what motor?

 

hmm I just received the Osiris and dumped my ECU into a file to send it to Uprev, so they can send me a tuned map based on that.. but after doing the dump, the car won't start :O Also, Osiris won't detect my ecu as a valid ecu anymore.

I am assuming that the dumping procedure is putting something onto the ecu rather than just reading.

sent email to Uprev, hopefully its not fully bricked and I will be able to get it back up and running without major issues.. !

 

Sorry to hear this. I had some problems with earlier versions of Osiris and had to send my ECU to them for repair.

Current versions of Osiris have the ability to repair the ECU. I guess the downside for you is that Osiris doesn't recognize your ECU. It can't repair what it doesn't understand.

I am surprised that a simple dump corrupted your ECU. I would think that it would just read the data and write it out. I don't see how the data could be corrupted. Try unhooking your battery for a while and see if it will start. There are also some troubleshooting tips in the Osiris documentation... You might check them out.

Make sure something else isn't causing the problem... Plus you might call them instead of an e-mail. Jared posted UpRev's phone numbers in a prior post in this thread.

 

Uprev suggested me to leave the ecu unplugged for a while to reset it and fixed the problem. Now I am waiting for the tuned map

 

I'm revving to 7200 rpm (non-revup) but I'm cammed and make power up top . If you are stock its kinda pointless. Uprev can set the limiter wherever you want it.

 

Have the instructions been posted on how to restote the ECU back to stock, completely, in case we need to take the car back to the dealership? If and when I ever need this, I don't want to be chasing down this info overnight. I know how to flash the original ROM, but I understand there's more to it. Jared? What about it?

 

To return back to 100% stock you need to contact us for support. Not only will you want the vehicle back to stock, but we need to return the flash license back onto the cable so that you can re-use the cable in the future.

matt

 

Humm nothing new today.

 

Well I went to the dyno and I wasn't too pleased.

I don't have my scanner at my new apt so I can't scan in my dyno.

Baseline from two months ago was 262.6HP/245.2TQ

First pull was stock tune: 268.8/248.6

The differences here were XO2 exhaust added and TBS.

Second pull was UpRev tune: 261.9/251.8TQ


I did gain 7-14HP throughout the power band over 3600RPM.
Between 2900 and 3600 there was a loss, max being at 3300-3400 of around 10.

I will try to get this scanned at work asap. I think I may be running too rich up top, gonna have to play with the tune some more.

 

I'm getting test pipes soon. I guess I will need to use the Non-Foulers to avoid any problems with the CEL. How is this going to affect the AFR readings from the Cipher? Will they now be inaccurate? According to the seller, these test pipes have an extra bung setup for wideband monitoring too...

Any inputs?

 

What were you expecting? Those numbers sound right for your mods. I have yet to see a TBS gain anything...so you're really just working with the exhaust and tune. I'd say you did pretty good!

 

I believe the AFRs are taken off the front set of O2 sensors not the ones in the cats.

 

I was expecting to make more power up top with my tune....

 

He is correct. Your secondary O2 sensors are to make sure your cats are doing their job. They will throw a code once they do not function sufficiently.

 

Well that is where just a tune and exhaust can't help you. I'm not real familiar with the revup VQ35DE but it would make sense that you would need something on the intake side to make power up top.

You might want to look into the MREV 2. May not be what you are looking for since it isn't all about peak hp, but does give good gains under the curve in the mid-upper rpm.

http://motordyneengineering.com/G35.htm

 

Each engine is different so working from 0 - 60 logs Uprev can only do so much. I would expect that the only way to max out the HP is to take the car to an Osiris tuner witha Dyno who can tune it in real time. My car (when running w/o nos) is stock except for a plenum spacer and I got +7HP and +10 #ft torque from Uprev tune to Osiris tune on a dyno.

 

Are those SAE uncorrected numbers or corrected numbers?

Did you reset the "Learned Fuel Settings" via Cipher before the runs?

 

SAE corrected.

Yes.

Back to back pulls. I drive around in the tuned map. I switched to stock map. Pulled. Switched to tune map. Pulled.


Don't get me wrong, I'm not saying "F UpRev and F Osiris". I think this is a great product. I just didn't realize that my top end was off that much.

I still haven't gotten my dyno scanned but if your recall, I said I gained as much as 13-15 in the midrange. So it's obviously doing something. I just need to spend some more time tuning.

Again I respect and appreciate UpRev 100%. I was just disappointed with the top end after an already crappy day at work.


My mods: Injen CAI (don't tell me to switch intakes, I'm going FI soon), Polished/Ported MREV2+, 1/2" MD, Headers, Test Pipes, XO2, TBS

 

I just realized that again I may have not been 100% clear.

I accept the VQ for what it is. I am NOT disappointed by the top end of this car. I was disappointed that I lost HP at the top end but super happy with the gains in the midrange.

This is obviously due to the tune and can be corrected.

 

Did you real time tune it or just run a tune out of the box?

Each motor is slightly different in terms of what it likes on the fuel side so a real time tune with back to back runs should provide you with better results IMO

FWIW the first pull after my TBS was 5hp higher than my previous baseline....as the ECU learned I gained even more....but I also have a popcharger (cant say whether that helps but it may be a factor)...I am also on the higher side of gains seen for a TBS and all the gains were topend with that thing (stock map)