[Welshy40]

Originally Posted by alcyon

I still dont agree with you about the brakes. i understand you're not the type to apply brakes, i did drive like that 3 years ago with my touring cars when brushless had no boost or turbo. however you dont get what i am trying to say. even though you dont use brakes in the finger sense, but as soon as you let of the gas, your motor has some drag in it that will cause your spur gear to slow down, thus transferring this drag to your rear wheels,--if you use a front one way. That means your car will still slow down reasonably fast. If you were to use a reverse one way on the rear and a one way on the front, what will happen is when you let off the gas, the motors inherent drag will stop the spur gear from moving, becuase the rear pulley is freewheeling and has no friction against the shaft. so what will happen is your car will keep rolling, and it will keep rolling very very fast ! so fast that even when you turn the steering full lock your car will understeer terrbily. the reason you have a lot of turn in with the front one way is becuase the motors off throttle drag will slow down the rear pulley and the rear diff, rear wheel brakes if you will.

Ok since i am done explaining why the one way wont work, okay we can get to use LA-56.fact is i have an LA-56 with me right now. in order to use the b4 plate properly you need to cut off the LA-56 by 4.7mm. but you will also cut off the existing M3 tap hole for the setscrew, that means you have to re drill and re tap..maybe you and i could do that, but what about the rest of the Lazer freaks? i also found out something odd about the ZX-R layshaft and the ZX.
with the ZX, there is a 1mm gap between pulleys. with the ZX-R there is none. look at these 2 drawings.

pic 1. original ZX shaft assembly. note the important dimensions to place the pulley correctly so that it will line up with the diffs.
pic 2. My new ZX-B4 shaft asembly. notice i revised a few dimensions which was out by 0.5mm. i need to send you the revised drawing welshy.

ok i know you requested the layshaft so that you can use LA-56..i will do that for you, but also allow me to go ahead with the Misumi pulley design, and show the proposal to everyone to have a look.

The zxr pulley has no gap as there is no thrust washer in between the pulleys, more of a solid alloy washer so is the reason why there is a difference between the ZX and R

Yes I notoced the LA56 will cut away the allen screw and redrilling is a pain for most so kindof see where your coming from.

In answer to your first question, if the drive train is really free and the belts are really loose then when you back off the power for a corner you get oversteer (your explanation is pretty much on the ball) but I like more steering so have 7.5 degrees on the front and means I dont really need to power into the corner as much as when you leave the apex and the car is really free so power or not its quick. My set up isnt there yet but when finished I aim to drive flat out down the straight and into the corner tight with no grip roll or issues, then it will be set up right (as I drove it in the 90's), but as with everything work is still needed to get this right.

Im having fun, and glad your on board as your layshaft design is going to take this car to a new level.