I have a bone stock z28 automatic with 150,000 miles and took it to the dyno last Friday and pulled 295.2 rwtq 257.1 rwhp and that was on a dynojet. My track times last Wednesday with the outside temp around 85 deg and high humidity were 2.033 60ft 9.113 1/8th @ 76.7mph with stock tires. Does this sound about right for a stock lt1? I have only had this car for about a year now and I have no clue if the person who owned this car before me had any internal work done to the motor.

Thanks

 

rwhp seems pretty much close to stock

 

Your numbers are like 15-25 rwhp off. If it is stock, with 150K miles, your car is a good running car still.

Bone stock my car ran 1/8 9.097@77.99 MPH and it might have been lucky to make 235 rwhp.

 

The HP and TQ, are quite high for a stock A4, but you are not "bone stock" like you say. !cat and an aftermarket muffer are probably good for about 12 rwhp. Your numbers look right.

Stock M6's dyno around 255 rwhp/290 rwtq and A4's dyno about 245 rwhp

Dan

 

Thanks for the replys, One more question. I am thinking about going with a bigger cam, 1.6rr and lt headers, how well built is the lt1 bottom end and will it hold up with 150,000 on it?l