Clutch ideas please!

db · Post by db » Thu Jul 04, 13 10:54 pm

Clutch let go under a bit of moderate abuse today

I don't think it's gonna last long on the strip.

I'm sure it's down to all the trans fluid that got dumped on it when the front seal was leaking.

So I reckon minimum I'll need to replace the friction plate.
Ideally I'd like to upgrade but I don't think finances will allow.

Anyone got a decent 18-spline clutch going cheap?

latil · Post by **latil** » Thu Jul 04, 13 11:27 pm

727 will cure your ills

Forget manual,just not up to it.

Adrian Worman · Post by **Adrian Worman** » Thu Jul 04, 13 11:39 pm

just get a new centreplate and scutchbrite the pressure plate mate, it'll be fine

Real Steel have plates in stock

Dave-R · Post by **Dave-R** » Fri Jul 05, 13 8:44 am

This is what you need.

http://www.mcleodracing.com/products/RXT+Twin+Disc.mcl

db · Post by db » Fri Jul 05, 13 8:46 am

latil wrote:727 will cure your ills Forget manual,just not up to it.

Cheers Ade, hopefully that'll do the trick!

db · Post by db » Fri Jul 05, 13 8:53 am

6923-05 MOPAR 1955-1985 V8 ; Small Diameter Flywheel. 1-3/16 x 18 Input $1125.00

Nice, maybe one day...

Dave999 · Post by **Dave999** » Fri Jul 05, 13 11:33 am

Option 1

steep the friction plate in persil automatic at 37 * centigrade

organic enzymes like to eat organic oils

works with brake shoes might work with clutch plate.

another option

http://www.npcperformance.com.au/

these guys made me a light weight flyhweel and a clutch

clutch cover based on re built re sprung exedy ford v8 item

and set to balance clamping force peddle effort againts the friction material used

cost about £450 and £100 to send via australia post

if you tell them what you want they will build it.

MIGHT be less than a special US one and custom made for YOUR application

then again it might cost a fortune i got mine 4 years ago

ratebuster 1 pence per minute phone call and have a chat

then again if they do it wrong....

dave

Dave-R · Post by **Dave-R** » Fri Jul 05, 13 12:12 pm

db wrote:6923-05 MOPAR 1955-1985 V8 ; Small Diameter Flywheel. 1-3/16 x 18 Input $1125.00

Nice, maybe one day...

Well when you insist of trying to use manual gear boxes for drag racing you have to realise that, no matter how strong you make the drivetrain, the clutch is always going to be a weak point.

Think about it.
You are using only surface friction to transfer hundreds of horsepower to the rear wheels.

Which do you think has the chance of breaking loose first;

1) The massive sticky rear tyres with the weight of the car pressing them down onto a sticky prepped dragstrip?

2) Or the clutch plate pressed against a smooth steel flywheel by a few little springs?

Not exactly a fair fight is it?

db · Post by db » Fri Jul 05, 13 12:55 pm

Dave wrote:
db wrote:6923-05 MOPAR 1955-1985 V8 ; Small Diameter Flywheel. 1-3/16 x 18 Input $1125.00

Nice, maybe one day...
Well when you insist of trying to use manual gear boxes for drag racing you have to realise that, no matter how strong you make the drivetrain, the clutch is always going to be a weak point.

Think about it.
You are using only surface friction to transfer hundreds of horsepower to the rear wheels.

Which do you think has the chance of breaking loose first;

1) The massive sticky rear tyres with the weight of the car pressing them down onto a sticky prepped dragstrip?

2) Or the clutch plate pressed against a smooth steel flywheel by a few little springs?

Not exactly a fair fight is it?

db · Post by db » Fri Jul 05, 13 12:56 pm

Adrian Worman wrote:just get a new centreplate and scutchbrite the pressure plate mate, it'll be fine Real Steel have plates in stock

Not for 18-spline though, of course

AllKiller · Post by **AllKiller** » Fri Jul 05, 13 1:08 pm

Dave wrote:[Which do you think has the chance of breaking loose first;

1) The massive sticky rear tyres with the weight of the car pressing them down onto a sticky prepped dragstrip?

2) Or the clutch plate pressed against a smooth steel flywheel by a few little springs?

Not exactly a fair fight is it?

Great explanation...love it

db · Post by db » Fri Jul 05, 13 1:27 pm

Got Chris at WASP on the case.
Watch this space...

Dave-R · Post by **Dave-R** » Fri Jul 05, 13 1:30 pm

If I catch you with that car laid up and out of action at the Nats I am going to be very cross with you!

But not suprised...

db · Post by db » Fri Jul 05, 13 1:36 pm

Dave wrote:If I catch you with that car laid up and out of action at the Nats I am going to be very cross with you!

But not suprised...

I've persuaded quite a few mates to come along to watch... there may be a long queue

I'm thinking of the scene from Airplane...

70_charger · Post by **70_charger** » Fri Jul 05, 13 8:03 pm

I cured my cltuch problems by fitting tci 727 race box, more consistency and lower et as no gear change lag