F40 clutch

AP Racing.

Steve

 

Let me know what you do. I need to put a new one in mine too. Was thinking about sending off for a carbon on carbon treatment. About the same price as a factory clutch pack replacement.

 

Wes, I had the lightweight flywheel and clutch fron Carobu, I have to tell you as I told Tate Casey, it is a very well made unit and it works fantastic on the track, but it is TOTALLY unsuitable for the street. The stock flywheel is 34 lbs, the lightweight flywheel is 17. It makes it nearly impossible to take off on an incline and you look like a punk in traffic with high revs and jerky starts.

As you know, I have nearly 20,000 miles in a F40, a large number of those on the track, I would not reccomend anything other than a stock flywheel on the street and I would use Carobu's set-up if I only used the car on the track.

I had my lightweight flywheel for about 2 weeks before I went back to the stock setup, I sold the lightweight flywheel and moved on.

Tate and I are good friends and he runs a great company but IMHO that is a track only setup. Talk to Tate, I know he does have some street customers with that setup but I do not think it is street friendly.

I do not know have any experience with a carbon-carbon clutch, but I would stay with a stock flywheel...
Chris

 

I don't think the guy I was talking to was doing anything different to the stock clutch other that resurfacing it in the carbon application.

I was going to keep the original flywheel setup as I like the clutch the way it is currently, I just noticed it slipping at high rpms under boost here lately. Hey if I want to keep up with a 599, I better have my ducks in a row...right?

I also want to send the turbos off to have them rebuilt with Garrett guts, so they will be a lil easier to re-build from now on. Any suggestions other than taking the stock housings and having someone retro fit the new parts?

 

Wes, I dont have any advice on the turbo's, I know that is a real issue now on F40's. I paid $4,500 for the LM Turbo's new in the box 4 years ago, now they are $12,500! Crazy money!

If you can get a new clutch to use with the stock flywheel that would be ok. I will tell you a stock clutch lasted 5-years and 14,000 + miles in that car, that is hard to duplicate, so a stock clutch is not a bad choice.

 

The carbou unit is a tilton not AP. Tilton units come with a new flywheel and clutch kit. The AP unit works with the factory flywheel. We have installed a tilton unit on a customers f40 and it could not be driven on the street. It was changed with a Ap unit that works just fine.

 

Ap F40 clutch kit $2185 in stock ready to ship.

 

I've seen new clutch packs on eBay occasionally for substantially less.

 

+1.
Image Unavailable, Please Login

 

Pretty picture, Joe.

The AP brand is what Ferrari uses in their clutch pack.

 

Works well for me.

 

i did Carobu re-line of stock clutch and am happy so far; keeping the car very stock, down the DOT-required passive restraints, though.

 

Relines don't replace the slightly worn intermediate plate or diaphram, which are pretty stout. Once the reline is done the whole unit has to be balanced. This is why there is the pink paint mark on the new AP clutch in Joe's photo so that the parts don't get separately rotated.

There aren't too many places I would trust to do this. I would trust Carobu.
But why trust others when you can find new AP clutch packs on ebay for half the dealer part's price?

 

The original Carobu set-up was a Quartermaster, not a Tilton. The Tilton clutch is a direct replacement for the AP clutch and there is no difference on the street. Call Tilton directly. They have an application that will bolt unto the stock flywheel. Under $1000 in price. The AP unit is a copy of the tilton, thats why it used to be called AP/Tilton. Waste your money if you like, the Tilton is a better piece. I have a c-c Tiltom with a flywheel weight under 10 Lbs. Just have to drive it differently.

 

Check ebay. Ap current price 1399

 

I'm full of questions:
Are Tilton the ones stating that their unit is a "replacement" for the AP clutch?
Where is it established that the AP unit is a "copy" of the Tilton unit?
Can you show us where it used to be called "AP/Tilton"?

And a comment:
Many people dont want to have a change where they have to drive their F40 "differently".

 

Mac Tilton is an old friend. A number of years ago now he won an eight figure patent infringement suit against AP because they were stealing his multiplate clutch designs. For a period there US Customs were siezing AP clutches at the port. I am not sure if the F40 clutch was one of those though. I would be a little surprised that his name was on anything that their name was on except legal documents because he had so little respect for their product quality or their business ethics. If you ever mention that company in his presence be prepared to duck or run.

 

That explains all my questions.

Regarding my comment, how does the Tilton unit differ in driving?

 

The OE replacements work just ducky, forget "rebuilt-yopur wasting money, see other posters comments.
The flywheels RC at around 20-40, quite a wide range, this means that when they start to slip, they dish/tulip on the outer edges.
When GRINDING flat-after having removed all timing pins, the "step" MUST be resurfaced onto the flywheel. I reharden the unit, and finish grind the un it, all the whiule kjeeping an eye on the "step," AS THIS PREDICATES THE PRELOAD...
I also reccommend new flywheel bolts, rear main seal, pilot brg, all seals on the concentric TOB collar, and DON"T forget the timing pins back onto the flywheel!
good luck

 

I just spoke with Kirk Skaufel at Tilton Engineering today and he said they no longer produce a clutch pack for the F40.

All of the sudden that clutch pack on eBay is looking pretty good.

 

I have loads of spares.

 

Resurrecting this post, and wondering if there's any newer intel on F40 clutch part replacement options.

I've got the AP clutch pack already, but I'm being told I need a new flywheel. Any options/suggestions? Mine's been ground once already. Can it be done again?