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Author Topic:   Mid-turn drifter, part 3
tilley88
Dirt Forum Champ
Total posts: 879
posted April 16, 2005 08:51 AM  
Finally got the car on the track last nite and what a disappointment. In the heat the thing was bouncing in the rear, and just not laying over on the RR. During intermission, I found the RR slider was rubbing the spring cup on top the rear so I trimmed that up, put in a new slider on the RR, and changed the LR shock from a 4010 to a 3030. That helped some in the feature(actually started getting a little rear steer and LR throttle lift), but it still was'nt rolling over very much. I'm gonna tear apart my rear suspension and look for a bind, and put in the softer springs(175-150). During the feature it also felt like something in the front end was getting real loose and sloppy, and the tranny started making a whining noise, so I've got a lot of wrenching to do. Good thing I've got the next 2 Friday's off to race.

tilley88
Dirt Forum Champ
Total posts: 879
posted April 17, 2005 09:55 PM  
Update- Switched the LR spring to a 175(on a slider), put a 150 on top the RR, both rear shocks are now 3030, will be switching front shocks to 4545 LF, 5555 RF. In the process of putting on a dual plane air-gap intake AND adding about 40 points of rear gear. Like a dummy, I forgot to mention(because I forgot about it myself) that I raised alot of the main weight in the chassis as I was putting it together-raised the motor 3/4", raised the seat 4", turned the fuel cell longways and mounted all the way to the left and raised it 7-8", moved the battery 3 foot to the rear and raised it 8-10". Will be moving that 50 lb lead weight to the RR, high. I'm also gonna even up the front stagger and lower the ride heights back to where they were. I got to thinkin' about it and figured I lost forward bite because I took out angle in the pullbar when I raised the ride heights in the rear. With all that mass up high I should'nt need that much height. As far as the "skating", I believe it was caused by too much stagger in the rear. Wholesale changes, again!

tilley88
Dirt Forum Champ
Total posts: 879
posted April 17, 2005 09:59 PM  
Oh, yeah, LF ball joints and wheel bearing were loose, and steering box had tons of slop in it. Changing box and tranny, too.

Mastersbilt05
Dirt Roller

Total posts: 21
posted April 20, 2005 11:20 PM  
When I hear people talking about their car not rolling I start thinking about what someone told me one time. Why do you care if the car is rolling over or not. I thought about that for so long and how it made any sense to me. I guess it might be right. I dont really ever see Bloomquist car all hiked up and rolling over. If you think about it this person might have a point.

tilley88
Dirt Forum Champ
Total posts: 879
posted April 22, 2005 12:04 PM  
Hmmmmmm.......

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted April 22, 2005 12:25 PM  
Keep in mind 'bodyroll' and weight transfer are 2 different things, sometimes you'll have one without the other. Ideally you want weight transfer for sidebite in the corner, whether you get the body roll is a driver preference thing. Body roll a lot of times is just a by product of getting the car to stick. Generally when I hear someone say its not 'rolling' I assume they mean not sticking, or transferring weight.

Only exception is on some of the car like the 4 links sometimes you need the body roll to manipulate the suspension to make it work.

CCGRT9s
Dirt Full Roller

Total posts: 31
posted April 22, 2005 04:05 PM  
Body roll to make 4-bar/ rearsteer work. Weight will transfer no matter what. Even a go kart with no suspension transfers weight.

trasrat89
Dirt Full Roller

Total posts: 46
posted April 23, 2005 05:40 AM  
The fastest car in our b-mod class looks like it's got a solid suspension. No roll, no lift, but fast as heck.

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