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Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   Fast Intentions exhaust and header comparison. Before and after UPRev tune (Dyno) (http://www.the370z.com/intake-exhaust/16039-fast-intentions-exhaust-header-comparison-before-after-uprev-tune-dyno.html)

G37Sam 03-24-2010 12:55 PM
F5....

F.I. Inc. 03-24-2010 01:05 PM
Quote:
Originally Posted by semtex (Post 462094)
Not trying to rain on the parade here, but I have to say that I find the absence of any comment on the impact of these headers on low-end torque and power somewhat conspicuous. What happened on the low end? Please tell me that the gains in the midrange didn't come at a huge expense on the low end. *keeping fingers crossed*
On the contrary, we actually picked up torque and power throughout! At the highest gap for a torque increase it was at 4300 RPM's. We had an increase of 18 FT LBS. A far as power, the highest gap increase was at 4300 as well as 5900 RPM's. That increase was around 15-16 RWH. This is just a tid bit, I promise I will post the dynos soon. As far as the tune, what we were mainly able to do is clean the A/F up which made the car safe. The timing we demanded was kicked back by the ECU and I feel higher octane fuel than our California 91 garbage will help the car perform better!

Daishi 03-24-2010 01:07 PM
Quote:
Originally Posted by F.I. Inc. (Post 462136)
On the contrary, we actually picked up torque and power throughout! At the highest gap for a torque increase it was at 4300 RPM's. We had an increase of 18 FT LBS. A far as power, the highest gap increase was at 4300 as well as 5900 RPM's. That increase was around 15-16 RWH. This is just a tid bit, I promise I will post the dynos soon. As far as the tune, what we were mainly able to do is clean the A/F up which made the car safe. The timing we demanded was kicked back by the ECU and I feel higher octane fuel than our California 91 garbage will help the car perform better!
These numbers are all stock cats vs the LTH's right? what do you expect for gains for people that have test pipes..

kannibul 03-24-2010 01:49 PM
Quote:
Originally Posted by F.I. Inc. (Post 462136)
On the contrary, we actually picked up torque and power throughout! At the highest gap for a torque increase it was at 4300 RPM's. We had an increase of 18 FT LBS. A far as power, the highest gap increase was at 4300 as well as 5900 RPM's. That increase was around 15-16 RWH. This is just a tid bit, I promise I will post the dynos soon. As far as the tune, what we were mainly able to do is clean the A/F up which made the car safe. The timing we demanded was kicked back by the ECU and I feel higher octane fuel than our California 91 garbage will help the car perform better!
So, I guess that confirms that timing advance via "tune" still isn't possible - just fuel maps?

Given VVEL, and how it works, it makes sense that they'd not want anyone tweaking timing, you get a valve too far out there where it shouldn't be, and it'll get bent....

LiquidZ 03-24-2010 01:53 PM
Quote:
Originally Posted by kannibul (Post 462193)
So, I guess that confirms that timing advance via "tune" still isn't possible - just fuel maps?

Given VVEL, and how it works, it makes sense that they'd not want anyone tweaking timing, you get a valve too far out there where it shouldn't be, and it'll get bent....
I think he meant that the timing adjustments they wanted would have stayed if the fuel wasn't trash. If that's true, thats good news for people with access to 93 octane.

semtex 03-24-2010 02:08 PM
Quote:
Originally Posted by F.I. Inc. (Post 462136)
On the contrary, we actually picked up torque and power throughout! At the highest gap for a torque increase it was at 4300 RPM's. We had an increase of 18 FT LBS. A far as power, the highest gap increase was at 4300 as well as 5900 RPM's. That increase was around 15-16 RWH. This is just a tid bit, I promise I will post the dynos soon. As far as the tune, what we were mainly able to do is clean the A/F up which made the car safe. The timing we demanded was kicked back by the ECU and I feel higher octane fuel than our California 91 garbage will help the car perform better!
Outstanding. Thx for the reassurance, Tony.

Quote:
Originally Posted by LiquidZ (Post 462197)
I think he meant that the timing adjustments they wanted would have stayed if the fuel wasn't trash. If that's true, thats good news for people with access to 93 octane.
Higher octane would certainly help, but Tony's experience is consistent with mine. The timing adjustments we made went nowhere, and I put Shell 93 in my car.

LiquidZ 03-24-2010 02:11 PM
Semtex, thanks for the clarification.

F.I. Inc. 03-24-2010 02:26 PM
Quote:
Originally Posted by Daishi (Post 462138)
These numbers are all stock cats vs the LTH's right? what do you expect for gains for people that have test pipes..
No, these numbers are over our high flow cats and CBE!

B1nks 03-24-2010 03:51 PM
Quote:
Originally Posted by F.I. Inc. (Post 462235)
No, these numbers are over our high flow cats and CBE!
With these no dyno sheet posts you are KILLING ME Smallz !

F.I. Inc. 03-24-2010 03:56 PM
Quote:
Originally Posted by B1nks (Post 462344)
With these no dyno sheet posts you are KILLING ME Smallz !
Now climb through the fence and get the ball back smallz!!!

B1nks 03-24-2010 05:47 PM
Who is supposed to be posting this dyno chart ? If it's Kolya he is getting a -rep for taking so long. If it's Tony he is getting a neutral rep but it's only cause he's busy as FUUUUUUUUUUUUUUUUUUUU

F.I. Inc. 03-24-2010 05:54 PM
http://i371.photobucket.com/albums/o...ch_23_2010.jpg

B1nks 03-24-2010 06:06 PM
That's pretty good since it's put up against the HFC..I should have got in on that group buy pricing. Poo.

PS: THE ONLY problem I would have with this setup is still the yearly state inspection I have to go through (next is due 04/11) and I would have to take the LTH off (pay to have someone take them off) and put the stock setup back on. Kinda annoying for me to deal with.

theDreamer 03-24-2010 06:09 PM
Quote:
Originally Posted by B1nks (Post 462569)
That's pretty good since it's put up against the HFC..I should have got in on that group buy pricing. Poo.
You can always stop by and drool over my set. :tup:

F.I. Inc. 03-24-2010 06:10 PM
Thanks bro! I will post this dyno chart and the A/F chart in the front of this thread as well. This is just for now to feed you all something...

Thanks, Tony


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