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A FF03 for USGT - Bending the rules, cheaply.

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10-05-2018 | 08:29 AM

#16

outlandr91

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Joined: Jan 2005

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Quote:

Originally Posted by Nerobro

Well, I did the math. 16.2 grams total. But most of those losses were above the beltline, so will help keep that CG low.

Here's the most satisfying part.

Check out that difference in weight.

That's a big decrease in rotating mass!

10-05-2018 | 09:45 AM

#17

Nerobro

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From: Chicagoland

Quote:

Originally Posted by outlandr91

That's a big decrease in rotating mass!

I suppose it is, but the moment of inertia there is so small, as to be inconsequential. The 62 tooth pinion i'm running... now that would be something to write home about. :-)

10-05-2018 | 11:04 AM

#18

Dan

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Always curious on a FWD (with no weight limit) would do against other 4WD USGT cars on black carpet.

10-05-2018 | 11:08 AM

#19

Nerobro

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From: Chicagoland

Quote:

Originally Posted by Dan

Always curious on a FWD (with no weight limit) would do against other 4WD USGT cars on black carpet.

Self versus self, a solid 10% slower. :-/ But i'm still working on that "problem."

10-05-2018 | 02:21 PM

#20

bertrandsv87

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Quote:

Originally Posted by Nerobro

Well that was shocking. I swapped out the steel top shaft and gear for the aluminum. That saved 11 grams. I saved another 20 or so grams swapping out a bunch of other screws for aluminum.

I also saved another 2 grams swapping out the metal suspension pivot pins. All high up in the car! Yay.

Next step, is to dive full on into seeing if can-am gearing will be ok.

So.. where will I continue this crazy weight savings adventure? The ESC can be swapped for something lighter. And I can remove the fan.. and some of the heatsink. I can take the reciever out of it's case. Sadly, I want to put the foam bumper back on, which is going to slap a lot of that weight right back on the car.

To pull this off, you will need to first start with the lightest Fwd kit out there and then add all the lightest stuff to it: the plastic chassis is counterproductive.....I tried the same with my AE car and lost 62grams by switching to a cf chassis alone.....Good luck....