Clutch question?

[Dylan951]

So I’m going big turbo from a hybrid turbo turbo which is currently at about 300hp on e30. I’m still on the stock clutch which has been great. But I’ll need to upgrade for the power/torque numbers I’m looking to hit. So is the Spec stage 3+ the general consensus for the best clutch to buy or is there other better options?

 

[TyphoonFiST]

So I’m going big turbo from a hybrid turbo turbo which is currently at about 300hp on e30. I’m still on the stock clutch which has been great. But I’ll need to upgrade for the power/torque numbers I’m looking to hit. So is the Spec stage 3+ the general consensus for the best clutch to buy or is there other better options?

Are you going to stick with the Stock Dual Mass Flywheel? If so make sure the Friction disc isn't sprung. But if your going with a Single Mass Flywheel get a Sprung clutch disc. I am just days away from my install of the RTS Twin friction clutch with a SMF. Keep any eye out as i will try to get a DIY of the actual Trans removal also that others leave out. The spec 3+ is more than adequate and others have had luck with them with High HP setups.

 

[Dylan951]

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Are you going to stick with the Stock Dual Mass Flywheel? If so make sure the Friction disc isn't sprung. But if your going with a Single Mass Flywheel get a Sprung clutch disc. I am just days away from my install of the RTS Twin friction clutch with a SMF. Keep any eye out as i will try to get a DIY of the actual Trans removal also that others leave out. The spec 3+ is more than adequate and others have had luck with them with High HP setups.

Thanks dude, you’ve reply on anything I’ve posted and I appreciate your input

 

[Dylan951]

Are you going to stick with the Stock Dual Mass Flywheel? If so make sure the Friction disc isn't sprung. But if your going with a Single Mass Flywheel get a Sprung clutch disc. I am just days away from my install of the RTS Twin friction clutch with a SMF. Keep any eye out as i will try to get a DIY of the actual Trans removal also that others leave out. The spec 3+ is more than adequate and others have had luck with them with High HP setups.

1. What’s the advantage of going smf? 2. Why does it have to be sprung or unsprung depending on the flywheel? And I thought the spec stage 3+ only came with a sprung clutch disc?

 

[Lays]

1. What’s the advantage of going smf? 2. Why does it have to be sprung or unsprung depending on the flywheel? And I thought the spec stage 3+ only came with a sprung clutch disc?

The spec stage 3+ comes in sprung or solid, solid is for DMF, sprung is for SMF.

My buddy Wesley has gone ~11.50's in the 1/4 on a solid-disk Spec stage 3+ and OEM flywheel, it'll handle whatever you throw at it.

I have one awaiting install, just need to find time. I went 12.3 @ 113 with a slipping OEM clutch at ~370 whp and torque, I think the new clutch I should easily be able to dip into the 11's.

 

[LilPartyBox]

1. What’s the advantage of going smf? 2. Why does it have to be sprung or unsprung depending on the flywheel? And I thought the spec stage 3+ only came with a sprung clutch disc?

I'm oversimplifying but either the flywheel or the clutch has to be sprung to absorb the shock from the input shaft revolution as the clutch makes contact with the flywheel (which is connected to the input shaft). If not, the shock damages the gear sets and/or shaft seal over time.