Exedy Twin HD to Triple Upgrade?

[grntsiturbo]

So currently i have a twin HD in my car. It has never slipped on me but never launched the car at its current power. Im sure it will not hold anymore then whats already taking on pure pump.

Has anyone upgraded their twin to a triple? I have access to a machine shop as I have family that works at Mack/Volvo Trucks in the CNC and machinery repair feilds so having the PP and flywheel resurfaced. So Im assuming all I would hav to do is get the 3 disks and the two intermediate plates?

Im hoping so since I bet its a lot cheaper then buying a new clutch outright.

Thanks in advance

[Rogue]

The twin HD will hold 360 wheel torque all day long.. esp a dynojet reading.

[yellowevo42]

You will not need an Exedy Tripple at your power level. Stick to what you have!

[RichJ]

^Are you guys reading his sig correctly?

[tscompusa]

it only says 408wtq, twin hd will hold up to around 550

[JustinA]

Instead of giving him crap about being proactive, does anyone have an answer to his questions? He could be looking in to it now so he can save for it. What a clutch will hold, it will hold for only so long.

[yellowevo42]

Nobody is giving him crap first off, second of all the original poster should tell us his mods so the guys trying to give him an educated answer can answer that question 100% correctly..

[crcain]

I've upgraded my twin first to a triple and AMS push conversion. So when I did that, I replace the two intermediate plates, and 3 discs, and also the AMS special cover/pp.

Then I had some issues with the AMS push, and removed it, and went back to a normal pull style, which meant I changed only the cover of the clutch to the old twin one.

Switching to the triple actually made the car a bit easier to drive I think. More plates equals more friction surface = smoother engagement. I'm happy I did the conversion and saved a few dollars. If your wondering how come the twin and triple fit in the same basket, it's cuz the triples discs and intermediate plates are thinner so it fits in same space as the twin.

For the past 6 months my clutch squeaks a bit when slipping at slow speeds. Not sure why but it still holds and works great. Exedy makes great clutches.

I should add it's been over a year now since I upgraded. I did not resurface my flywheel and cover.

[Rogue]

^Are you guys reading his sig correctly?

Ha. No I wasnt! 408 on a mustang is getting close to the clutch's limit.

The limits get difficult when it comes to flywheel torque and wheel torque. According to Exedy's 2009 catalog - the FLYWHEEL torque of the exedy twin hd is 535. Assuming 20% loss to the wheels is only 430. Which is odd - because the Exedy stage 2 is advertised in WHEEL torque of 385, or 460 if you have the HD version. And it costs 1/3 the price. So is it really an upgrade?


I have a call in to Exedy to find this out for my self - As I want to know just how hard i will be working the clutch when David comes back and says dyno says HP/TQ for my car.

[waynea]

Then I had some issues with the AMS push, and removed it, and went back to a normal pull style, which meant I changed only the cover of the clutch to the old twin one.

What issues did you have with AMS push asI was considering that upgrade for my triple. Thanks.

[grntsiturbo]

Nobody is giving him crap first off, second of all the original poster should tell us his mods so the guys trying to give him an educated answer can answer that question 100% correctly..

531 whp 408 wtq on a proberly low reading Mustang Dyno. That was on pure pump gas. short list of mods is

BR Longblock(JEs,Crower rods,STG3 head)
BR ported IM TB
BR DPer 1K PTE injectors
Greddy Full Ti exhaust
BR Tubular turbo kit,HTA35R 82m
ETC
ETC
ETC

I would like to add without sounding like a dick that I didnt ask if I should upgrade But what would I need to do it. So mods are irrelevant. So far crcain (thankyou) has been the only person to help, Except Rich who tried to tell people to read the whole post etc(thanks Rich).

Has anybody else done the conversion? I might call BR and see what they say about it since Im sure thats where I buy the parts from anyway. I just wanted to ask if anybody else done it and their expeirences with it

[steelcityevo]

I did a triple upgrade when I did my build as well . It is true you will need the 2 intermediate plates and the 3 disks to create a triple,

I only have minimal miles on mine but it has seen the majority of those miles running her on highway against some stiff competition and has held up just fine , but again limited mileage.

IMO it's a good upgrade

[grntsiturbo]

Thanks for added info!

[RichJ]

What's the approximate cost of those plates and discs? I assume it can't be that cheap since the difference between the initial cost of a double and triple is substantial? Thx.

[tscompusa]

im interested in knowing this as well. I dont think my twin HD is going to withstand the tq im gonna be producing very long.

[brian 5150]

this is how this forum is he asked a question he got an answer the hd he has will be fine. hd twin will hold up to 550 wtq hes way under that he will be just fine

[brian 5150]

Instead of giving him crap about being proactive, does anyone have an answer to his questions? He could be looking in to it now so he can save for it. What a clutch will hold, it will hold for only so long.

this is how this forum is he asked a question he got an answer the hd he has will be fine. hd twin will hold up to 550 wtq hes way under that he will be just fine

[Rogue]

this is how this forum is he asked a question he got an answer the hd he has will be fine. hd twin will hold up to 550 wtq hes way under that he will be just fine

Actually - If you read my post - the exedy twin is advertised in flywheel torque.. and its 535.. or only around 450 at the wheels. Which seems low for such an expensive clutch.

[grntsiturbo]

this is how this forum is he asked a question he got an answer the hd he has will be fine. hd twin will hold up to 550 wtq hes way under that he will be just fine

EVERY vender on here says that clutch IS NOT ENOUGH and has been proved not to hold the power that Im making on a properly low reading mustang dyno when launched regularly. My car has the power to trap 132+ mph on pure pump gas. Mid to upper 130s on race fuel. The car needs a triple.

I think Im gonna go to a local DJ to hit 580 whp and 460 wtq on pump and 650 on race then take pictures of my fried twin LOL. Then maybe people will beleive Im leaning on the clutch already. LOL

Also alomost everybody on here answered a question a DIDNT ask. I didnt ask if I NEED a triple or not but WHAT IS NEEDED TO MAKE A TRIPLE OUT OF A DOUBLE! Now it has been answered.

[crcain]

What issues did you have with AMS push asI was considering that upgrade for my triple. Thanks.

The clutch cover / pressure plate was scraping part of the inside of the bell housing. Not sure why... personally I think AMS did not grind down the clutch cover bolts properly. I used the two spacer plates between tranny and engine. I run a USDM evo viii gearbox... I dunno. AMS said it was cuz my car is an Evo 6... but that didn't make sense cuz I run VIII gearbox and 4G64 block. I was pretty upset as well that AMS wouldn't accept it as a return after I told them it dug a groove in the inside of my bell housing.

But you know I had a bad experience but your mileage may vary!