Lenco ST1200

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66Valiant528

66Valiant528

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Just wanted to share a picture of this beauty. Took over a year and a half and 6000
dollars to get. Its heavy and doesn't fit the floor very nice but its in with a Browell Bell
a McLeod Soft locker and a hydraulic throw out bearing on a 2 pedal Wilwood under the dash
assy. 3 master cylinders. 1 for the clutch and 2 master cylinders one for the front and 1 for the
rear. :)

20171211_125456.jpg
 
Wow. That’s damn cool. I’m interested in how the hydraulic throw out will work with the soft lok clutch?
More questions for you as I plan to run a soft lok with an A833.

I was wondering if the spring pressure would be hard on the hydraulic system? And how much free play is required from the throw out bearing face to the clutch fingers?
 
The pedal feels good. I believe its designed as a constant contact bearing. The soft locker is easy pressure. The counterweights give it all the clamping load.

20180918_192959.jpg
 
That is BAD, good for you. I can look it up, but you would know, is this the street version or race version? I remember they were making an aluminum box for street cars.
 
I hope this new ST1200 seals better than to original ones, my buddy had one behind a blown 540 ford and it was always leaking fluid from some where.
 
Yes its aluminum sections and yes it leaked from the pipe plugs on the bottom of each section because they weren't tight. 30 wt
non detergent oil.
 
mopardude318 said:
Wow. That’s damn cool. I’m interested in how the hydraulic throw out will work with the soft lok clutch?
More questions for you as I plan to run a soft lok with an A833.

I was wondering if the spring pressure would be hard on the hydraulic system? And how much free play is required from the throw out bearing face to the clutch fingers?
Click to expand...
And yes it is a constant contact bearing. You use spacers to shim the bearing to the fingers per the McLeod instructions. Thet make a specific bearing for a Lenco.
 
mopardude318 you need .125 to .250 clearance between the levers and the throwout bearing. I always keep mine at the widest gap, the more counter weight the wider the gap. With counter weight you will actually feel the clutch pedal start pushing on your foot when holding it down and bringing the rpm's up. The heavier the counter weight and the higher the rpm's the more you will feel it pushing up, that's why you need the wider gap so the levers do not contact the t.o. bearing as the the rpm's go up and start disengaging the clutch.
 
66valiant528, Real nice set up, always wanted to try one of those never could afford one. Good luck and waiting to hear how the Lenco works out.
 
Its been a long time since I set it up. I do believe there was a "range" because the bearing only travels so far. You do need to shim the bearing to I'll say what you pointed out, but I believe once you step on it the bearing continues to ride on the fingers. I don't know that the fingers rise as you accelerate but with a Lenco I only use the bearing for launch, after that its just pull the levers.

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BTW I haven't got this car to the track yet....No exhaust drag car only, trying to anticipate tech guys gripes. Almost there. Need an engine diaper (Epping wants one at 10.9....) drag link goes through the pan….and argued with the head tech guy about a trans blanket. Pretty sure I don't need one by the rules but he says I do....don't need to argue with him too much before I get to the track with the car.
 
I have never ran one of these clutches with hydraulic TO bearing so I can't really say what the set up is for them. But on my mechanical linkage I set it with 2 1/2 inches of free play at the pedal( I have 6 inches of pedal travel) which gives me .200 to.250 TO. bearing clearance and at the pedal stop that gives me a little more than .060 departcher on the disc At my 6400 shift rpm with 8.5 grams of counter weight on each lever I will lose better than half of the free play from the levers moving out from the centrifugal force. But my mechanical linkage ratio would be totally different than the hydraulic ratio. Mopardude318 I am sorry I just relieved that you are going hydraulic too, so I would say call Mcleod or better yet one of the clutch guy who set these clutches up and ask for their recommendation.
 
66Valiant528 said:
Just wanted to share a picture of this beauty. Took over a year and a half and 6000
dollars to get. Its heavy and doesn't fit the floor very nice but its in with a Browell Bell
a McLeod Soft locker and a hydraulic throw out bearing on a 2 pedal Wilwood under the dash
assy. 3 master cylinders. 1 for the clutch and 2 master cylinders one for the front and 1 for the
rear. :)

View attachment 1715382295
Click to expand...
:thumbsup:
 
That lenco is a nice piece. I'm running hyd. TO w/ my soft-lok & jerico. Would be happy to start another thread as I'm sorting mine out. Not sure if I'm going to keep it. Would be interested in others set ups.

66Valiant528 is correct, it will ride the fingers. So it needs to be spaced correctly to allow the levers to compress it further as the counterweights come in.
 
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