clutch recomendations for high torque application
Thread Starter
Melting Slicks
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
clutch recomendations for high torque application
Well we all know how one thing snowballs into another. Well got the 468 tuned on the dyno, made the numbers I expected with the combination. decided to next tackle the transmissions tendency to slip out of 4th gear while on deceleration. So had the trans rebuilt (another story for another time). So after getting all this done I had my first real chance to see what it would do. Ran it up through the gears and it was pulling very hard after it got traction, went to 4th gear and it stopped pulling but continued to rev. Got out of it and pushed in the clutch and then reingaged and it reingaged ok. Got that wonderful burnt clutch smell though. It's done this on two occasions now so I'm thinking I've exceeded the holding power of this clutch. Just what I needed considering I've had this trans out twice this month alrady
. So looking for clutch recommendations. Also anything weired about removing a lakewood scattershield (besides a ton of bolts), it was on the car when bought. I've got a CF dual friction on the 73, but is this enough clutch for my 69?
Thanks
Pat Kunz
. So looking for clutch recommendations. Also anything weired about removing a lakewood scattershield (besides a ton of bolts), it was on the car when bought. I've got a CF dual friction on the 73, but is this enough clutch for my 69?Thanks
Pat Kunz
Advanced
Joined: Sep 2006
Posts: 94
Likes: 0
From: Modesto CA.
i think the CF should be fine. i run one on my B/B with 500 + ft lb.. but mine slips out of 4th and first with a new rebuilt M-21... so i looked on the web for some help and came up with this by Jerry MacNeish.
htt://www.camaros.org/bellhousings.shtml
also went to CF web for some great tips... i'll be pulling my engine and trans this week end for a closer look
htt://www.camaros.org/bellhousings.shtml
also went to CF web for some great tips... i'll be pulling my engine and trans this week end for a closer look
Racer
Joined: Apr 2007
Posts: 364
Likes: 1
From: Dane Wisconsin
when talking single disc stuff these are about the top of the pile
http://specclutch.com/
look at the 3+ good for 800ft/lbs. i installed two of these and the feel hold and drivibility is great.
or do the spec my car thing that will give you what they cost and what they hold.
http://specclutch.com/
look at the 3+ good for 800ft/lbs. i installed two of these and the feel hold and drivibility is great.
or do the spec my car thing that will give you what they cost and what they hold.
Last edited by brngrhd; Nov 27, 2008 at 10:56 PM.
Race Director
Joined: Jan 2000
Posts: 13,018
Likes: 2,262
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
The basic dual friction CF holds excellent for the price. It held my 540 when it was making around 730HP. Couldn't hold 800+. It handled lots of drag strip runs with no issues even on slicks.
Hard to beat them for the money.
JIM
Hard to beat them for the money.
JIM
Advanced
Joined: Sep 2006
Posts: 94
Likes: 0
From: Modesto CA.
i think the CF should be fine. i run one on my B/B with 500 + ft lb.. but mine slips out of 4th and first with a new rebuilt M-21... so i looked on the web for some help and came up with this by Jerry MacNeish.
www.camaros.org/bellhousings.shtml
also went to CF web for some great tips... i'll be pulling my engine and trans this week end for a closer look
www.camaros.org/bellhousings.shtml
also went to CF web for some great tips... i'll be pulling my engine and trans this week end for a closer look
Le Mans Master
Joined: Dec 2006
Posts: 5,557
Likes: 9
From: Oquirrh Mountains
St. Jude Donor '09
This one will get it done:
http://store.summitracing.com/partde...5&autoview=sku
12" Centerforce DF. These were designed for the 572" 720hp crate engine. It'll take anything your 468 can throw at it.
http://store.summitracing.com/partde...5&autoview=sku
12" Centerforce DF. These were designed for the 572" 720hp crate engine. It'll take anything your 468 can throw at it.
Last edited by Ben Lurkin; Nov 27, 2008 at 11:50 PM.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I have the CF dfx 11 inch from jegs they are about $350 It takes on my super sticky 12X27 slicks
The DFX line is the latest series of performance clutches from Centerforce. Centerforce is proud to announce DFX as their competition-proven clutch package for select import and domestic applications. This new DFX series is engineered for competition standards of quality and craftsmanship. The DFX series is aimed at high-end applications that continually demand increased integrity and holding-capacity. DFX scores big, not only with holding-capacity and strength, but also provides some of the best drivability from a race-inspired clutch. DFX retains an easy pedal effort, thanks to Centerforce’s patented ball bearing actuated diaphragm, for smooth engagements without detriment to the vehicle’s release components. The Centerforce DFX performance clutch system utilizes Nodular Iron pressure plate rings and reinforcements designed to help prevent drive strap breakage and safety. The DFX series allows the end user to tailor the performance and style of driving with different choices of clutches and clutch discs: From street/strip to full-on drag racing capability.
The DFX line is the latest series of performance clutches from Centerforce. Centerforce is proud to announce DFX as their competition-proven clutch package for select import and domestic applications. This new DFX series is engineered for competition standards of quality and craftsmanship. The DFX series is aimed at high-end applications that continually demand increased integrity and holding-capacity. DFX scores big, not only with holding-capacity and strength, but also provides some of the best drivability from a race-inspired clutch. DFX retains an easy pedal effort, thanks to Centerforce’s patented ball bearing actuated diaphragm, for smooth engagements without detriment to the vehicle’s release components. The Centerforce DFX performance clutch system utilizes Nodular Iron pressure plate rings and reinforcements designed to help prevent drive strap breakage and safety. The DFX series allows the end user to tailor the performance and style of driving with different choices of clutches and clutch discs: From street/strip to full-on drag racing capability.
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Drifting
Joined: Oct 2005
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From: East London/SW Essex UK
Thread Starter
Melting Slicks
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
So would the DFX be overkill, with my engine? Figuring 438 ft/lbs at the rear wheels should be around 500 ft/lbs at the engine. Debating the DFX vs dual friction right now. I looked at the spec clutches, but seem a bit pricey for what I need. What about Mcleod (sp?) or Hayes?
Pat Kunz
Pat Kunz
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
So would the DFX be overkill, with my engine? Figuring 438 ft/lbs at the rear wheels should be around 500 ft/lbs at the engine. Debating the DFX vs dual friction right now. I looked at the spec clutches, but seem a bit pricey for what I need. What about Mcleod (sp?) or Hayes?
Pat Kunz
Pat Kunz
CTF-01148552 Centerforce DFX Clutch Kits
Clutch Kit, DFX, Ceramic, 1 1/ 8 in. Diameter Shaft, 26-Spline, 11.00 in. Disc, GM, V8, Kit
$325.95
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Racer
Joined: Apr 2007
Posts: 364
Likes: 1
From: Dane Wisconsin
This one will get it done:
http://store.summitracing.com/partde...5&autoview=sku
12" Centerforce DF. These were designed for the 572" 720hp crate engine. It'll take anything your 468 can throw at it.
http://store.summitracing.com/partde...5&autoview=sku
12" Centerforce DF. These were designed for the 572" 720hp crate engine. It'll take anything your 468 can throw at it.
12 inch wow that thing is huge. do you have to ge a different flywheel?
Le Mans Master
Joined: Dec 2006
Posts: 5,557
Likes: 9
From: Oquirrh Mountains
St. Jude Donor '09
Safety Car
Joined: Nov 2008
Posts: 3,720
Likes: 556
From: Seattle Washington
Clutch
I have a Mcleod Street Twin for sale but the reason its for sale is because I didn't like it. To high of Peddal Presure for My Hyd System and the Clutch was graby. It is Rated at 1200 HP. I have both Aluminum and Steel Flywheels 153 Tooth for it. I replaced it with a Spec Stage 3 Super Twin and I just drove it around the Block for the first time today and it acts like a Stock Clutch but with all kinds of Holding Power. Its a Real work of art all CNC Machined Aluminum Billet. When You Order one from them they don't have any Parts in stock they make them to order as they are ordered. They said they could make it in 3 days but it only took them 2. When it shows up its allready been balanced so no need to send it out. It only takes .300 to Disengage it so You won't have much Pedal travel.
