Lightweight Clutch Package

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Old Jan 30, 2003 | 04:13 PM
  #1  
ComptechMike's Avatar
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5th Gear
 
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From: CA
Lightweight Clutch Package

Announcing Comptech's NEW CL-S 6-speed PowerGrip Clutch/Flywheel Package.

It's an all new, smoother running design. It weighs about 9.8 lbs. compared to 24.5 lbs. for the stock setup. That's a 60% reduction in rotating weight! This is a non-dual mass design and lets the engine accelerate much quicker while eliminating the driveline jerkiness during partial throttle/coasting and when leaving from a stop. The ignition timing triggers are fully integrated into the flywheel, too. The flywheel is machined from billet 6061 aluminum and features a tough, heat treated friction surface that could be replaced if ever needed. The clutch disc is an all new sprung hub design using components from our ultra successful NSX PowerGrip clutch assembly. This kit includes the aluminum flywheel, pilot bearing sprung disc and replacement flywheel bolts, and will reuse your original pressure plate. You won't be disapointed with the performance!

Even though this clutch upgrade was designed for the ultimate in street drivability, we also designed it to be tough enough to stand up to the power of a supercharger! We just had a car with this system evaluated by an Acura zone rep and here's what he had to say after driving it: "We almost didn't come back! I have this same car as my daily driver when I'm in LA and it's nothing like this car! It feels like it just wants to rev forever!"

We've just started production on this kit and aim to ship the first kits by early April. Price for the complete package is $999.
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Old Jan 30, 2003 | 05:56 PM
  #2  
Zapata's Avatar
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From: burbs of philly
Mike,
Thanks for all the hardwork!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! My mod list just got a little longer
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Old Jan 30, 2003 | 06:03 PM
  #3  
Nashua_Night_Hawk's Avatar
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From: Nashua, NH, USA
One extra-mod for Sscalbert, Shawn S, Zapta and AllMotor 2000.. guys start saving from now...
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Old Jan 30, 2003 | 06:44 PM
  #4  
ComptechMike's Avatar
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Anything I can do to keep you from having too much money in your pocket, you just let me know.

The first batch we are building will be relatively small and orders will be filled on a first come-first served basis. Order part #510-130.
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Old Jan 30, 2003 | 07:42 PM
  #5  
Zapata's Avatar
Cost Drivers!!!!
 
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From: burbs of philly
Mike,
not a problem at all!! Who will be making the clutch? Will it be organic?
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Old Jan 30, 2003 | 07:52 PM
  #6  
BlueCLS6's Avatar
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From: Huntington Beach, CA
YES! This is what I have been waiting for. Dammit, now I have to come up with another $1000 to spend on my car that I was NOT going to modify... Lightened Flywheel was bar none the best modification I did to the Accord, can't wait to get one for the CL now too! Too bad install will be a b!tch
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Old Jan 30, 2003 | 08:08 PM
  #7  
soopa's Avatar
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From: Albany, NY
thats an awesome modification. worthy of car talk... copying there.
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Old Jan 30, 2003 | 08:15 PM
  #8  
Zapata's Avatar
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From: burbs of philly
Originally posted by BlueCLS6
YES! This is what I have been waiting for. Dammit, now I have to come up with another $1000 to spend on my car that I was NOT going to modify... Lightened Flywheel was bar none the best modification I did to the Accord, can't wait to get one for the CL now too! Too bad install will be a b!tch

What performance gains did you see?
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Old Jan 30, 2003 | 08:20 PM
  #9  
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Originally posted by Nashua_Night_Hawk
One extra-mod for Sscalbert, Shawn S, Zapta and AllMotor 2000.. guys start saving from now...
......................
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Old Jan 30, 2003 | 08:29 PM
  #10  
Zapata's Avatar
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From: burbs of philly
Mike,
There are some excellent benefits of the DMF. How much strain will be put on the tranny by removing the DMF???? What about noise and TV?
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Old Jan 30, 2003 | 08:31 PM
  #11  
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From: So Cal
Dayam!

I think that would have put my 6spd at 13.5 NA!!!
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Old Jan 31, 2003 | 12:38 AM
  #12  
BlueCLS6's Avatar
ex 6 Speed owner :(
 
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From: Huntington Beach, CA
Originally posted by Zapata
What performance gains did you see?
Much greater acceleration in 1st, 2nd gears, quick revving, easy to rev match on downshifts, just all out better performance. I really like having a lighter flywheel. One of the few things I don't like about the CL... it has a heavy tank flywheel. Guess I am just used to my 8 lb. Aluminum one...
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Old Jan 31, 2003 | 01:13 AM
  #13  
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From: CA
Can anyone explain what the DMF is exactly and how it affects the car? I've always felt like the engine had a lot of intertia, like you clutch and drop off the gas and it doesn't spin down very quickly. Is that by design?
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Old Jan 31, 2003 | 09:48 AM
  #14  
soopa's Avatar
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From: Albany, NY
^bump^
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Old Jan 31, 2003 | 09:51 AM
  #15  
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From: So Cal
The CL-S (at least the 6spd) tends to hold its RPM's a tad bit once you have the clutch depressed and let go the gas... that has to do with the rotating mass (aka flywheel) still spinning. A lighter flywheel would make the RPMS's drop much quicker (especially a 60% lighter one).

What you will also notice is that during a dyno run, the whp will increase pretty significantly (that's less drive-train loss)!!
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Old Jan 31, 2003 | 10:05 AM
  #16  
soopa's Avatar
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From: Albany, NY
i tell you exactly how to see what this does to a car...

play gran tourismo!!!

hehe... this is like... the best mod in the game.


thats bout as intimate as my knowledge on the subject goes.
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Old Jan 31, 2003 | 10:21 AM
  #17  
Zapata's Avatar
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From: burbs of philly
Originally posted by mt6forlife
Can anyone explain what the DMF is exactly and how it affects the car? I've always felt like the engine had a lot of intertia, like you clutch and drop off the gas and it doesn't spin down very quickly. Is that by design?

Well there are some great benifits of the DMF. It helps to reduce feeling the vibrations or stress (torsion/bending action) of the engine into the tranny. You have vibrations from the engine which are transfered down the line. You do loose a little power from the engine because of the added mass.




This is what it looks like

engine-----FLYWHEEL-FLYWHEEL~~clutch-------tranny


Now there aren't TWO flywheels but The mass of the flywheel is seperated. They are connected by springs which help to do all the things i wrote about.

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Old Jan 31, 2003 | 11:44 AM
  #18  
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I hope it comes out on Time.
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Old Jan 31, 2003 | 11:47 AM
  #19  
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So if a stock 6sp has about a 15% drive train loss. What could one expect with a 60% reduction in rotating mass in the flywheel? I dont know flywheels and mathematics enough to even speculate. But i do know that if a 6sp with H/I/E runs about 250 on the dyno. And if the 60% less mass was directly related to the 15% drive train loss. The new drive train loss would be 9%. So the resulting WHP would be 272.5? 22.5 WHP for $999, $850-ish through dean? I'll take 1 please. Dont flame me, i know these numbers are off. or are they???
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Old Jan 31, 2003 | 12:02 PM
  #20  
allmotor_2000's Avatar
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From: So Cal
I don't think you'll get 22.5WHP... you'll notice quicker acceleration etc., but not 22.5whp!!
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Old Jan 31, 2003 | 12:03 PM
  #21  
I am RobG's Avatar
im back
 
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From: New York
MINE! Mike can i reserve one? then that'll defintiely drop me a couple tenths of a second
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Old Jan 31, 2003 | 12:14 PM
  #22  
Zapata's Avatar
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From: burbs of philly
Originally posted by hughesne
So if a stock 6sp has about a 15% drive train loss. What could one expect with a 60% reduction in rotating mass in the flywheel? I dont know flywheels and mathematics enough to even speculate. But i do know that if a 6sp with H/I/E runs about 250 on the dyno. And if the 60% less mass was directly related to the 15% drive train loss. The new drive train loss would be 9%. So the resulting WHP would be 272.5? 22.5 WHP for $999, $850-ish through dean? I'll take 1 please. Dont flame me, i know these numbers are off. or are they???

No you'll gain back about 5% depending on the OEM design. The great thing is that you'll see gains across the board in TRQ and HP
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Old Jan 31, 2003 | 12:57 PM
  #23  
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From: Columbus, OH
Originally posted by hughesne
So if a stock 6sp has about a 15% drive train loss. What could one expect with a 60% reduction in rotating mass in the flywheel? I dont know flywheels and mathematics enough to even speculate. But i do know that if a 6sp with H/I/E runs about 250 on the dyno. And if the 60% less mass was directly related to the 15% drive train loss. The new drive train loss would be 9%. So the resulting WHP would be 272.5? 22.5 WHP for $999, $850-ish through dean? I'll take 1 please. Dont flame me, i know these numbers are off. or are they???

My numbers were a little off, at 9% drive train, the whp would be 267.5, and at 10% loss the whp would be 264.6. 14.6 isnt bad if we see compariable TQ and both are across the entire powerband.
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Old Jan 31, 2003 | 08:44 PM
  #24  
Zapata's Avatar
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From: burbs of philly
Originally posted by hughesne
My numbers were a little off, at 9% drive train, the whp would be 267.5, and at 10% loss the whp would be 264.6. 14.6 isnt bad if we see compariable TQ and both are across the entire powerband.

Well it depends. It COULD be that much. Considering your droping about 14lbs of weight. Crap, i'm no good at physics etc., i'm sure there formula to figure it out.


EricL, Scalbert??
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Old Jan 31, 2003 | 09:25 PM
  #25  
scalbert's Avatar
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From: Woodstock, GA
Originally posted by Shawn S
......................
I second that, just one more thing to add to the list...
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Old Feb 1, 2003 | 12:08 AM
  #26  
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shooting for 1200+rwhp
 
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From: NC
damnit.....just when i was asking about the clutch, it happens, but i wasnt expecting it to be this high....oh well its better than paying $900 for another stock one....hey Scalbert, i think we're gonna need this for the charger....
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Old Feb 1, 2003 | 06:06 AM
  #27  
Zapata's Avatar
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From: burbs of philly
Originally posted by Zootking
damnit.....just when i was asking about the clutch, it happens, but i wasnt expecting it to be this high....oh well its better than paying $900 for another stock one....hey Scalbert, i think we're gonna need this for the charger....
It is expensive but they are using good product. The clutch is made by SACHS......they are top notch when it comes to clutches.


Well, initially no. But yes you will
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Old Feb 1, 2003 | 08:03 AM
  #28  
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From: NC
I know i'll take the bait....and coming from Comptech it should be a quality product...and now that i think about it, a lighweight flywheel along with a clutch isnt too bad for $999....can't wait to see what Dean can sell it to us for....maybe $800-850
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Old Feb 1, 2003 | 08:29 AM
  #29  
devnull's Avatar
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From: South of food...
NICE!!!

Ok now:

$3995 for S/C (done deal)
$1099 for headers (already done)
~$999 for fly (absofuckinglutely)

Pretty bad-ass for the extra 6g's. Count my ass in...

Comptech rulz..
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Old Feb 1, 2003 | 08:33 AM
  #30  
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Fawk you 6 speeders get all the fun....how am I gonna keep up now.
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Old Feb 1, 2003 | 08:47 AM
  #31  
Wires's Avatar
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Originally posted by hughesne
So if a stock 6sp has about a 15% drive train loss. What could one expect with a 60% reduction in rotating mass in the flywheel? I dont know flywheels and mathematics enough to even speculate. But i do know that if a 6sp with H/I/E runs about 250 on the dyno. And if the 60% less mass was directly related to the 15% drive train loss. The new drive train loss would be 9%. So the resulting WHP would be 272.5? 22.5 WHP for $999, $850-ish through dean? I'll take 1 please. Dont flame me, i know these numbers are off. or are they???
You'll gain a whopping 0 HP from the lighter flywheel. It'll allow the engine to rev faster (aka faster acceleration), but the HP gains are nil.

Once the flywheel is spinning, it takes no more HP to keep it spinning if it's light or heavy. Where you see the gains is is takes more HP to get the heavy flywheel up to speed (that's why you can accelerate quicker, since you have more usable HP to the ground).

So, to summarize:
Pick an RPM, and hold it there, and you'll gain no HP. But, during acceleration, you'll have a little more to play with.

Of course, there are a couple of drawbacks:
1) You lose the dual mass flywheel.
2) The lack of rotating mass makes the engine bog more on spuratic loads (aka driving over a dip in the road) since you don't have the extra rotating mass to keep the RPM's constant. I know the CL has decent torque, but is this an issue? I could see fuel economy decreasing in this case.

Of course the plus is faster acceleration...
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Old Feb 1, 2003 | 08:47 AM
  #32  
devnull's Avatar
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From: South of food...
Originally posted by lou
Fawk you 6 speeders get all the fun....how am I gonna keep up now.
-hehe... :pfawk:
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Old Feb 1, 2003 | 09:00 AM
  #33  
lou_RENAMED's Avatar
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Originally posted by Wires
You'll gain a whopping 0 HP from the lighter flywheel. It'll allow the engine to rev faster (aka faster acceleration), but the HP gains are nil.

Once the flywheel is spinning, it takes no more HP to keep it spinning if it's light or heavy. Where you see the gains is is takes more HP to get the heavy flywheel up to speed (that's why you can accelerate quicker, since you have more usable HP to the ground).

So, to summarize:
Pick an RPM, and hold it there, and you'll gain no HP. But, during acceleration, you'll have a little more to play with.

Of course, there are a couple of drawbacks:
1) You lose the dual mass flywheel.
2) The lack of rotating mass makes the engine bog more on spuratic loads (aka driving over a dip in the road) since you don't have the extra rotating mass to keep the RPM's constant. I know the CL has decent torque, but is this an issue? I could see fuel economy decreasing in this case.

Of course the plus is faster acceleration...
funny cause I thought you needed slightly heavier flywheel for good TQ. When I lived in Florida and worked on cars in my dads gas station we did a clutch job on a Ford Mustang it was either 67' or 69'. Well anyways I drove this heavy ass flywheel to get it cut....the flywheel din't even need it and it was brand spankin new heavy ass fawk very good quality(stock). I started to really admire the classic cars Mustands, Camaros, I drove a 72' Datsun 240 Zx and I was peeling tires in 1,2,3 incredibly fast
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Old Feb 1, 2003 | 11:45 AM
  #34  
BLK CLS's Avatar
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I put in a Aluminum Lightweight Flywheel that is 11 lbs instead of 27lbs in my S4. I also put in the RS4 clutch.

The flywheel mod is a great mod. In the S4, it revs up a lot faster, as does it rev down faster so it helps you slow down for curves.

The engine revs a lot freer, and now with this clutch, I get 4 wheel burnouts in the dry

Don't listen to the nay-sayers. this mod should be great.
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Old Feb 1, 2003 | 04:49 PM
  #35  
Wires's Avatar
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Originally posted by lou
funny cause I thought you needed slightly heavier flywheel for good TQ. When I lived in Florida and worked on cars in my dads gas station we did a clutch job on a Ford Mustang it was either 67' or 69'. Well anyways I drove this heavy ass flywheel to get it cut....the flywheel din't even need it and it was brand spankin new heavy ass fawk very good quality(stock). I started to really admire the classic cars Mustands, Camaros, I drove a 72' Datsun 240 Zx and I was peeling tires in 1,2,3 incredibly fast
The heavier the flywheel, the more it will maintain torque. It's hard to get it up and spinning, and hard to make it stop. (Makes it slower to accelerate and decelerate, but the heavier flywheel will try to maintain the torque on the drivetrain.)
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Old Feb 1, 2003 | 06:17 PM
  #36  
Zapata's Avatar
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From: burbs of philly
Yup positives and negatives. You will see a gain in trq. SLight....but you will see a gain.

Originally posted by Wires
You'll gain a whopping 0 HP from the lighter flywheel. It'll allow the engine to rev faster (aka faster acceleration), but the HP gains are nil.

Once the flywheel is spinning, it takes no more HP to keep it spinning if it's light or heavy. Where you see the gains is is takes more HP to get the heavy flywheel up to speed (that's why you can accelerate quicker, since you have more usable HP to the ground).

So, to summarize:
Pick an RPM, and hold it there, and you'll gain no HP. But, during acceleration, you'll have a little more to play with.

Of course, there are a couple of drawbacks:
1) You lose the dual mass flywheel.
2) The lack of rotating mass makes the engine bog more on spuratic loads (aka driving over a dip in the road) since you don't have the extra rotating mass to keep the RPM's constant. I know the CL has decent torque, but is this an issue? I could see fuel economy decreasing in this case.

Of course the plus is faster acceleration...
Reply
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