DEX Durango SBS Saddle pack conversion

[Neal]

http://www.oople.com/forums/showthread.php?p=652437

[s22jgs]

Why? The car has plenty of rear end grip in standard config.

[Legacy555]

Originally Posted by s22jgs

Why? The car has plenty of rear end grip in standard config.

Concentrates weight about the pivot point reducing inertia.
Great on tight tracks

[Neal]

Indeed!

[kartstuffer]

Hi
What is your ready to race weight ?

[av4625]

How do u measure the weight ratio?

[Neal]

front weight : total weight x 100 = front weight ratio

rear weight : total weight x 100 = rear weight ratio

if you add the result of front and rear you should get the total weight of the car off coarse !! if not then you should take nearest average !
succes!!

[Neal]

my RTR weight is about 1500 grams

[adey]

I am working on a saddle chassis myself. All carbon fibre but using standard alloy chassis to keep costs down. Pics will be posted when done .

[av4625]

to get the weight of the front do you just put the front end on scales and prop the rear end up? did u do it with wheels?

[adey]

I have made a couple of cars of my own design and use a flat board with four upstanding springs with rubber ends on them. I rest the car on this and use a measuring rule to check chassis height off the board to get the weight balance right. I find it does work but I am sure there are better ways.

[cornishboy176]

I got shown this way years ago to get the % front - % rear

Weigh front and rear (i propped the other end of the car so it was level,add together,then take the front weight and divide by the overall weight (move the decimal point 2) of the car and same with the rear and that gives you your % front to rear

For Example

Front weighs 686

Rear weighs 1040

Total 1726

686 / 17.26 = 39.74

1040 / 17.26 = 60.25

Round it out to the nearest number so this set up will be 60/40 weight distribution

Another Example

But this time,i have removed weight off the front which in turn has altered the rear aswell,

Front weighs 649

Rear weighs 1046

Total 1695

649 / 16.95 = 38.28

1046 / 16.95 = 61.71

Round it out to the nearest number so this set up will be 62/38 weight distribution

This is the way i have been shown,Please correct me if i am wrong

Cheers

Iain

[av4625]

thanks

[Neal]

This is indeed correct! I think the weight distribution should be as close as possible to 65 35...this reference is known to be the best (for me it is anyways) for overall handling of the car

[Neal]

every measurement has to be taken with wheels ,tires, lipos and body