Racing Clutch?

[AC48]

Does the HPI Nitro Racing Clutch fit on a stock RS43 SS anyone know??

 

[Pedester]

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLW03&P=7

If thats the clutch your refurring to, I think it slides right on.
Is the RS4 3 clutchbell any different from most others?

 

[AC48]

Yup, that's the one , i don't know if they are different, that's why i was asking

Also, what are the three holes for?

 

[joneser4u]

The tree holes are for differant engagment times you can also trim the clutch and tighten the spring for more adjustment.

 

[olds97_lss]

Not sure whether it fits or not, but the holes are for clutch settings. You obviously use one on each shoe. The closer to the end you mount it, the heavier the clutch is. The closer to the middle you mount it, the lighter the clutch is.

By heavier and lighter, I mean grabbyness and rpm it engages. If your mounting it on an engine that has it's powerband in the mid to high side of the rpms, you mount it closer to the center to make it lighter, which in turn makes it kick in at a higher rpm. If your engine has it's powerband in the lower end of the spectrum, you mount closer to the end of the shoe so it grabs lower in the rpm range.

 

[AC48]

Thanks... it should come in on thursday, i'l let you know if it fits

It will be on a 12 R SS which definetly has a powerband in the higher RPMs so I should put it on the middle hole, right?

 

[olds97_lss]

I would think so. I have it on my os 15 cv-r(x) on my sportmaxx. I mounted it on the middle holes as well so I could get up to a higher rpm for take off.

 

[AC48]

Well, i'm happy because it came in a day early and it did fit right on...thanks for your help. I put it on the middles holes for a better take off and it made a huge difference. A great hop-up.

 

[bennyboy444]

i bought it too and i don't see any difference,maybe me!

 

[bennyboy444]

they said to cut the hole that you dont use,is it true?

 

[olds97_lss]

Who is they? I didn't and I notice a difference if I use one set vs the other.

 

[bennyboy444]

on the sheet that come with the clutch.

here it is:

The clutch shoes have three mounting holes for three different
adjustments.
-First set-up is mounted in the first hole in the clutch bell,
this allows the clutch to engage at low RPM's for smooth
acceleration.
-Second set-up is mounted in the second hole in the clutch bell,
then the excess clutch bell is removed (the first mounting hole is
cut off), this allows the clutch to engage at higher RPM's for more
bottom end.
-Third set-up is mounted in the third hole in the clutch bell,
then the excess clutch bell is removed (the second mounting hole is
cut off), this allows the clutch to engage at higher RPM's for even
more bottom end, and is good for high bite tracks

you suppose the cut the holes that you don't use????

 

[olds97_lss]

Like I said, I didn't and it works fine for me. If I want to change it back I don't need to buy another set of shoes either.

I think mine only had 2 sets of holes though. I don't remember for sure.

 

[bennyboy444]

i think i make a mistake by cutting the clutch!

 

[olds97_lss]

If it still works, then it works! But you can't change it back obviously. Just try it differently next time to see if you get the same results.

 

[AC48]

Yeah you do cut out the holes, i did and it works great.

 

[bennyboy444]

so if i understand well you cut the hole that you don't use!So you to buy 3 clutches to have 3 different setting.right?

 

[AC48]

You don't have to cut the extra hole but it is reccomended by HPI to do so.

 

[RandyT]

The idea behind trimming the clutch shoes is to lighten them. The lighter the clutch shoes the higher the RPM's necessary to make them engage. If you motor isn't strong enough, you shouldn't use the inner most holes and trim. Good luck.

 

[olds97_lss]

I understand trimming the other end where the clutch engages to make it lighter, but trimming the end by the hole doesn't make any sense. There isn't any inertia at that spot that trimming would help or hinder.