Uprev Osiris tuning questions
 

I have read on the Uprev website and I am interested in getting there (Standard) edition but have some questions about the product. Is this something I install myself or is it more complicated than that. Also if I get this product is it worth it to do the etune or go to a place like Z1 motorsports for them to fine tune the ecu. With a good CAI and HFC's how much power should I expect with the standard edition out of the box and how much should I expect with the help of etune or Z1 motorsports? Im kinda new to this so....... Thanks for the help

Not to hijack, but I had similar questions...
And with the tool, can I read the default tables from the ECU? Or at least the capability to flash the original configuration back into it?

It is possible to get just an e-tune which you upload (flash) via the provided cable. This will also allow you to flash back to the stock ROM if needed. This would not require you to not do anything unless the tune is off. You would check the tune by going to a dyno or installing a wideband (measures (A\F). You other option is to get the Tuner software and if you are mentally capable of tuning a car and know how or what parameters to change this will allow you to do that. That being said, you are more apt to destroying (engine) something if you have no background or experiences with gas engines and tuning.

Your best bet is taking the Z to a certified UpRev Pro Tuner location and having them tune your car in a controlled environment and by someone competent in engine tuning. They should have the appropriate equipment to log data and safely perform your tune based on your modifications.

If needed the Pro Tuner can reflash the ECU back to stock.

If you have any questions let me know.

If you get the Osiris package they will also send you the stock flash, so you can go completely back to stock when needed. Only takes like 10-20 seconds to do. Only requirement with UpRev is that you need a Laptop, since all they provide is the cable, license, and software.

Not sure what you mean by needing to install a wideband to get A/F measurements, as we already have sensors to read this, and its part of the data you need to collect for the E-Tune.

Just to clarify, none of the Osiris cables come with any maps other than the stock map. So you WILL have to either e-tune it using datalogging and sending the logs to Uprev, GTM, etc. or dyno tune it at an Uprev dealer. It's not like the Cobb AP with the Stage 1, 2, etc maps.

How good can they e-tune with data logging compared to a live tune on a dyno / road.

If there is an Osiris tuner in your area, it's always best to have it directly tuned on a dyno. If there is no other option, then the e-tune route works, but may take 2-3 attempts to get it perfect. This takes time, as you need to send out a datalog, wait for the changes to be made, upload the new tune, and datalog again to see if the changes helped or not. If not, guess what; you're doing the whole process over until you get it right.

A proper e-tune makes maybe 90-95% of the power that a dyno tune allows you to make with pretty much the same reliability/safety. For example, my friend's G35 was e-tuned by Sam@GTM a few months ago. Later on, an uprev tuner opened nearby and checked his maps. Everything was good on the e-tuned map. He just made a couple very slight changes and was able to extract a couple more hp's on the dyno, nothing major.

Guys... I was told that I need to give my VIN number (no problem) and Computer code for my car for the Uprev Tune. Did anyone have to do that? How can I get the computer code???

The UpRev dealer can use the VIN to find out the specific ECU part number for your car, so that they can send you the correct ROM file.

cool deal. thx!

Different Z/G's will come with different ECU part numbers. For example, my ECU is 1NB1A, which has already been cracked by Uprev previously on another 2008 G35 sedan that has the same ECU part number. Therefore all I have to do to be able to tune the car is flash the ECU with the Uprev version of the ROM file for my specific ECU part number. This Uprev version is identical to the stock ROM file from factory only this one is cracked and thus you can access all the tables to modify using Uprev Osiris.

If your ECU part number is not on the list of cracked ECUs, then you will need to do a ROM dump and send the data to Uprev so they can crack it and add it to their list. That's is why they were asking for your ECU part number. uoi can find the number either by connecting the Cipher cable, by the VIN or by taking out the ECU and looking at the number printed on it.

how can i find it with the VIN?

If you are trying to tune your car NA, it's nearly impossible to get repeated good results from an eTune. NA tuning is about extracting those less few whp out of the car, and each engine is setup is slightly different. With a turbo car, it's a different story. We do dozens of etunes on many different platforms, such as Evo's, Sub's, GT-R, 370Z's..etc..etc.

Your best bet is contact a shop that can you setup with a complete package with an Osirus license, and a custom dyno tune. PM em if you have any questions...we are located in the Atlanta metro area.

What do you mean by "it's nearly impossible to get repeated good results from an eTune"? Are you talking about a canned etune that is sent to you (similar to Cobb's methodolgy)?

Please correct me if I am wrong, but I would think Uprev's data logging process, map tweaking, and upload on a car would be good. Certainly not the best option, but 'good enough'. Are we talking about the same thing? I think we are, but want to be sure.

Also, I just got my Cipher cable for datalogging. The only thing in the package was that; no software or anything. Is that right? I just plug the cable into the OBD port, the USB into the laptop, datalog, and send the files back via email or something?

And Sharif, I am very disapointed you have not posted more pics or vids of your race prepped Z!!!!!!!!!! Don't leave us hanging!!!!!

any dyno number brfore and after a N/A tune? what kind of additional power (on the average) is being extracted by a custom tune on these cars?

Back and forth datalogs can only tell you so much. They can tell you if the tune is safe. But without a way of measuring the outcome of the tuning changes, it's really impossible to know if/where you are making more power. The butt dyno is highly inaccurate, even moreso when trying to feel a power improvement in the 10-20 whp range which is typical with custom NA dyno tunes.

Now with a forced induction car, eTuning works really well, because in addition to the standard fuel, timing, cam tables that are optimized...we are also making the most important change with respect to power output: increasing the boost level. :) On some cars, it's not uncommon to see 50-100whp improvements from forced induction eTuning.

Every car is different, but we usually see anywhere from 12-22whp from dyno tuning the 370Z. It depends on the condition of the OEM ECU calibration that you walk in with, and how it's been adapting and responding to the mods on the car. For instance, if you are running extremely rich or extremely lean, the power gains we'll make will be extraordinary. If your walk in OEM calibration is closer to optimum, than I would expect a gain on the lower end of the scale.

I've seen a few NA cars come in with lots of mods, and AF ratios in the 14's at WOT! Talk about poor power, and high danger!

Thx Sharif. What about that Z race car!?!

:iagree:

I've had to stop midway through the first pull because the wideband was showing mid 14's under full load at 4500!

i thought the computer is able to adapt to small mods. i just have the stillen intakes and thats it. shouldnt the computer be able to adjust for that? or are you talking about intake, headers, test pipes and cbe.

It adjust for stiochmetric conditions at idle and cruise. At WOT, the level of correction is much smaller even with the new OEM wideband sensors from the factory. This means the fixed base fuel table is still the critical map to have correct.

But if we have datalogged our normal driving and sprited runs, such as is requried with Uprev, would that not suffice for minor mods?

I would think it more critical to have a turbo car actually on the dyno that a simple bolt on mod NA car.

The problem is, we as tuners can't see the effects of our changes in real time. Say you send us a data log, and it shows you are way rich in the mid range, and some fuel needs to be taken out at those rpm cells. Sure, I can make an informed guess and get it close, but there is a chance it won't be perfect the first time.

Then you get into ignition timing, which is a whole other ball game. You cannot tune timing based on a data log without real time feedback from the dyno. Camshaft timing is the same way, the tuner needs to see if his changes are making a positive change or not, based on dyno feedback.

i would always recommend a tune in person vs a mail in tune. i never really bothered with N/A cars but all my turbo cars have always been dyno the street tuned, there is no other proper way imho.

My FI cars (supercharged Stang GT / SR20DET S13) were always dyno tuned. I feel comfortable with the mail in tunes. I do not really have a choice anyway.... I am not going to SRD in AZ and trusting them with my Z. That is a Honda shop and they have messed up several Nissans that I have seen in person. WOW.

Chris, I think you hit it; you may not get it right the first time, so it could take several tweaks. If I did have a reputable Uprev tuner in AZ, I would be all over it...

come to texas, uprev is here in austin and you can have some great BBQ plus you can try out the roads in the hill country which will really make your drive worth it.

Actually, I am in Austin a lot due to business! But I unfortunately have no where near the time to drive my Z there. To bad.... I am very jealous of your hills...

Now, about that BBQ... Where can I go for good BBQ in Austin!??! Please share so that I can try it when I am there again!!

Mmm....BBQ
http://blog.oregonlive.com/news_impa...omer.drool.jpg

^ Homer Simpson FTW!!

Chris is right on about the tune. Real time is the best, but you can get an OK tune by mail. It's really up to you about how close you want to get to the ideal tune. If you're good with the mail in, by all means. It's your car. If it where me, I'd make a little trip out of it. A day at the tuner and a mini vacation perhaps. Another option is to get some dyno time and bring the tuner to you. They like road trips too. GL with your quest.

Real time is best for what? Power or safety?

For both. There is a lot to watch for. Like Chris said, once you start getting into ignition timing it can get very interesting. As mentioned above, all the motors are different as are tunes should be. Some are "Lean and mean" and others like "Fat and rich". Your tuner will hopefully find the winning combo for you. He might need to make it rich through some RPM ranges and then lean it out in others. You should be good with a "E-mail tune" but to get all you can, live is the way to go. Having said that, don't expect a huge difference in the two tunes. You're only trying to squeeze the final ponies out of your engine. Another thing to watch is the tuner himself. Some like it on the "Cutting edge" and some are "Safe". Hope it helps and let us know how you make out and who you deal with.

Good data. I see you are moving to AZ. COOL! Quite a weather switch for you...