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First LS9X clutch in a C5

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Old May 9, 2011 | 09:18 AM
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Default First LS9X clutch in a C5

Katech has been hard at work expanding the LS9X and LS9R clutch lines to other models. After starting with the C6 Corvette, we now have applications for 2010+ Camaro, Pontiac G8, Cadillac CTS-V, F-body, and GTO. C5 Corvette has always been a very important application for us, but has proven to be the most difficult. Many changes were required to fit the package in the C5 bellhousing's limited space, but the prototype has been successful. The prototype car drives like a dream, as does all LS9X/LS9R applications.

Price: TBD
Availability: Late summer


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Old May 9, 2011 | 09:29 AM
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Good to see you guys finally getting the C5 dimension problem resolved on these. You folks have been front-runners in engineering for quite awhile. Kudos!

If this had been available back when I was looking for a clutch, I would definitely have given it consideration, but it wasn't; for the reasons you mentioned.

Tip: ask the bean-counters to not bend us C5 owners over too far come time to set the price.
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Old May 9, 2011 | 10:08 AM
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Originally Posted by LoneStarFRC
Good to see you guys finally getting the C5 dimension problem resolved on these. You folks have been front-runners in engineering for quite awhile. Kudos!

If this had been available back when I was looking for a clutch, I would definitely have given it consideration, but it wasn't; for the reasons you mentioned.

Tip: ask the bean-counters to not bend us C5 owners over too far come time to set the price.
That is what we are working on right now - trying to figure out how to mass produce them and keep the price reasonable. That is why we're saying late summer availability. There were a lot of custom parts that needed to be manufactured to overcome the limited space. The prototype slave cylinder costs about $1000. As you can see we need to figure out how to produce them efficiently to keep the kit cost within a reasonable level.
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Old May 9, 2011 | 10:18 AM
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Originally Posted by Katech_Jason
That is what we are working on right now - trying to figure out how to mass produce them and keep the price reasonable. That is why we're saying late summer availability. There were a lot of custom parts that needed to be manufactured to overcome the limited space. The prototype slave cylinder costs about $1000. As you can see we need to figure out how to produce them efficiently to keep the kit cost within a reasonable level.
I hear ya on the R&D costs and the need to turn a profit.

What's a little unique here though may be the fact that the C5 production run is over and therefore the overall market is more limited than say, the C6, CTS-V, or Gen5 Camaro, etc which are still being produced. As I see it, if the price is too high, an already limited C5 market may decide to pass.

It's a real balancing act between low-enough price and high enough volume to recoup R&D/production costs and make a profit.
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Old May 9, 2011 | 02:33 PM
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What kind of power is the prototype car making? This is very promising to those of us making a decent amount of power
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Old May 9, 2011 | 03:09 PM
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Originally Posted by tlove32
What kind of power is the prototype car making? This is very promising to those of us making a decent amount of power
It's a stock engine. Just used as a platform to test the prototype. Torque capacity of the LS9X is 800 ft-lbs. The LS9R is 900 ft-lbs.
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Old May 10, 2011 | 03:52 AM
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Congrats on making it work. I hope you're able to price it reasonably as it seems like a good option.
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Old May 10, 2011 | 05:43 AM
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What is the difference between the "LS9X" and the "LS9R"?
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Old May 10, 2011 | 08:28 AM
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Originally Posted by vettenuts
What is the difference between the "LS9X" and the "LS9R"?
LS9X uses the ZR1's clutch assembly from GM
LS9R is a modified clutch assembly direct from GM's supplier. The disk material is the same. The only change is in the pressure plate for 20% more torque capacity.
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Old May 10, 2011 | 01:50 PM
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Congratulations on engineering a tough problem. With all the clutches available on the market already, why did you choose to spend the R&D just to make a GM part work where it's not intended to? Is the design, weight, or some other factor that makes this clutch worth extra money, in an area that's already pretty spendy? Sorry if my questions sound a bit negative, but I'm just curious.
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Old May 10, 2011 | 02:23 PM
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Originally Posted by zeevette
Congratulations on engineering a tough problem. With all the clutches available on the market already, why did you choose to spend the R&D just to make a GM part work where it's not intended to? Is the design, weight, or some other factor that makes this clutch worth extra money, in an area that's already pretty spendy? Sorry if my questions sound a bit negative, but I'm just curious.
Our LS9X and LS9R clutches have been a home run. The sales have been better than we ever anticipated so it only makes sense to expand it to more applications. The clutch drives like a stock car and has 800 or 960 ft-lbs torque capacity respectively. It's perfectly quiet with no neutral noise. It's the combination of the torque capacity and drivability/silent operation that makes it different than everything else in the market today. We've expanded to 2010+ Camaro, G8, CTS-V, F-body and GTO. We've had a lot of request for a C5 application so it is something there is definitely a market for.
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Old May 10, 2011 | 06:16 PM
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Originally Posted by Katech_Jason
Our LS9X and LS9R clutches have been a home run. The sales have been better than we ever anticipated so it only makes sense to expand it to more applications. The clutch drives like a stock car and has 800 or 960 ft-lbs torque capacity respectively. It's perfectly quiet with no neutral noise. It's the combination of the torque capacity and drivability/silent operation that makes it different than everything else in the market today. We've expanded to 2010+ Camaro, G8, CTS-V, F-body and GTO. We've had a lot of request for a C5 application so it is something there is definitely a market for.
Thanks for the info. I recently installed a twin disc clutch in my car, and I can appreciate a stock-like clutch engagement. Mine holds great, but the engagement is much higher off the floor, and about 1/8", or at least that's what it feels like.
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Old May 10, 2011 | 09:16 PM
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Originally Posted by zeevette
Thanks for the info. I recently installed a twin disc clutch in my car, and I can appreciate a stock-like clutch engagement. Mine holds great, but the engagement is much higher off the floor, and about 1/8", or at least that's what it feels like.
I'm also running a twin and had the same problem with the engagement point. I had to install an adj master to correct the issue.

Good to see a new product in this much needed area. Hope you will be able to keep the price competitive with others out there. Lots of folks looking for quality clutch that will hold good power w/o chatter or the neutral noise issue and doesn't have a heavy pedal for a reasonable price.

Last edited by Z06ufgrad2002; May 10, 2011 at 09:19 PM.
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Old Nov 22, 2011 | 04:28 PM
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Any updates on the status of this project?
Eager to place an order if yes.
Thanks,
- Max
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Old Nov 22, 2011 | 04:32 PM
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Originally Posted by MadMaxZ06
Any updates on the status of this project?
Eager to place an order if yes.
Thanks,
- Max
We are waiting on some components from an outside supplier. They were promised in September, haven't arrived yet and they can not provide any date that we will have them.
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Old Nov 22, 2011 | 04:44 PM
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Do you think that the C5 version will still be coming to market?
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Old Nov 22, 2011 | 04:47 PM
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Originally Posted by 7LitreC5
Do you think that the C5 version will still be coming to market?
Yes. Good things will come to those who wait. We could make it right now if I ordered these parts through another source, but it will add about $150 to the cost of the kit. These are already going to be the highest cost LS9X clutch kit we sell, so I'm trying to keep the price as reasonable as possible.
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Old Nov 22, 2011 | 04:50 PM
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That's good news! Somehow I missed this thread when it was originally posted.
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Old Nov 23, 2011 | 01:59 PM
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EXCELLENT news! I'm glad I checked-in. This will be my next clutch.
Thanks Jason,
- Max
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Old Jan 7, 2012 | 03:18 PM
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Any news on this?
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