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

Plenum Shootout test.

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  #46  
Old 11-12-2009, 06:58 AM
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That's part of the reason I don't my350.com everything is an argument over there.

The Canadian guys are cool though.
 
  #47  
Old 11-12-2009, 07:38 AM
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Yea, it was getting nasty over there.
 
  #48  
Old 11-12-2009, 08:46 PM
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Originally Posted by DRG35R
bought the MREV2 and Iso Thermal upgrade to combine with the Crawford I already have. once installed I will post the before and after dyno results based upon this addition. wait and see.
It will be interesting to see how your results compare with these.

http://my350z.com/forum/intake-exhau...5-touring.html

http://my350z.com/forum/intake-exhau...hp-engine.html
 
  #49  
Old 11-12-2009, 11:37 PM
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Tony,

For the first link and the dyno where it compares only the MREV2 with baseline, is this against a non-REVUP lower?

The results seems a little awkward

Baseline : 258.3/253.1
Spacer+Mrev2: 271.5/257.2
Mrev2: 272.3/260.5

Seems like the Spacer made the car lose power. Am i reading this wrong?
 

Last edited by gabe3d; 11-12-2009 at 11:45 PM.
  #50  
Old 11-13-2009, 12:37 AM
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Everything shown in that test is what happened on the non-revup engine. It was however lean at the time of the first set of linked tests. This may of had something to do with it.

And when you have a REVUP engine, doing both will make additional top end.
 
  #51  
Old 11-15-2009, 03:42 PM
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I can't wait to get my MREV, Spacer, and Shockwave.

Still got some time before I can afford it all, but I'll have the Shockwave in the next month or so....*STOKED*
 
  #52  
Old 11-15-2009, 04:27 PM
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wow, i didnt know that the mrev2 + spacers made less hp/tq on a non rev compared to just using the mrev2... is this bc the stock ecu wasnt able to adjust the a/f ratio correctly? So if it was tuned would the mrev2 + spacers make more vs the mrev2 on a non revup motor???
 
  #53  
Old 11-16-2009, 02:13 AM
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It may have been related to his car base lining in the lean condition. A/F ~14.

As shown in the thread discussions it did a lot better once properly tuned.

I do suggest reading the details in both links. He (Mike) tested it both ways.
 
  #54  
Old 12-04-2009, 01:43 PM
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+1 for Tony and his MD Products!

He's a great guy and willing to give each person the time needed to get all the info needed! I just talked to Tony today and he's an A+ guy.


In other news - what ever happened with the OP's results? Did he run the tests?
 
  #55  
Old 12-04-2009, 02:34 PM
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Thanks Morovasa!

Gabe's engine build is nearing completion.
http://my350z.com/forum/na-builds/45...argarge-5.html

Once that is done he will give it ~1K mi break in and then dyno.

There is also another independent dyno coming up soon too. Its being conducted by the Admin of MY350Z.COM.
Details will be posted shortly.
 
  #56  
Old 12-04-2009, 06:08 PM
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Like Tony said. The test will probably be done in 2 weeks or so.
 
  #57  
Old 12-05-2009, 12:58 AM
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How's that engine build of yours going??
 
  #58  
Old 12-05-2009, 01:12 PM
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It's finally about to get completed. The engine will be in the car no later then Wednesday and I should get the car in my possession the following day. That's for the break in until we can give it a full tune after 1000 miles. It's then that I will be able to make the plenum test.

It's been a long wait and I hope it's all worth it.
 
  #59  
Old 12-05-2009, 01:42 PM
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Originally Posted by gabe3d
Tony,

For the first link and the dyno where it compares only the MREV2 with baseline, is this against a non-REVUP lower?

The results seems a little awkward

Baseline : 258.3/253.1
Spacer+Mrev2: 271.5/257.2
Mrev2: 272.3/260.5

Seems like the Spacer made the car lose power. Am i reading this wrong?
With numbers that close, i don't believe you can conclusively say anything about the Spacer other than its similar to the Mrev2 without the spacer.

BTW, when you did these runs, how did you maintain your control group? Were they all on the same dyno, in the same conditions? If it was the same dyno (such as Dynojet), did you keep the car in place the entire time with the straps not removed?
 
  #60  
Old 12-05-2009, 01:55 PM
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It is not my car nor my test. However each setup were repeated multiple times so from a statiscal approach, there are some conclusions that can be made.
 


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