Aftermarket Clutch

[MoparJohn]

Looking for suggestions for an aftermarket clutch. Stock horsepower.

[Policy Limits]

Kevlar is carbon with great wear. Most Lamborghini guys replace with that after stock is spent. Not sure if they make product that fits the snake though.

[Voice of Reason]

Everyone seems to love the Nth Moto clutch. It’s pricy but what I’ll be getting when the time comes.

[AZTVR]

Kevlar is carbon with great wear. Most Lamborghini guys replace with that after stock is spent. Not sure if they make product that fits the snake though.

I think that Kevlar is a synthetic fiber, not carbon, if I am not mistaken.

[Policy Limits]

Not sure but I hear 400% greater wear on a bull. Pretty good as those clutch changes are five figure services.

[slowhatch]

Hear nothing but good things about nth moto's clutch, and hear nothing but problems about all other clutches...

[KB Viper]

I have the Nth Moto clutch and it's an amazing piece, it is a little stiffer then stock, has a mid level progressive release (like stock), and does not chatter at all. I had the Mcloed also and the Mcloed chatters, has a super high release, and has an on/off style of engagement. To me even at 2x the price of a Mcloed it was worth it for something you use so frequently when driving a Viper.

[nuviper]

Hi guys, how do you check whether you should get a new clutch or not? Sorry for this stupid question since viper is my first manual car...

[slowhatch]

Hi guys, how do you check whether you should get a new clutch or not? Sorry for this stupid question since viper is my first manual car...

1st gear clutch in, let the clutch out slowly to the engagement point. If it is all the way at the top of the pedal travel, you may be worn down.

5th gear, go WOT from 2k rpm. If revs rise without acceleration, you need a new clutch.

[Policy Limits]

What's average mileage with street driving for a clutch change? At 8k on my GTS clutch engagement was the same as when I broke her in. And that was even after a couple of track days...

[LmeaViper]

1st gear clutch in, let the clutch out slowly to the engagement point. If it is all the way at the top of the pedal travel, you may be worn down.

5th gear, go WOT from 2k rpm. If revs rise without acceleration, you need a new clutch.

I am going by memory here so don't take this a verbatim...but seems to me in my old Cobra, I put the car in 4th from a stop with emergency on and released the clutch slowly and raised my revs to launch and if the car wouldn't stall right away, then the clutch was gone.

[Jack B]

Pretty simple:
A. Does it grind going into gear with the car at rest.

B. Due to torque multiplication in first gear a slipping clutch will show up, just go wot at about from about a 15 mph roll.

[SilverACR]

Pretty simple:
A. Does it grind going into gear with the car at rest.

B. Due to torque multiplication in first gear a slipping clutch will show up, just go wot at about from about a 15 mph roll.

B. Be careful cuz if the clutch is good your back tires will be the weak link at turning fuel into forward motion. I know my gen 4 will absolutely boil the tires if I go WOT at 15mph in first gear. Maybe in a gen V with traction control it’ll keep you under control, but then again I don’t know who all would be reading this and what cars/ level of driving experience they’ll have. Tread carefully if your new to the viper.

The 5th gear test Slowhatch posted would be a lot safer and would tell you the same thing.

@jack B I assume from you avatar that your method and experience would probably relate well to the drag strip/ prepped track. Not trying to put down the method just want to warn non traction control/ newer owners:)) no offense to you

[Redx]

NTH if you can swing it for sure.

I have a mcleod rxt spec'd by dan cragin, beat the piss out of it and holds every time. A little bit of chatter vs stock but nothing worth mentioning. Cutting 1.60 60's with just bolt ons.

[Jack B]

B. Be careful cuz if the clutch is good your back tires will be the weak link at turning fuel into forward motion. I know my gen 4 will absolutely boil the tires if I go WOT at 15mph in first gear. Maybe in a gen V with traction control it’ll keep you under control, but then again I don’t know who all would be reading this and what cars/ level of driving experience they’ll have. Tread carefully if your new to the viper.

The 5th gear test Slowhatch posted would be a lot safer and would tell you the same thing.

@jack B I assume from you avatar that your method and experience would probably relate well to the drag strip/ prepped track. Not trying to put down the method just want to warn non traction control/ newer owners:)) no offense to you

I have had more than one aftermarket clutch fail in my G5 and it always showed up in first gear before showing up in the higher gears. Your comment is 100% correct for every car I have owned prior to the G5. You are also correct, you must have traction for this test to work. On a warm day (road surface warm), I would roll (not abruptly) into wot from about 10 mph, this is where I would see the slippage. My observations are even more pronounced for ceramic disks, some ceramics need heat to get sticky.

I actually put a sensor on the drive shaft, the logger now picks up clutch slippage. i never said the afore-described method is the only way to diagnose a bad clutch, it is one way, however, it is supported by observations with multiple aftermarket clutches on a G5.

This just an opinion, the oem clutch is not bad unless you run slicks, then, you need to change. The problem with replacing an oem clutch with another oem clutch is, you are using the the original oem flywheel and it is probably glazed, therefore, you are introducing a partial problem with a new clutch. Lastly, the oem clutch is not expensive, however, when coupled with a new flywheel, it starts to get expensive.

With all that said, I am now running a Nth Moto clutch and all I can say, it is amazing.

[Vipes]

This just an opinion, the oem clutch is not bad unless you run slicks, then, you need to change. The problem with replacing an oem clutch with another oem clutch is, you are using the the original oem flywheel and it is probably glazed, therefore, you are introducing a partial problem with a new clutch. Lastly, the oem clutch is not expensive, however, when coupled with a new flywheel, it starts to get expensive.

With all that said, I am now running a Nth Moto clutch and all I can say, it is amazing.

Good point Jack. Can't you just resurface the OEM flywheel?