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Author Topic:   scaling proceedures
racer17j
Dirt Forum Champ
Total posts: 885
posted January 14, 2002 12:14 PM UIN: 54865418
just wondering how you all scale your car do you do it with the driver in the car or weight in the seat =to the driver or do you just scale with the seat mt?

NWModracer
Dirt Full Roller

Total posts: 51
posted January 14, 2002 04:06 PM
Go with what your chassis builder suggests to get your baseline. Once you have that baseline, stick your driver in there to see what it does to your percentages.

I do both. My chassis builder refers to everything so we do most of the setup without the driver but we do a comparison with the driver.

jonboy
Dirt Roller

Total posts: 17
posted January 15, 2002 11:31 PM
My suggestion would be to go by chassis builders set up weights. Then take the driver out of the car and then use those weights, ride heights as your real numbers. This is helpful if the driver is also the setup guy. Once you have established the baseline you will adjust the car from those numbers. Don't forget to maintain the same air pressure and fuel weight (I usually top off the tank). Also I never trust leaving the shocks attached as I have been burned a time or two by a sticking shock. Hope this helps.

spde
Dirt Full Roller

Total posts: 63
posted January 16, 2002 12:37 AM
When I scale my car I use the same place in the shop every time. I have all the air presure set to were I want them to be after a race. Then I have 1/2 a tank of fuel. I scale it to were I want it to end up at the end of the night and I usually sit in the car as it is getting scaled. I do this so I can make sure that the % are right at the end of the night after running the feature. This lets you see if your gonna have to add some weight or just move it around a little more. ltr

millerlt3
Dirt Forum Racer

Total posts: 95
posted January 17, 2002 06:58 PM
I always scale the car with me in the seat. We have marks on the floor were the scales go and use this same location every time. And have the car just as it would be race ready. All fluids filled, tire pressures set and stagger were going to try and run. 1st. check ride heights and adjust as needed. Then raise the car and place on the scales, and my chassis builder says always to disconnect the shocks so they don't hold the chassis up off the springs. 2nd set corner weight distribution. 3rd set cross weight. 4th set caster. 5th set camber and then adjust the toe. This works well for me. Good luck.

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