Clutch recommendations for a 2005 LQ4 Swap

Jan 15, 2018
63
Orchard Park NY
Looking for thoughts on a clutch kit and flywheel.. I'm guessing between 450-500 HP based on the research I have done... TKX is the transmission.. I'm looking for easy street friendly manners that I will run through gears for fun occasionally...

Thoughts on a twin? Summit was pushing this one..

Summit Racing SUM-700901 Summit Racing® Pro Twin Clutch Kits | Summit Racing

Or should something like this be more friendly on the left leg? My wife wants to drive this..

GM LS7 Clutch & Flywheel Package for ALL LSx Applications - Tick Performance, Inc.
 

73Z L92

Veteran Member
Jan 25, 2011
436
Carlos, MN
I've used the LS7 setup on a couple LS swaps and they worked well. RWHP on the LS1 was 385. The LS3 was 425 RWHP. I used a 2002 Fbody slave. Get a speed bleeder from a vendor like Tick.
 

badazz81z28

Veteran Member
May 4, 2001
21,796
Alabama
How is the street manors on your twin? How does the leg pressure compare to a stock clutch? Any chatter?

It comes down to surface area. With a single disc, there is a certain amount of surface are. When you need a clutch for performance use, you need it to hold. With a single clutch, this is done with more plate pressure and aggressive clutch material. You end up with a clutch with a heavy pedal, aggressive engagement and in a lot of cases noise.

With a twin, you have more friction area. Because of this, it uses less aggressive clutch material and less plate pressure. You can have a clutch that will hold 800-1000hp and operate like a OE clutch. With my McLeod RXT, it drives like a low performance stock clutch.
When I had a Monster stage 2 and a puck stage 3, it was aggressive like a on-off switch, made noise. The pedal pressure wasn’t that bad, but the RXT is way better.
 
Jan 15, 2018
63
Orchard Park NY
It comes down to surface area. With a single disc, there is a certain amount of surface are. When you need a clutch for performance use, you need it to hold. With a single clutch, this is done with more plate pressure and aggressive clutch material. You end up with a clutch with a heavy pedal, aggressive engagement and in a lot of cases noise.

With a twin, you have more friction area. Because of this, it uses less aggressive clutch material and less plate pressure. You can have a clutch that will hold 800-1000hp and operate like a OE clutch. With my McLeod RXT, it drives like a low performance stock clutch.
When I had a Monster stage 2 and a puck stage 3, it was aggressive like a on-off switch, made noise. The pedal pressure wasn’t that bad, but the RXT is way better.

Thank you! This was the insight I was hoping for... Someone who has experience with both.. I really want to something the wife can get in and drive without any issues.. I was thinking summits version "Pro Twin Disk Clutch with Billet Steel Flywheel and Organic disks rated at 700 Ft./Lbs." Might be a good option at 800 bucks...

Do you get any rattling with the middle disk??
 
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