:sonicjay: we learned a bit since that photo about e85 afr and ignition timing. It's even crazier now. Hoping to get to the track soon. Lots of those marks within a few radius of my house trying to dial it in :sonicjay:
Took the car out to Gladwin Michigan for "thunder on the strip". They shut down the airport and run a 1/8 on the taxi runway. It was pretty cool, felt very nostalgic.
I met up with a guy from a local Facebook group for some races. He had a p71 that was pretty well gutted, 150 shot, drag slicks, 4.56s etc hes setup to run 1/8 pretty well. He took me to school at every light lol. I was trying to work on my 60' which I suffer at. Unfortunately they weren't tracking that on the time slips. But the first race I only launched at 1 psi, then the 2nd and 3rd around 4-6 and spun each time.
Well I got my goal, went to the track last night. Launched at 11psi and cut a 1.56 60' , seemed to hold and not spin. Hitt a peak of 18psi on the pull. But I was banging on the rev limiter top of 3rd at the end of the track. Track officials made a trip by me in the pits and gave me a warning for being to fast w/o a cage.
So I made some adjustments in the tune, raised the rpm shift point of the 2-3, and raised the rev limiter a couple hundred to drive and keep it off the rev limiter. Also bumped peak boost to 20-21psi. Unfortunately, my next pass the track didn't hold the launch and I spun. Got out of it, got back into it to the 1/8th then coasted to the 1/4, still ran a 14 sec lol. Then my fourth and final pass, I launched at 11 psi again and my yukon duragrip blew apart . Specifically the two smaller spiders gears broken in half.
Shock loaded the drive train, so I'm gonna pull the trans as well and have it gone through for inspection. Car has 4.10s in it, they appear to have survived, but I have a set of 3.55's on the shelf I've been meaning to put in. Guess now is a good time. But I need to decide what direction to go for a new carrier.
Update, I purchased FRP 3.55's to replace the 4.10s. And A tru-trac to replace the duragrip. I've nothing but trouble trying to get the gears installed and set up correctly. Was doing it at home on jackstands, and with my wrecked back it was hell. I need to get the car out of the garage one way or another. So I just tossed them in sloppy after several hrs of messing around with them, to get it to move. That was a two weeks or so ago.
Yesterday I trailed it to a buddies who has a hoist to reset the gears, still, after hrs cannot get a good pattern. Ended up calling it a day yesterday after my back started to flare up. Can only take that carrier in and out so many times. I've set up way more then my share over the years, idk whats going on with this setup. The FRP 4.10s damn near dropped in perfect first try.
I also pulled the 4l80 out and had it gone through to make sure there was no collateral damage from the locker failure (shock load), we found nothing damaged. That was a relief.
2019-12-25_10-00-36 by Cheapthrillb2, on Flickr
Don't have a lot of winter plans for the car, probably change up the exhaust again. Run it out the back to mimic stock, and replace the boost valve with a electric cutout instead. Most my attention will be out towards the jeep this winter.
I did pick up a new daily driver/commuter car ( I hate driving my truck in the salt). Drove from Grand Rapids MI to Cincinnati OH and bout a 2004 Town Car ultimate with 70K on it. Was looking for a dark blue ext and black interior but those are apparently like unicorns. Spent two months looking and only found two and both weren't in the best of shape. Settled for a silver birch ext and black interior