06Silverad04.8

Hello everyone. Need some help I currently have 06 silverado 4.8 aem brute force intake, jba shorty headers, flow master, and corvette servo. My friend gave me his hypertech and I tuned it for 87 octane for now and after market tires, 25% shiftfiness. My question is will messing with the firmness be bad for my transmission since I already have the corvette servo? I didn't really mess with anything else since I don't know what really to do. I.e. Shift points and all that. Thank you for your help

Chevy_King1500

iTrader: (7)

don't get too aggressive with the trans tuning. keeping the 60e cool is the biggest thing. look up tru cool 40k

also look at the site sponsors for a custom tune or a local tuner

welcome to the site! this hobby is expensive

06Silverad04.8

Ok I will look into that. so leaving the firmness at 25% with servo is ok?

Saving up cash for the black bear tune!!

Thank you! Tell me about it

69Camaro427

Welcome! I have been reading some people say 50% is fine and others say 100% is okay, personally I wouldn't take it above 50%

For the rev limiter, if you are able to choose I would have 1-2 shift at 6000 you can go to 6200, but I would NOT go any higher than that with the stock cam and weak valve springs, plus the power starts to fall on its face around 6000 rpms

69Camaro427

I had a superchip programer many years ago before I knew anything and didn't notice hardly any difference between 87 tune and performance tune.

06Silverad04.8

Thank for your advice! I will look into tuning the rev