...I need a dyno tune bad.



As you can see the A/F bottoms out between 4000 & 4500 rpms and this was on the leanest tune I had. Also, my torque is in the dump. The last time I was at the dyno it put 477 ft-lbs down(though that is still low for the mods).

My plan now is to go to Dynospeed Racing in Memphis April 8th and have them work their magic. Untile then I just have to live with this.

 

That looks like one of the flatest torque curves I've seen, what have you done since the last dyno?

 

you're joking right?

 

I had my truck on the dyno at total performance before they moved and my sheet looked nearly identical to that with only less power. I think those guys just have problems, just about everyone seems to be super lean when they use their wideband. I would go somewhere else before I worried too much.

 

Yep

 

 

way too rich in the mid range!!!! Loosing Gobs of torque!!!

 

Big Man buy or borrow a wideband and check pre cat . I know that Total Performance's tailpipe sniffer has been blown out of a drag cars header and went under the slick which put it into the wall real hard and I am unsure if they have ever calibrated it. I would get another check before assuming its that rich, I would think gas would be dripping out at that level. Get an O2 bung welded in and drive back up here and we can put my LM1 on it if we have to. I am in Newburgh just east of evansville.You can have a bung welded in in Eville at Performance exhaust for $20.

 

Yeah that sniffer looked like its been through hell many times over. I'll be heading to DynoSpeed Racing in Memphis a week from Saturday for some tuning.

Wheres Performance Exhaust at? I have a few other things I need done on my exhaust.