I took my a4 t/a to the track on reg. gas. And the best i got out of it was a 14.1, now i go back into town they tell me to run 91. I know i should have ran that the whole time anyway...but you think it could drop me down into the mid 13's just by gas? and i didnt have a lid yet either but iono if that helps a whole hell of alot but info plz and thank you...

 

if you mean 87 as being regular, yeah you are probably missing out on a BIT of performance in the way of the pcm retarding your timing a bit. Id say ONLY use premium(91+) even day to day, your LS1 likes that **** and stone cold says so(ur owners manual). Should be in the 13s either which way tho considerin its an auto, refuel and go again!

 

What was your trap speed?

 

the car has got a damn sticker on the fuel door that says premium only, duh!

 

Damn easy like i said its my first v8 my bad dude...trap was 99

 

its not about a v8...have you ever owned a CAR? every car requires different things. you need to know the basic requirements of a car, especially if you plan to race it.

 

99mph trap speed?! what was your 60'