[fouldsc]

I have a couple of scalextric F1 cars , I have put on some indy grips along with a professor motor gold magnet and although I now got loads of grip the magnet is a bit to strong for the motor

I am new to the changing the motor scene and was wondering if someone could
advise me to which is the best drop in replacement for this motor ?
Max straight is not much above 8-9 standard straights (so say 3 meters).
I don't want to change rear axel or crown , just want a drop in replacement
motor - so must have crown attached , really after a motor with
more torque but higher top end would be nice as well.

Thanks in advance.

Chris

 

[peter]

with that short distance - it does seem to me that the greatest concern is hardly 'maximum speed' but rather 'maximum acceleration' - cannot imagine that you would ever max out in top speed on that kind of distances you describe. Basically what is the point of a high top speed if you never reach it on the short straight of yours? I would have expected that change of gear would be of greater interest than anything else in this situation. Someone else on this forum might have a better informed comment on this than me though..

//peter

 

[fouldsc]

QUOTE with that short distance - it does seem to me that the greatest concern is hardly 'maximum speed' but rather 'maximum acceleration'
That was why I was asking about motors that would provide me with more
torque than anything , with greater torque I will get upto higher speed quicker,
so in theory should give me a higher top end.

 

[Vinno1]

I think what Peter is trying to say is you may be better off changing the crown than the motor. A 28 instead of the standard 27 would be cheaper and more able to push the stronger magnet and as you said you only have shortish straights.
Your only problem is finding a 28 to fit the Scalextric rear axle. If you do it would be easier to file down the Knurl a touch under the wheels once removed as it will make it easier to slide off the crown. It isn't too hard if you are careful.

You could try putting an 8 tooth on the motor but this will lower your gear ratio more than putting a 28 crown on the axle. Probably the easiest option though. Make sure the pitch suits the crown though.

The problem with changing the motor is that the style of motor in the Scalextric F1 is low on torque and the revier motors are even more so.

 

[fouldsc]

Thanks for that - will have a look at changing the crown.

Chris

 

[Mr Croker]

Definately change the ratio. MRRC do an 8T plastic pinion or if you really want to go for Proslot do a 8T pinion and a 30T crownwheel (from the GT1 Toyota).

Be a little careful with the pinion a take a small round needle file to the inside to allow it to slip on to the motor output shaft a little easier. The plastic is a little brittle and might crack.

A Ninco NC4 would be a good move too. You may need to trim around the motor pod though.

Mr C