VVEL control unlocked

370zrider · 04-26-2013, 11:22 AM

Quote:

Originally Posted by Jordo!

I'm hoping they can also confirm or refute whether the Nismo ECU's have same or different VVEL target maps as compared to non-Nismo. I've been clinging to the hypothesis that they are different for ages now with no clear answers...

That is a good question.

Baer383 · 04-26-2013, 11:33 AM

I would say they are differant b/c I had my SC kit on my sport/touring and now my Nismo and my Nismo make more power across the whole RPM range and over 35 rwhp more.

370zrider · 04-26-2013, 12:37 PM

Quote:

Originally Posted by Baer383

I would say they are differant b/c I had my SC kit on my sport/touring and now my Nismo and my Nismo make more power across the whole RPM range and over 35 rwhp more.

With the same dyno, gas, ambient temp. ?

Baer383 · 04-26-2013, 08:46 PM

Quote:

Originally Posted by 370zrider

With the same dyno, gas, ambient temp. ?

Same dyno,same gas,same time of year but I noticed as soon as I started driving my Nismo I could tell it was fast right from the beginning.

Jordo! · 04-29-2013, 07:58 PM

Quote:

Originally Posted by Baer383

Same dyno,same gas,same time of year but I noticed as soon as I started driving my Nismo I could tell it was fast right from the beginning.

I've typically found in comparing stock nismo dynos to similarly modded AND tuned non-nismo Z's, the non-nismo Z's need TP's to make even gains (all readings from dynojets, using SAE correction, so easier to compare given the stability in dynojet readings across units).

Also, modded Nismos tend to fare better than similarly modded non-nismos, which is consistent with your own results.

That suggests there's more going on than just fuel, spark, and exhaust, but again, what we really need to see are the tables (or at least get a report from a tuner who can access them).

To me, that points to the one variable no one has been able to touch --VVEL.

But, that said, there's less data on Nismos because there are fewer Nismo owners...

So, it remains an open question...

Baer383 · 04-29-2013, 08:04 PM

Quote:

Originally Posted by Jordo!

I've typically found in comparing stock nismo dynos to similarly modded AND tuned non-nismo Z's, the non-nismo Z's need TP's to make even gains (all readings from dynojets, using SAE correction, so easier to compare given the stability in dynojet readings across units).

Also, modded Nismos tend to fare better than similarly modded non-nismos, which is consistent with your own results.

That suggests there's more going on than just fuel, spark, and exhaust, but again, what we really need to see are the tables (or at least get a report from a tuner who can access them).

To me, that points to the one variable no one has been able to touch --VVEL.

But, that said, there's less data on Nismos because there are fewer Nismo owners...

So, it remains an open question...

I definitely believe it is the VVEL ,knowing that non Nismo and Nismo engines are the same.

04-26-2013, 11:33 AM	#2 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	I would say they are differant b/c I had my SC kit on my sport/touring and now my Nismo and my Nismo make more power across the whole RPM range and over 35 rwhp more. __________________ 2013 ZL1 754 rwhp 747 rwtq

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