HPI MICRO RS4's

[Barry_Hughes]

Want to race your RS4 Micro in Suffolk?

Coastal Model Car Racing Club's Wednesday night meetings are expanding as more drivers get the bug.

Rules are simple you must use the standard kit motor or the Orion stock replacement otherwise any hop ups allowed.

It is best to use the 7.2v 6 cell pack

40 laps (nearly) in 5 mins! close racing you got it!

See the micro section at www.cmcrc.co.uk

[perkins1985]

Which is the best motor to get for the micro, i want to upgrade from the standard, i have the team orion mirco flash speedo

[Barry_Hughes]

Depends what you want to do with it and spend!

The fastest is probably the Big Block motor, it takes a different motor mount and fits best into the 150mm layout due to it's size.

Otherwise it is the Orion Coreless motor which is as fast but twice the price, it does fit without any modifications

[perkins1985]

do any more companies do the micro motors and acc. other than hpi and orion

[Barry_Hughes]

Not in the UK, you can get Peak versions in the US, but I have not seen any yet in the UK

[Ben Goodwin]

Not in the UK, you can get Peak versions in the US, but I have not seen any yet in the UK


i was told be my model shop that u have to get a conveshion form us to english

true or c**p

[perkins1985]

how much is the conversion

[Ben Goodwin]

how much is the conversion


bout £12

[Barry_Hughes]

You only need a different motor mounting plate if you go for the Big Block version, since this is needed if you run the Orion Big Block.

The mount is available seperately or can be purchsed as a unit with the big block motor.

Peak also do a standard Micro sized modified motor which does not need any modifications at all as it is a direct replacement for the standard motor. This also the case with the Orion Modified and Coreless motors.

Trinity are introducing a 1/18th car in the States so it may well be we will see Trinity Micro Motors as well.

Since these motors are all sealed it is more than likely they come from the same factory and only have different labels on them.

The most important item for speed though is a 7.2volt pack to provide the power.

Hope that helps.

[B_Final_Bob]

I am very interested in these!! What tyres do you run indoors on carpet, as I have noticed that TRC and Team Orion make foams, or do the kit tyres work well?

I have heard that these cars with the modified motors have been killing 12th scales! Hopefully not true :'( but it would be a site to see!

[KRob]

I've just bought one actually,
And belive me when I say to get them to beat a 12th car needs alot of work :o

Mine is a standard car, with kit motor and 7.2v battery, fitted with Orion 'hard' foams, running on our local track with 12th cars.

I have to cut down to about half speed to stop grip rolling :(
I think the standard chassis are far too flexible.

[Barry_Hughes]

Liam,

We race indoors on carpet, Kit front tyres and either HPI Soft or Fastrax Med or Soft on the rear works very well.

K Rob
The kit chassis is pretty stiff, I have used a Carbon chassis but it gives even more grip causing the car to roll.
I would suggest going to the rubber tyres as these will decrease the grip, as even though you are using hard foams, my guess is they are still generating too much grip causing the grip roll.

Try the above set up

[KRob]

Hi Barry,
I ran the kit rubber tyres, and it was too loose at the back, I haven't tried any other tyres yet so I may have to.
Surely another reason for grip roll is that it is a reasonably narrow car, but the centre of gravity is quite high.
And of course the 'dampers' have no damping ::)

[markwilliamson2001]

Have you tried it on the polished wood yet?
Might have to get some cut and shut minipins ;D
Has anyone else got one, and have you raced against them yet?

M.

[Barry_Hughes]

KRob

Yeah, with kit tyres all round the back is loose, that's why you need softer rears with the kit fronts.

You can get different rate springs for front and rear, fronts seem to make more difference than rears.

Also you can alter the damping of the shocks by putting gease of different viscosities in the outer casing before putting the piston in.

Also bodies make a difference and wheelbase, we have found 150 mm is the most stable, VW bodyshell the worst, I use either a Porsche 911 GT1, Toyota GT One or Ferrari 360. the 360 seems the best all round body

[Barry_Hughes]

Have you tried it on the polished wood yet?
Might have to get some cut and shut minipins ;D
Has anyone else got one, and have you raced against them yet?

M.


Where are you going to get mini pins from?
Standard Touring car tyres would be virtually impossible to cut down to fit.

[Lee Carr]

Has any one tried the 540 motor converstion from the States? :o

[KRob]

Thanks Barry,

First job was to grease the dampers, and I'll look into some other tyres.
Also getting a sportscar shell is a must, for looks primarily ;D, but it has to handle as well.

There are a few others getting Micros in the Swindon area, I just need to persuade them to come along and race ;)

[Dynamite Arrows]

:) It is possible to make cut and shut minipin tyres for Micro cars. We used to run them at Stocksbridge. The sidewall is eliminated, they give the car a very bumpy ride and it is quite difficult to get them to run true especially where the ends meet.

[Stew Noble]

im getting a micro very soon (cos there sooooo cool ;D ;D ;D). Is there anything i should do/be careful of/not do, when building it?

thanks

stew

[Phil C]

So which are the best cells to purchase for racing? I have seen on sites ways of using 5 sub-c cells. Also which is the best orion carbon fibre chassis conversion? Cheers Phil C.

M I C R O S R U L E