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Author Topic:   Finally (advice needed)...
msnead
Dirt Forum Racer

Total posts: 77
posted June 27, 2005 10:12 AM  
We have recently purchased a used 2004 DW9 with a 4LR/ZRR setup. (Slider on the LR, spring on top of the rear end on the right.)

I had the car scaled/set up by a local builder and everything seemed to be in order according to DW's setup sheets.

My questions are:

1. The guy who set it up put the baseline DW setup on the car. When we bought the car, I was told by the seller that the DW baseline setups don't work. Is this true? If so, then why do they publish them?

2. We race on a fast 1/2 mile track with 2 distinct turns...one is pretty tight and the other is a wide sweeping turn. What is the best way to set up the car for 2 different turns? I'm assuming that there is some compromise that takes place...?

3. Do you have any advice for a driver who has never driven a dirt modified before? He has driven on asphalt... I know there is a ton of differences. All of you were new at one time--what advice can you give?

I will have the "numbers" from our setup when I get home from work...I may post them on here and see what you think.

Thanks in advance for your help and support...

m

Kromulous
Dirt Forum Champ
Total posts: 796
posted June 27, 2005 10:28 AM  
Wow that sounds like Florence speedway in Union Ky. Its egged shaped something fierce.

Anyway, with a new driver i would start out with a car thats pretty nuetral and easier to drive and allow him to get some seat time.

As for the DW9's i have heard of some issues with them cars, and some dont like em. There are a few on here that should be able to get you dialed in.

Post your springs, shocks, bar angles, pull bar angles and scale weights and someone should be able to get you close.

rpm20
Dirt Freak

Total posts: 338
posted June 27, 2005 10:37 AM  
i found with my dw8 that dw setup was a bit tight and pushy.
i would loosen it up by using 4" offsets on both left wheels and 3" offsets on both rights then add a spacer to the rr at least 1/2" , then start witha j bar and put frame side at 7" and the pinion side at or a touch above center.
then tune it to be tighter to your liking from there.
i also run 2-3" of rear stagger, sometimes more
lr spring behind and rr on the swingarm. 225lr and 250rr.
that will get you close.
dont go over 15-17* up on the top lr bar or it will pogo. at least not to start ...it makes it too tight on the gas.
lrl bar 5-10* up lru bar 15* up
rrl 10* up and rru bar level or 5* up to rear.

wfoondirt
Dirt Forum Champ
Total posts: 505
posted June 27, 2005 10:57 AM  
quote:
Originally posted by msnead:


2. We race on a fast 1/2 mile track with 2 distinct turns...one is pretty tight and the other is a wide sweeping turn. What is the best way to set up the car for 2 different turns? I'm assuming that there is some compromise that takes place...?


I would setup for the sweeping turn since it would allow you to carry the most momentum.

As Krom mentioned I try to keep the car to the neutral to loose side for new drivers. I've always felt asphault drivers are better drivers and dirt drivers are better racers. He will probably need time to get comfortable racing side by side lap after lap. As long as the track slicks off he should do good since he will be driving more like asphault. If its tacky it might take time to get used to "backing" the car in. Also it make take time to get used to the brakes, dirt cars tend to not use as much brake as their paved counterparts. I would get the car as free as possible and let him get used to it and go from there.


msnead
Dirt Forum Racer

Total posts: 77
posted June 27, 2005 12:56 PM  
Since this was a used car, the wheels on it were pretty bad. We basically had to start over and buy all new wheels. With that said, we went with the DW suggestion to run 4" BS wheels on the LF/RR and 3" on the RF/LR. (I called and double-checked with DW and that is what they told me to buy.) We have some old wheels but I don't know what BS they are.

Since the bead-lock I have is a 4" BS, is there another way to free up the car without changing the backspacing of the wheels?

Since this car has never seen the track--how will I know how to set it up to be neutral? (Keep in mind that my only modified experience has been helping a friend with his 4-bar car for the past few months.)

I will post as much information as I can about the current setup that is on the car tomorrow.

One thing I forgot to mention is that we run on Hoosier D40 or A40 tires. (We can only run those 2 compounds.)

Thanks for all of the posts!!!

m

rpm20
Dirt Freak

Total posts: 338
posted June 27, 2005 01:32 PM  
long studs on the rr and 1" spacer will get you there.

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