Stage 3 Pressure Plate & Stock Cable?

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risk
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Stage 3 Pressure Plate & Stock Cable?

Post by risk » Tue Apr 05, 2016 3:58 pm

Anyone using a kennedy stage 3 (2600lb) pressure plate with the stock clutch cable setup? Will the clutch cable tube and spot welds hold up okay?

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Marc
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by Marc » Tue Apr 05, 2016 4:07 pm

Considering that the clutch tube welds sometimes break with a stock cover, I don't think there'd be high hopes for them lasting forever with a Stage 3...although there's probably some who've managed to get away with it.
Going to the late, long release lever at the cross-shaft will make life easier on the welds and your leg.
It'll also increase the pedal travel needed, but that's rarely an issue.

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risk
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by risk » Wed Apr 06, 2016 8:31 am

Funny you mention the longer release lever.. I'm running a kennedy stage 2 pp & diamondback disc.. the extra pressure it takes to engage it is really annoying in stop and go traffic. So, I read about the longer clutch arm.. hmm.. I cut two levers apart and made a long one (added 1 inch), but I could not get enough travel to fully engage the clutch. I ended up taking it back off, and removed about 1/2" inch... works great and it feels a lot closer to the stock setup.

I started with a Kennedy stage 2 and copperhead disc. When I switched to E85 it began to slip in 3rd & 4th, so I went to a diamondback disc (looks like a grinding wheel). This stopped the slip, but....

Then I added an intercooler, and it has started slipping in 3rd & 4th again. Thinking the disc had glazed over, I pulled the disc and bead blasted it. Still slips at the top of 3rd.. So it's time to bump up the pressure plate to a stage 3.

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ps2375
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by ps2375 » Wed Apr 06, 2016 10:04 am

Are you sure the steps on the FW are machined correctly? That or you must really be making a whole bunch of TQ.

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Chip Birks
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by Chip Birks » Wed Apr 06, 2016 10:39 am

I have a stage 3 and diamond back and long arm. Worked good till last summer. Broke all three connection points. Never hurt my cable though. I do think I'm starting to push the limits of the stage 3. I need to start monitoring clutch slip one of these days. Big boost and a 2000lb car don't help. Super happy with the combo so far though. Smooth engagement, comfortable pedal, and good hold 95% of the time.

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risk
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by risk » Wed Apr 06, 2016 2:22 pm

Flywheel is good.. although I have never measured the clutch breakaway torque. I have a 2276 running E85, intercooled and turbo'd. It's just overpowering my clutch setup.

So you broke the spot welds loose in the tunnel, chip? I wonder if some extra welds via the shift coupler access hole would be enough to hold up..

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Chip Birks
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by Chip Birks » Wed Apr 06, 2016 2:31 pm

risk wrote:Flywheel is good.. although I have never measured the clutch breakaway torque. I have a 2276 running E85, intercooled and turbo'd. It's just overpowering my clutch setup.

So you broke the spot welds loose in the tunnel, chip? I wonder if some extra welds via the shift coupler access hole would be enough to hold up..
The tube was floating when all was said and done :D
Nice and sturdy now though.

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Re: Stage 3 Pressure Plate & Stock Cable?

Post by Ol'fogasaurus » Wed Apr 06, 2016 7:31 pm

I would start to worry about the area the cross shaft runs through too. Worry about the throwout bearing fingers also. You are putting a lot of loading on stock, lighter weight things with that strong of a clutch cover.

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risk
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Re: Stage 3 Pressure Plate & Stock Cable?

Post by risk » Tue Feb 14, 2017 9:28 am

Decided to ditch the idea of a stage 3 and sent my flywheel off to Kennedy today for their dual disc clutch conversion.

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Re: Stage 3 Pressure Plate & Stock Cable?

Post by Piledriver » Sun Feb 19, 2017 11:24 pm

risk wrote:
Tue Feb 14, 2017 9:28 am
Decided to ditch the idea of a stage 3 and sent my flywheel off to Kennedy today for their dual disc clutch conversion.
Good Plan.
I, for one, regularly embrace our new robot overlords, as I am the guy fixing the robots...

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