"How to" for drill mod??
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
"How to" for drill mod??
I have searched but found no pics or a write up on how to do this. I dont know which line to do it on (the slave line or master line). Anyone have any pics?
Race Director
Joined: May 2005
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From: West Norriton PA
St. Jude Donor '08
Le Mans Master
Joined: Aug 2007
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From: Orange Park FL
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Burning Brakes
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From: Oxford PA
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 6,979
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From: Wichita KS
I am doing a complete clutch change so I might as well while I am in there. I have the sticking pedal @ high rpm
Le Mans Master
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From: Phoenix Arizona
Le Mans Master
Joined: Aug 2007
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From: Orange Park FL
Good Luck.
Pit
Burning Brakes
Joined: Aug 2006
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From: Oxford PA
Question, If I am correct the SCCA must run all stock including hydraulics? I think they are allowed to adjust the computer they seem to be doing pretty well... I think that is what the mechanic told me over at Phoenix Performance Motorsports? They seemed to know a thing or 2 about SCCA cars.
Last edited by easyvette; Jan 9, 2008 at 06:20 PM.
Le Mans Master
Joined: Dec 2006
Posts: 7,251
Likes: 16
From: Phoenix Arizona
No, I think my trans or my 390 gears in the rear would go first...
Question, If I am correct the SCCA must run all stock including hydraulics? I think they are allowed to adjust the computer they seem to be doing pretty well... I think that is what the mechanic told me over at Phoenix Performance Motorsports? They seemed to know a thing or 2 about SCCA cars.
Question, If I am correct the SCCA must run all stock including hydraulics? I think they are allowed to adjust the computer they seem to be doing pretty well... I think that is what the mechanic told me over at Phoenix Performance Motorsports? They seemed to know a thing or 2 about SCCA cars.
ANYONE ELSE?
Racer
Joined: Jul 2006
Posts: 447
Likes: 0
From: San Jose Ca
OK I question this.
The Drill mod, is to allow fluid to move better. Those who have done the mod, and do not race - How do you knw a 100% complete flush of the hydraulic fluid, wouldn't have fixed the issue.
Now those who DO race, and have done the mod.
Wouldn't switching the entire system over to a higher boil temp DOT fluid, work the same ?
The Drill mod, is to allow fluid to move better. Those who have done the mod, and do not race - How do you knw a 100% complete flush of the hydraulic fluid, wouldn't have fixed the issue.
Now those who DO race, and have done the mod.
Wouldn't switching the entire system over to a higher boil temp DOT fluid, work the same ?
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
OK I question this.
The Drill mod, is to allow fluid to move better. Those who have done the mod, and do not race - How do you knw a 100% complete flush of the hydraulic fluid, wouldn't have fixed the issue.
Now those who DO race, and have done the mod.
Wouldn't switching the entire system over to a higher boil temp DOT fluid, work the same ?
The Drill mod, is to allow fluid to move better. Those who have done the mod, and do not race - How do you knw a 100% complete flush of the hydraulic fluid, wouldn't have fixed the issue.
Now those who DO race, and have done the mod.
Wouldn't switching the entire system over to a higher boil temp DOT fluid, work the same ?
I have the drill mod on my Textralia Twin and works well, no problems. I think the major problem with all of these clutch release problems is dirty stale hydraulic fluid and aged rubber seals that just give out due age and heat.
Most hydraulic slaves are located on the outside of the bell housings whereas GM puts them in the torque tube on the vette. Cheap materials also account for some of the problems.
The advent of the remote bleeder and some insulation material around the hose lines should give you some added longevity.
Former Vendor
Joined: Jan 2002
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From: Defending the US Constitution in Northern CA
FWIW
In the past we haven't done this mod, but we have seen a few low mile clutches combined with big horsepower that have shown signs of clutch slippage. Yet having ridden with the owners of the cars, I know that they do not have that clutch slipping, rest foot on clutch... driving style.
There really isn't any harm in doing the mod, you just need to have a small bit more finesse with letting the clutch pedal up.
We are going to try it on a guy that has well over 600hp/600#' tq cause he keeps killing clutches.
In the past we haven't done this mod, but we have seen a few low mile clutches combined with big horsepower that have shown signs of clutch slippage. Yet having ridden with the owners of the cars, I know that they do not have that clutch slipping, rest foot on clutch... driving style.
There really isn't any harm in doing the mod, you just need to have a small bit more finesse with letting the clutch pedal up.
We are going to try it on a guy that has well over 600hp/600#' tq cause he keeps killing clutches.