UpRev Tune Issue for MY2013+ 370Zs
 

After reading all the relevant tuning threads and conducting my own research, I decided to get an UpRev tune. My car is not heavily modified; I was more interested in increasing the throttle response than maximizing power.

This past week Seymore4 street tuned my car with UpRev. First of all, I just want to say that if you are interested in getting a tune and you are not near a dyno tuner or not interested in having a dyno tune, then I suggest you contact him. He is excellent at tuning, extremely knowledgeable, very friendly, reliable, prompt, and fair. He is active on other forums as well, where he has a great reputation and is held in high esteem.

So with a couple of second- and third-gear pulls, Seymore4 was able to tune the timing and fuel tables just fine, but when he would alter the throttle table, the car would almost immediately throw a code and go into limp mode. He tried starting over and reflashing a couple of times, and the only time the car would drive normally was when the stock throttle table was retained. My car's ECU part number is listed in UpRev's database, so it is a known entity. With just the timing and fuel optimized, there was almost no noticeable difference in feel from stock on my particular car. I toggled back and forth from the stock map to the tuned (timing and fuel only) map quite a few times to see if I could discern any significant difference, and I really couldn't. I think the throttle tuning is vitally important when tuning our cars.

Seymore4 contacted UpRev about not being able to tune the throttle table, and they responded that they have had experiences similar to mine and thus they do not alter the throttle table for 2013 and newer 370Zs. Maybe my knowledge base is lacking, but what good is a tune if the throttle table cannot be tuned? I wonder what would have happened if I bought the tune from UpRev directly. Would they have allowed me to return this product if I reported that the car felt no different from stock? Would they have warned me ahead of time of this issue based on the model year of my car?

Anyway, Seymore4 is a man of his word. He removed UpRev from my car and gave me a full refund.

Does anybody have any other input regarding this issue? Surely someone else with a 2013+ 370Z has an UpRev tune. I can't be the first one to experience this.

My Uprev tune experience was a 5hp increase on the top end and about 10 hp in the middle. The biggest difference I could feel was shift hardness. There is less overlap and a firmer shift between gears.

I am not convinced a tune is necessary for our cars if we are just adding exhaust and intake mods.

That sucks. I have a 2014

The only thing i would tune for would be throttle response

Not true, The stock throttle tables and "lame". The gains are off tuning the throttle tables, which in turn lets you adjust timing and fuel. with Intake and just a catback I mae 298 WHP. True my tune only netted me 2 WHP over the stock file( 296 WHP) but my throttle response was greatly improved along with the shift firmness and I pick up 15+ in the mid range.

UPREV told his tuner( Very very Good tuner) that the New 2014's throttle tables are locked and cannot be adjusted.

Wow. If I understand your post correctly, the Uprev tune (mine was tuned by Uprev at Uprev), the power gain is from tuning the throttle tables and those tables are locked as of 2014. So, how will the newer cars achieve gains?

They wont unless UPREV cracks the tables, or Ecutek has cracks the tables I think

This is not promising. I am eyeing on a used 2013 G37x sedan with 23k miles one owner.
I was thinking about keeping my Uprev Tuner so I can tune it on my own, but now I am not sure if I will go with the G.

Can anyone confirm if EcuTek is able to modify the throttle tables on 2013+ MY vehicles?

Here's a tuned 15. Minimal gains as the ecu had almost a perfect tune with LTHs, cbe, ported Tb's, ported upper and lower and G3's.

They both are able to access the tables.
http://www.the370z.com/tuning/43384-...tle-uprev.html

So I didn't read that whole thread, but you are saying the op is wrong?

More interested in driveability improvements and throttle response than hp/tq gains. That's why I'm specifically asking about the throttle tables on 13+ cars as discussed in this thread.

My experience, I got a tune from Seymore4 also, good guy and tuner, and I'm pretty sure he adjusted my throttle tables. I took the car a couple of months after the tune to a dyno and told the tuner there to just fine tune the A/F timing in the dyno and leave the throttle tables alone, since Seymore4 was working just fine. My car went from 294whp with only intakes to 322 with intakes and catback. Mines a 2013...

Have to ask my tuner.

ECUTEK can adjust the throttle tables on 2013+. Here is a link to an earlier post:

http://www.the370z.com/tuning/43384-...ml#post2810157