FX600 / FX700 stroke to disengage?

[Matt Tripp]

I have your neon FX600 clutch in my first gen neon (NV T350 trans). I'm converting from the cable actuated setup to a Tilton master / Tilton hydraulic release bearing setup. The hydraulic release bearing has 0.500" of stroke, but they recommend 0.200" of clearance between the cylinder and the clutch diaphragm. This would leave 0.300" of movement against your diaphragm.

Would 0.300" be enough stroke to disengage the clutch? The contact diameter is 44mm (same as the TOB you provide). What is the minimum stroke to disengage? What is the maximum stroke before damage occurs?

Please advise!

[NeonDan]

hey matt can you take pics for a how to?

[Matt Tripp]

I have a lot of pics in my project log over on neons.org:

www.neons.org • View topic - Project Neon 2008 - Tilton HTOB & AEM Coil-On-Plug Install

[clutchmasters]

Quote: Originally Posted by Matt Tripp

I have your neon FX600 clutch in my first gen neon (NV T350 trans). I'm converting from the cable actuated setup to a Tilton master / Tilton hydraulic release bearing setup. The hydraulic release bearing has 0.500" of stroke, but they recommend 0.200" of clearance between the cylinder and the clutch diaphragm. This would leave 0.300" of movement against your diaphragm.

Would 0.300" be enough stroke to disengage the clutch? The contact diameter is 44mm (same as the TOB you provide). What is the minimum stroke to disengage? What is the maximum stroke before damage occurs?

Please advise!

I am waiting for my tech to get me an answer on this, I will let you know asap.

[clutchmasters]

I just got off the phone with Luis, and he mentioned that he already spoke with you. Anyways our twin requires 250 thousandths throw, so a pedal stop is recommended to protect from over throwing the diaphragm. Hope that helps.

[Matt Tripp]

Quote: Originally Posted by clutchmasters

I just got off the phone with Luis, and he mentioned that he already spoke with you. Anyways our twin requires 250 thousandths throw, so a pedal stop is recommended to protect from over throwing the diaphragm. Hope that helps.

Yep, I spoke to Luis..

For the record, he stated that 0.400" of throw would over-center the diaphragm. Based on the stroke of my HTOB, and the gap that exists at rest, that would never happen.

[SilverBeast]

Quote: Originally Posted by clutchmasters

I just got off the phone with Luis, and he mentioned that he already spoke with you. Anyways our twin requires 250 thousandths throw, so a pedal stop is recommended to protect from over throwing the diaphragm. Hope that helps.

If I am reading this right...Does that mean it take 250 thousands(quarter inch) to go from fully disengaged to fully engaged?

[Matt Tripp]

Quote: Originally Posted by SilverBeast

If I am reading this right...Does that mean it take 250 thousands(quarter inch) to go from fully disengaged to fully engaged?

Actually it means it takes 1/4" of movement of the TOB to go from rest (engaged) to disengaged. Don't assume this translates to 1/4" of movement of the pedal (which I think you're thinking) - there are lever ratios and master / slave cylinder bore & stroke ratios to consider. The pedal moves quite a bit more.

[SilverBeast]

ah...that makes sense.

I don't have problems street driving my FX 700. It is a little rough and you really gotta do it right but it can be done. I have other issues with it though that I should take care of. I'll be posting a thread when I have more time.

[littlepvt]

Hey Matt do you know if the HTOB you will be using also fits a SRT-4 with a FX700?