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Discussion Starter · #1 ·
Two Sunday’s ago I decided to figure out if we could Dyno the R32 in FWD rather than AWD in order to allow us to Dyno Tune our new product line in-house. The answer is yes, it can be done very easily and by merely disabling the rear differential electronically.
Since there has been a lot of discussion on the topic I decided to do several runs in various gears with and with the Exhaust Valve hooked up and functioning as it was intended and the same runs with it fully open (disconnected and capped the vacuum line). Just for curiosity sake I also tested a K&N panel filter, new out of the box.
Here are the results:

The exhaust valve must not open all the way when hooked up and functioning as stock, if it did the power figures above 3500 rpm should be the same. So running it open seems to be the best choice for HP and Torque.
We are in the process of decoding and tuning the ECU and we will be dyno testing this upgrade and I will post the results here. We will also be testing a full series of exhaust upgrades and different variants of our 2.5” & 3” SS Systems with duel outlets of course. We will dyno and post the results for this as well.
-Rich


Modified by eiprich at 12:24 PM 3-16-2004
 

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Discussion Starter · #5 ·
Re: (Greanhouse)

Quote, originally posted by Greanhouse »
Thanks!
Oh, reply to my email 'bout the turbo kit pricing!!!! I'm dyin' over here!!!

Email just sent a few minutes ago...
-Rich
 

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Discussion Starter · #6 ·
Re: Dyno Results - R32 Exhaust Mod...and more... (Daemon42)

Quote, originally posted by Daemon42 »
Strange about the power increase that the top end. There seems to be no discernable
"opening point" in the stock dyno curve. Could you *hear* it opening at the
normal time? Above 45mph, above 3400 rpms? I wonder if the ECU was confused
about the wheelspeed sensors running in 2wd mode, and simply never actually opened
the valve.
ian

Yes it was opening as normal right at 3500 RPM but I agree the transition is surprisingly smooth. We have the entire session on video, we closed the bay door specifically so you can hear the change-over and it is loud when it opens.
We did multiple runs in each gear 3rd, 4th, and 5th just to be sure the results were consistent.
-Rich
 

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Discussion Starter · #8 ·
Re: Dyno Results - R32 Exhaust Mod...and more... (Daemon42)

Quote, originally posted by Daemon42 »
And switched it back to stock operation after the higher power runs?
ian

Yes...no change from the original stock runs.
Even though it makes power I run mine in stock form, like it quiet...I must be getting old

-Rich
 

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Discussion Starter · #15 ·
Re: Dyno Results - R32 Exhaust Mod...and more... (Daemon42)

Quote, originally posted by Daemon42 »
Here's a slightly condensed version of the dyno image.
ian

MAN, you beat me to it!
Well, I updated my original post with a pic rather than a link.
-Rich
 
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