Test-N-Tune tomorrow **video added***** another update

The fact that the car launched straight this time does kinda point to the car's past launch "gymnastics" being a track prep problem at the time. More gear probably gave you the slightly better 60ft but you didn't mention what happened to the MPH on the other end with the gear change.

I would think a broke/rolled converter sprag (and/or destroyed stator) would make the car feel more "dead/lazy" at every point on the track pass to pass, than it would make the car wildly inconsistent pass to pass.

yeah called my dad and he said that the converter had been sent back to PTC when we changed over to the BBF, so not sure if that is the problem or what. The air was good Friday night when he ran somewhat close to what it was when he ran the 4.10 gear to a 6.14, 6.13 so now really sure why it would not pick up more than it did from the 4.10 to 4.86. I am not quite sure on what the MPH was the other night will have to find out tomorrow and see, just not sure why it is wildly inconsistent though and that is what is the most puzzled part of all this!

Thanks guys,
Doug

Talked to dad and he said it ran the 6.121 at 112.00 mph. He had leave chip at 4200 and was shifting at 6800. He said it went through the lights at 6800 also. Running at 28* timing and it has not been touched. We might take the car back out in a few weeks and work with the timing some and also work with the carb some and see if we can get some more out of her. Really wished we had some more weight to lose on the car that would get us another 100 pounds or so but besides doors everything else is pretty much fiberglass and lexan already! Might just have to either slow her back down to 7.00 or just go traveling and run some IHRA races or try to find some index races around with 6.40 or 6.50 indexes, and than just wait until we can afford to finish the other motor (514) just does not seem the 466 wants to run in the 5's.

later,
Doug

I take it that you don't like reg. bracket racing

Nope not really. I do not have the patience for it But neither does anyone else around this part of the world, our local track only has about 15 cars show up on regular bracket night and they are really starting to just push it off their program and the other tracks around us all run at least one weekend with heads-up classes, so in a month we could heads-up every weekend of the month at a different track, i just like leaving with someone else and going side-by-side on the track instead of trying to run down a 13.00 second crew cab truck or something like that!

Doug

index racing is much more fun IMO.................

I was just reading thru these posts and the first thing that comes to mind are slicks. How old are your slicks and how many passes are on them? I've seen this happen twice on my Dad's old car (Fox body with 4 link). Once with Goodyears and most recently with a set of Hoosiers. When the tires got too old one side started hooking better than the other. The car would turn right on launch and the 60 fts. became very inconsistent. We started looking at pre-load and everything else. Finally just put new tires on it and it started going straight as an arrow again. It was going straight last year but at the beginning of this year is started turning on launch. Put a new set of Hoosiers on it and it started going straight again. Just a thought.

yeah we really need a new set of slicks on the car just cannot afford them right now. The tires are probably 4-5 seasons old and we had to switch back to our old set. We bought a used set of Phoenix slicks but they just would not hook at all and would not smoke much either, so we put the old slicks back on the car for this past test-n-tune. We had a set of new slicks off ebay the other day but got outbid at the last moment, but we really need to get a new set soon as I think that will help pick the car up a little also!

Doug

If in fact the slicks are dead, then any more track testing, brain storming, or speculating is pretty much a waste of time until you get new shoes.

But if they are still good, and you know they do actually hook (from video evidence, not a "seat of the pants" feeling) then you can move on to other possible causes for the inconsistency.

took the car out Friday night for another T-N-T. Changed from old slicks to a set of new slicks went from 13x31 to 29.5x13.5. Here are the 4 passes for the night. We never changed the timing set at 30. We had ran quite a bit of different timing last couple of times out and it would slow down at 29 and 31 so 30 seemed right. 330ft was broke for the night at the track.

60ft 594 660et 660mph
1. 7.5lbs in slicks 1.321 5.650 6.040 115.35
2. 7.5lbs in slicks 1.350 5.660 6.050 115.14
3. 9lbs in slicks 1.341 5.671 6.063 114.79
4. 8 lbs in slick 1.341 5.677 6.069 115.06

Overall the best times the car has ever ran but we are tired of chasing this thing and wasting time to actually get to run, so we are going to try and change over to Alky and the car should run the 6 index class easily!

thanks,
Doug