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Author Topic:   LEFT SIDE WEIGHT ?
crew42tx
Dirt Full Roller

Total posts: 53
posted August 06, 2004 08:58 AM  
Is there such a thing as too much left side weight?

The scale numbers for my car seem to be way different than our other car wich is a lot different car but they also differ from what I've seen most others say they have. This is a metric malibu
tell me what you think.
This is only second week for car last week it would not turn, shocks were bottoming out in front. We fixed that for the feature but still toooo tight and this is what we come up with now

lf 842 rf 668


lr 832 rr 766

this is an imca stockcar so it has 4 wheel brakes

springs are as follows

lf 1100 rf 950


lr 225 rr 250
btw it is a 1/4 mi. slightly banked track

[This message has been edited by crew42tx (edited August 06, 2004).]

marshalr
Dirt Maniac

Total posts: 148
posted August 06, 2004 11:29 AM  
Why were the shocks bottoming ?
Your weights are ok, spring placement is backwards to me, i'd swap both front and rears side to side.
I suspect you'll find you have a suspenion bind somewhere, or tire pressure problems.

Flanndad
Dirt Freak

Total posts: 255
posted August 06, 2004 11:31 AM  
Looking at your spring rates, are they correct?
I never had any look running them reversed.
I run the same spring as you just reverse them.

crew42tx
Dirt Full Roller

Total posts: 53
posted August 06, 2004 01:01 PM  
the shocks were bottoming out b/c I just didnt allow for enough travel when I made the mounts. I was just going to try the reverse springs on the front b/c I heard good things about it. I had the rears the other way before but I swaped them to loosen the car up a bit. I'm going to try it tonight and will let you know how it works.

tilley88
Dirt Forum Champ
Total posts: 879
posted August 06, 2004 01:23 PM  
Not only would I swap the springs front and rear, But I'd drop the rears about 50 lbs, too.

marshalr
Dirt Maniac

Total posts: 148
posted August 06, 2004 04:23 PM  
I was taught that reversing the front springs was a last ditch crutch for a car that was incurably tight for conditions. Was it too loose before ?
You said the car would not turn at all.
I have had cars that were so well hooked up in the rear that it created a push. Had to really pitch it or get down low in the mud to unhook the rear so the front could turn

cd2
Dirt Maniac

Total posts: 161
posted August 06, 2004 07:21 PM  
crew42tx,swap the springs. Put the 1100 on R.F.& the 950 on L.F. Also swap the rear 225 R.R.& 250 L.R. After the swap reset the front end settings & the toe & get the cross weight up to at least 52%. The reverse spring split will make the car very tight & the crossweight as it is now is causeing it to be very tight on entry.If you set the car like i suggest & it does not turn you have a bad bind in the R.F. or R.R. Just reply back with the results. cd2

crew42tx
Dirt Full Roller

Total posts: 53
posted August 07, 2004 10:26 AM  

 
Well the car was good enough to win last night. I think we are going to stay with the reverse springs in the front but we are going to have to go up on both of the fronts, put the 1100 on the right and get a 1200 or 1250 for the left. the car was rolling over on the right front so much that the left rear was comming off the ground. I did chang the rears for the feature, putting the stiffer one on the left rear. Other than rolling over too far the driver said the car handled like a dream.
the date on the picture is wrong it is august not july
[This message has been edited by crew42tx (edited August 12, 2004).]

[This message has been edited by crew42tx (edited August 12, 2004).]

crew42tx
Dirt Full Roller

Total posts: 53
posted August 12, 2004 11:09 AM  
see photo above

crew42tx
Dirt Full Roller

Total posts: 53
posted August 29, 2004 02:06 PM  
We are still trying to get this car dialed in. The problem we are having is that what ever I do to try and keep the left rear tire on the ground seems to tighten the car so it dont want to turn. Does anybody have any suggestions?
HELP!

dan63
Dirt Full Roller

Total posts: 44
posted August 29, 2004 07:06 PM  
How much stagger? With the stiffer left front spring it will be tight getting in. This may sound backwards, but with the reverse split in the front you need more cross to loosen it up on entry. If you haven't already check and see if the rear end is square in the car. Is the left rear shock bent? Maybe hanging up when in rebound or not enough travel.

crew42tx
Dirt Full Roller

Total posts: 53
posted August 29, 2004 08:46 PM  
dan63 thank you for the reply. The rear is square checked all of that b4 it hit the track. We have full suspension movement with no binding. The more cross to loosen does seem unreal to me. It would be hard for me to convince the driver of that. I may have to go to what has worked on all of our other cars and put the stiff spring on the rf.

dan63
Dirt Full Roller

Total posts: 44
posted August 30, 2004 08:49 PM  
I tried the reverse split in the front for the same reason you mentioned, "I hear good things about it". The stiffer lf spring plants the rr under braking, making the car want to turn to the right. That's why an increase in cross weight is needed to loosen it up on entry. I tried it for 3 weeks and couldn't get confortable with it. My car is now setup very similar to the advice cd2 gave. 53 left 53 rear 53 cross 1100 lf 1250 rf 250 lr 200 rr. The car is a little loose under heavy braking, but turns well through the center, and the 50 lbs split tightens it on exit. 25 lbs is a more common split the rear, but this car just seems to like 50. Sorry for the long winded reply. Good luck!

    

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