Jump to content
SAU Community

Recommended Posts

Maybe URAS will state his commercial interest, if any, in this subject. I'm always interested in informed and unbiased opinion or criticism as I guess are most others.

Its not clear to me exactly what Jantolis' problem is anyway. From my discussions with JB any road car clutch should have a sprung center even though this can be a weak point from a straight out performance aspect.

  • Replies 62
  • Created
  • Last Reply

Top Posters In This Topic

A friend of mine works exclusively with clutches

He says the full monty is with out a doubt effective...just that the sum of the part numbers should equall about half of what Jim charges...but if he charges it and people are hapy to pay who cares!

Its not clear to me exactly what Jantolis' problem is anyway. From my discussions with JB any road car clutch should have a sprung center even though this can be a weak point from a straight out performance aspect.

My problem is i don't like the feel of my new clutch and was after an opinion of weather to try a lightened flywheel or replace the JB clutch with The twin plate i originally had. It is still working and has meat on the plates. I don't have the money to waste to just chuck around on getting the lightened flywheel and installing it. I only got the clucth because i was in need of one desperatley(long story) and didn't have to many other options.

It seems most people would keep the JB clutch and possibly try out the lightened flywheel.

A friend of mine works exclusively with clutches

He says the full monty is with out a doubt effective...just that the sum of the part numbers should equall about half of what Jim charges...but if he charges it and people are hapy to pay who cares!

It does seem a bit pricey but there is a lot of attention to detail eg the metallic facing are from one particular maker and each one is checked for trueness. Apparently they are sometimes not quite straight. Then he uses those excellent Wurth locking washers, and so on..........

im currently running about 190wk, but im putting in a new computer in the same time as well, so should be around the 200 mark..

then ill be driving that power for a while i recoken

An ORC single plate will be good for you. If not maybe you can try for the basic jim berry clutch then. Not the full monty :D

What about the feel of it don't you like?

This is what im thinking also. Most of the 'feel' is the lack of response which is attributed to the flywheel, not the clutch.

If its jerking when disengaging, possibly you need to adjust the pick-up point?

Im sure a quick buzz to Jim and...

- telling him the clutch you have

- informing the problems/feel that you do not like

... Will result in a pretty good plan of action :D

Possibly something is worn? Not set right?

I've driven so many cars, with many varying clutches.

And i cant say only two ive ever 'disliked', both were twin plates with far too harsh clamping pressure/poor pickup points. :P

Maybe URAS will state his commercial interest, if any, in this subject. I'm always interested in informed and unbiased opinion or criticism as I guess are most others.

Its not clear to me exactly what Jantolis' problem is anyway. From my discussions with JB any road car clutch should have a sprung center even though this can be a weak point from a straight out performance aspect.

i supply all the below so i honestley can say im being objective;

daikin

exedy

nismo

osgiken

extreme

centreforce

tilton

sachs

orc

mcleod

hays

clutchpro

is that being objective enough..... and JB uses some the above components in his.... so its not like im paying out something i cant get... in fact some of my stores by his gear.

i have just swapped an ORC twin for a Nismo Super Coppermix twin.

The Nismo has a std slave cylinder, and is as light as the standard clutch.

It doesn't rattle when engaged or disengaged, and barely shudders on pick up.

Progressive, feels great, and virtually un-stallable.

The perfect street ~600ps clutch - can be used every day, all day.

SWEET and much easier than the ORC!

i have driven on a few JB clutches up here in brisbane. and i can say they are bloody awesome. single plate holding 1000hp.. hmm sounds good..

my fav was a RS liberty with a JB clutch was amazing made the GTR seem like puss both with all 3 pedals.. lol

i supply all the below so i honestley can say im being objective;

daikin

exedy

nismo

osgiken

extreme

centreforce

tilton

sachs

orc

mcleod

hays

clutchpro

is that being objective enough..... and JB uses some the above components in his.... so its not like im paying out something i cant get... in fact some of my stores by his gear.

It's a different world, mate and you know it. Can I walk into any Autobarn and buy a custom made clutch to my specifications from any of the major manufacturers you mentioned? If so, then you already understand the benefit of a clutch built to suit the application and I don't understand the blanket recommendation that other brands are superior to his clutches.

Blanket statements are what destroys otherwise sensible advice on internet forums.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Sounds more like what Brad said, that it's mainly transfer. What pad bed in procedure did you use, and did you replace/machine the rotors, or just swap pads?
    • The stutter is almost entirely in the pedal. I don't feel the brakes release and reapply as you would with ABS engaging but the pedal feels that way, without the brakes releasing. It only lasts for less than a second and the pedal is fine again. It's hard to explain, sorry.  I'll get under this weekend and just double check everything is tight. Fluid is at max where I left it.
    • What bedding in procedure did you use?   When you say stutter, what exactly do you mean? Like it feels like someone letting go of the brakes momentarily and regrabbing them again to get you to stop? Re-reading your post, and that is what it kind of makes me think you're explaining, like theres a little bit of a jolt, likely just as you're reaching a stop. I've only had this issue once. And if its caused by what caused mine, you will want to get the car up on stands again and check it over. Mine was a case of a caliper mounting bolt coming out and letting the caliper rotate on the other remaining bolt and gave play in a wheel as it came to a stop. But not every stop either!
    • Yeop... binned it   This will be a summary will not many pics atm and cbf  Fixed the samsonas - it was totally munched Put a new precision 7675 T4 on with proper split pulse mani Got to Sydney to get to car - drove to canberra to get racecar - drive back to sydney that night Next day all day at Plasmaman putting on new clamps cleaning some things up and adding another large engine oil cooler sitting at the rear above diffuser to keep things cooler Next day - Tuesday - on Dyno - killer wikid awesome pumped out really good numbers - more mid range and on lower boost levels Wednesday - first prac - all day again getting the suspension right - had to borrow front suspension again - out do a lap come in - out do a lap - in - what i had just couldnt handle the load at the more consistent higher speeds - got a lap in at the end of the day that was pretty reasonable  Put it this way that lap wouldve had me in 4th in Pro am for the whole event - with only 700 hp and used tyres Thurs first official prac day - lap out warm up - then entered a hotlap with above setting and 80% effort took corners 1,2,3 and into 4 car felt awesome -  rear came around out of nowhere bang into the wall near front on at whatever 140 kmph Done, over, gone Just one of those how did that happen apparently as all indications show nothing out of the ordinary Got to spend the rest of the time at the event like I hadnt done before - was actually Ok mainly as I had my family and my boy is 9 and got treated like a rockstar Long trip home, lost a trailer wheel in nowhere land, X5 airbag suspension gave up half way across nullabour and rode on bumps stops (its now completely fine) had to do a 19 hr drive day on day 3 as accommodation got screwed up so just had to keep driving till found a town with some Now to reassess - hopefully the motor and other things are OK but yet to be seen too. There is no easy fix there is no i'll just order that part and get it sent - we'll have a talk to people see what can happen and what the go is but at minimum its rebuild from scratch struts forward and alot of time effort and $ should and if I return and if but maybe/ when  I have the cage tied into the front strut towers - if I didnt have that things couldnt been worse you can say its just a front end but if you know what goes into these cars... you'll know what that actually means in reality   Car was very fast. Disappointing we just didnt get to show it Effort doesnt win you races though     Apparently this is motorsport !  
    • Thanks, will do that.  Thankfully they still feel great.
×
×
  • Create New...