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by alcyon
Thu Oct 26, 2017 1:45 am
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

Re: 48P Optima Mid LWB conversion a success.

The stress on the belt and transmission in General does not come from the motor only but also from the grip on the track. There are also different kinds of belts, made from different materials (polyurethane, propylene) but of the same size. Maybe some kinds are not tough enough or suitable for othe...
by alcyon
Sun Oct 22, 2017 2:16 pm
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

Re: 48P Optima Mid LWB conversion a success.

Screen capture
by alcyon
Sun Oct 22, 2017 2:14 pm
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

Re: 48P Optima Mid LWB conversion a success.

Todays run, with all 4 rear shocks.
by alcyon
Fri Oct 06, 2017 12:48 am
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

Re: 48P Optima Mid LWB conversion a success.

Good job on the conversion :) That last vid is showing an insaaaaaaanely long straight, even for 8th scale!!! Love the old-school drifting driving style! hope you don't race like this otherwise your competitors will drive inside everytime :mrgreen: nice work! The track is extremely bumpy thats why ...
by alcyon
Wed Oct 04, 2017 2:52 pm
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

Re: 48P Optima Mid LWB conversion a success.

Lol lonestar, you were too quick, I was editing my links and placing pics in them.
here are some videos of my tests. 1st 2 vids show test no 3 and 4, last vid test no6.




Ignore my brother he talks too much !
by alcyon
Wed Oct 04, 2017 2:24 pm
Forum: Kyosho Forum
Topic: 48P Optima Mid LWB conversion a success.
Replies: 15
Views: 1168

48P Optima Mid LWB conversion a success.

Ok after about 2 years of R & D, which included the testing and eventual ruling out of the twin belt system on the Optima Mid, I am glad to announce the success of my 48P conversion. Special thanks to Linus from Sweden who worked with me to suggest gears suitable for this conversion. Currently only ...
by alcyon
Wed Apr 26, 2017 12:27 pm
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

Sad to report that the twin belt system is a failure, the short rear belt simply cannot take the loads of driving the rear wheels as well as the fronts. Concurrently I have also developed a 48P internal gear conversion that uses new gearboxes which also uses the new re re optima gear diffs, and a fi...
by alcyon
Wed Feb 15, 2017 2:32 am
Forum: Regional Races / Get Togethers
Topic: Visiting Australia
Replies: 0
Views: 293

Visiting Australia

Hi guys, calling out Australian members in Perth, could I have a meet up with you guys on the week of March 11 to 16 ?
I will be bringing my Optima Mid.
by alcyon
Thu Sep 29, 2016 4:18 am
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

bully wrote:Great work Rama mate :mrgreen:
Yeah, you got first hand info , that's why you're smiling . :mrgreen:
by alcyon
Thu Sep 29, 2016 1:06 am
Forum: Kyosho Forum
Topic: Optima re re gear dif parts fits lazer zx gear diff pulley
Replies: 6
Views: 652

Re: Optima re re gear dif parts fits lazer zx gear diff pull

Use 200,000 to 500,000 diff oil you're all set, always use harder oil for front diff.
by alcyon
Sun Sep 25, 2016 1:02 pm
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

Tested the twin belt mid and no belt slipping or failures at all! Did ruin one esc by soldering for too long, and damaged the rear gearbox from backflipping and landing on the wing mounts many many times, thanks to the lip of the jump that was designed for 1/8 cars. Most important thing was the twin...
by alcyon
Sat Sep 24, 2016 1:14 am
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

For The Optima ,I thought about it in more detail and it is possible ! It's possible if both the internal and external gears be converted to belt. You cannot convert either one only. When both are converted, both will move in the same direction, then this will work !
by alcyon
Fri Sep 23, 2016 4:19 pm
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

Ahh. I just studied the gears you were talking about..and i am afraid its impossible to convert to belt both inside and outside. This is because internally the optima only has 2 gears. So one gear turns in the opposite direction of the other..hence impossible with a belt drive. It is also impossible...
by alcyon
Fri Sep 23, 2016 2:58 pm
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

Wow, very nice mod! I'd definitely get one of these once the kinks are ironed out! :) Would a system like this work on a vintage Turbo Optima as well? Well not directly but should be possible. Problem is i dont have an optima to base my design on.These last few months the main problem is the tooth ...
by alcyon
Fri Sep 23, 2016 1:34 pm
Forum: Kyosho Forum
Topic: Twin Belt Optima Mid
Replies: 18
Views: 1495

Re: Twin Belt Optima Mid

Wow, very nice mod! I'd definitely get one of these once the kinks are ironed out! :) Would a system like this work on a vintage Turbo Optima as well? Well not directly but should be possible. Problem is i dont have an optima to base my design on.These last few months the main problem is the tooth ...