One more question regarding tuning. Sorry, i posted this in a few different Uprev threads...

If the Nismo model has most of its "additional HP" from the tune it has, would getting an uprev tune not add much HP, but make the car drive better?? or would it still benefit 10 - 15 whp from the Uprev tune like other models?? Curious..

If you are going to a Pro Tuner and having your car tuned you're still starting from the base tune in your Z, and adjusting the values from there to dial in A/F ratio, and of course could play with some timing to extract as much HP as possible.

It's not throwing your existing tune out the window, it's adjusting what's there. There are tables and portions of the ECU which remain uncracked from UpRev, and aren't adjusted. There's a lot going on in the ECU.

Ok, thank you for the info.

Got a question about uprev that I've been pondering. When you bump the RPM limit to say 8k or 8.1k does the tuner make that part of the map from scratch? Also is there a limit to how high it can increase the RPM limit?

This cable wouldn't be a Tatrix obd2 to USB would it?

Also how much gain all stock with a tune?

UpRev cable and a question
 

Should be getting my UpRev hardware (standard - may go to tuner later) so I'll see what cable it has. I have several other OBD-II cables (serial, USB and even a WiFi one).

Now to my question - 2011 370Z Coupe, AT, Stillen intake, Stillen exhaust, Stillen headers and Berk cats (both yet to be installed). So what RWHP should I expect. My math seems to say a bit north of 350 RWHP and I found one dyno sheet with everything but the headers that showed 338 RWHP - curious if anyone else has the same gear and results?

Happy Holidays!

Never seen anyone near 340whp with bolt-ons. Depends on the dyno, some read high, ideally, you get the dyno numbers before and after a mod and check the difference.

Depends on the dyno really. Some read high while other read low. Most people with similar mods seem to average around 300-320 whp depending on the dyno. Anything higher than around 320 or so is probably a high reading dyno. Like prescott said though, it's only the change in whp from the mods that really matters.

I have a tuning question I hope someone can answer for me.

The common price I'm finding that forum members are paying for a tune is about $700. I recently got a quote for a shop close to me that is also charging $700 for a complete Dyno tune with licensing. Now, I found a cheaper shop that is only charging $300 but this is only for a tune.

I have never seen the tuning process but I'm assuming the car would have to go on a Dyno for a proper tuning and I would have to get the license in order to get the flash on the car. So what is the difference here between a $300 tune only and a $700 complete Dyno tune?

They can also do a road tune where they actually drive the car but this is hard to do, due to having to get to high rpm's in 5th gear.

Just the cost of the Osiris license is $300, so that would be just the reflash and a base tune. The $700 price includes the dyno tuning and the license, you're basically paying $300 for the license, and $400 for the dyno tuning.

The more affordable way to do it is purchase the cable & license and get it done via datalogs.. fully tuned for $500, plus you get to keep the cable.

UpRev told me they need a 0-60 log and a 1 minute log consisting of various driving conditions (driving through town for example) for them to make am E-Tune. Given that information, you probably do not need to get to the top of 5th gear for a road tune.

This is true

Sweet didn't know that