i need the specs on an OEM clutch for the ralliart... anyone know what the input shaft diameter is? how many spline? and overall diameter of the disc?
thanks,
jacob

 

Nice cars...

 

I am curious why you would need these specs because even if you found a similar clutch the pressure plate spring design could be different and wouldn't work anyways.

If your trying to save money don't...buy a clutch that is made for this car.

 

interesting question though , i would like to know how many lbs. of presure a stock ralliart clutch has compared to an aftermarket clutch.

 

Joe's evo... i'm not trying to piece **** together here... yeah, there are some kits out there, but just because a product is available doesn't mean that your only way out. i'm not trying to reinvent the wheel, but i know what i want. i have the means of having a product made to my spec for a fair price so i am.

jacob

 

Probably the best way to achieve this is to remove your own clutch and have your shop spec it out that way. I mean really I never said you were trying piece $hit together. Although you can't really pay enough for the R&D and testing that went into a clutch that is already made. So your fair price now becomes a unfair price in the long term.

If you want to be the test mule go for it although most of the time it is more trouble than it is worth.

 

blah

 

very true in what you said about R&D, but as we all know there are companies that manufacture garbage to make the almighty dollar. when there is demand product makes it to the shelf (good or bad, regardless of R&D)... and the story goes, if you don't buy it someone else will.

because the ralliart is my daily driver (that gets beat on almost daily), and my other ride is off the road awaiting a fresh bottom end, i can't really remove the clutch and spec it out that way. i'd feel like a test mule even if i purchased an aftermarket kit.. this way if it works, good... if it doesn't, i can just blame myself.

 

honestly
i was on your shoes a couple of months agos and ended buying a kit from SPEC clutch...


the have a lot of kits for our cars and you can cross order pressure plates and disc....

 

oh just remember the tranny of the ra is its 'achille's heel' dont pressure the tranny a lot becasue youll loose it...

 

i realize that, and that is why i want to set things up a certain way. everyone wants the grip with no slip, but they don't realize that in that scenario something has to absorb the excess punishment, and when nothing will budge something has to give.

i've always had more luck running a more aggressive disc with a relatively stock pressure plate. you get good initial bite yet still maintain enough slip to keep things from breaking and i say that loosely, as mechanical failure will result sooner or later.

 

at least you have common sense..
if you were to do that..
have a stock plate and find a 4 pug disk... works like a charm

 

You just said yourself it is your daily driver. So you would be blaming yourself when you cant get to work because you put a crappy clutch in your car that you are working hard to pay for. Furthermore I have not seen one item from RRM that is junk. So I think you should retort and think about your statement. Either way if the clutch set you get costs $250 when your all done with and the RRM costs $500 and lasts longer and has the R&D and reliability then you are better off.

Shortcuts typically lead you in the wrong path.I mean if you were making your own CAI or exhaust I would understand although some things you should not shortcut. You know that I am right.

 

all i said was that because my other car is down at the moment, it's out of the question for me to take the ralliart off the road just so i could spec out the clutch... i'm don't need a clutch job yet, just thinking/planning ahead.

i didn't say that i'd be blaming myself if i couldn't get to work because i put in a crappy clutch in my car. just because i may not be happy with clutch engagement or drivability does not mean i can't drive it to work. i would simply be blaming myself if the clutch setup i chose was not what i had hoped for. you need to read and actually understand what is being said.

i asked for some clutch specs... if you can't help, or don't know... don't post. if you want to tell me that i'm wrong because i want to develop my own setup... start another thread.

 

I will post where I want when I want. I know what it is like to develop something. Maybe you can see if a parts store stocks a clutch for the RA and buy it, get your specs and return it.

Nothing wrong with planning although I think you missed a few steps. You could spend all of that money on a clutch that is custom that failed and then your car would not move anywhere. I did read and understand what you said although like I said you missed a few steps.

So what am I going to do start a post that "cosworthrs500 is doomed to fail" ? I don't think so. If you can't handle criticism then you should not be in the game.