ORIGINAL: nickrummy
whoever was wondering about how that 13/16 cb and 47/43 spur ran.... To much bottom end. When the tires hooked up with the off road tires I can pull wheelies. with on road tires they don't have enough traction. I took it to the track today (sorry no pics) and ran it around. The track was to dusty. Hard to keep the truck straight. Ended up stripping the spurs in the two speed while screwing around in the parking lot. got a hard launch that hooked up real good and that did the spurs in. I'm going to swap over to 52/49 spurs tonight and I'll get some vids tomorrow at lunch. Anyways, if you switch to 47/43 gearing you will still have a ton of bottom end and A LOT of top end.
Why are you guys changing the knuckles and C-hubs? because they are weak? I broke one today just from coming off a jump wrong.
I'm really thinking about buying an 18ss kit and selling the motor out of it and dropping in my CV-R in the SS.
nickrummy
Thanks for the info on the 2-speed gearing; I will have to try the 47/43 combo. Just one question, being the gears are smaller you have to move the engine in towards the center of the truck. Does the engine interfear with anything, do you have to modify anything on the chassis???? I know when I dropped in my OS .18CV-r into my MT2 I had to grid away some of the plastic next to the pull cord, or maybe it was my MT1 I had to do that too?????[sm=idea.gif][sm=idea.gif]
With the 2-speed I predict I will be going through a lot of spur gears with the OS .18 installed. They are a lot thinner then the single speed spur gear making them weak. Also the HPI 2-speed uses a locking method to engage second instead of the clutch style used in higher end racing cars and trucks (cars like the Team Associated NTC3 for example). The locking method puts tremendous force on second gear instead of engaging second gradually. I already stripped my second gear spur with just 3 tanks through it (and I am using the small tank that comes in the MT1).
As for the knuckles it is one of the MANY weak points that needs to be addressed on the MT1 & 2. I would suggest the aluminum knuckles as the next upgrade if anyone out there has not done so already.