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Author Topic:   Help with bite on dry track.
ModMan43
Member
posted September 04, 2003 08:15 AM
I have a dw7 and cannot get any tracktion when the track drys out just a little bit. I am very fast when the track is wet and heavy. I have a 650 750
200 150 springs

In the rear it is a 3 link with a shorty bar. The left trailing arm is a short arm connected to a bracket with two holes. It is in the top hole of each. The passenger side has a long trailing arm located in the top hole on rearend and chassis. In the pull bar I run a 600 spring. This is on a 1/3 mile semi banked track. I don't get any body roll unless the track is wet and car is hooking up. My rear tire temps were about 30 degrees different last week. The right rear was 138 and the driver rear was at 112.
Thanks


2nd2none
Member
posted September 04, 2003 02:55 PM
With the info you gave i'd say you need more rear %. What are your percentages now? cross/left/rear


ModMan43
Member
posted September 04, 2003 06:10 PM
My percentages are 53.2%left, 52.1% cross and 54.5% rear. I added about 80 of weight to the rear one night and it made no difference at all. Do you think I should keep adding more? Thanks


2nd2none
Member
posted September 04, 2003 11:56 PM
YES, that rear percent needs to be up to 58% minimum. You might not notice it on the heavy tracks because anything and anyone is fast on heavy tracks, wait till you go dry/slick then you see the difference


ModMan43
Member
posted September 07, 2003 05:46 PM
Thanks for all of the help. I am sure it will make some kind of difference. Thanks


Ex President
Member
posted September 07, 2003 11:04 PM
Did you solve your problem? If not, tell me this....

How does the car drive through the corner? Does it drive well every where, and then have no forward bite, or is it just loose all the time?

ModMan43
Member
posted September 08, 2003 04:45 PM
My car worked a ton better but not exactly where I wanted it. What I did was bumped the rear % up a little and lead the right rear a little more. Car stuck a ton better just that it doesn't roll over. It was still loose from entry to exit but about half as bad. I think that next I am going to add a little more rear and adjust my adjusters so I have more bite in the car. We will just have to see what happens.


2nd2none
Member
posted September 08, 2003 05:04 PM
I tried to run the short link 15" on the left side, and the long link 21" on the right earlier this year and didnt like it. Car felt loose to me all way around the track so i went back to short links on both sides. something else you might think about.

what are the measurements on your short panhard bar? I ran mine bottom hole on pinion and 8" up on frame, had tons of side bite and alot of 3 wheel motion

tdevans
Member
posted September 08, 2003 09:30 PM
My short panhard bar is in the second from bottom on the pinion and about 6 inches up from the bottom of the tube. The bar is only about 10 inches long. I am not sure how much higher I can go on the tube without the bar going all the way around and wrecking something. You would think that is should make the car roll over maybe just a little but nothing. It is totally flat.


2nd2none
Member
posted September 09, 2003 03:29 PM
Have you checked to make sure nothing was bound up?


ModMan43
Member
posted September 10, 2003 11:21 AM
The only thing that might be bound up on the car is that the spring in the pullbar slides down onto the metal spacers in the middle and rubs on them just a little. Would that make any difference? How do you stop that from happening? Other than that there is nothing that I can find.