Scaling problems!!! Help

[stock car driver]

Ok. Changed my ride heights a little. Moved the fuel cell to the lr more. Lf shock was extended all the way(moved the mount down) and had the lr spring slider catching on the birdcage. Got her right on the scales now. Went to practice and turned 3rd quickest time on record and I've been out of a car for 4 yrs( not to toot my own horn. Lol) thanks for suggesting the 90lbs in the seat. That was a lot easier than me getting in and out of the car since I'm such a small guy. Thanks for all the help!!!!!!!!!!!!

I do all my scaling minus driver. Its a lot easier.

[crateracer16]

Ya. I never had enough weight to make up for my body weight difference cuz my setup sheet is setup for a 210 driver. but it was a LOT easier being out of the car! Thanks again guys

[TeamGRT12x]

Jeff,
Trying to help someone not make a mistake. I have never in my life heard of someone say that when you crank on a weight jack, you are making the spring taller or shorter. It's such a minute amount that it isn't to be worried about. If you are worried, you better carry quite a few springs.

When does the JNJ Stock Car come out? I noticed you had it for sale???

[stock car driver]

Ya. I never had enough weight to make up for my body weight difference cuz my setup sheet is setup for a 210 driver. but it was a LOT easier being out of the car! Thanks again guys

In that case I would scale with the 210 in then remove it and write down your bite, left, rear and total and scale to those numbers from then on and adjust from those numbers etc.

[oldtrackchamp4x]

As fast as you are i would leave the car alone and get used to driving it. You did write down all your setup numbers, didn't you? Continue scaling the same way you did it the last time as it sounds like you are right on on the setup.JMO

[stock car driver]

Jeff,
Trying to help someone not make a mistake. I have never in my life heard of someone say that when you crank on a weight jack, you are making the spring taller or shorter. It's such a minute amount that it isn't to be worried about. If you are worried, you better carry quite a few springs.

When does the JNJ Stock Car come out? I noticed you had it for sale???

I havent bolted a single part on it. Everything I have is for sale always. I would like to quit or at least cut my racing down to 20 nights approx this summer. I am down to only 2 motors 1 imca 1 USRA and parts for most of another of each, this is the lowest in hard parts Ive been in years. The IMCA USRA differences really suck for me.

I think if I could sell the purple car. I have a very hard time working in my shop when the weather is as nice as its been lately and I got an awful lot more satisfaction hearing about the hobby I built race at Beatrice than I ever thought I would.

[kencar87]

Scale

Ok. I missed the first race tonight because I couldn't get the scales to come out right. I just got this car too. 04 bms mod. 4 bar. Springs are rf 750 of 650 or 175 rr 225. Lr shock in front spring behind rr is coil over in front. No matter what we did the rr was always heavier by at least 100 lbs. I just can not get any wedge in the car. We've gone over everything 10 times tonight and we can't find an issue. Nothing is touching or binding anywhere. We even went as far as pulling lower a arms to check jacking bolts and plates for a bind. Everything looks like it should. Measured the chassis and it is square(thought it may have been bent) I weigh 290lbs and thought I would have too much wedge but no. We put the car on 2 different scales and the same outcome. Someone told me you are supposed to pull the lr axle out to scale. I didn't do that but would it cause this headache? Any suggestions. I would like to go to a practice session on weds but want the car to be close on the scales. Thanks

Listen to lm14 he has got it right. 1. set all your ride as directed by the manufacture. 2. see , what you got and go from there, in your case I would do as lm14 said,put 3turns in the right front and take 3 out of the left front, go to the rear and put 4 to 6 rounds in the left rear and take out the same on the right rear, car will sit just like it did when you set it earlier. this should put left rear in the car and you can work from there as needed. always scale the car with your poundage in the seat, this is how you race the car, so scale it the same way you race it. It is that simple. Leave the shocks hooked up, pull bar in and hooked up. This works for me every time, and make sure you check for binding, it will throw your car off every time. Hope you got something out of this and some of us here are ready to help and I hope through this forum you get the help you need to have the fun that all of us out there are having now. See ya on the track! Good luck.

[crateracer16]

We did a lot of what lm14 suggested along with modd55 and it got us running quick. Thanks!!!!

[Mosidebite]

You can also take anything HEAVY DUTY has to say to the bank, as he has built National Championship mods and actually understands what these things are doing and why. Some of these guys...well they just confuse people

[sj valley dave]

Jeez...I never meant that in the real world that you would have a shock fully extended, I just replied when someone said that you NEVER could shorten a spring by cranking down on a coilover adjustment...I was taking it to the absurd to prove that yes you can...Have fun with this discussion as I will just go back to racing our DLM...LOL Some people take themselves sooo seriously..LOL

[TeamGRT12x]

I never said that it NEVER changes the free height or compressed height. I stated that's not what you adjust weight jacks for. Sorry, you guys are right, I'm so wrong.

[sj valley dave]

Weights jacks are for ride heights...OK...When you raise the ride height you will see more weight on that wheel..OK...He was saying that no matter what he did with his jacker he saw no change in the wheel weight on his scale...OK...He has an issue...Very simple, and it was blown out of proportion..

[powerslide]

I never said that it NEVER changes the free height or compressed height. I stated that's not what you adjust weight jacks for. Sorry, you guys are right, I'm so wrong.

Your crawfishin on us Brett. You clearly stated that the "Spring doesnt get taller or shorter"

I agree in most cases it is a very small change but it does change. If i was to go from a low or reverse wedge setup to a high wedge setup you would see a pretty big change. Get your tape next time and see. I agree its not something we should worry about but it helps people understand how a car works and why.

Crate man glad you got your issue's fixed and congrats on your lap time.

[LM14]

How does all this arguing help the original poster?

Glad you got your problem solved, let us know if you have other questions and we'll try to help, hopefully without a pi$$ing contest attached.

SPark

[TeamGRT12x]

SPark/Powerslide

I know, and you understand what I was saying. The problem is, nobody cranks on a weight jack to increase the pre load on a spring. That's my point. Hope the car is scaled and working good.