It's a new issue to me at this point so I am trying to figure out how far it's gone. I have not received any reports from customer service on the issue so I assume it is isolated.

Scott

 

Well I am not real confident in the update that finaly got uploaded to my programer on the third attempt. So I dont think that I am even going to try and program my truck at this point.

 

Can anyone explain, in layman's terms, the difference in the 'performance' and the 'tow' mode tuning on my Cortex programmer? I havent taken it out and run times and all that, but I really dont see/feel a difference between them just driving on the street. Thanks.

 

Tow has less agressive timing and trans line pressure/shift point adjustments than the 91 perf file.

Scott

 

I appreciate the fast response Scott. I was looking for a little more clarity.
Like what do you mean by "less agressive timing and trans line pressure/shift point adjustments"?
Does the tow mode shift the trans sooner/quicker to keep the rpm's higher?

 

Ok, I confirmed with engineering that onlu timing was changed between the two settings to reduct detonation under load. Trans settings are the same between the two.

Scott

 

Thanks Scott.
That's interesting. seeing as Ramhunter says he feels more low end torque in the 'tow' setting. When, in fact, there is no difference in trans shift points/line pressure.

I would be curious to know the difference between stock and the 'perf' file.

 

i went round and round with the SC tecs and they never could figure it out . my performance tune felt like stock to the T . that is why i run tow tune i feel a tune when im in that mode ..man i wish i could get my money back !!!! can only use tow or 89 because performance tune sucks . in mine anyway.

 

What is available for the V 10 from Superchips. I havent had much luck finding anything.

 

Don't they offer your money back if you are not impressed by the performance gains? You should contact them and see.