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Anyone here used a "Cutout"

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Old May 4, 2006, 03:18 PM
  #31  
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Originally Posted by sleet
Ok first of all the link you gave doesn't work, second I wasn't speaking about knock.
If you aren't talking about knock then why did you reply with:


"Quote:
Originally Posted by ct9a gsr
Oh, to the myth of the cut-out making the knock sensor go off, that's wrong.


You have proof? I've done logs with the UTEC and i've seen the ECU pulling timing with the cutout open, so somthing is going on. "





Originally Posted by sleet
My ECU runs a few degrees less timing with the cutout open opposed to closed.
http://www.personal.psu.edu/users/d/...gasdatalog.JPG

And your probably seeing less timing because your moving more air as per my reply.

Last edited by dan l; May 4, 2006 at 03:25 PM.
Old May 4, 2006, 03:19 PM
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double post
Old May 23, 2006, 12:12 PM
  #33  
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bump,... i would like one for my IX w/ stock exhaust.

can anybody confirm about knocking or not??
Old May 23, 2006, 12:28 PM
  #34  
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I highly doubt it less restriction would cause knock.

That being said I think there are more gains to be had by removing the weight of the stock piping and avoiding the noise the would be directly under the cabin. I cannot imagine road racing with an open downpipe under my feet.
Old May 23, 2006, 07:13 PM
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Originally Posted by DynoFlash
I tuned a car in AZ this weekend which also showed no gains from a Qtip

How did you go through 4 motors ?
The best exhaust on a turbo car is no exhaust. The exhaust pulses are nulled after the turbine wheel so their is no scavenging effect. Perhaps the placement of your customers cutout wasn't ideal. Mine is 6" after the O2 housing and facing the pavement (a straight shot). The exhaust to the rear of the car enters at a 90 degree angle to this tube. I also benefit from a low pressure area developing under the cutout while the car is at speed due to its deliberate placement. Because people are using it wrong doesen't make it a bad product.
Old Aug 24, 2006, 08:10 PM
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anyone try this one.......?
Old Aug 24, 2006, 08:12 PM
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http://www.mccordcg.com/mpp/mpp.htm

anyone try this one?
Old Aug 26, 2006, 09:57 AM
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give me some feedback
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