Sticking clutch pedal issues - Tick Performance feels your pain! - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Matt@Tick · 07-22-2011, 09:24 AM

Quote:

Originally Posted by pnyklr

Is the computer controlling flow based on the position of the clutch?

-Funk

No, just monitoring clutch pedal position.

Quote:

Originally Posted by ducatisl

Yep, ran into that when installing a 2-step: Had to install a programmable TPS switch on that CMOS signal wire coming from this odd OEM clutch switch just to act like a...#$%@$ clutch switch!

Glad to see Tick engineering solutions for 5th gens. All my 4th gen friends use your products and it kinda makes me jealous they have such good options!

Thank you for the kind words - we're working hard at it!!

AquaRSSS · 07-22-2011, 11:23 AM

Quote:

Originally Posted by Joey@Tick

No, just monitoring clutch pedal position.
Thank you for the kind words - we're working hard at it!!

Ok, so what exactly does the computer do based on the clutch pedal position? Considering that RAM clutches now has a hydraulic adjuster available that allows us (5th gen'ers) to set the pedal at any height we want, what would the computer do or care about where the clutch pedal is? Since there are no governors\controllers anywhere that it could interfere with or activate to override or change clutch engagement, etc. what's the point of the ECM even tracking clutch pedal position? Sounds like something else a tuner will have to disable when it comes time to do anything with the car.
If anyone has any idea of the consequences of the clutch pedal travel being altered, I'd love to hear it. The only thing I could think of that might happen is that some idiotic code pops up that has to be cleared....

CyberPredator · 07-22-2011, 11:29 AM

does the ZR1 master cylinder flow more than ours? I wonder if there is a way for that to work.

Matt@Tick · 07-25-2011, 01:40 PM

I have exhausted my knowledge on the topic, as I'm merely in sales and we don't have any product developed yet.

I will pass this thread along to a product engineer of ours - perhaps he can chime in.

ducatisl · 07-25-2011, 02:55 PM

There are a number of parameters for clutch decel fuel that rely on clutch position.

Quote:

Originally Posted by AquaRSSS

Ok, so what exactly does the computer do based on the clutch pedal position? Considering that RAM clutches now has a hydraulic adjuster available that allows us (5th gen'ers) to set the pedal at any height we want, what would the computer do or care about where the clutch pedal is? Since there are no governors\controllers anywhere that it could interfere with or activate to override or change clutch engagement, etc. what's the point of the ECM even tracking clutch pedal position? Sounds like something else a tuner will have to disable when it comes time to do anything with the car.
If anyone has any idea of the consequences of the clutch pedal travel being altered, I'd love to hear it. The only thing I could think of that might happen is that some idiotic code pops up that has to be cleared....

*SSE 4 2SS* · 07-25-2011, 03:52 PM

Joey,

I am so subscribed to this thread, and will be a customer as soon as you have a solution. Ive changed shift forks, synchros, and the clutch... Still frying the clutch due to not being able to fully disengage my twin disc.

Let me know if you need some test vehicles and I'll drive to wherever you guys are and let you install it and set it up.... Then I'll give you feedback and an honest opinion for a big HP vehicle... If it works on mine, it should work on most I would think...

Just Offering...

nak3dsnake · 07-26-2011, 08:31 AM

Quote:

Originally Posted by Joey@Tick

I have exhausted my knowledge on the topic, as I'm merely in sales and we don't have any product developed yet.

I will pass this thread along to a product engineer of ours - perhaps he can chime in.

So i have a V6 with a manual trans. If I were to install the SS master cylinder, which I assume has a larger bore, would it help any. Since its larger and moves more fluid. Would it affect the pedals position?

Synner · 07-27-2011, 10:51 PM

Don't mismatch cylinder bore size and brakes. You have smaller brakes so you have a smaller cylinder. Screwing with that ratio can give you brakes that turn to mush or lock up your brakes all the time.

SUX2BU · 07-27-2011, 11:07 PM

Quote:

Originally Posted by Joey@Tick

I can elaborate somewhat, but since I'm not on our engineering team, I can't be incredibly specific.

Our Adjustable Master Cylinder Kit allows you to adjust the amount of fluid your hydraulic system flows by adjusting the pedal height up and down.

On the earlier GM models, the computer could only tell when the clutch was fully up or fully depressed because they had a cruise control switch and a clutch safety switch, which were adjustable so that contact could be re-established even if the pedal is slightly shortened after install of our kit (which is common).

Unfortunately, the 2009+ Corvette, 2009 G8 GXP and 2010+ V8 Camaro computers read the clutch pedal position much more precisely, for example the computer can tell if the clutch is 38% depressed. Since it's common for our kit to lower clutch pedal height (sometimes significantly), it's impossible to install a kit like ours and keep proper function of the vehicle.

We are working on a solution, and I'll certainly pass along more information as soon as it's made available to me!

Wow, that sucks. I guess I will have to mess with this when my stock clutch gives up.

nak3dsnake · 07-28-2011, 07:06 AM

Quote:

Originally Posted by Synner

Don't mismatch cylinder bore size and brakes. You have smaller brakes so you have a smaller cylinder. Screwing with that ratio can give you brakes that turn to mush or lock up your brakes all the time.

What does that have to do with the clutch master cylinder. It doesn't push enough fluid, the SS's may be slightly larger. I have Brembos and the SS brake master cylinder. They are separate cylinders.

Synner · 07-28-2011, 08:13 AM

Maybe I'm mistaken then but there's tons of V8 guys with sticking clutches so that won't fix anything.

nak3dsnake · 07-28-2011, 08:18 AM

Quote:

Originally Posted by Synner

Maybe I'm mistaken then but there's tons of V8 guys with sticking clutches so that won't fix anything.

I have a V6. Smaller master cylinder. V8 has larger, pushes more fluid. Understand now?

Synner · 07-28-2011, 08:21 AM

I was thinking of the reservoir but like I said V8 guys have a big problem with this so it won't be a fix. Plus if the computer is monitoring it like this thread states it could screw something else up without some sort of tuning solution too.

nak3dsnake · 07-28-2011, 10:53 AM

Quote:

Originally Posted by Synner

I was thinking of the reservoir but like I said V8 guys have a big problem with this so it won't be a fix. Plus if the computer is monitoring it like this thread states it could screw something else up without some sort of tuning solution too.

Its all just band aids on a wound.

07-22-2011, 11:29 AM	#17
CyberPredator 50 Shades of Prey Drives: TT/SS Join Date: Oct 2010 Location: Between 10 and 20 PSI Posts: 777	does the ZR1 master cylinder flow more than ours? I wonder if there is a way for that to work. __________________ Futral Motorsports built and tuned

07-25-2011, 03:52 PM	#20
SSE 4 2SS Boosted Moderator Drives: Bone Stock LS3 Join Date: Sep 2009 Location: Marion Tx Posts: 15,474	Joey, I am so subscribed to this thread, and will be a customer as soon as you have a solution. Ive changed shift forks, synchros, and the clutch... Still frying the clutch due to not being able to fully disengage my twin disc. Let me know if you need some test vehicles and I'll drive to wherever you guys are and let you install it and set it up.... Then I'll give you feedback and an honest opinion for a big HP vehicle... If it works on mine, it should work on most I would think... Just Offering... __________________ If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough...

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07-25-2011, 01:40 PM	#18
Matt@Tick Drives: All GM Performance Join Date: Jul 2011 Location: Mount Airy, NC Posts: 337	I have exhausted my knowledge on the topic, as I'm merely in sales and we don't have any product developed yet. I will pass this thread along to a product engineer of ours - perhaps he can chime in.

07-27-2011, 10:51 PM	#22
Synner Drives: cars Join Date: May 2011 Location: Oversneeze Posts: 4,545	Don't mismatch cylinder bore size and brakes. You have smaller brakes so you have a smaller cylinder. Screwing with that ratio can give you brakes that turn to mush or lock up your brakes all the time.

07-28-2011, 08:13 AM	#25
Synner Drives: cars Join Date: May 2011 Location: Oversneeze Posts: 4,545	Maybe I'm mistaken then but there's tons of V8 guys with sticking clutches so that won't fix anything.

07-28-2011, 08:21 AM	#27
Synner Drives: cars Join Date: May 2011 Location: Oversneeze Posts: 4,545	I was thinking of the reservoir but like I said V8 guys have a big problem with this so it won't be a fix. Plus if the computer is monitoring it like this thread states it could screw something else up without some sort of tuning solution too.