Uprev Osiris installed!
Joined: Mar 2005
Posts: 74
Likes: 0
From: South Florida.
I've had it installed for a little over a week now. I wanted to make sure I was familiar with the new changes to the car before I talked about it.
The installation took a few minutes to install the software in the laptop and get it running. After that, it's strait forward, hook up the cable, select the appropriate ROM to flash with, and then click flash. The flash takes a few minutes, follow the instructions it tells you and you're done.
Now, as soon as I was done, I started the car and really didn't notice anything different. I then decided to test the map switching deal with the cruise control buttons, changed it to map #3, which is the valet map and floored the gas. The RPMs stopped at the preset 3500rpms (the rev limiter sounds really good). Took it for a drive on the same map and the speed limiter is set at 35 mph. As soon as you reach 35mph it just smoothly stays there, regardless of how much gas you give it, no jerkiness or anything like that. I really like that feature.
While still driving I switched to map #2 (performance map for 93oct). It switches right away, you don't even notice. I then went to my usual spot to log some runs with Cipher and send back to Jared for finetuning. I noticed that the car pulls a lot harder thru the whole rpms range until the rev limiter, set to 7300rpms, and the biggest thing I noticed was the hesitation during shifts and when you first step on it, was gone. I'm sure people with 6 speeds know what I'm talking about. It used to be a delay on power delivery, even if you powershifted (gas floored while shifting) it would pause for a second. It now spins the tires in second gear for a good two to three seconds if you powershift or quick shift.
I'm very satisfied with this mod. One more thing. I did some logging before the flash, just so I can compare. Well, you see for yourself at the before and after logs. I don't care how he does it, but the AFR was pretty much a flat line all the way to the rev limiter. After I emailed him the logs, he did some finetuning to it, and it still look flat to me. I guess I'm a believer too. Now, I'd like to get it dyno'd again after the mods.
The installation took a few minutes to install the software in the laptop and get it running. After that, it's strait forward, hook up the cable, select the appropriate ROM to flash with, and then click flash. The flash takes a few minutes, follow the instructions it tells you and you're done.
Now, as soon as I was done, I started the car and really didn't notice anything different. I then decided to test the map switching deal with the cruise control buttons, changed it to map #3, which is the valet map and floored the gas. The RPMs stopped at the preset 3500rpms (the rev limiter sounds really good). Took it for a drive on the same map and the speed limiter is set at 35 mph. As soon as you reach 35mph it just smoothly stays there, regardless of how much gas you give it, no jerkiness or anything like that. I really like that feature.
While still driving I switched to map #2 (performance map for 93oct). It switches right away, you don't even notice. I then went to my usual spot to log some runs with Cipher and send back to Jared for finetuning. I noticed that the car pulls a lot harder thru the whole rpms range until the rev limiter, set to 7300rpms, and the biggest thing I noticed was the hesitation during shifts and when you first step on it, was gone. I'm sure people with 6 speeds know what I'm talking about. It used to be a delay on power delivery, even if you powershifted (gas floored while shifting) it would pause for a second. It now spins the tires in second gear for a good two to three seconds if you powershift or quick shift.
I'm very satisfied with this mod. One more thing. I did some logging before the flash, just so I can compare. Well, you see for yourself at the before and after logs. I don't care how he does it, but the AFR was pretty much a flat line all the way to the rev limiter. After I emailed him the logs, he did some finetuning to it, and it still look flat to me. I guess I'm a believer too. Now, I'd like to get it dyno'd again after the mods.
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
Looks good. In your after AFR, it does dip into the 12's right? Having the AFR 13 all the way to redline isnt something I've heard of. Usually it runs a bit richer at higher RPM's, even in NA.
Joined: Mar 2005
Posts: 74
Likes: 0
From: South Florida.
Thanks. The car before the tune was really rich at the top end. At points it got into the 10s. Keeping it steady around 13.5 all the way to red line has woken up my engine.
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Originally Posted by skaterbasist
Looks good. In your after AFR, it does dip into the 12's right? Having the AFR 13 all the way to redline isnt something I've heard of. Usually it runs a bit richer at higher RPM's, even in NA.
For example, here is my latest dyno pull. That was in >95 degree weather, so the SAE correction factor was 1.06. That means that even after the tune, the factory ecu was dumping fuel to cool the combution chamber. And also keep in mind that that was a tailpipe sniffer. When Sharif tuned my car on his Dyno Dynamics, he used a wideband and got the tune to an almost perfect 13.1:1 all the way till redline.
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
Originally Posted by trey.hutcheson
13.0:1 or 13.1:1 is the typical sweetspot for this engine. But of course, each individual engine is different.
For example, here is my latest dyno pull. That was in >95 degree weather, so the SAE correction factor was 1.06. That means that even after the tune, the factory ecu was dumping fuel to cool the combution chamber. And also keep in mind that that was a tailpipe sniffer. When Sharif tuned my car on his Dyno Dynamics, he used a wideband and got the tune to an almost perfect 13.1:1 all the way till redline.

For example, here is my latest dyno pull. That was in >95 degree weather, so the SAE correction factor was 1.06. That means that even after the tune, the factory ecu was dumping fuel to cool the combution chamber. And also keep in mind that that was a tailpipe sniffer. When Sharif tuned my car on his Dyno Dynamics, he used a wideband and got the tune to an almost perfect 13.1:1 all the way till redline.

Thanks for the info.
I always thought the ECU, even when modified, was programmed and tuned to dip into the 12's after ~5000 RPM's for safety reasons. I was always under the impression that 13.0 AFR at redline was not healthy at all (for NA or FI).
This is just for NA right? Because most of the tuned FI G/Z's ive seen dip into low 12's, high 11's after being properly tuned. I guess having that much power requires you to rich the mixture for the safety reasons (?) .
.
Originally Posted by skaterbasist
Thanks for the info.
I always thought the ECU, even when modified, was programmed and tuned to dip into the 12's after ~5000 RPM's for safety reasons. I was always under the impression that 13.0 AFR at redline was not healthy at all (for NA or FI).
This is just for NA right? Because most of the tuned FI G/Z's ive seen dip into low 12's, high 11's after being properly tuned. I guess having that much power requires you to rich the mixture for the safety reasons (?) .
.
I always thought the ECU, even when modified, was programmed and tuned to dip into the 12's after ~5000 RPM's for safety reasons. I was always under the impression that 13.0 AFR at redline was not healthy at all (for NA or FI).
This is just for NA right? Because most of the tuned FI G/Z's ive seen dip into low 12's, high 11's after being properly tuned. I guess having that much power requires you to rich the mixture for the safety reasons (?) .
.
One of these days I'll get around to posting some of my stock AFR logs (using my Zietronix WBO2) to show how "high" (14.7) the stock ecu tune keeps the AFR.
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iTrader: (2)
Joined: Apr 2005
Posts: 276
Likes: 13
From: Ft. Benning, TX; Atlanta, GA; Shelby, NC
Got my Osiris maps
Well, I wanted to throw in my 2 cents of UpRev's tuning solution...
BLUF: HIGH THUMBS. Great service, neato product and tool.
Jared sent me my 5 maps yesterday...while he was home sick, dedication to service. My car feels really smooth throughout acceleration. I have similar results as to what billybrun has already stated. Plus Cipher is a great tool that makes this product more competitive.
Sending Jared some logs soon. When I move to Ft. Hood next Feb. I'm going to have to stop by and thank them personally.
Thanks UpRev.
BLUF: HIGH THUMBS. Great service, neato product and tool.
Jared sent me my 5 maps yesterday...while he was home sick, dedication to service. My car feels really smooth throughout acceleration. I have similar results as to what billybrun has already stated. Plus Cipher is a great tool that makes this product more competitive.
Sending Jared some logs soon. When I move to Ft. Hood next Feb. I'm going to have to stop by and thank them personally.
Thanks UpRev.
Last edited by suprasam; Jul 18, 2007 at 09:19 PM.
Originally Posted by suprasam
Well, I wanted to throw in my 2 cents of UpRev's tuning solution...
BLUF: HIGH THUMBS. Great service, neato product and tool.
Jared sent me my 5 maps yesterday...while he was home sick, dedication to service. My car feels really smooth throughout acceleration. I have similar results as to what billybrun has already stated. Plus Cipher is a great tool that makes this product more competitive.
Sending Jared some logs soon. When I move to Ft. Hood next Feb. I'm going to have to stop by and thank them personally.
Thanks UpRev.
BLUF: HIGH THUMBS. Great service, neato product and tool.
Jared sent me my 5 maps yesterday...while he was home sick, dedication to service. My car feels really smooth throughout acceleration. I have similar results as to what billybrun has already stated. Plus Cipher is a great tool that makes this product more competitive.
Sending Jared some logs soon. When I move to Ft. Hood next Feb. I'm going to have to stop by and thank them personally.
Thanks UpRev.
Under what driving conditions do to gather/log data to be sent back to UpRev for further evaluation?
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iTrader: (2)
Joined: Apr 2005
Posts: 276
Likes: 13
From: Ft. Benning, TX; Atlanta, GA; Shelby, NC
This is what I got from Billybrun...the starter of this thread. He has already had finetuning done with Jared.
"i did a few 0-60 runs. Just take off a little aggressive and keep it floored the whole time. Remember that Jared tunes mainly WOT maps so keep it floored. I also gave him a second and third gear run as well. For that, start normal, shift to second and let the RPMs drop to 1000rpm then click log and floor it until you hit the rev limiter, do the same for third gear. Enjoy and be careful with cops.
-Billybrun
And here is the specific list of data thats needs to be captured...also from billy...from jared.
AFR (Make sure your ECU is set up in the wide band conversion. See Cipher user guide)
Accelerator position (either one)
Base fuel schedule
Calculated load
Coolant temp
Engine speed (RPM)
Ignition timing advance
Throttle position (either one)
"i did a few 0-60 runs. Just take off a little aggressive and keep it floored the whole time. Remember that Jared tunes mainly WOT maps so keep it floored. I also gave him a second and third gear run as well. For that, start normal, shift to second and let the RPMs drop to 1000rpm then click log and floor it until you hit the rev limiter, do the same for third gear. Enjoy and be careful with cops.
-Billybrun
And here is the specific list of data thats needs to be captured...also from billy...from jared.
AFR (Make sure your ECU is set up in the wide band conversion. See Cipher user guide)
Accelerator position (either one)
Base fuel schedule
Calculated load
Coolant temp
Engine speed (RPM)
Ignition timing advance
Throttle position (either one)
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