clutch thoughts
Turbo Mini Forums

yep lugs will be M8 thread.

I can't give a weight until they are made. Unless someone clever can work it out?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

yep, the cad i use will give you the weight for various materials.

I think 1kg is achievable, the one i posted above is a shade over a kilo, but its the larger AP type.

so he did I thought that was in a pm.

I was more thinking of a safety point of view so we don't have to have any cast parts of the flywheel.

Weight saving is a bonus!

id stick it on a new thread andy , prob get more attention, i think the length of this one puts people off it a bit .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

ok thanks Robert

I will do so.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Fantastic results for such little boost Robert, makes me realise how inefficient my setup is at present....

On 3rd Jan, 2009 Paul S said:
Nothing like a bit of plagiarism



About 2/3 hours work and £10 for the bolts !!!!

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

yes steve, just tapped the body, the std rivets were fairly soft, similar to normal bolts at a guess, i think whacking some car heads in yours should do the trick.

realised again ,that i hadnt updated this ,heres my dyno run ,pk boost 21 psi at pk power ,rest of run down to 17 psi . there are 2 runs on here , one is 19 psi and i got the choke out fast enough ,the other is one where i got the choke out too late ,so it reads lower on the 1st half of the graph .this one also had the side pipe on ,which was worth about 12 to 20 bhp .

NO SLIP, this was with an ap rally plate , which also meant it gripped on the track .

NOTE..
this graph has been adjusted for chris's latest calibration figures for his rollling rd , so its dropped from 261 bhp to 249bhp .

regards
robert .

Edited by robert on 21st Feb, 2011.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

remind us again Robert of which springs you are using, saving us hours trapesing through 12 pages

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Looking at it...

it seems the big round head is 18mm diameter. The smooth body where it passes through must be 9mm. That is the gap it has to pass through.

Unsure of actual height yet, as havent removed a rivet yet.

So I think M8x1.0mm with a peened style locking nut on the bottom ?

That should allow it do bolt down tight to a dead end at the 9mm, even if it is only a small step to the M8 thread ?

Ive a contact who can make me some custom bolts to exact dimensions.
Although those shoulder screws look more than ideal if they came in the correct dimensions. I think I'd prefer not to have to use a lot of washers ? Although guess it shouldnt cause any problems ?

What other ways did you have in mind ? I'm open to all suggestions that dont cost a fortune !
Where did you source the bolts from ? That unbrake website direct ?

Both Helix and Superclutch basically said they could do nothing. That I found unbelievable.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Steve, have you tried SPEC clutch in the USA? Very helpful with a clutch for my Peugeot.

Edited by stevieturbo on 21st Feb, 2011.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Edited by robert on 22nd Feb, 2011.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Ok Robert, so I read all 12 pages, and it might appear that you don't really know what springs you are using, you just bloody built it with what you had to hand lol.

Im not so sure all this 'turbo' and 'mg' or '1275' and '998' or the thickness comparisons are relevant between the different clutches, since the AP springs are a larger diameter with a larger lever ratio.

I've built it, I just need to use it and see how it copes

pm me your email adress Colin.

hahahah hold on ill find it you noodle ..

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

On 22nd Feb, 2011 Sprocket said:
Ok Robert, so I read all 12 pages, and it might appear that you don't really know what springs you are using, you just bloody built it with what you had to hand lol.

Im not so sure all this 'turbo' and 'mg' or '1275' and '998' or the thickness comparisons are relevant between the different clutches, since the AP springs are a larger diameter with a larger lever ratio.

I've built it, I just need to use it and see how it copes

Edited by robert on 22nd Feb, 2011.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

:$

still, since it looks like I am the only numbnuts to be using the AP clutch, figures a little useless to me for an idea of what I have built, and at this time, i don't have the gear to measure pressures.

I had thought about making a fixture and an adapter to mount the selected clutch combination, then with my big 600lbft torque wrench measure the actual slip torque of a fully assembled clutch.

Next generation RTS, now easier to build!

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Edited by Sprocket on 11th Sep, 2012.

Nice writeup for the AP.
Is anyone using threadlock?

That looks good!

If something is worth doing, it's worth doing half of.