Speed increase with moving NDFW to the rear?

[turbomattk]

Hello first post here. 4th year building a car with my son for Cub Scouts so I have some experience. We are building two cars for the race this year each with completely different designs. The car in question is a flat body with an extended wheel base. Back wheels are cant about -2-3*s. DFW is setup to rail ride and the NDFW is in the air. I'm trying to shape my own fenders out of balsa.

I've tried searching here and other forums, but is there any advantages or disadvantages to moving the NDFW to right in front of it's rear wheel? My thoughts would be that some weight shifts to the rear. There could be a short fender between the NDFW and rear wheel to keep the air from getting between them for aerodynamics. Has this been done before? I saw someone else posted a car pix that showed three wheels on one side with one on the other side and this got me thinking about moving the NDFW.

Thanks.

 

[bryan]

It seems most rules require the left and right wheels to be directly across from each other. Do you have more lenient rules?

 

[TRE]

Its worth about 003..i did it at mid america few years ago before they changed the rules

 

[aircooled]

A few year ago I would run a set up like that. It is called the “train” and was very successful with it. Check your rules real good to make sure it meets the requirements.

 

[turbomattk]

It seems most rules require the left and right wheels to be directly across from each other. Do you have more lenient rules?

The rules can be interpreted as pretty opened. It doesn't even say that there needs to be 4 wheels. Below is a link to the rules. It is an older flyer but the rules have not changed.

https://scoutingevent.com/attachment/BSA160/15570_1391469038_1258.pdf

 

[Skywalker Racing]

The rules can be interpreted as pretty opened. It doesn't even say that there needs to be 4 wheels. Below is a link to the rules. It is an older flyer but the rules have not changed.

https://scoutingevent.com/attachment/BSA160/15570_1391469038_1258.pdf

Then I would have only 3 wheels and a guidepin

 

[derbydentist]

Then I would have only 3 wheels and a guidepin

and the lightest wheels possible while being rigid and keeping the lettering. pretty open rules other than no oil