Clutch pedal pressure LS/T56

[slofut]

I sat in an '02 vette with a ZF 6pd the other day and the clutch pedal effort was VERY light and smooth.
With the LS/t56/C3 conversion, is this still the case? I'm using a factory '04 gto motor and clutch, and the t56 is from an unknown year camaro. What clutch master/slave and mods would make the clutch effort and feel most like the '02 vette?
Bill

[HardcoreABN]

Clutch pedal effort is based on 3 things: Clutch master cylinder, throw out bearing, pressure plate. With all stock items, you will have a nice and smooth and light pedal effort.

[Sly Vette]

Originally Posted by slofut

I sat in an '02 vette with a ZF 6pd the other day and the clutch pedal effort was VERY light and smooth.
With the LS/t56/C3 conversion, is this still the case? I'm using a factory '04 gto motor and clutch, and the t56 is from an unknown year camaro. What clutch master/slave and mods would make the clutch effort and feel most like the '02 vette?
Bill

I agree with ABN above but I'm not familiar with the '02 set-up. Does it have a master/slave cylinder system or a master/hyd. throwout bearing system?
I will be replacing my clutch in my '69 in the Spring. It has a WC T-5 trans with a master cyl/slave cyl. system and I'm thinking about changing to a hyd. throwout bearing.
Sorry for the semi-hijack....
MERRY CHRISTMAS!

[HardcoreABN]

All 97+ have a master cylinder with a hydraulic throw out bearing. They are also Tremecs T56 (C5/C6) or TR6060 (Z06? and ZR1).

The pressure plate I have is rather heavy, but I have an upgraded master cylinder so that offsets it quite a bit.

I would NOT suggest going with a GM clutch master cylinder as they are notorious for being weak and failing. Tick sells a great Tilton master cylinder that is amazing. The GM throw out bearing is more than capable of handling what you throw at it, so there is no issues using that- as long as you install it properly and make sure it is assembled properly.

[slofut]

Originally Posted by HardcoreABN

Clutch pedal effort is based on 3 things: Clutch master cylinder, throw out bearing, pressure plate. With all stock items, you will have a nice and smooth and light pedal effort.

That's what I was hoping but I have seen the other masters recommended (as you mentioned the Tilton below), and also the fact that the angle of the master looks to be off tangent to the pedal travel. I'm wondering if the angle isn't probably better on the newer hydraulic equipped cars. But I know lots of you folks have already done this on c3's and have first hand knowledge.
So the Tilton (is that what Josh uses?) maintains nice pedal feel? And do you lose pushrod travel as the pedal nears the floor? And lastly, am I overthinking this?
Thanks for all the replies!

[slofut]

Originally Posted by Sly Vette

I agree with ABN above but I'm not familiar with the '02 set-up. Does it have a master/slave cylinder system or a master/hyd. throwout bearing system?
I will be replacing my clutch in my '69 in the Spring. It has a WC T-5 trans with a master cyl/slave cyl. system and I'm thinking about changing to a hyd. throwout bearing.
Sorry for the semi-hijack....
MERRY CHRISTMAS!

Thanks Sly,
The t56 does have a hyd throwout bearing. Looks like the trick to me but for the push connect hydraulic line fitting. I guess they're ok with just an o-ring to seal.

[Sly Vette]

I currently have a G.M clutch master cyl. in my car. It is out of a '85 1 ton truck and the angle is a perfect match for the angle we need on our C-3's. I have approx. 30,000 miles without a problem. I did have to change the slave about 15,000 miles ago but that was due to the fact that a seal failed because there was no shield in place to protect the slave from the heat of the headers.
I will probably stay with the system I have in place now however I will be a bit more diligent with the clutch pivot installation. With my bell housing/adapter plate/trans I have installed the pivot I have,which is adjustable, is not accessible. I will make sure when I get everything apart to measure EXACTLY the distance from the pivot to the flywheel. Now if I could find,in a search,what that distance is. I know I've seen it somewhere.

[EASYGEAR]

" . . . fine tune clutch pedal heights regulates over-travel of the release bearings .
.... excessive travel can destroy bearing or cause clutch diaphragm to travel over center, resulting in high rpm engagement troubles . . .

..... compared with factory-style originals, most modern high-performance aftermarket clutches require less travel in disengage. As result, the pedal often sits higher than the enthusiast might desire .... " ( which is excactly what i have experienced )




Does anyone have experience with the clutch pedal adjuster ?


http://www.ramclutches.com/zen-cart/...roducts_id=677

I am also having a LS / T-56 conversion in the make, and i have concerns regarding pedal height.
In an earlier build, which wasn`t LS and not hydraulic clutch, but a high-performance clutch, the pedal was coming up so high, very annoying. I had two shops checking, but it definitely couldn`t been set lower.

From what i have heard the same thing can occur with the six-speed / hydraulic clutch devices.

It would be interesting to hear from others that have tried on this.

[MIKE80]

I installed my T56 different than most. I used a conversion kit that came with a hydraulic throw out bearing for my 94' T56, converting the pull clutch to a more conventional push design. Shifting easy and smooth.

http://www.digitalcorvettes.com/foru...36#post1969236