RC10Talk - The Net's Largest Vintage R/C Community

If running a mid, then top of the hop up list would be thorp or mip hardened center gear. Other than that, the car can handle brushless and lipo power. EVerything else is just gravy. Although, the more serious a person is regarding racing, then the more important the upgrade path becomes. I wouldnt ...

Optima mid is probably the best car to get started in vintage rc collecting and restoring. Parts are plentiful, cars are plentiful. The platform can be raced hard core, and everybody loves a mid!

IMO. best way to build mids is to buy up a couple or a few relics from ebay. Often in a job lot of parts cars there will be some rare parts, or some nice hop ups. This way one can build their dream car, and then have spares,, and possibly sell off a couple after enjoying the builds. Folks try to get...

Yeah, it looks like the new optima rear diff gear side is much finer pitch than the old mid version. I suppose opt mid was 32 pitch. Ive got a thorpe center gear,, but my last diff gear is a mess. No worries,, I found some!

Heellloooooo. Anybody still hanging out here? Are the new optima belt diffs compatible with optima mid? If nybody has experience,, what about the ball dis? Ive got the hard parts for an optima mid ball diff, but the gear is chewed, so im hoping the new optima rear ball diff gear will work with my ol...

Thats looking very nice! I always wanted to do the same thing, but never even tried. Your solutions are top notch and seem like they should work great.

Im rather fond of that shipping box. In 20 years that will be more rare than a kitbox! I really like it!

I recommend against delrin or acetal. Its more brittle, can possibly break on hard impact. Nylon will be better. Honestly I havent run either for suspension arms,, but I have machined both materials,, and acetal(delrin) is generally not used for structural items. Mostly for gears and fixtures. In pr...

Im going to cut some arms this week. Initially, they will be stock 91 arm length. If all goes well, I will post pics.

Hi MrEd, can you do a .dxf file? Ive been toying with making arms on a manual mill, but would like to try sing my cnc. The material i have is too thick, so I would likely add a rough cut process to the mix, or possibly mirror the process on each side to produce symmetrical arms.

Thanks! Thats a good read.

Has anybody bought into yz4 yet? Im wondering what size bearings the layshaft slipper assembly rides in. Also, has anybody compared the axle cvd assemblies to vintage yz10 units to see if they will fit any older models?

The slipper clutch assembly for later yz10 will go right into the standard center motor mount bulk head. They are a bit hard to find, and lately, might as well be gold plated. Folks are getting top dollar for completed units. that being said, theres an mx4 slipper assembly on ebay for less $$, but I...

Ill be using the same blue motor mount and front bulkhead on my custom build. Nice to see some fresh material round here.

WOW! Just beautiful. It inspires me to get going on my custom. Your car looks really pro, and durable enough to run hard.