The UPR tensioner idler pulley you sold me seems to have worked. Went out to PIR Saturday night and ran till they closed due to rain. Got 7 runs in and that is with a Predator tuning change. There were only about 8 cars running....
My best was a 12.6 @ 113 mph with a 2.1 60' time. Track was cold, tires would get wet, and they didn't lay any VHT, so launches were crap and ET's showed accordingly. I was only looking for mph this time though. OMG, I sound like a Supra owner.......
Last couple times out all I could get was 110 mph so I figured the non slip pulley was slipping at the top end. Looks like I was right. It may have also wore down the belt and probably does not grip as well as possible. I will put the Lightning pulley or consider going to a 2.8 or lower.....
I'm still debating the Apten and it has to go back to the dealer one of these days due to rear end "tink" noise AGAIN! 
Soooooooo, I have to put the stock pulley back on, and, for those who don't know, I have a dent to fix. 
All this and my paint scheme makes the next few weeks very busy for the Cobra. 
My best was a 12.6 @ 113 mph with a 2.1 60' time. Track was cold, tires would get wet, and they didn't lay any VHT, so launches were crap and ET's showed accordingly. I was only looking for mph this time though. OMG, I sound like a Supra owner.......
Last couple times out all I could get was 110 mph so I figured the non slip pulley was slipping at the top end. Looks like I was right. It may have also wore down the belt and probably does not grip as well as possible. I will put the Lightning pulley or consider going to a 2.8 or lower.....
I'm still debating the Apten and it has to go back to the dealer one of these days due to rear end "tink" noise AGAIN! All this and my paint scheme makes the next few weeks very busy for the Cobra. 
