[isobarik]

Originally Posted by alcyon

Guys, i was practising yesterday evening for the coming offraod race next week with my optima mid, which has the B4 slipper parts. The car works great, then after a hard few tumbles, i found my gearbox was cracked on one side. so i super glued the gearbox and retightened it and went for another round, after a few more hard tumbles, i saw that the front end is totally skewed to one side. Before i picked up the car, it suddenly occured to me, the only thing that can cause the whole front end to be skewed is.. you guessed it, a snapped graphite chassis. Picked it up and sure enough i was right. Seems the designers at kyosho made a big mistake. The end gearbox holes for the front gearboxes are inline with the area where the chassis starts to taper. So i decided the only way i can race while i get a new aluminium chassis is to race my ZX-R Mk2. Mind you i bought it a few months ago and still havent run the thing. I looked at the Lazer's chassis and found that kyosho did improve the placement of the front gearbox hole, its well before the area where the chassis starts to taper. Spent a day transferring all my electronics and setting up the suspension and steering linkages to eliminate bump steer. Now i have a little problem. Seems the spur gear is an original one, marked 1/48P 100T. So it must be standard 48P right? The thing is i can only got up to a 23T pinion, but kyoshos manual says i can go up to 25T. How come i cant push my motor more forward? Am i missing something here? Also is the hyperclutch reliable? I think this is the same clutch as the Triumph's. I have not really run the car yet, i can only do so next week a day before the race. I appreciate any advice you can give me regarding setup and durability. Because i am the only guy running a 19 year old car, and i want to make a good or respectable showing. I see many of the newer cars snapping their arms and whatnot. The track is very bumpy at places and even the pros are flipping their cars at the bumpy sections.
Oh yeah, i am using a turbo less Brushless ESC with 10.5T motor, and the race runs for 15 minutes. When i was runniong my optima Mid with gear diffs, i notice that the diff tends to unload especially if landing not completely flat. Its like if i land a bit to the left with my car still on power, when suddenly all wheels toucdown, the car will pull to one direction abruptly. Will a ball diff solve this problem?

Yes the 1/48p is standard 48 pitch its the sopurgear for the kyosho triumph TM-7

When using the MKII the batteries are moved rearward and that means that also the rear upperdeck mount is moved rearwards so there is not as much space for the motor compared to the zx/zxr

mvh Isobarik