I run UpRev with a tuner cable so that I can change my own ROM at will.

I may switch to ECU Tek in the future if there are dyno proven results that they are better at getting power than Uprev, but that remains to be seen.

If I were just starting out and had no interest in being able to tune my own car, I would probably go with ECU Tek simply for the extra features they already offer.

Actually it isn't. Depending on the vendor, you're looking at around $500-1000. Most tuners can also email you updated tune files if necessary. Will Mine's do it without another check? Even if they did, the downtime would be an issue for me. And how would you get a dyno tune for your specific conditions if you have to send the ECU to Japan?

EcuTek Tuning GB with cable, and free shipping= 750.00$

This includes all your calibrations(tuning), with lifetime updates, your license, and the interface cable.

If you prefer not to change maps via cruise stalk, there will be options for that, so that's an easy issue

I check local shops they use the Osiris product. I'm waiting on them to respond about the ECU Tek and Up Rev products.

Don't get me wrong I appreciate the insight, I was just looking to see if anyone had any of the 3 ECU's that could speak on their personal experiences.

Then don't use it, my car uses Uprev and we never enabled the cruise control option. I have a single tune.
Also, you seem to be stuck on this Mine's is the "best" idea. Which is fair for some cars they work on, but the z34 does not seem to be one. Especially this ECU reflash. It sounds more like a canned tune, adjusting preset options to increase performance.

This will never match the ability of Uprev or ECUtech on a dyno or street. Now if you were in Japan I would say go to TS, Mine's, etc for a tune because they can see your car and tune onsite see different parameters. Or better yet, just fly Smokey over and have him do it: http://www.the370z.com/texas/14745-s...s-houston.html

Um, my 370's rev limiter is set at 7500 by Nissan. Something's not right here.

It honestly sounds like Mine's is selling a generic canned tune upgrade, that change is for a VQ3.5de motor.

Ok this sounds cool...So I would send the list of current mods to the dealer and they will send me a map to upload the new data and as I add more mods they will send me new maps? Is this correct?

Basically. You'll have to do some data logging and send them results, and then they tweak the map based on how your car is responding.

Ok so you direct experience with Uprev, question, in reference to the changes from stock to using the Uprev what did you notice? Are you seeing better response, better gas mileage, in your opinion what is the most significant change?

UpRev = Osiris. Just so we're clear.

So I get the car on a dyno send them the results based on the mods I have they then analyze the data and send me a new map?

Don't get me wrong totally understand the benefit of getting the car tuned along with the ECU at a shop, I just want to hear people's personal experiences with the products they have. Everyone drives differently what might be good for you and I may not be good for others. I'm just trying to get peoples input on there experiences. I do appreciate the info thought.

Ok, gotcha, I was unaware of that..thanks

On the dyno or on the street. I'd assume there's a good bit of street data logging, since not all of it is just tuning WOT. Other tuners offer the same type of service with Uprev, so you definitely have options there. I'm currently running Uprev, but very little of my experience will be applicable to you unless you're boosted.

FYI::
Mine's VX-ROM

Only person I saw with Mine's ECU was in Thailand, the opinions and thoughts are a little generic: http://www.the370z.com/members-370z-...mines-ecu.html

It looks like you are already, but I'd knock Mine's off of your list. It's a bit extreme to have in the US...anything goes wrong, you're SOL out here with no support.