what would cause a truck to just be slower all the sudden. last month i ran 0-60 in 7.4 seconds now im high 9s low 10s. I replaced the ball joint cv shaft and took it to the shop and the radiator got replaced. It was slolwer ever since i got it back from the shop. I have no idea what happend. i retuned my SC also.

 

Heat, humidity, changes in fuel, etc are all factors that can affect your acceleration.

 

i didnt think it could be effected that much. it is completly noticable it doesnt pick up as fast its a god untill 3000 rpms and then you feel it kick in.

 

http://www.zx11.info/zx11/aero.htm
http://www.staginglight.com/guide/air.html

 

i hate hot weather...

 

Using AC? That has alot to do with it also

 

yea i just realised thought about that i can finaly use my ac since it came back from the shop so thats all iv been using haha

 

My truck has never done 0-60 in less than 8.5 seconds.

 

i got it to do 7.9 today with wheel spin...idk why you cant get your truck to run like that rengnath, when was the last time you checked your 0-60 after the trans update?

 

I ran the last one a couple weeks ago with the TM reduced, and I believe I got 8.79 or something high like that. Ill run one this week sometime. I just installed the stock throttle body because of a vacuum leak with the old one, so after I run the truck a couple hundred miles for the pcm to relearn Ill give it another go.