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Author Topic:   rear bite
billyjean23
Dirt Roller

Total posts: 10
posted August 19, 2002 08:47 PM
We have always ran somewhere between 0-65 pounds of left rear bite. Currenty running around 45. The car is fast through the corner, but has a hard time getting off of the corner. I hear of alot of people running around 120 pounds of left bite. We have never went above 60 pounds. What will happen if we go up around 100 pounds.

dirtbuster
Dirt Maniac

Total posts: 106
posted August 20, 2002 09:21 AM
I dont know what kind of car or suspension you run but we have found that on our dw 2 link we get along better with 20# bite instead of 100#. One thing to look for is if you get your right front wheel weighing heavier than the left front it will make the car hard to turn. That is why some guys will swap their front springs side to side and put the softer one in the RF.

billyjean23
Dirt Roller

Total posts: 10
posted August 20, 2002 09:57 AM
dirtbuster, we are running a dw8 2-link. Our right front is about 40 or 50 lbs. heavier that the left front. Do you think this is enough to where we should swap front springs? Currently running LF=650 RF=750 LR=225 RR=175. Also wondering anyones thought on the 90-10. We are currently running one with our biscuit bar. My question is. If the rear never really lets back down after going into a corner could the 90-10 be preventing us from getting good bite off the corner?

dirtbuster
Dirt Maniac

Total posts: 106
posted August 20, 2002 03:37 PM
Without seeing the car run i couldnt tell you for sure but I know our car looked good through the corner but was slow coming out so we kept increasing bite until we got to around 100#.

Then we went down to 20# and the car was a lot better everywhere. Still got through the corner fast and came off a lot better. I think with more bite the driver had to throw the car into the corner to turn it then it wasnt set right to come out and made it slow. I cant say for sure that swapping your springs will help but you might try it.

Have you ever tried running less bite in the car. I know it doesnt make since. I thought we needed more bite to get the car off but i have talked to several including DW and they run little LR and some even RR bite.

Dustejr73
Dirt Full Roller

Total posts: 29
posted August 20, 2002 07:38 PM
i have been experimenting with running as much as 40# RR heavy it seems to help me on a dryslick track. i figure if you can tighten up the car going in then you have a better chance of keeping the tires planted coming off. i run a DW8 half leaf car.

billyjean23
Dirt Roller

Total posts: 10
posted August 20, 2002 08:16 PM
Thank you for the input. We have been anywhere from 20# to 80# recently. We have one of them drivers that can't really tell us if it is better or not. I personally think he is on the throttle to hard coming out of the corner. I don't know what to do for this problem. People have said to try a solid pull bar but I think this will make it worse. Anyone have any thoughts on the solid bar. We have tried Afco spring bar, monte bar, d&m spring w/ biscuit bar, quikcar torque absorber, but been afraid to try the solid bar. Hopefully we will run on to something.

2nd2none
Dirt Maniac

Total posts: 193
posted August 20, 2002 11:21 PM
I normally run around 40-60# LR, couple weeks ago i decided to try 130# LR. Didnt change anything else except just put a bunch of turns in the corners to get the weight up there. I was expecting a loose car so i put about 2" of stagger in it at the track, when i scaled it to 130# LR it had 1/2" stagger. The car was sooooooo loose i went from outside front row of heat to almost last in 2 laps, it was all I could do to keep it under me, the rest of the nite we kept making changes and finally got it descent and starting back in the C feature ran up to 14th in the A, but still didnt feel good, it wouldnt hike up or do anything and normally i'm hiked up and carrying the LF sometimes. So moral of the story is I'd say leave it at 40# if u got it workin good and PUT the solid pullbar on!!! That was something i changed about a month ago, went from a 600/1200 progressive afco pullbar with about 1-11/2" of travel, made a HUGE difference on forward bite!!

my car is a DW8 3 link 18" arms with LR behind, RR infront, that might be something else you should try is the LR behind. 250# spring in LR and 175# RR. Works real good.

[This message has been edited by 2nd2none (edited August 20, 2002).]

billyjean23
Dirt Roller

Total posts: 10
posted August 21, 2002 08:14 AM
2nd2none, How long of solid bar are you running? Everything we have been running has been around the 26 inch range. I think I will try to go longer (down to the drive shaft loop) tonight. If this doesn't work
we will give the solid bar a shot. The LR spring behind sounds odd but we may have to try it also.

dluna
Dirt Full Roller

Total posts: 42
posted August 21, 2002 10:30 AM
What kind of percentages are you guys running when you go to 30# RR bite? Our car is getting better and better every week on dry-slick. We were up to 100# LR bite last week. I know some of the DW guys run RR heavy also. So, with the season coming to an end, I would like to try this RR bite deal. BUT, what should I expect to be different? My thoughts are to run about 52%lft side, 51%cross, and 59% rear on a 2 link DW. LR trailing arm short and top hole, RR arm long and about 0degrees when it is slick. J-bar and biscuit pull-bar. Would love to try a solid pull bar, but I just donít know what to expect there either. Planned on just increasing the pre-load on ours to make it more like a solid. What about the 90/10 shock? If we do put a solid bar on, do we need to run one? Will it make the car loose without it? Doesnít the 90/10 shock (when there is some upward angle to the chassis) help push the tires into the ground by the chassis pushing down on it? Sorry for the novelÖjust donít want to be totally out of the ball park come Saturday night!!! Wish we got 2 sets of hot laps!!!

THANKS

billyjean23
Dirt Roller

Total posts: 10
posted August 21, 2002 02:08 PM
I'm really curious on the 90-10 shock myself. I to am kind of scared of running the solid bar (don't know why). I think sat. we might leave the biscuit bar in and try without the 90-10 in hot laps. Or is this not a good idea. We run a long 1/2 mile track.

2nd2none
Dirt Maniac

Total posts: 193
posted August 21, 2002 06:06 PM
When i put the solid bar on was right after i got into the wall hard and almost destroyed everything on the backend of the car. All the suspension parts was either broke or bent including the 90/10 and the afco pullbar. A couple buddy's if mine where running the solid bar with the 90/10 shock and they where curious to see what it was like to take the shock off. So when i was rebuilding the rearend of the car i put the solid pullbar on and left the 90/10 shock off and have never tried it. My car doesnt wheelhop getting in which is what the 90/10 shock is supposed to help eliminate. I cant tell you to leave it on or take it off, mine is off and my buddies are on.

the pullbar is a 22 or 23" bar i dont remember and i run it on the bottom hole which is about 20 degrees down.

I've ran this setup on our 3/8 med. bank dry/slick track and a few weeks ago ran it at a 1/2 mile rubbered up track, car worked real well at both tracks.

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