![]() Upon talking to the Cobb tech, he indicated the readout is based upon the narrowband 02 sensors of the car and would not be accurate but would be consistent for each vehicle. Only made two dyno passes (#9 and #10) as it was a learn vs a tune session, but the fuel/air readout on the Cobb Accessport is not accurate. It appears the car has learned in the 7500-8000 rpm segment and has picked quite a bit of power vs the fresh tune. SAE the car made 312 so either the car picked up 7 hp or it's a difference in dynos. Note this is std hp and not SAE as per the first Cobb dyno sheet. Dyno sheets below.ģ70Z RPM run #10 - 317 rwhp std picture by dennylmclain - Photobucket A weather front came through the night before so I made a bee line to the original dyno (RPM in Lewisville TX) to get a better feeling for exactly what is going on with the car. Basically ran out to time yesterday but will call them again Monday and let them troubleshoot the issue.Īlso. Lucky enough to have another laptop using Vista 32 and it will not load on that either. They do not have the software ready for Vista 64 yet. The first issue is both my main computer and main laptop are Vista 64. I was on the phone with Cobb three times yesterday and it's the tuning program that is still not installing. The only thing I've done is just flashed it with the Cobb 370Z stock basemap. I've yet to do any actual tuning with it though. I have had no issues getting my computer to recognize the AccessPort and I've even viewed some data logs that I created from driving around town. The rule of thumb is 1% hp increase in hp for every 10 degrees of lower intake temps.Ībout time the big dog smelled where home was and is going in the right direction at least. Sounds like one part of the acid test to see how effective these various intakes are. I'd be very interested to see what others with the stock intake are seeing in comparison to ambient temps. With the ambient temp of 97 degrees after a bit of driving through the local hood, the lowest reading I got was 108. Something else I may try and verify on the dyno as in the past, I've done more harm than good trying to do a rolling tune.Īlso found the air intake temp pretty handy. Once the parameters for AFR that the car responds most to are public knowledge, all you need to do is log the runs and make the corrections with the programming software. If it is accurate, I'd say most people could do a half way decent driving tune. ![]() I'll log it and double check it for accuracy with the talepipe windband 02 the next time I dyno. My Vette is also off) and at an indicated 8300 to 8400 rpm, it hits the rev limit of 8000.Ī feature I didn't realize it had was fuel/air ratio readings. At a showing of 5000 rpm the car really is at 4800 rpm (typical of most cars. It answered one question real easy.the tach is off on the cars. Damn handy tool is all I'll say and I'd probably buy one just for the others things it does. Was in MI all last week for the Woodward Avenue Dream Cruise (absolute off the scale hoot) so I hadn't had a chance to play with it plugged into the car. That I should get again tomorrow and see if I can figure it out. After redownloading the software, everything except for the tuning software is working correctly. Anyway, Sharif (Forged Performance) is a Cobb Pro-Tuner and might be able to help.Įnded up calling Cobb in Plano and they directed me to Dan in Utah. Sharif wanted to do mine with Cobb, but I decided to hold off and wait to see what UpRev releases. You might want to try sending a PM to Sharif to see if he has any advice.
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