bigc knows off the top of his head
 

Last edited by G35Papa; 05-13-2010 at 05:10 PM.
  #23  
Old 05-13-2010 | 10:39 PM
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^ IIRC, the oem bolts around that part of the plenum are 25mm long.
 
  #24  
Old 05-13-2010 | 10:46 PM
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Cool thanx ^
 
  #25  
Old 05-14-2010 | 12:05 AM
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Thanks Chris. I got duct tape too if all else fails
 
  #26  
Old 05-14-2010 | 12:15 AM
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See u tomorrow morning chris papa's garage makes everything better
 
  #27  
Old 05-14-2010 | 04:09 PM
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Thanks Chris (G35Papa) for helping me diagnose the source of my leak this morning!!!! Couldn't have done it without you man. Thanks!

For those of you interrested, the problem was inside the mrev2. the stock plenum has 6 screws that bolt down into the lower plenum, where the crawford only has 2. I didnt know the holes actually go all the way through the Mrev2 therefore causing 4 of the holes to allow open air to seap in. we plugged them up with bolts and now it works perfectly. see pics







as you can see, the outer 4 holes on the lower plenum dont get used by the crawford. my own ignorance for not reading the instructions and thinking it was something much more complicated. just plugged up the holes and bolted it down.

also found that the reason for the missing bolt not goin into the crawford was due to the thread stripping inside the lower middle Mrev hole . but it is still airtight and runs fine.


Thanks again Pappa for taking time out of your morning to help me!!!!


she runs smooth now and sounds great at WOT!!!
 
  #28  
Old 05-14-2010 | 04:43 PM
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No problem Jeff. Glad we were able to figure it out. Time to enjoy it now
 
  #29  
Old 05-14-2010 | 04:57 PM
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I could see this mistake coming from a 5/16" install. Glad you guys got it fixed. Welcome to the Crawford V5 crew. Notice any differences vs teh spacer?
 
  #30  
Old 05-14-2010 | 07:06 PM
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Originally Posted by Jeff92se
I could see this mistake coming from a 5/16" install. Glad you guys got it fixed. Welcome to the Crawford V5 crew. Notice any differences vs teh spacer?
Thanks. It's for sure louder. At WOT the redline shifts seem to take in a larger gasp of air before the needle levels out too

Now all I gotta do is Dyno Tune it and put all those respritory mods to their full potential.
 
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