or run the RW layshaft with a B4 slipper and run 48dp gears.....

I know they are different, but when built, I think they may give the same size...

Did you say it is possible to run 48dp with .5 module steve? as thats what I'll have to do since I have no .5 pinions

you can, but it will be noisey and bugger up the spur within a few runs.

Sorry for the questions guys, but there is a definate learning with this Dark Impact for me as my background is messing with crawlers;)

But, it looks like I might plum for the "RW layshaft with a B4 slipper and run 48dp gears". So can someone PM me with regards to what is a good size pinion/spur to use and also where/how to go about getting the needed parts.

Again my apologies for the nooby "Q's":confused:

Oh well, .5 pinions it is then :jimmeh

I would think a range of 24 to 29 would do you, that would cover stock/19t up to a 10 or a 12 turn motor, go with the 78 or 81 tooth spur gear.

www.rwracing.co.uk and either email or call him, the shaft isn't up on the website.

TAM DF-03
78 81
PIN 17 14.02 14.56
18 13.24 13.75
19 12.54 13.02
20 11.91 12.37
21 11.35 11.78
22 10.83 11.25
23 10.36 10.76
24 9.93 10.3
25 9.53 9.90
26 9.16 9.52
27 8.82 9.16
28 8.51 8.84

who makes .5 pinions ? I trust its not just tamiya ?

Jimmy,

http://www2.towerhobbies.com/cgi-bin...r+12t&FVPROFIL=++

Robinson Racing do. They do a full range as well.

They work in my Madcap and Vanquish.

Elliott.

I nearly have enough bits to get started on the build of my Dark Impact - just waiting for postie to fetch the last bits.

My spec looks like this ...

Single piece rear diff outdrives (from stellamodels)
3 racing stainless turnbuckles
3 racing motor plate
centre one way
white wheels (bound to be faster)
Tamiya spring set
DF02 universals front and rear
yeah racing locking hex hubs
RW layshaft and B4 slipper

I have dremelled my chassis to accept my LiPo pack (looks stock unless you look closely)

I will be using the std shocks (with the Tamiya spring kit) and towers etc for the 'Q-Ship' effect.

Steve can you suggest a ratio for a 11x2

Robinson calls these "Metric 48 pitch" but they really are the same size as Tamiya 0.6 module (Tamiya calls them AV pinions nowadays).

They are NOT 0.5 module and they are a lot bigger than imperial 48 pitch.

If you dig out your Tamiya pinions from your M-03, DF-02, TT-01, TB-01, TA-05 (stock), you will see what 0.6 module looks like.

DF-03 is 0.5 module. As far as I know DF-03 and Super Astute are the only cars with 0.5 module, so I don't think Robinson are going to make these pinions.

I'll what the 48dp pinions fit like, but I cant see it being too hard to fit a b4 spur on the tamiya slipper, but we'll see! Not much point reviewing a slipper that no one can buy.

I'm wrong about the Robinson pinions fitting the DI then. OK. I was intending to check them last night. But didn't get round to it.

Elliott.

Make everything 48dp I say

Rob, 78/23 I would start with and go larger on the pinion from there, I ran a 78/28 on a 19t on the weekend.

Thanks Steve

This is my B4 Slipper in place....

http://i82.photobucket.com/albums/j2...lipperDI-7.jpg

Any chance of a build up or part numbers for the B4 slipper and RW layshaft.

Looks good btw;)

you need to email RW Racing for the shaft (www.rwracing.co.uk)([email protected])

B4 Slipper Hub x2 (alloy bit) 9604
B4 Slipper Pad x2 9603
B4 81t Spur 9651
B4 Slipper Spring 9605

The layshaft also uses an M3 nut to keep the hardware metric.

Just to let you know, the front Diff outdrives fit the rear, no problems, I just fitted mine, that will stop the diff plate slipping on the plastic holders, best I go find a hairy motor then!!!

Thanks for the parts numbers, much appreciated ;)

Im on the case :cool: