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Old 02-17-2008, 08:08 PM   #16
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We need more info dude.. Could you at least list your setup.. You can go softer springs in the rear, add another .5degree of negative camber, change to a staggered tire setup ie cs27 in the front and 22's in teh back.. Tons of stuff. It all depends on what you are doing already...

Slowing down before corner entry will also prevent the car from over rotating..

How do you want the car to feel? You can up the rear traction way up and just set the car up to push.. All depends on what you want...
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Old 02-17-2008, 08:14 PM   #17
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ALLWAYS run the same tires on the front and the back but treat them differentley if you need
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Old 02-17-2008, 08:40 PM   #18
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double post
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TQ-racing Yokomo BD7 Airtronics

Last edited by Francis M.; 02-17-2008 at 08:50 PM.
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Old 02-17-2008, 08:46 PM   #19
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triple post
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Old 02-17-2008, 08:48 PM   #20
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Quote:
Originally Posted by [email protected] View Post
Was using soft springs at the rear, camber 1.5 rear, 1.5 front. Rear 3 toe-in.

your suspension might be to soft in the rear already.

What car are you driving and what brand springs are you running.

For asphalt 17.0lb front springs and 14.0lb rear springs are good starting point with 30 to 35 wt shock oil all around. droop is usually at 3-4 mm up travel all around maybe limit the front a little more.

You really shouldn't have a big difference in spring rate from front to rear on asphalt..... Making the front too stiff and the rear too soft might actually be the cause of your spining out probems coming in to corners....
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Old 02-17-2008, 09:09 PM   #21
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Check your car out on a tweak station. Almost every time my car spins out its due to this problem.
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Old 02-17-2008, 10:53 PM   #22
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How about buying a good setup book.
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Old 02-18-2008, 12:20 AM   #23
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also make sure the rear diff isnt too tight.
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Old 02-18-2008, 03:22 AM   #24
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Quote:
Originally Posted by xraysteve View Post
i would try less rear droop. not less the 1 1/2 mill. then i would try to experiment with a rear sway bar. they some times add traction and sometimes takes it away. you should also try and make your rear camber link longer and or level. lay the shocks down in the rear. try and if something dos not feel good put it back and try something else always one at a time. all else fails put some anti dive in. that is when the front henge block is lower then the rear front henge block. but if your car steers the way you like it then you will have to change your caster block. go to 6 degrees. if all that dos not work let me know. good luck.

When you say less rear droop, means less downtravel for the damper right?
Reading on the droop gauge should be of bigger number? Or vice versa?

And thank you for all the feedbacks and inputs you guys gave!

By the way, xraysteve, nice avatar!
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Old 02-18-2008, 04:31 AM   #25
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1 make sure you dont have any front tow out ( try straight ahead)

2 also run a front spool , dont run a one way.

3 and run the front and back ride height the same .

4 slightly thicker oil in the front shocks too.

5 run a sway bar on the front end, or a thicker one.

6 run less drag brake (if you can)

7 or turn down the brake on the transmitter (if you can)

8 make sure the rear wing is not cut down to small

There is tons of stuff you can do....
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Old 02-18-2008, 06:10 AM   #26
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For quick problem solving or a point of reference i downloaded the attached Serpent reference chart which puts your tuning options in order of importance.
It might be for gas cars but it applies to electric aswell.
Print it and have it laminated for your pit bag.
Attached Files
File Type: pdf Serpent 200mm guide.pdf (216.4 KB, 242 views)
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Old 02-18-2008, 07:18 AM   #27
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Ilearned froma pro at my track that if the rear slide out to just raise the ride hieght in the rear or lower it in the front. But thats if the rear end slides out at the middle or the end of the turn.
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Old 02-18-2008, 08:25 AM   #28
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first rebuild rear diff!
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Old 02-18-2008, 09:04 AM   #29
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Camber gain.
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Old 02-18-2008, 10:18 AM   #30
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Default Some things to check first?

Quote:
Originally Posted by alex-fr View Post
first rebuild rear diff!
Yes, check if your rear diff is "diffing" smoothly

also, remove the rear shocks and check that the rear arms are moving smoothly. Check for tight or bent hingepins.

check drag brake settings (if any)

Check that the shocks are smooth and not bottoming out. Rebuild if necessary.

we are assuming of course that there's nothing wrong with the drivetrain? no seized bearings and pinion/spur gears are meshed correctly

If the above list checks out fine, then you may begin looking at the setup
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