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Old 07-27-2004, 07:23 PM   #1
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Default Questions On HPI Racing Clutch For RS4 2...

Alright, I have a Racing Clutch for my RS4 2. There are 3 holes to setup on on the Flywheel.

Which one do you think it would be best to use if I was wanting a an all-around setup, with fast acceleration and high top end? I will be also installing a 2 Speed Transmission for more top end.

Thanks.
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Old 07-27-2004, 08:00 PM   #2
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Also does HPI have a 2-Speed Car Gear Ratio Chart anywhere on there site?

I found one for electric, but no Nitro.
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Old 07-27-2004, 09:00 PM   #3
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The first setting to the left on the racing clutch is all you really need.
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Old 07-27-2004, 09:09 PM   #4
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Alright, so the middle hole.

Thanks.

I'll post here if I have any problems with it. But I won't have my car til next monday, but its always good be prepared and read up on stuff.
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Old 07-27-2004, 09:18 PM   #5
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I use the 2nd (middle) hole setting on my nitro sedan. More snappier acceleration. The 1st one is more for smoother acceleration especially if you're on a surface with less traction.
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Old 07-27-2004, 10:28 PM   #6
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No for starters put the clutch on this hole here *below* sorry if I wasn't clear enough... lol



The second and third hole will be way too stressful on the drivetrain and engine itself ,it may cause excessive wear and possible failure on these parts (dogbones, outdrives, transmission shaft etc.).

But if you insist to experiment here are the settings for each hole on the racing clutch enjoy.

1st set-up is mounted in the first hole in the clutch bell,
this allows the clutch to engage at low RPMīs for smooth
acceleration.

2nd 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 RPMīs for more
bottom end.

3rd 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 RPMīs for even
more bottom end, and is good for high bite tracks.

Last edited by Schneller_101; 07-27-2004 at 10:33 PM.
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Old 07-27-2004, 10:39 PM   #7
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Alright will do.

Well I'll be using the higher end of Transmission gears to get more topend. Probally one of the top 3 highest gear setups I can use. I'll also be running a HPI Nitro Star 12R SC Motor, Lightweight Flywheel, Fiber Disc Brake, MIP Shiny CVD's, Roll Center Plates, ect.

Does anyone have a list of all the HPI Transmisson Gears and Clutchbells? I need a list so I know what to buy. So far I only have the Heavy Duty 2-Speed.
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Old 07-27-2004, 11:12 PM   #8
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I'm running 19/41 First and 22/37 Second Gear with my NSR .12 S5 and am pushing 65 miles per hour ,it doesn't get any better than that when I have plenty of room to lean her out more ,but you need quite a large space to allow it to wind up.

I will search for a gear chart ...
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Old 07-30-2004, 01:23 AM   #9
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I was using the 3rd hole on a fast high bite track. The punch was awesome but I kept shearing off the pins on the 2nd gear when it shifted. I guess the 2 speed problem was due to shifting high in the power band.
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Old 07-30-2004, 07:03 AM   #10
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Quote:
Originally posted by J Smith
Alright will do.

Well I'll be using the higher end of Transmission gears to get more topend. Probally one of the top 3 highest gear setups I can use. I'll also be running a HPI Nitro Star 12R SC Motor, Lightweight Flywheel, Fiber Disc Brake, MIP Shiny CVD's, Roll Center Plates, ect.

Does anyone have a list of all the HPI Transmisson Gears and Clutchbells? I need a list so I know what to buy. So far I only have the Heavy Duty 2-Speed.
The two-speed transmission comes with a gear chart w/ clutch bells and spur gears you can use.
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Old 07-30-2004, 07:15 AM   #11
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Quote:
Originally posted by kewdawg
The two-speed transmission comes with a gear chart w/ clutch bells and spur gears you can use.
Alright thanks. Wasn't sure if they came with one or not.

Quote:
Originally posted by Rapid Roy
I was using the 3rd hole on a fast high bite track. The punch was awesome but I kept shearing off the pins on the 2nd gear when it shifted. I guess the 2 speed problem was due to shifting high in the power band.
Is it true you don't have to cut the clutch shoes to mount on the 3rd and 2nd holes?
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Old 07-30-2004, 07:25 AM   #12
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Quote:
Originally posted by J Smith
Alright thanks. Wasn't sure if they came with one or not.



Is it true you don't have to cut the clutch shoes to mount on the 3rd and 2nd holes?
You do need to cut them. It won't have enough clearance, if you don't.
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Old 07-30-2004, 12:31 PM   #13
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You may need to shave off some clutch material to provide clearance and full movement around the clutchnut should you mount it in the 2nd or 3rd hole.
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