Exedy Mach 400 limits?

[BruceH]

I'm currently running a 07806 Exedy clutch which I believe is the same as a Mach 400. Exedy calls it a Stage 1 organic. It's been a great clutch so far. My power is going to go up in the future.

I'm wondering what the experience has been with a mach 400? If you had one slip what was the power level and what were you doing?

Thanks,
Bruce

 

[RED09GT]

I have the 07802, which is the 10 spline version of that same clutch disc. Exedy has renamed their product line, it is what used to be the mach 400/500 disc, the difference is the 500 had a pressure plate with more clamping force. With the 07806 part # you have a mach 400. They rate it to 622 ft-lbs at the flywheel with the mach 500 pressure plate.
Did you pick up the disc on its own? If so, can you point me in the direction you found it?

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[BruceH]

I have the 07802, which is the 10 spline version of that same clutch. Exedy has renamed their product line, it is what used to be the mach 400/500 disc, the difference is the 500 had a pressure plate with more clamping force. With the 07806 part # you have a mach 500. They rate it to 622 ft-lbs at the flywheel.
Did you pick up the disc on its own? If so, can you point me in the direction you found it?

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IIRC I bought it from Amazon for $251. During the current research for holding power it came up for $228. That's a clutch, pp, tool, and throwout bearing. I was able to sell the bearing for a little extra money.

The Exedy listing is different. Are you sure that what I have is the same as a 500? They have a stage 1 and 2. Stage 2 is listed as a thicker disk.

Edit: I see that yours has a higher clamp load than mine. You must have the 500 and I'm fairly certain mine is 400. I just hope it holds a pd blower. I do not like changing the clutch at all.

 

[BruceH]

Here is the Exedy webpage info:


EXEDY Stage 1 Organic Clutch Kit

Part Number: 07806

EXEDY organic racing clutches only use premium friction materials that are resistant to slippage and burst. Increased clamp loads give the necessary capacity to handle modified engines. This is the preferred clutch for street and light horsepower track use. Driveability is similar to the stock clutch. Pedal efforts will be slightly higher because of the higher clamp loads. All of our clutch discs have spring center dampers to reduce drivetrain shock.



Specs:

Disc Size280mmSpline Teeth / Major Dia26T / 29mmClamping Force/Load exerted (lbs)2765Disc MaterialOrganicNumber of DiscSingleType (Push/Pull)PushSprung Center (D-core)YesClutch Torque639Torque Capacity at Wheels408Torque Capacity at Flywheel510
Suitable For Driving Styles:

• Street
• Auto Cross Rally

This Clutch Kit Fits:

FORD078062001 - 2001 MUSTANG BULLITT Tremec Transmission; V8; 4.6L; Gas(All) 078062001 - 2001 MUSTANG COBRA Tremec Transmission; V8; 4.6L; Gas(All) 078062001 - 2004 MUSTANG GT Tremec Transmission; V8; 4.6L; Gas(All) 078062003 - 2004 MUSTANG MACH 1

 

[sportinawoody]

I have the disc with roughly 2k on it. I properly broke it in but I grenade my engine and upgraded my disc for the upcoming power increase. never had any issues. it was the 07802csc I think. will have to double check

 

[RED09GT]

American muscle has a video with the different exedy clutches, their explanation is that the 350/400 pressure plate is the same but the 400 disc is different. The 400/500 disc is the same but the pressure plate is different, and the 500/600 use the same pressure plate but the 600 uses a different disc.
Edit: I did edit my first post as I had the 07806 and the 07803 mixed up. My memory is usually pretty sharp but after looking at the catalog, I had the two mixed up.
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[Timmbo]

Id say they must under rate their clutches. My Mach 500 is holding 655 ft lbs of torque. Dyno and graph showed no signs of slippage. Of course the clutch only has about 1500 miles on it.

 

[CraigNnem]

A dyno and leaving at 4500 + on slicks is 2 different things.

My stock clutch held great for 9 years leaving at 3k on stock wheels with drag radials.

 

[AlbertD]

I had the 400 in my 06, I installed it at 50k miles and sold the car at 125k miles. At that point it still showed no signs of slip or any issues of any kind.

NA the car made 370rwhp/330tq and endured many (20-30 a month) 6k+ launches at the track on slicks... low 1.5 60s.
I boosted the car the last 30k miles, no track time, and the clutch held up fine. Around 430rwhp/380tq at that point.

It really is a great clutch for a sub 500hp/tq car that sees daily driver duty.

 

[rojizostang]

i have the exedy 400. my car doesn't make that much horsepower, but it's yet to slip with launches as high as 5.5k. the tires have held as much as 5.3k, but at 5.5k they breake loose but the clutch has never slipped.

my et street bias ply 26x11x17's

it's actually kind of stiff in stop and go driving. it'll make your leg a little tired. at least it does mine.

 

[hotrod_renegade]

I've got about 5,000 miles on the Mach 400 and Exedy lightened steel flywheel - I haven't had the car on a dyno but I'm guessing ~450whp range and have had zero issues with it with the mods in my sig. It grabs hard, no slip with 3500-4500rpm clutch dumps on drag radials. I wouldn't hesitate to run another one at this power level, definitely happy with it so far.

 

[702GT]

Mach 400 & Spec Aluminum flywheel here, 4500 miles, no high R launches on it but lots of abusive mid-high R shifting and some rear end "sway" never slipped. About to put a D1SC against it, and it's the least of my worries lol.

 

[BeachMonkey100]

Bruce are you running this with the 6 bolt or 8 bolt? I can't remember lol. I am looking into clutch options now since I will be running 8 bolt flywheel with the 3650 in my 3v. Will it fit?

 

[BruceH]

Bruce are you running this with the 6 bolt or 8 bolt? I can't remember lol. I am looking into clutch options now since I will be running 8 bolt flywheel with the 3650 in my 3v. Will it fit?

8 bolt. My current motor is the first one I've had with a Forged crank. The clutch version I'm running came with a 26 spline clutch hub. It's technically for an older Cobra with a T-56. I chose it over the one for a s197 because it didn't come with a slave and was much cheaper that way. The money I saved allowed me to purchase a new Motorcraft slave.

 

[Kalatrax]

Little off topic but after reading this I looked at the exedy site. The clutch kits for the 99-04s have the exact same part numbers as ours minus "csc" as well as a $100 price difference. Is the only difference the fact that our kit comes with the slave? Or are the pressure plates different at all?

 

[BruceH]

Little off topic but after reading this I looked at the exedy site. The clutch kits for the 99-04s have the exact same part numbers as ours minus "csc" as well as a $100 price difference. Is the only difference the fact that our kit comes with the slave? Or are the pressure plates different at all?

AFAIK the difference is a slave and throw out bearing. IIRC I was able to resell the to bearing on ebay for about $30. I was advised that the generic slave had a tendency of failing so I opted for the Motorcraft version. However, plenty of people have had success with other brands too.

Removing the transmission isn't one of my favorite things to do so I opted to spend a little more for the Ford part.

 

[rojizostang]

the original slave failed in my car, i assume it was motorcraft? the one that came with the exedy has been working fine for a couple years, but i don't put a lot of mileage on the car.

 

[Dillon Dollar]

I made 725 rwhp and 680 tq on my mach 400

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[sportinawoody]

did you launch it on sticky tires above 4k ? just curious

 

[Dillon Dollar]

Yeah 325 50 15s. I have no idea why it lasted but it shouldn't have lol

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