Jpdanger

I did something similar with my KF2, but I removed the brace screw holes on the motor assembly (MA) and took of the tension roller off the tranny halves thus moving the enture MA an additional 17mm rearward and fit in a 65T belt. However, I did this with a CF chassis. The forward traction was tremendous and still had tons of steering, but the CF flexed so much even with a front brace that the car was very twitchy. There was so much flex between the MA chassis I would regain a lot of the rigidity.

JsK

iTrader: (10)

Do you have a part# for the 65t belt JP?

Jpdanger

Schumacher does not make one to my knowledge. What you needs is a 65T, 3mm pitch, 195mm long, 4mm wide belt. I think this is what I bought:

http://shop.polybelt.com/195-3M-04-R...5-3M-04BNG.htm

JsK

iTrader: (10)

Thqnks JP, that was exactly what I needed.

twisted

iTrader: (13)

yea im not gonna go that far. im going to work with the what i have.

twisted

iTrader: (13)

whats a good starting point for gearing a 17.5?

thanks

cokemaster

iTrader: (18)

This is depending what side gear and spur you are using. If you are using the side gears that came with the kit, you will have to use a 71 spur and and a 30-31 pinion. The spur that comes with the kit is to big for stock racing.
See page 33 in the manual. For a 17.5T motor, you final drive should be around 6.

twisted

iTrader: (13)

thanks

twisted

iTrader: (13)

is it possible to run the kf2's low grip conversion on the original kf?

AmiSMB

All of the parts and holes in the chassis are included with the KF2 kit so you can decided to run normal or the low grip option. The manual shows how to build it for each option. The only thing not included in the kit is the ability to run the shocks on the back of the wishbones.

Gayosaka

If you are talking of the Mid conversion U4788, no you can't, too many different parts (rear bulkead, arm mounts, motor mount...)
But there is a small shop in the UK that sells a chassis to convert a KF. Check Cobra Racing Products on FB.

twisted

iTrader: (13)

thanks for the info.

twisted

iTrader: (13)

anyone play around with flex with their kf? i made the rear crace a 2 part brace and that added torsional flex and the car is a little better. wondering what else i could do to add more and if anyone has done so???

roadblock

Just got a kf kit and aside from missing many parts (local guy seems to enjoy raiding the boxes) the center pulley doesn't seem to be machined right. The slot where the pin sits in not deep enough to cover half the pin and the shaft has about 1/4 inch of lateral play. I looked for a replacement pulley (U4469) but it seems they are discontinued and no longer available. Is there a different part number I can use? Is the kf2 pulley compatible?

DiscountRCStore

Hello ..! Sorry to hear of your issue .. Is this a new kit? If so, we have 2x of the U4469 in stock at the moment. If you will email: [email protected] and send us a picture of the defective part along with your shipping information, we'll get another one shipped out in the morning for you and handle the warranty with Schumacher directly .. hope it helps ..


..p