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

This is odd, so I removed my Z-tube and....

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  #61  
Old 07-11-2009 | 12:30 AM
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From: OC - So Cal
Originally Posted by DaveB
Your engine mods:




I'd say that covers most of them
evey one of them researched extensively... and remain on my car... a car that hasnt lost to an NA VQDE with those mods... in fact, beat 07 sedan and G37s... how many have you beat Dave?
 
  #62  
Old 07-11-2009 | 12:33 AM
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Originally Posted by SDGenius
OC, i have an extra JWT filter if ya need one. barely used and still clean.
thanks Mark... I just put the OEM on for now becasue of all the dust while at the shop... I'll clean the Stillen soon. I appreciate the offer
 
  #63  
Old 07-11-2009 | 12:57 AM
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Originally Posted by OCG35
of course not... his car isn’t able to compete with most of the real performance cars on this forum... but he has a bunch of information to share about how to race and how to make the car fast

Let me give you an example of the bogus info... I have said for a few years that the ECU cuts power when you brake trq... and that I achieve better ET by launching off idle... the car will slug forward but not have full throttle for a few split seconds if you apply brake and throttle at same time... low and behold after I requested that UpRev look into it, they determined the ECU DOES cut throttle (a fix is in the works)... yet Dave has always insisted that brake torque in the best method... even road course racer, John Coffey stated it is a know fact to most of the Z guys that do hard core racing - they all know the car cuts power when they apply brake and throttle even in an MT.
Here's what my G does when I apply the throttle and brake during a 2400rpm launch.


There's no concern with regards to lack of power. That's spinning thru all of first and then starting to spin a bit into 2nd. Something DaveO said was impossible with a 5AT. I've got it on film. Also, as you can see, that open differential isn't an issue during launch seeing that both tires are spinning equally.

I've never denied that the ECU dumbs down power on the launch, BUT launching off idle results in a lower launch rpm which means less power and less torque multiplication at the start. My brake stall launches result in low 2.1 60 foots most every time in temps below 75 degrees. Launch off idle? 2.3s. Same day testing at the strip. 12 passes total. 14.3-14.4 with the brake stall. 14.5-14.6 off idle. I don't know how it could get any clearer.
 
  #64  
Old 07-11-2009 | 01:48 AM
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You stood by Dave O's dyno test at Church's. You now saying that test was invalid? Because Tony clearly said the TBS did nothing. He tested it on his own and said it did nothing.
 
  #65  
Old 07-11-2009 | 01:50 AM
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Originally Posted by OCG35
of course not... his car isn’t able to compete with most of the real performance cars on this forum... but he has a bunch of information to share about how to race and how to make the car fast
Exactly where did he say his car with the limited mods he has was more competitive than the "real" performance cars? Link? Quote? Proof? I'll wait.
 
  #66  
Old 07-11-2009 | 02:16 AM
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You guys are ridiculous. All a waste of time. Its not a discussion, its just another argument. Nobody is really listening to the other side. Nothing will be gained in this debate. Those who don't try the TBS will stay out of it, those who use it will probably continue to use it.

Fortunately, anybody who is looking for real world answers to questions will do research and not take EVERY word that they read as truth.
 
  #67  
Old 07-11-2009 | 03:35 AM
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Originally Posted by OCG35
evey one of them researched extensively... and remain on my car... a car that hasnt lost to an NA VQDE with those mods... in fact, beat 07 sedan and G37s... how many have you beat Dave?

My car will pull a stock 07 HR sedan and hang beside one that has intakes, exhaust and a reflash. And that 07 HR sedan member is neck and neck with a HR 350z.


Figured I would plug my driving skills


Anyway, tomorrow I will be testing the gtube against that same 07 HR sedan to see if at any point in the powerband our results are any different.
 
  #68  
Old 07-11-2009 | 01:32 PM
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From: OC - So Cal
Originally Posted by Jeff92se
You stood by Dave O's dyno test at Church's. You now saying that test was invalid? Because Tony clearly said the TBS did nothing. He tested it on his own and said it did nothing.
Tony didn’t test it on his own... he tested it with me... I wasn’t at the dyno that DaveO did, but others were - and they confirmed gains... Shawn Church had already dyno'd it before anyone (including me) even knew about it - he saw 8hp gains...

Its the same ol' story every time we discuss this Jeff... the facts never change... however, you always persist with the same ol same ol until I have to set it clear which does put several people that know and respect each other at odds (in terms of their opinion of this mod).

I'll say this much - Shawn Church has the tbs on his car, DaveO had it on his car (the car is sold), I have it on my car, and Tony does not... to my knowledge these are the only people that have done any testing other than driving... take it for what its worth and stop beating a dead horse.

Read my very first post in this thread to remember the perspective of where this topic started... it was never a debate about tbs until you and Dave made it one.
 
  #69  
Old 07-11-2009 | 01:35 PM
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From: OC - So Cal
Originally Posted by Jeff92se
Exactly where did he say his car with the limited mods he has was more competitive than the "real" performance cars? Link? Quote? Proof? I'll wait.
Where did I ever state that he said anything like that? Quote? Proof?... I'll wait.

Making a statement does not imply quoting anyone... I made a statement... do you need me to post the definition of statement for you Jeff?
 
  #70  
Old 07-11-2009 | 02:22 PM
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Originally Posted by OCG35
Where did I ever state that he said anything like that? Quote? Proof?... I'll wait.

Making a statement does not imply quoting anyone... I made a statement... do you need me to post the definition of statement for you Jeff?

Carry on – put your entire car back to stock, because you still haven’t figured out a way to make it fast enough to be competitive (no matter how much you try to convince yourself and others).
Unlike you, I have a family to support and unlike many of Socal guys, my life doesn't revolve around pumping as much money into my ride as possible and getting it done as quick as possible to impress the masses. I could easily afford a far more expensive car or modify it with all the correct bolt-ons. I've owned faster cars in the past. It's nothing new to me. As I've gotten older, I choose to do things a little slower, enjoy my mods, try new things (cheap and free things), and pump my money into other more worthwhile things like investments, retirement/college fund accounts, my house, an 8-month+ cash reserve, etc.

BTW, thanks for ruining my thread, forcing it off topic, and making me have to defend non-topic issues.
 

Last edited by DaveB; 07-11-2009 at 02:33 PM.
  #71  
Old 07-11-2009 | 05:46 PM
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nice vid my car almost spins that much when I brake torque.
 
  #72  
Old 07-11-2009 | 05:48 PM
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Originally Posted by Rival
My car will pull a stock 07 HR sedan and hang beside one that has intakes, exhaust and a reflash. And that 07 HR sedan member is neck and neck with a HR 350z.


Figured I would plug my driving skills


Anyway, tomorrow I will be testing the gtube against that same 07 HR sedan to see if at any point in the powerband our results are any different.
bring your z-tube with you to do a couple of runs with it for comparison if possible. GL against the sedan.
 
  #73  
Old 07-12-2009 | 09:28 PM
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From: OC - So Cal
Originally Posted by DaveB
Unlike you, I have a family to support and unlike many of Socal guys, my life doesn't revolve around pumping as much money into my ride as possible and getting it done as quick as possible to impress the masses. I could easily afford a far more expensive car or modify it with all the correct bolt-ons. I've owned faster cars in the past. It's nothing new to me. As I've gotten older, I choose to do things a little slower, enjoy my mods, try new things (cheap and free things), and pump my money into other more worthwhile things like investments, retirement/college fund accounts, my house, an 8-month+ cash reserve, etc.

BTW, thanks for ruining my thread, forcing it off topic, and making me have to defend non-topic issues.
Dave, I had absolutely no intention to take your thread off topic… none whatsoever. I didn’t come in here to debate the tbs (and I wasn’t the one that started that debate)… I wanted to show you the correlation of your findings from your driving impressions (even though Tony found no gains on dyno) to what I have stated… I was simply stating that it wouldn’t be fair of me to say you have no foundation for your impressions of the G –tube… if you read the first post and actually take the time to understand what it says (and not misinterpret it), you’d understand that I was giving you the benefit of the doubt (initially) about your perception and trying to have you understand how it is relative to the way you have responded to the tbs…

I have no reason to chase you down and create drama. The only time the debate gets going is when you and/or Jeff respond in a way that I have to clarify/defend.

***There is nothing in this post that should cause any amount of drama or debate – so lets hope none develops.

Also, I understand you have other priorities and that’s totally respectable. Happy modding – in any form
 
  #74  
Old 07-12-2009 | 11:34 PM
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Alright, fair enough.
 
  #75  
Old 07-13-2009 | 12:32 AM
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Originally Posted by DaveB
Here's what my G does when I apply the throttle and brake during a 2400rpm launch.


There's no concern with regards to lack of power. That's spinning thru all of first and then starting to spin a bit into 2nd. Something DaveO said was impossible with a 5AT. I've got it on film. Also, as you can see, that open differential isn't an issue during launch seeing that both tires are spinning equally.

I've never denied that the ECU dumbs down power on the launch, BUT launching off idle results in a lower launch rpm which means less power and less torque multiplication at the start. My brake stall launches result in low 2.1 60 foots most every time in temps below 75 degrees. Launch off idle? 2.3s. Same day testing at the strip. 12 passes total. 14.3-14.4 with the brake stall. 14.5-14.6 off idle. I don't know how it could get any clearer.
damn i have an auto with JWT intake, 5/16 MD, Amuse exhaust, and i can roast my tires like that, WTF is wrong with my car?
 


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