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Re: OPTIMA MID '87 WC Worlds Spec Ltd Ed.

Posted: Mon Feb 26, 2024 10:14 pm
by sundevil67
terry.sc wrote: Mon Feb 26, 2024 8:37 pm
The "reinforced slipper clutch to support brushless motors " is basically stating it has a slipper.

Kyosho makes different slipper pads for different setups, unfortunately Kyosho doesn't say which pad works best in which conditions. The standard slipper pads are good for brushed motors and brushless motors on lower grip surfaces. For more powerful brushless motors and on high grip surfaces you change to the UM516B pads which allow more slip and can be tuned finer.

To be honest I only recently discovered Kyosho made a selection of pad materials myself, then a friend destroyed the differential gear in an Ultima racing on carpet and Kyoshos UK account manager pointed out he should have changed the kit pads for the upgrade ones to allow more give in the drivetrain.

If you like the Kyosho 240S ESC, don't go searching for the Performa P1 60A ESC that's half the price.
I went for the recommended electronics for my last 2 re-res, admittedly Kyosho got me with the shiny object - but I use it in 2 cars... I wouldn't overpay again for this one; it's going to be a runner for sure..The local track has faux-dirt, which is nice when u don't want to clean your car too much, but the traction situation is definitely different than good 'ole dirt I'm more accustomed to. I went with straight knobbiest last time & I liked it better than the stock tires (on my Turbo Optima) .. but I expect the shock oil weight to be the adjustment I mess with the most since my Turbo got beat up pretty good on the jumps last time out. It sounds like the slipper pad isn't something to think about much unless I run into that scenario, so I appreciate the explanation... and the ESC recommendation.... I am considering shipping the body off to a pro to handle that part though ... especially with all the hub-bub about matching the green.

Re: OPTIMA MID '87 WC Worlds Spec Ltd Ed.

Posted: Tue Mar 19, 2024 10:14 am
by HS-YZ250
For anyone interested: the gunmetal shocks are listed on Kyosho. So there might be other Worlds Spec parts available as well.

The assemblies (currently showing out of stock)

OTW151 (Front)
OTW152 (Rear)

The bodies (currently showing in stock)

OTW151-01 (Front Shock Case)
OTW152-01 (Rear Shock Case)

Titanium Nitride Shock Shafts (currently showing in stock)

OTW153 3X37mm Shock Shaft
OTW154 3X49mm Shock Shaft

Re: OPTIMA MID '87 WC Worlds Spec Ltd Ed.

Posted: Mon Jun 10, 2024 1:06 pm
by sundevil67
Hi all... so I'm going to swallow my pride here :oops: & ask for some help, because I really, really, really don't want to tear apart the rear tranny.

I started this build & let many months go by after completing the first couple of steps (mistake). I returned to the project the other night, finished the transmission assemblies & bolted them to the chassis. The belt drive operates smoothly & all seems good...'cept that there's an extra BRG014 staring at me.

I tore apart the front gearbox thinking I may have left one out, but all are there. I went through the previous steps in the manual & counted 5 needed out of 6 included. I didn't see one needed in any of the subsequent steps, and am thinking if I forgot one someplace, the tranny wouldn't operate so smoothly & there'd at least be a noticeable hiccup somewhere.

Anyone know if Kyosho actually included an extra one of these? I know it's more likely I missed where the 6th is needed (hoping it's later in the build). I would rather correct the mistake now than after a failed maiden voyage.

If anyone who has built this kit can confirm whether or not all 6 were needed, it'd really be a big help.

Thank you!