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PTUNING: 3" Exhaust Dynoed with TRD S/C (Results are in

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Old 02-23-2008 | 05:23 AM
  #101  
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Any sound clips of this exhaust on an S/C yet?
Old 02-23-2008 | 05:35 AM
  #102  
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not yet. give me 1 week and ill get some good ones! :D
Old 03-03-2008 | 04:46 AM
  #103  
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http://www.youtube.com/watch?v=8Ji1S05yKiE Quick Videos will get some better ones soon
Old 03-03-2008 | 04:50 AM
  #104  
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Ok soo. Me and my friend who has a Auto Turbo Tc compared exhaust clips. Basically his sounds a bit quieter. I am pretty sure its because the methods of F/I. I do like it coming from a TRD it is def quite louder during driving and acceleration. You can def hear it in the cabin not that its a bad exhaust note or anything but its def louder then I was expecting but come on its a header back exhaust so what do you expect.

Over all I do like it, in 5th gear just cruising you literally can't hear it at all you have to give it some gas and then you can hear it. I know this was a question for a lot of people in terms of the noise/decibel level. If you normally have some music on at volume 15/20 youll be just fine.

The main thing i do love about it is the actual power it delivers. You can def feel a 100% difference in terms of the power Even though it peaked at 14 or so whp on the dyno at high RPM's you can def tell its there with norma acceleration.

I love it! :D
Old 03-03-2008 | 08:07 PM
  #105  
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Ok got a Interior and exterior video. Took the other one off.

http://www.kanundrum.net/Ptuning%20Exhaust.wmv

http://www.youtube.com/watch?v=KMy4t_pdHvI
Old 03-04-2008 | 12:00 AM
  #106  
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Mine should be going on Friday. Hope to have video up this weekend. Kinda worried about having the Megan header though.
Old 03-07-2008 | 09:48 PM
  #107  
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Just got the exhaust on a couple hours ago. Haven't really done a road test since the exhaust is pretty loud and it's raining with fairly heavy traffic. I'd like to get the sound a little more tame for my taste. It sounds pretty aggressive and not like a Honda with a coffee can. I just feel it's a ticket waiting to happen, lol.

I had P-tuning do before and after dyno pulls and I'm pleased with the results. Early last year I was basically stock (only engine performance mods I had were s/c, bosch 110 BPV, removed the hydrocarbon filter in the intake, and a Magnaflow cat-back exhaust). The WHP I got on P-tuning's dyno was about 160whp.

I then upgraded to the NST 9.5psi s/c pulley, NST overdriven alternator pulley, NST water pump pulley, Agency Power crank pulley, Fidanza flywheel, Clutchmasters stage 3 clutch, Turbosmart dualport BOV, Megan header, Invidia s-pipe, 2.5" high flow cat, resonator, and K&N filter. That put me up to 204.7whp on P-tuning's dyno.

After P-tuning's header-back exhaust was put on, power went up across the entire rpm range, putting me at 217whp.

I say it's a good investment for the power, but I'm thinking about tossing the Megan header for something else (get weird resonating sound at 1500rpm, and 2500rpm especially, and by the time I get up to 3500rpm, the sound is constant until redline). Like I said before, I'd also like to tone down the sound a little too. The resonating was there before the P-tuning exhaust went on though, but it's still there.

Before P-tuning exhaust


After P-tuning exhaust


AFR


PSI is about 9.2.
Old 03-07-2008 | 10:03 PM
  #108  
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^ you are an automatic? those numbers seem kinda low. What type of dyno was it at P-Tuning?
Old 03-07-2008 | 10:06 PM
  #109  
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I have a manual transmission. It's a dyno dynamics dyno. Add about 12-15% and you'll get about how much a dynojet would show.
Old 03-07-2008 | 10:10 PM
  #110  
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Scott those numbers still seem kind of low. They dynoed my car @ 190whp and I had the same setup as you ?
Old 03-07-2008 | 10:24 PM
  #111  
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Yeah, some reason my car reads lower than everyone else. when I went to the ZPI shootout, I had the bosch 110 and magnaflow exhaust and only got 165whp on their dyno dynamics dyno.
Old 03-07-2008 | 10:25 PM
  #112  
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might wanna check out ur supercharger bud seals and all, if not a compression test or something!
Old 03-07-2008 | 11:08 PM
  #113  
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Promotion Tuning said that compression looked ok, and haven't had any problems with burning oil, oil going low, leaking, or supercharger breaking.

Didn't you have a Unichip?
Old 03-07-2008 | 11:56 PM
  #114  
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Yea i did but it has been removed for at least a month or two easily when ptuning dynoed my car
Old 03-10-2008 | 12:15 AM
  #115  
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http://www.metacafe.com/watch/114792..._back_exhaust/

There are noticeable power gains with this exhaust, but with the Megan Racing header, the sound is quite loud (ticket waiting to happen loud). The backfire that you hear is because I have a TurboSmart dualport BOV and makes the car run slightly rich when letting off the throttle (occurs more often when free revving the engine). Engine performance mods: TRD supercharger, 9.5psi pulley, lightened crank and water pump pulleys, overdriven alternator pulley, light flywheel, stage 3 clutch, K&N drop in filter, TurboSmart DualPort BOV, Megan header, and 3" header back exhaust.
Old 03-10-2008 | 12:20 AM
  #116  
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^ Yeah the dual BPV makes me backfire too.
Old 03-10-2008 | 01:26 AM
  #117  
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Hey Kik, think you can hook me up with some bearings and seals for the s/c?
Old 03-10-2008 | 01:37 AM
  #118  
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Nice I wish I still had a s/c with the hybrid bov can you adjust it ? I had my hybrid set at 60 rec / 40 open and it to care of the backfires.
Old 03-10-2008 | 02:03 AM
  #119  
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Things were fine before adding the exhaust. I can adjust the BOV, but haven't yet.
Old 03-10-2008 | 02:09 AM
  #120  
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You have not cats left so thats why you are getting bad backfires.



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