Transmission & slave cylinder

[xb-60]

Originally Posted by prp289

For the FIA, where can I go to buy the external TOB actuator and mounting plate.

Phil - here's a Two Guys Garage video on how a Tilton HTOB fits in. Seems there is plenty of choice in HTOB manufacturers. Which one is best....don't know yet.

[ame]https://www.youtube.com/watch?v=9agk3g0jWvs[/ame]

Cheers,
Glen

[DanEC]

"Light" is sort of a relative term. There are FE flywheels that weigh down in the single digits. It's pretty certain they will not work for you. I'm not sure what a Ford iron flywheel weighed but it was probably somewhere between 30 and 40 lbs. Between there is a lot of territory. I put a 22 lb flywheel on my FE and it revs very quick but drives easy in traffic. When I first put it on the road and before I was accustomed to the shift linkage yet, I made several 3rd gear starts by mistake and it just took off with little more effort than 1st gear. I suspect what will work best for you is something in the middle of the two extremes.

Also - I'm not familiar with SB Fords, but my slave cylinder mounts to the engine block on my FE. Is there not a similar option for the SB Ford? As often as hydraulic slave cylinders seem to fail - the thought of having to pull a transmission to replace a hydraulic TO bearing would not sit well with me.

[xb-60]

Originally Posted by DanEC

"Light" is sort of a relative term. There are FE flywheels that weigh down in the single digits. It's pretty certain they will not work for you. I'm not sure what a Ford iron flywheel weighed but it was probably somewhere between 30 and 40 lbs. Between there is a lot of territory. I put a 22 lb flywheel on my FE and it revs very quick but drives easy in traffic. When I first put it on the road and before I was accustomed to the shift linkage yet, I made several 3rd gear starts by mistake and it just took off with little more effort than 1st gear. I suspect what will work best for you is something in the middle of the two extremes.

Also - I'm not familiar with SB Fords, but my slave cylinder mounts to the engine block on my FE. Is there not a similar option for the SB Ford? As often as hydraulic slave cylinders seem to fail - the thought of having to pull a transmission to replace a hydraulic TO bearing would not sit well with me.

The flywheels that are described as "lightweight" for SBFs are around 11kg or 24 pounds, and that's what I will be using. These are very light cars with impressive power-to-weight ratios (no matter what engine you're using), so no need for heavier flywheel than that, and I think a lighter one - for my purpose - will not suit my driving.

As far as clutch slaves go, my tunnel shape does not allow a clutch fork (the bonus is better footwell space ), so I have to use an internal hydraulic throw out bearing. Now that I know a bit more about them and how they are fitted, I'm quite happy about using one. Reliability when using a known brand should not be a problem. I don't know for sure, but probably all or most 'moderns' with a manual transmission would be using HTOBs.

Cheers,
Glen

[DanEC]

Originally Posted by xb-60

The flywheels that are described as "lightweight" for SBFs are around 11kg or 24 pounds, and that's what I will be using. These are very light cars with impressive power-to-weight ratios (no matter what engine you're using), so no need for heavier flywheel than that, and I think a lighter one - for my purpose - will not suit my driving.

As far as clutch slaves go, my tunnel shape does not allow a clutch fork (the bonus is better footwell space ), so I have to use an internal hydraulic throw out bearing. Now that I know a bit more about them and how they are fitted, I'm quite happy about using one. Reliability when using a known brand should not be a problem. I don't know for sure, but probably all or most 'moderns' with a manual transmission would be using HTOBs.

Cheers,
Glen

Ehh - I would not call 24 lbs light by any stretch, but it's not heavy either. Probably a good compromise based on your preferences. Too bad not enough room for an external slave.

This would be called a light flywheel - 9 lbs.

http://www.summitracing.com/parts/fiz-186471

[xb-60]

9 pound? That sounds like hardly anything more than a flex plate with a small amount added for a friction surface!

Cheers,
Glen