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Drill mod for clutch slave????

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Old Apr 23, 2010 | 12:37 PM
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Default Drill mod for clutch slave????

I'm going to be reinstalling my clutch when it comes back but before I do I want to get all the little stuff out of the way first.

I remember that on the F-Bodies there was a drill modification done to the slave cylinder feedline. It was kind of like a restrictor that restricted clutch fluid to the slave. Doing this mod improved clutch feel as well as performance.

Is there a similar mod for the C6????

If so, can someone post up a link, details or pics?

Thanks
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Old Apr 23, 2010 | 06:22 PM
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I don't know about any "drill mod", but there is a remote bleeder mod.

Take a look at this thread that shows the OE clutch bleeder location and how difficult it is to get to:


http://forums.corvetteforum.com/c6-z...he-clutch.html


And here's a link to Katech's remote bleeder (do a search on their site for "remote clutch bleeder":

http://www.katechperformance.com/

Remote clutch bleeder kit
KAT-A4824 For C6 Corvette (including Z06 & ZR1) $139.99




Bob
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Old Apr 23, 2010 | 06:35 PM
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Originally Posted by Sparo2
I'm going to be reinstalling my clutch when it comes back but before I do I want to get all the little stuff out of the way first.

I remember that on the F-Bodies there was a drill modification done to the slave cylinder feedline. It was kind of like a restrictor that restricted clutch fluid to the slave. Doing this mod improved clutch feel as well as performance.

Is there a similar mod for the C6????

If so, can someone post up a link, details or pics?

Thanks
Drilled line didn't help my '00 Formula. The consensus opinion for the clutch problems on the C6 seems to be frequent fluid changes. See the Ranger Method in the Freq. Questions section.
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Old Apr 23, 2010 | 08:47 PM
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I know about the remote clutch bleeder mod. I already have one from RPM Motors.

The mod that I'm referring to involves drilling or boring out a restrictor that's in the slave cylinder feedline. Doing this would allow more fluid to pass through which would improve the clutch's performance.

I did this on my F-body Camaro and it helped out. The clutch felt as though it engaged quicker when the pedal was popped and the fluid also stayed clean a little longer.

Just wondering if a mod like this could be done on the C6.
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Old Apr 24, 2010 | 08:48 AM
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That's a good question. There were, in fact, THREE restrictors in the C5 clutches, I drilled out all three of them when my stock clutch took a dump and I put in a Spec II. Never had another problem but as new clutch went in at same time as drilling, can't say it helped. But it sure didn't hurt.
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Old Apr 24, 2010 | 01:21 PM
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Originally Posted by Sparo2
Doing this mod improved clutch feel as well as performance.
What do you mean by "performance?"
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Old Apr 24, 2010 | 02:04 PM
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Originally Posted by torquetube
What do you mean by "performance?"
It improved the clutch's performance. The clutch would engage quicker and it would also slipping in some cases. Basically with the restrictor removed more clutch fluid was allowed to get to the slave much quicker which improved how fast the slave could operate.
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Old Apr 24, 2010 | 04:53 PM
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Shouldn't be an issue anymore, as later model F-Bodies had the restriction removed, doubtful that it was brought back for the C6
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Old Apr 24, 2010 | 07:07 PM
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The 03 c5 has it for sure, my buddy drilled his out. I have some pics somewhere I'll try to dig them up.

Don't know about the c6 but it should be pretty easy to check while the torque tube is out.
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Old Apr 24, 2010 | 07:35 PM
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If there is a restrictor, where in the line would it normally be located? I have everything out right now so being able to get to everything will be pretty easy.
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Old Apr 24, 2010 | 09:15 PM
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I'm not sure if the C6 are the same, but on my C5 the main restriction was in the lline going into the slave



these are some pictures of my modify line and a stock line.



I even went one step further and made a entirely new line from the master to the slave.

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Old Apr 25, 2010 | 03:44 PM
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Originally Posted by wanttospeed
I'm not sure if the C6 are the same, but on my C5 the main restriction was in the lline going into the slave



these are some pictures of my modify line and a stock line.



I even went one step further and made a entirely new line from the master to the slave.

Did you feel any difference in the way the clutch operated?
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Old Apr 25, 2010 | 09:50 PM
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Originally Posted by Sparo2
Did you feel any difference in the way the clutch operated?
Yes, it felt less spongy. It engages quicker and felt a little lighter. Also, the fluid stays cleaner a little longer. I still flush it out alot out of habit.
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