Calling all UpRev tuned cars....
 

Still can't believe how much gain G37Sam is claiming to have gotten with a UpRev tune on a N/A car. (Trust me...I really do want to believe)

Can you guys quickly comment on your gains.

I am starting to get tired of waiting on Cobb to get this VVL crap figured out...so I have been thinking about going with UpRev.

why you dont believe??

He live beside me.. and I know his car.. and my car will be tuned soon too.. and there are already 3 g37S tuned at same place where G37Sam did.. all off them got good gains.. Sam got 296 HP the other one got 291 HP.. why?? the answer is bcuz Sam got test pipe. the other dude got HFC..

and dont forget that sam raised his max rev RPM.. his car can rev all the way to 7600 RPM or somewhere around that..and the stock rev limiter is 7200 RPM..

I am hesitant to believe becuase the cobb tunes are getting like 1/3 those gains.

uprev doesn't mess with vvel either so its half dozen of one and six of another...I'm pretty sure the 370z has throttle opening as good as possible unlike the older Zs and Gs which is where more gains were seen on older VQs...

I'm pretty sure the only thing tuners change is your air fuel charts... and I'm not even sure if they mess with the timing yet either... So unless ur a/f is totally out of whack gains will be minimal compared to older Zs.

I have an uprev license from my old g35 and I have yet to get it into the Z. I have pre ordered the LTH and will probably get an exhaust before I use the uprev license in my 370 and I will be sure to post the before and after charts...

I may even put the license in sooner and I still will post.. My only mods now are G3 intakes and Test Pipes.

Well dude.. it depend on the tuner too..

I can see the G37 seeing bigger gains than the Z just due to the nature of the car, sports car vs. luxury performance. I could be wrong but I do believe the G offers slightly less hp from the factory than the Z and a lower Rev limit?

^ true that.. g37 coupe has less HP from factory than the 370Z, but not sure about the rev limit.. but even if the rev limit were the same.. the 370Z will still go over a g37 Coupe bcuz of less weight...

Personally, I am really liking Cobb, especially after their price decrease.

i had the uprev done and i gained about a 8whp gain nothing crazy deff felt the difference though

Tuning is not an exact science, from factory people have slightly different tunes which is one reason someone might get 15rwhp and another 10rwhp for the same mod. Then when they each get a tune, the one who gained 10rwhp might get 10 from the tune while the guy who got 15rwhp will only get 5.

http://image.motortrend.com/f/2008_i...rge/gauges.jpg

Looks like a 7500 redline to me.

Haha...true.

Thats why I am kinda wondering if the tuning or our car can be the way other tuners like APR, GIAC, etc. do it and just create several files with different mods to them. The outcome wont be 100% but from what I could tell on my last two turbo cars it was probably at 95% and only $500. Quick and easy too and new updates were free when you added another mod. They would have a tune for just a CBE, then a TBE, then a TBE CAI, etc.

The gains on Sams car are quite high but let's not forget how lean his A/F was before the tune, he was running almost stoich under full load:

http://img96.imageshack.us/img96/4126/afrk.jpg

But with each mod we do, doesnt that make us more and more lean too? If so that means if you have HFC, CBE, and CAI you should be very lean and should gain close to or better than his, right?

That's probably true but each factor (aftermarket part) counts and this creates and almost inifinite number of possible outcomes. Sam is running test pipes - this might have a totally diffferent effect in combination with his other mods, then say you running HFCs and a different intake.

We dont know if Sam's ECU has been rested before they did the "before" dyno run. Usually you would have expected the ECU to adapt better to the aftermarket parts and not run on a dangerously lean A/F. The only times I've seen this happen (on 350Z) is when the A/F meter housing diameter has been substantially increased without a tune.

So, I wonder if they reset the ECU for the before and then did the retune.
hmmmmmmmmmmm :stirthepot:

Which would be the correct way to do it BTW... ;) (for tuning)

So when I take my car to the shop to do a baseline dyno I should reset the ECU for 10mins before I start my pulls?

Depending on what you want to know...

how much your engine puts down without any long-term adaption of the ECU

or

how much your engine puts down right now, with whatever adaptions the ECU has made

Whichever is greater :D

I would think you would want to do the retune with your ECU adapted (as it was when you brought it in) so that the ECU is already adapted for the way you drive and for where you are, ie high or low elevation etc. , then do the tune. It may not show greater numbers but I think true numbers. I mean if the ECU adapts and compensates for things, then resetting it is kinda cheating for numbers in my book. But Im in no way an expert so this is just my 2 cents.

To me adaptation is baseline prior to mods of course. After mods its still part of the gained hp/tq numbers.

when you reset your ecu with heavy mods if you notice while letting it idle the revs will adjust a little. In fact with my car being stock right now I have noticed a little increase since the first I redlined it. It is a little wierd since Sams car basically has full bolt ons and it does lean it out. I think a stock Z would benefit more from a tune than a Z with full bolt ons until tuners can adjust every aspect of the new VQ.

my car was basically stock and i got 0hp from the tune

And this is a point Im wondering about, did you get 0 because the tuner didnt know as much as the one Sam had or did Sams tune to some maybe bad settings for long run? Again one will be better than others if they dont share their info via a database or something.

I hope they know more than Sam's tuner, he went to Uprev directly, in Austin, he was one of the early testers I believe or went in to help with a cold start issue.

how did you end up with zero? My RSX got about 50% of the gains stock when I got the KPRO vs when I had full bolt ons and KPROd it again. I don;t think the tuner you went to could adjust everything.

Jared, the owner of Uprev tuned my car. Keep in mind, i did almost 300 whp on their dyno with just intakes. Thats pretty strong i think when you compare it to what others run on that dyno. It doesn't really matter to me, im going back after i install the pulley and long tube headers and we will see what we get then.

did you pay for that intial tune cuz thatd be sweet. :tup: haha kiddin. Dynojets read quite high but they are the most common aside from dynamics. Its always awesome to see someone take their beloved sports car to a mustang dyno after they spent tons of money on bolt ons and then see the look on their face.

nope it was free. It's a matter of time. The Uprev guys are awesome and every car is different.

well thats good at least. Thats one thing I miss about the RSX is its been out for so long that nearly every setup you have you can just get the map online and plug it in through KRPO. Im sure the Z will be no different in a year or so. I am more interested as to why we have not seen or heard anything from the FId Z's out there since their debut. But I am planning on staying NA for a while so I really hope they figure out the 37vhr soon.

I wonder if UpRev has worked with any NISMO ECUs. They are in Austin, TX and that is about 45 mins from Fort Hood / Killeen. I am kinda set on picking up a Cobb AP, but I would at least pay UpRev a visit ti see what the deal is, since they are so close.

Uprev can only work on what is set to them, so unless Nismo owners are stopping by Uprev tuners and offloading their ECU to be sent back Uprev cannot do anything.
Also got an email from Uprev today, they will not be working on VVEL it looks like.

Next time I'm in the area I'll give them a call and stop by. Whatever I can do to help :tup:

I feel you. That is why I was going to pay them a visit when I get back. I would rather work with Cobb, but hey. Austin is a short drive and I will more than likely be driving thru there at some point anyway.

with Stillen G3 long tubes, stock cats, FI exhaust and the tune I put down 304whp on UpRev's dyno and even 307 one time. If I had HFC that would probably add 2-3 more..maybe.

What does that tell us with out a baseline whp figure to compare? :rolleyes:

I had mine tuned a little before Christmas. I had test pipes put on and then I got my tune right after that. The dotted lines are from the previous dyno I had a few months earlier. I got it from the only tuner here in Ohio and Im very pleased with the results. Heres the graph. It was done on a Dyno Pack I could problly get more if I went to a diffrent type of dyno.

http://i152.photobucket.com/albums/s...reandAfter.jpg

You have to keep in mind, UpRev on it's own won't do anything if there's isn't a brain operating it... All I'm saying is my tuner seemed to know what he's doing, and he did mess with the ignition big time, especially after richening out the mix it allowed him to advance the timing a lot. Now I don't know if my ignition timing was retarded a lot OEM for some reason or if all gulf spec cars are "de-tuned" like that which was why two other G37s saw similar gains but I do know for a fact that it's not just my butt dyno.

Ahhh "gulf spec"... you have very hot weather? He might have changed settings in the IAT compensation table which could make made a big difference in a very hot climate. ;)