My VQ35HR is with UPREV for a week
All ECU companys are great, just some do it differently than others. www.uprev.com Or search here or g35driver for uprev. Basically in a quick explanation, they program your ECU and tune your car with your stock ECU and you can have up to 5 maps where you can easily switch between them with the cruise control buttons. No need to crack the ECU open for this like Technosquare, etc. Also for FI applications, no need for added management devices, UPREV can do it all with the ECU. Also any mods you do, you take a data log on your laptop with their software, send it to them, they adjust the program and send it back to you and all you have to do is upload the new update and your ecu is now updated for the new mods.
Maps can be like this or however you want:
Stock
93 Octane Performance
87 Octane
Valet
Economy (for gas mileage)
Maps can be like this or however you want:
Stock
93 Octane Performance
87 Octane
Valet
Economy (for gas mileage)
Do you think that your horespower gains won't be as significant becaseu their isn't much correction for the ECU to make since thier are no changes to air flow that comes with exhaust and intake and such?
Not sure. I wanted to see what we could do on a basically stock car. Then I can start doing the mods. I am pretty sure they can at least get near 15 rwhp out of the car even being stock. On the DE engines they have shown this.
Damn i'm more anxious than you to see the results now! Good luck
Just to update. I just talked to Richard at UPREV, and they are working through it and should get it on the Dyno as soon as Today possibly to start testing the car to see how it is running and the final pull should be done on Friday. They are expecting some pretty substantial gains from the HR he said. So I can't wait to see what they get! 
How is he going to pull power out of a stock car? I mean if there is some kind of hidden power, why didn't the Nissan engineers utilize it?
Adding more fuel or something to make more power? I don't get it..
Adding more fuel or something to make more power? I don't get it..
Basically if you remember seeing a dyno curve on the Z, they are jagged. They smooth that out which gives the car more power but also tune it for 93 octane and not 91. Also many other tricks they do increase the power. Just like any ECU it will give power over stock to any car.
Basically if you remember seeing a dyno curve on the Z, they are jagged. They smooth that out which gives the car more power but also tune it for 93 octane and not 91. Also many other tricks they do increase the power. Just like any ECU it will give power over stock to any car.
Nope it gets to about 80% or so. All Nissan/Infinitis do that. It's an OEM potential liability thing as far as we can figure. So some 16yo doesn't hop in the car and run over a school bus full of children. I don't get it though because you can still do 100+mph in the car and that has way more potential for disaster. All I do know is thats what Nissan does to all their vehicles.
I heard about this... It makes sense if you want to keep a fool from losing control of the car while launching it. It's kind of a passive traction control device that you can't turn off... Well until now anyway. 
My Saturn Vue has the same feature... But in its case, GM did it to keep the owners from snapping the rear all wheel drive differential. The V6 had too much torque on tap to keep the RDM from blowing up on hard acceleration.
I'm really looking forward to the Osiris release, but I'm afraid they are going to take a while to release maps for exhaust and intake mods. Due to his current stock form, SOLO's final map will not produce the optimal power for a modded HR. What we need is more participants with various mods getting involved.
My Saturn Vue has the same feature... But in its case, GM did it to keep the owners from snapping the rear all wheel drive differential. The V6 had too much torque on tap to keep the RDM from blowing up on hard acceleration.
I'm really looking forward to the Osiris release, but I'm afraid they are going to take a while to release maps for exhaust and intake mods. Due to his current stock form, SOLO's final map will not produce the optimal power for a modded HR. What we need is more participants with various mods getting involved.
I heard about this... It makes sense if you want to keep a fool from losing control of the car while launching it. It's kind of a passive traction control device that you can't turn off... Well until now anyway.
My Saturn Vue has the same feature... But in its case, GM did it to keep the owners from snapping the rear all wheel drive differential. The V6 had too much torque on tap to keep the RDM from blowing up on hard acceleration.
I'm really looking forward to the Osiris release, but I'm afraid they are going to take a while to release maps for exhaust and intake mods. Due to his current stock form, SOLO's final map will not produce the optimal power for a modded HR. What we need is more participants with various mods getting involved.
My Saturn Vue has the same feature... But in its case, GM did it to keep the owners from snapping the rear all wheel drive differential. The V6 had too much torque on tap to keep the RDM from blowing up on hard acceleration.
I'm really looking forward to the Osiris release, but I'm afraid they are going to take a while to release maps for exhaust and intake mods. Due to his current stock form, SOLO's final map will not produce the optimal power for a modded HR. What we need is more participants with various mods getting involved.
When I did my datalogs, I didn't know of the 0-60 data requirement. I ended up doing some long pulls in 2nd, 3rd, and 4th gear. I emailed and asked if that was OK and they said it was fine.
I have a general question about email retunes if anyone can shed some light on it. What I'm curious about is, how aggressive do they tune it when you send them the data? I'm thinking one can only do so much with just an A/F and timing curve, without having the actual vehicle to monitor anything that the car might not like. Let's say the tune they resend you causes knock, do you email them another log for another retune to resolve the issue, or do they simply tune on the conservative side to prevent that type of problem?
TK