T9 Carbon bellhousing to Honda S2000

[s2k7]

xxx

Edited January 24, 2014 by s2k7

[BMW RACER]

I do love me the carbon fiber stuff!

 

But I have to wonder how reliable that is going to be.

[mhc]

The carbon bellhousing has now been used in a sprint and hillclimbing Westfield for the last three years with no problems.

Weight of bellhousing is 1150 grams.

Shown is a picture of the engine/gearbox combo.

http://i120.photobucket.com/albums/o185/mickmade/IMG_0555.jpg

[Ian7]

mhc: nice photo, I see a hydraulic throw out bearing actuation, and what looks like a bleeder line parallel to it, but what does the blue puch-pull cable on the tranny do? doesn't seem to be in an appropriate location for a sequential shift barrel actuation.

thx

[Ian7]

mhc: nice photo, I see a hydraulic throw out bearing actuation, and what looks like a bleeder line parallel to it, but what does the blue push-pull cable on the tranny do? doesn't seem to be in an appropriate location for a sequential shift barrel actuation.

thx

[Mondo]

Don't let Kevin see this... he's probably over budget already.

[WestTexasS2K]

The carbon bellhousing has now been used in a sprint and hillclimbing Westfield for the last three years with no problems.

Weight of bellhousing is 1150 grams.

Shown is a picture of the engine/gearbox combo.

http://i120.photobucket.com/albums/o185/mickmade/IMG_0555.jpg

 

What gearbox are you using? Looks like an Elite? I would be very intrested in this set up.

[mhc]

Hi.

The Elite IL200 6 speed gearbox uses that blue push/pull cable on the side of the gearbox to operate the reverse gear.

Happy to provide any more information.

Regards Mick

[s2k7]

xxx

Edited January 24, 2014 by s2k7

[WestTexasS2K]

MHC do you have a website?

[JohnK]

RE: why, when the S2000 has such an extraordinary trans would you want to mate the engine to a T9?

Car & Driver wrote about their picks of top sports cars one might consider purchasing used, listing the watchouts that you might expect for each. For the S2000 they noted that hard use would do in the synchros and that a new box was $2,000 or more. In such a situation moving to a high-end / racing trans might make sense, and the T9 is a common interface.

[s2k7]

RE: why, when the S2000 has such an extraordinary trans would you want to mate the engine to a T9?

 

If I'm not mistaken, I think the reason was the bulky and heavy S2000 bellhousing. Also, you can use a dogbox or sequential transmission using the carbon fiber?

The reason why the syncro are crapping out in some of the S2000, is because of the delay valve in the clutch slave cylinder. Owners jamming/shifting fast. Operational problem not the syncro.

 

Here another alternative:

[IMG]http://img841.imageshack.us/img841/3567/f20quaife2.jpg[/img] It's a quaife system.

Edited September 22, 2010 by s2k7

[JohnK]

Considering that the S2000's trans is so far advanced over a Ford T9, at first read many may wonder why one would consider such a switch - hence the note as to the sense of moving to a trans specifically designed for racing use, and that such trans have a T9 interface.

If the clutch salve cylinder delay mechanism is indeed the key to syncro failure that's good to know (I did take mine out). But I do know that starting at 2004 Honda added carbon fiber to the synchros, suggesting there was some experience that Honda had that argued for making the synchros more robust. I have to expect that if the problem could have been solved by deleting the delay mechanism, they would have been aware of that as a much more efficient solution.

[s2k7]

xxx

Edited January 24, 2014 by s2k7

[WestTexasS2K]

Where is this delay valve? I have never heard of it.

[s2k7]

xxx

Edited January 24, 2014 by s2k7

[jimrankin]

The delay is the way Honda and other manufacturers keep from "shocking" the slack out of the drive train when power shifting, helping low torque motors stay friendly with getting the cars off from stopped with out stalling and making shifts feel smoother than they would feel with a quicker take up. There is really no use for it in a performance environment.