How's my weight look?

[Reedy26]

So this is a scout car, extended wheel base (4.923"), 3 wheel rail rider, drilled block. Right FDW.

I weighed each corner as in the picture below with the weight shown in the second picture.

Here is what I came up with

CoG. .965

LF. 0.0
RF. .876oz
LR. 2.298oz
RR. 1.810

Total weight 4.988oz

Any thoughts? Should I move more weight over to the RR to balance out the rears? Is that enough on the front for stability?

This is my first crack at this, so thank you for bearing with me!

 

[Mojo Racing]

Add a little more total weight with tungsten putty to bring the total weight to 5.040 oz. It will round down to 5.0 on a 1/10 scale.

Put the weight on the right rear side to bring it up a little bit.

Other than those two little things, looks good. Good job!

 

[Reedy26]

Add a little more total weight with tungsten putty to bring the total weight to 5.040 oz. It will round down to 5.0 on a 1/10 scale.

Put the weight on the right rear side to bring it up a little bit.

Other than those two little things, looks good. Good job!

I can get away with the little extra weight even if my rules read like this?

 

[Loud2ns]

Yep

 

[Mojo Racing]

yep... 5.04 will round down to 5.0 on a 1/10th scale.

Use tungsten putty to get it there though... in case there is another scale and you have to make an adjustment.

 

[Reedy26]

Yep

Thanks!

Another quick weighting question, I'm guessing the rears will never balance out on a 3 wheel car, so should the FDW and its corresponding rear equal the opposite side rear?

 

[Matt's Dad]

Thanks!

Another quick weighting question, I'm guessing the rears will never balance out on a 3 wheel car, so should the FDW and its corresponding rear equal the opposite side rear?

The rear wheels can balance out if you get creative.

 

[Reedy26]

Thank you for the replies & the help.

I ended up with the following (because I didn’t realize that the tungsten cubes vary slightly until I glued the rears in ‍)

Didn’t really have time to rework them, race is this Saturday.
LF 0.0
LR 2.385
RF .882
RR 1.762

Total weight is 5.02 (allowing .02 for the aluminum tape on the bottom I weighed out.)

Only took a very minimal amount of putty.

Everything is done but pledging the axles, graphite, setting wheel gaps & hoping for the best.

Little guy wanted a Minecraft Creeper & flames. I cut out the stencil & he painted it.

 

[Pinewood Outlaw]

That much wheelbase you could get cog down to 1/2"

I know you said extened wheelbase but in the one pic it looks like your axles are in the slots......did you drill extended wheelbase then make slots?

 

[derby freak]

you and your son did a really good job on the car...you should do well in the race just by looking at the car in a pic.... but here are a few things that may help you out in the future.....

1.) try to get the car body light enough to use 22-24 cubes of weight (24=about 4 oz)
2.) use at least a 3/4 cog
3.) streamline your front fenders a lil more

hope this helps