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

I found this interesting Fujita = 10hp

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Old Apr 27, 2007 | 04:05 PM
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I found this interesting Fujita = 10hp

https://g35driver.com/forums/engine-vendor/152436-fujita-intakes-spectuned-com-10-hp-gain.html

Can anyone verify?
 
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Old Apr 27, 2007 | 04:07 PM
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doubt it.
 
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Old Apr 27, 2007 | 04:11 PM
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Well yeah, I'm "skeptical" also. Didn't want to flat out say it though. You see the other thread about the TB spacer dyno? Notice the ecu reset results? Hmmmm. hehe
 
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Old Apr 27, 2007 | 04:13 PM
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+ on the sound probably
but 10 hp is highly doubtable
 
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Old Apr 27, 2007 | 05:24 PM
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this intake is nothing new. it's been out for a while...doesnt look like anything special to me...
 
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Old Apr 27, 2007 | 05:31 PM
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Originally Posted by aHero4Eternity
this intake is nothing new. it's been out for a while...doesnt look like anything special to me...
My thoughts also. But no one has questioned their dyno either.
 
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Old Apr 27, 2007 | 05:37 PM
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It doesn't look any different than any other intake tube. It might make a few horses up top, but any time you dyno you're going to get some variance run to run. Even if they show a dyno doesn't mean the intake alone added 10 hp/tq because of the normal hp/tq variance.
 
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Old Apr 27, 2007 | 06:34 PM
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Old Apr 27, 2007 | 07:03 PM
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I had 7 hp gain on dyno between first and last run with nothing done to the car between runs.


 
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Old May 22, 2007 | 12:58 PM
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How did you keep upping the hp after each run? Anyone else?
 
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Old May 22, 2007 | 01:04 PM
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Originally Posted by Jeff92se
How did you keep upping the hp after each run? Anyone else?
It'll usually take a few pulls on the dyno to get your best numbers since your car does need to warm up. One hard pull too many on the dyno tho, and your car is running to hot to get it's highest numbers.
 
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Old May 22, 2007 | 01:06 PM
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So is that increase because he's letting it warm up or is it because of the intake itself?
 
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Old May 22, 2007 | 01:09 PM
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Originally Posted by dofu
It'll usually take a few pulls on the dyno to get your best numbers since your car does need to warm up. One hard pull too many on the dyno tho, and your car is running to hot to get it's highest numbers.

Once your car gets "hot" on the dyno it heat soaks and your numbers will go down.

Which one of those runs is the baseline and which one(s) have the intake?

Did you do multiple baseline runs too?
 
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Old May 22, 2007 | 08:31 PM
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All of those runs are with intake and exhaust with no mods done between runs. I did not do any runs on stock car.
My point was that we see only part of the picture with Fujita's dyno sheets. So Jeff92, we do not know what is compared to what-"cold" to "cold" or "hot" to "hot" or any combination of conditions.
 
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Old May 22, 2007 | 10:52 PM
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Jeff, look at the attachment to this post here:

https://g35driver.com/forums/showpos...5&postcount=17

That graph shows my first and third dyno runs, with no changes made to the car. The first pull was in 4th, and the 3rd was in 5th.
 
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