I have a 97 stock gt auto and looking for some advice for upgrades to beat a trans am? I dont want to do nitrious so could somebody share some info. Thanks
He doesn't need 375 rwhp to beat a stock LS1 Trans-am. They are only putting 290-300 at the wheels so that is what he is going to need. He is actually closer to 185 rwhp right now.speedytang said:You need 375 whp to have a chance since your a automatic and you won't even get that with a supercharger without running 14-16psi. Your at probably 165 whp now.
An auto is only going to slow him down in the 1/4 by about 3-5 tenths, less if he has a handheld tuner and a higher stall converter. You underestimate automatics.speedytang said:With a Automatic he is going to need every bit of 375 whp if the Trans am is a 6 speed.
Don't give the guy false dreams because he need to put $3k in that car to even match a stock Trans Am.
about a month ago, I sold my 98 GT and got my fabulous new 02. Completely stock you can tell a big difference between the two and with the bolt-ons that I have added it makes a huge difference. The 99+ 4.6 responds way better to bolt-on adjustments due to the heads. IMO it would be better to get yourself and a 99+ because you would have to spend $2000 just to get equal and then much more to get more performance.mattbachota said:Thanks for all of your help. I planned on putting $2000 at the start but from all this it seems i might be putting more. Would it be a better investment if i sold my car and got a 99+ or a cobra?