[2018ZL1]

Originally Posted by meSSohappy

Personal best on race fuel. Several runs tonight but can’t below 1.7 60ft. Car runs well. Shifts hard. Feels like it could transfer power faster off the line. Tried diff PTM modes and TC options. Dont seem to make much difference. More practice but very happy with build.

What kind of rear tires are you using? I turn off ALL of the nannies and let her eat! I'm on a 17 inch drag radial with a 1.42 60 foot. Did you have the TCM unlocked and tuned? I think this makes a BIG difference!

[meSSohappy]

Originally Posted by 2018ZL1

What kind of rear tires are you using? I turn off ALL of the nannies and let her eat! I'm on a 17 inch drag radial with a 1.42 60 foot. Did you have the TCM unlocked and tuned? I think this makes a BIG difference!

Using 20” MT ET DRs. TCM not unlocked. All nannies off.

[meSSohappy]

Originally Posted by 2018ZL1

I don't think that has anything to do with not having a catch can. I know one thing that was a major PITA was getting that dipstick tube back in after the headers were installed! It presses in with a couple of O rings.. could be that. Any sign of oil under the car?

No leaks under car. No drips or signs of oil in engine bay or on exhaust. Dipstick is sealed. Smell is more frequent now. Thoughts???

[2018ZL1]

Originally Posted by meSSohappy

No leaks under car. No drips or signs of oil in engine bay or on exhaust. Dipstick is sealed. Smell is more frequent now. Thoughts???

Well... something is leaking! sounds like you need to get it on a lift and start looking around. I would pay most attention to what was added/changed, I think that is where the problem is.