500+ Horsepower Street Car Clutch Suggestions - Ford Muscle Forums : Ford Muscle Cars Tech Forum
FordMuscleForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 03-14-2003, 12:49 PM   #1 (permalink)
Registered User
 
Join Date: Feb 2003
Posts: 49
500+ Horsepower Street Car Clutch Suggestions

Sorry about the dupe posting, in case others that do not read late-model tech have suggestions.

For those of you running 500+ HP, what clutch do you run? I first ran a custom Kevlar clutch. It worked fine for about 8000 miles, then started to slip. My next try was a Center Force Dual Friction, but that could not stand up to the power and totally disintegrated after a third-gear roll-on one day. I am running a Ram 900 now, which seems to be plenty strong enough, but chatters like f_cking hell! It is really embarassing at gear head hangouts, especially with my aluminum driveshaft, sounds like a POS with the chatter and vibration.

Any suggestions?

btw, my car makes around 440-450 rwhp (422 rwtq), so estimating 15% driveline loss it makes in the neighborhood of 525.
__________________

Keith Craft 306, S-Trim, Edelbrock Heads, E-303, GT-40, T-56 6-speed, Baer Brakes, Griggs Suspension
jcm3 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-14-2003, 01:25 PM   #2 (permalink)
Registered User
 
Join Date: Feb 2001
Posts: 1,073
500+ Horsepower Street Car Clutch Suggestions

I use a heavy duty McCloud ?sp? on my 425-450hp AMC been working great for 5+years even after purposly slipping clutch many times at drag strip. Very stiff pedal though.
SCOTT is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 01:30 PM   #3 (permalink)
Registered User
 
Join Date: Feb 2003
Posts: 49
500+ Horsepower Street Car Clutch Suggestions

I've heard good things about McCloud, I'll have to look into that when this one needs to be replaced. I guess you can't realistically expect to have a light clutch pedal when it has to be strong...
__________________

Keith Craft 306, S-Trim, Edelbrock Heads, E-303, GT-40, T-56 6-speed, Baer Brakes, Griggs Suspension
jcm3 is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 01:43 PM   #4 (permalink)
Registered User
 
Join Date: Jan 2002
Posts: 74
500+ Horsepower Street Car Clutch Suggestions

I would think the Ram 300 series disk would be what you want. The 900 series is not good for street driving (as you are experiencing). The 300 is what has been recommended to me by different sources for my 650 hp engine. It is supposed to hold up to the high horsepower but without the chatter.
Mike_R. is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 01:55 PM   #5 (permalink)
Registered User
 
Join Date: Feb 2003
Posts: 49
500+ Horsepower Street Car Clutch Suggestions

Cool, I just called RAM and it sounds like maybe the 300 would be better for a street car. I take my car to the drags occasionally (a few times a year) and run ET Streets. Does your 300 hold up pretty well? Sounds like the way to go!
__________________

Keith Craft 306, S-Trim, Edelbrock Heads, E-303, GT-40, T-56 6-speed, Baer Brakes, Griggs Suspension
jcm3 is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 02:22 PM   #6 (permalink)
Registered User
 
Join Date: Jan 2002
Posts: 74
500+ Horsepower Street Car Clutch Suggestions

I also run MT ET streets. You gotta have a good clutch with those tires. I haven't yet got my 300 series yet. I will be installing it this summer. I am currently running a very stiff Ram long style pressure plate that I got a LONG time ago with a Hays street and strip disc. It doesn't chatter at all and it never slips. I've used this set-up for a long time, but I have had to replace the disc a couple times over the years. I've just used the pressure plate over and over. I've honestly ran the pressure plate for about 15 years. I'm going to try the Ram 300 series disc next though as it's been highly recommended by a few people for high horsepower steet engines. The long style pressure plate really works well if you need good holding force.
Mike_R. is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 02:29 PM   #7 (permalink)
Registered User
 
Join Date: Feb 2001
Posts: 1,073
500+ Horsepower Street Car Clutch Suggestions

Might be overkill for street.....

http://cgi.ebay.com/ebaymotors/ws/eB...category=33730
SCOTT is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 05:04 PM   #8 (permalink)
Registered User
 
Join Date: Feb 2003
Posts: 49
500+ Horsepower Street Car Clutch Suggestions

Thanks for the information, guys. Think I'll stick with the 900 for now, and when it wears out I might try the 300. I guess a little bit of chatter is better than a slipping clutch!
__________________

Keith Craft 306, S-Trim, Edelbrock Heads, E-303, GT-40, T-56 6-speed, Baer Brakes, Griggs Suspension
jcm3 is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 06:20 PM   #9 (permalink)
Registered User
 
Join Date: Mar 2001
Posts: 1,307
500+ Horsepower Street Car Clutch Suggestions

I've got a Ram 300 in my stang and so far so good. It's been pretty decent on the street and hasn't had any chatter.

However, I'm only making 400hp and this clutch hasn't been run on slicks yet. I'm also using a long style clutch for more clamping force.

Don't feel bad for posting out of the tech page. The regular tech gets alot more action.
Jimmys66 is offline   Reply With Quote Quick reply to this message
Old 03-14-2003, 08:44 PM   #10 (permalink)
Registered User
 
Join Date: Jan 2001
Posts: 2,129
500+ Horsepower Street Car Clutch Suggestions

Have you tried the FMS clutches? I dont run near that much power but the 3 I have used and flagerantly abused have held up extremely well.
__________________
This horse runs.
Nastystang is offline   Reply With Quote Quick reply to this message
Old 03-15-2003, 03:38 AM   #11 (permalink)
Registered User
 
Join Date: Jul 2002
Posts: 398
500+ Horsepower Street Car Clutch Suggestions

The 300 works great but the only down side is the heavy pressure plate springs. The best clutch I ran was a factory boss 351 clutch and plate which is basicly the same as the 300 series just less than half the price. My last clutch was the iron ram setup that uses a 350-400 pound pressure plate for limited slip, not good for street driving. With 500+ hp and sticky tires you would be better off with an C4.
__________________
1965 mustang fastback
1999 mustang GT
1966 mustang coupe
fastback.brian is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Muscle Forums : Ford Muscle Cars Tech Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 12:59 PM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.