shots from the garage...
It was great being back in the car and right out of the box I cut an .018 light, but they got progressively worse every time I went up and on Sunday we lost in R3 due to that trend.
An interesting occurrence was that on our first test pass friday was the car felt “weird”. Came up on the 3800 chip fine but when the car left it went straight out and the normal instantaneous shift light actually took some time. Got back to the trailer we had a horrid 1.399 60 time. My crew guy indicated no spin and it certainly didn’t feel like it…. it just felt lazy. Mph wasn’t too bad, off a couple numbers. For the next pass I got the Racepak up and running. We don’t pull data much anymore as between laptop issues and RP issues it’s kind of a pita, but pass 1 was an excellent reason as why we should. Pass two was a similar launch and what we found was suddenly we have a 4750 stall converter. Normally I’d point a finger at the magical coupling device, but the unit worked fine in our old trans. I simply moved it to the new unit….. with one exception. We changed transmission fluid. I’ve run ATF+4 for ever as it’s available cheap at work. This go round I switched to LAT Pro ATF which has a 30 weight viscosity rating. Now I’m not certain of the rating on the +4, but as an experiment on warm up for pass 3 I got up on the tbrake a few times and got the trans temp up. 1.29 60….. , next pass 1.27. Stall speed is still lower but the car came back some. Prepping the car for Pomona this coming weekend and I’m currently draining the trans and will go back to +4 just to see if that will get my flash back. Should be 5800-6k.