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

5/16 spacer installed no improvments over stock or 5/8 skunk 2

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Old May 19, 2008 | 11:41 PM
  #16  
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If you know Dave O, just ask him about the results of his testing.

He coordinated and ran the entire test project from beginning to end. And even if it may seem like a somewhat easy thing to do, it was actually a huge project that required the help of many people and vendors.
 
Old May 19, 2008 | 11:45 PM
  #17  
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Like Klubbheads said it might just change the power curve, as for the gtech from my personal experience their not too accurate but who knows..
 
Old May 19, 2008 | 11:50 PM
  #18  
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Dude get your car over to a reputable shop and do some runs. . .
 
Old May 19, 2008 | 11:52 PM
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Originally Posted by infinitialex
On the other hand thermal non-conductive properties of skunk2 make it better at keeping the plenum cooler.
That would be true when compared to the basic spacer, but the Iso Thermal spacer keeps both the upper AND lower plenum much cooler.

The Skunk spacer doesn't do anything for the lower plenum.
 
Old May 19, 2008 | 11:53 PM
  #20  
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Originally Posted by nismo240r
Dude get your car over to a reputable shop and do some runs. . .
just waste money
and find out what?
like i said if there was hp added it would show up on times.
 
Old May 19, 2008 | 11:59 PM
  #21  
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Something is wrong with this post....!

Originally Posted by infinitialex
i did runs on the same day, on the same road with same condition, multiple runs an hour later and there was no improvement. Also 3 days later and its no better

So the Verdict stands
I don't understand how 99% of us members that have installed MotorDynes
spacers have said up front that it was the best mod they'd ever made and
you're telling us it doesn't work? How is this possible?
 

Last edited by gary c; May 20, 2008 at 12:04 AM.
Old May 20, 2008 | 12:01 AM
  #22  
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Originally Posted by gary c
huh?
why post retarded comments?
 
Old May 20, 2008 | 12:15 AM
  #23  
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why post retarded statements?

seriously dude, you've got to get solid proof (dyno sheets) in order to make a claim like this. . .
 
Old May 20, 2008 | 12:28 AM
  #24  
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Originally Posted by nismo240r
why post retarded statements?

seriously dude, you've got to get solid proof (dyno sheets) in order to make a claim like this. . .
he changed his comments...


also as to why 99% of users said it was the best mod:
I doubt its anywhere close to 99%
I have also felt that spacer had made gains by my butt dyno to later find out it was in my head.

Im not trying to disproof that spacers work,, im just posting my own test results guys
 

Last edited by infinitialex; May 20, 2008 at 12:33 AM.
Old May 20, 2008 | 08:26 PM
  #25  
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Originally Posted by infinitialex
dyno numbers can be different each time and also
peak hp or peak torque don't mean squad
0-60 or 1/4mi are always a more accurate way to measure performance of your car.

1/4 mile times being consistent? What? Are you a professional drag racer? Are you that consistent that you can make runs exactly the same each time out at different days?

Can you honestly say that 1/4 mile times should be able to tell power gains? What if you suck at a launch or the tires are worn more than before? What if wheel spin is more due to ground temp vs. outside air temp?

There is NO substitute for a dyno. None.

Sure, running 1/4 mile can show a gain, but honestly, you're never going to tell as accurately as a dyno can. The car can be found to run rough or poorly via a 1/4 mile run. You can tune and adjust and tell if the car runs maybe better or rougher, but telling horsepower gains based on times is ridiculous. What does a spacer get you in terms of horsepower? What, 5 hp across the mid and 10 peak? At best?

You're not going to tell those power gains from drag strips... Consistency wise...

Run it on the dyno and post numbers. If you don't do that, it isn't fair to slam a product if you aren't willing to test it properly...
 
Old May 20, 2008 | 10:40 PM
  #26  
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hmm, strange.... my spacer was a huge upgrade for me.
 
Old May 20, 2008 | 10:49 PM
  #27  
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butt dyno
 
Old May 20, 2008 | 11:22 PM
  #28  
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Originally Posted by Lizard 1
1/4 mile times being consistent? What? Are you a professional drag racer? Are you that consistent that you can make runs exactly the same each time out at different days?

Can you honestly say that 1/4 mile times should be able to tell power gains? What if you suck at a launch or the tires are worn more than before? What if wheel spin is more due to ground temp vs. outside air temp?

There is NO substitute for a dyno. None.

Sure, running 1/4 mile can show a gain, but honestly, you're never going to tell as accurately as a dyno can. The car can be found to run rough or poorly via a 1/4 mile run. You can tune and adjust and tell if the car runs maybe better or rougher, but telling horsepower gains based on times is ridiculous. What does a spacer get you in terms of horsepower? What, 5 hp across the mid and 10 peak? At best?

You're not going to tell those power gains from drag strips... Consistency wise...

Run it on the dyno and post numbers. If you don't do that, it isn't fair to slam a product if you aren't willing to test it properly...
1/4 and 0-60 times will tell you more precisly if your mod is working or not.
I have done these tests long enough that i can say im pretty consistent at my 0-60 and 1/4 times, plus its automatic, pretty easy to be consistent.
Maybe there will be a nice gain with a tune combined but so far i see no gains. I had skunk2 spacer on and off for testing for over 6 month on my car. I have even tried it on my friends 04 g35 6 spd on the same day 1 hour between runs and we lost .2 sec of the 1/4 mi and 0-60.
Dyno will only give you bragging rights on your peak hp and torque but there is no substitute for the actual speed that your car moves at per given amount of time.
And as to 5-10 hp if the spacer does add that much across the rpm range should definetly be noticed. At least for .2 off your 1/4 mi
 
Old May 21, 2008 | 12:24 AM
  #29  
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I think you are onto something here...why use a $50,000 dyno to test horsepower when you can use a $200 Gtech! Quick, someone alert the tuning shops so they can quit wasting their money and buying dynos!

The Gtech is about as worthless as a butt dyno. Give me a break. Do you really think that a $200 accelerometer can accurately judge how far your car has traveled? You would be better off using landmarks as start and finish lines and having your buddy time you with a stop watch.

Maybe your VDC is kicking and slowing you down because you are making more power.
 
Old May 21, 2008 | 01:40 AM
  #30  
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Originally Posted by mx592
I think you are onto something here...why use a $50,000 dyno to test horsepower when you can use a $200 Gtech! Quick, someone alert the tuning shops so they can quit wasting their money and buying dynos!
..... i have been to tuning shops and been on dynos and going again isnt going to prove **** when i know my car is not any faster than before
Maybe your VDC is kicking and slowing you down because you are making more power.
you really r a tool if u think i would be running with VDC
On during testing
 


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