Hot weather tune up?

[A/Fuel]

The chassis worked fine, every move to put more power in by increasing the timing it just slipped the clutch more in that area. The engine would go up 200-300 rpm but the drive shaft would flat line like a step and the g-meter was showing the samething. Every lap we added more weight to the clutch but also added timing, it just seemed that we were a little behind on the weight compared to the timing.

[TC]

The chassis worked fine, every move to put more power in by increasing the timing it just slipped the clutch more in that area. The engine would go up 200-300 rpm but the drive shaft would flat line like a step and the g-meter was showing the samething. Every lap we added more weight to the clutch but also added timing, it just seemed that we were a little behind on the weight compared to the timing.

So your saying that maybe you should of went up in weight on the clutch and kept the timing the same?? Sounds like the way to go or at least give it a run to see what happens...... And how about a lesser percentage of Nitro??

[A/Fuel]

Well....30 grams makes a difference in one of these cars and we left that place with well over 100 grams than when we got there.
I was talking to Gene Snow before the last round of qualifying and he said his car was doing the samething and he was stacking weight too. I was running out of room for more, even using mallory. Droping the percentage would have just made it run out the back door slower here. The air was good and the track was even better.....or should I say cooler. I just came off tracks that were 150+ and the car I was on in Seattle was a turd. You go into a track deciding which side if you error is it going to be on. Then you hit a track thats 88-110 degrees....a 5.39 wasn't to bad that car, it slowed to a 5.45 in rd 3, but by 1st round of eliminations it ran a 5.41, it was 222 mph by the 1/8th mile and had a .950 60 ft. On the 5.39 run it had a .970 60ft and was at 218 mph in the 1/8th.
We ran a 5.41 and Chase beat us with a 5.47, so I didn't look at the computer much.....I just packed up and left.

It also started out with 75 rockwell disks and I was at the lowest we had on the trailer by rd 1. 68.

[dieselgeek]

Scott, can you PM me a phone numer to reach you? just spent a few minutes with Gene and he shared some advice that might be helpful on ignition tuning for nhra a/fulers.

[A/Fuel]

I just did.
A few days ago we took our mags to the MSD trailer to see what the internal phasing was, one of them just needed a new shaft and the other one needed to be shipped back because one of the screws were stripped and they couldn't take it appart at the track. They couldn't tell us anything until they get it appart. So we have one good one we know for sure now.

[TC]

I just did.
A few days ago we took our mags to the MSD trailer to see what the internal phasing was, one of them just needed a new shaft and the other one needed to be shipped back because one of the screws were stripped and they couldn't take it appart at the track. They couldn't tell us anything until they get it appart. So we have one good one we know for sure now.

Sell the old mags, get new ones........

[A/Fuel]

I can borrow one, that's not a problem. We were rained out, and it's sitting in the trailer right now at Indy. That's a project for next week. They are about $2500 new then we send them somewhere else to be tested for more cash, and it takes time too.

[A/Fuel]

Maybe this will answer some questions on timing.
We were just trying to run a 5.50. Seeing as we were the second dragster, and first fuel car to run down the track, we had no idea what it was going to be like. We had Jerry's car behind us so we could maybe we could adjust on that car, and Robin was way back and had plenty of time. We were going to leave at around 53 and have 60 by .9, 65 by 2.0.....That should be nice and easy, without shaking. Well the wrong button was pressed on the controller, so by .2 seconds it had 60. Usually by .250 seconds the engine went from 2800 rpm to 5100. This time it went right past 5100 to about 7200 and into tire smoke. As the the engine went past 5300 the drive shaft started going with it. It was making it right up until then. It was on the wheelie bar, the tires were nice and wadded and the front was in the air. I would say it needed 55 now to keep it all going as it starts to get up on the tire. Instead it had 60, as the rpm kept going up the fingers in the clutch came out farther and the whole thing just locked up. If it went the wrong way and just stayed at 53 it probably would have started to shake as it tried to get up on the tire. We've waited to long to make a change there before and this chassis is like a noodle. It gets arched too much, engine runs out of steam, and it starts shaking breaking every mount on the car. The window with this car is very tight, and it can lead to disaster if you miss it. This was the last race on that car, I stripped it and stuffed it in the trailer yesterday, I won't miss that car. I wanted to take a sawsall to it so no one else has to go through the problems I have with that thing.

[TC]

This was the last race on that car, I stripped it and stuffed it in the trailer yesterday, I won't miss that car. I wanted to take a sawsall to it so no one else has to go through the problems I have with that thing.

Didn't I tell you months ago that you probably need a better chassis........

When you've tried everything and you can't get it to work, it's time for a better chassis......Hope the next one does the job!!!.,.......

[A/Fuel]

Thats a different car! My first race with this car was in Tusla, Ok. This car was a junk pile from the get go, it was all we had to work with. The new car will be at Charlotte this week, Doug Fowley is going to drive it. I'll only be working on two cars this weekend.