have a v8, 6-speed, and more than 450rwhp? this ? Is for you... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Da Mammer · 06-25-2013, 06:58 PM

So just wondering from you guys that have been there done that. When you get past a certain point in power notice the clutch starts halving its return from shift to shift at high throttle. Now I understand that it's heat attributed to centrifugal forces that break down the clutch fluid (dot 3 brake fluid) viscosity, but I have also been told that the simple fix is a heavy duty clutch return spring. My question is have you changed to dot 4 for a higher viscosity breakdown point fluid ~120 degrees higher boiling point (and therefor bled the entire brake line), or did you just swap the clutch return spring to solve the issue and how well did either work? And apparently i have to throw it in here as well but i DON'T have a stock clutch anymore. i have a ZR1 clutch/pressure plate thats well overrated (960ft lbs) for my current power. no speeches on 'just slapping in a better clutch/pressure plate'. Thanks.

camaroRND2 · 06-25-2013, 09:12 PM

im exactly at that power point and my clutch is spongey after some fun driving. honestly man ur clutch is just holding on by a thread anyways so u can keep doing all the cheap easy fixes that prolonge the inevitable or do what i did and buy a clutch design for ur power and driving style. Mantic 9000 was my choice light weight and can easily handle the power when i slap the whipple on it as well. either way man good luck.

paul84043 · 06-25-2013, 09:15 PM

I think a tranny/clutch rebuild is in my future for this exact reason.
I have no intention of ever selling my Camaro, I will simply continue to modify and repair as necessary to keep her new and hot.

Da Mammer · 06-25-2013, 09:34 PM

Quote:

Originally Posted by camaroRND2

im exactly at that power point and my clutch is spongey after some fun driving. honestly man ur clutch is just holding on by a thread anyways so u can keep doing all the cheap easy fixes that prolonge the inevitable or do what i did and buy a clutch design for ur power and driving style. Mantic 9000 was my choice light weight and can easily handle the power when i slap the whipple on it as well. either way man good luck.

Not looking for a cheap fix, im looking for the solution to the problem. I have an 8 bolt Lingenfelter flywheel and zr1 style twin disc clutch rated for 960 ft lbs. I don't think the issue is my clutch..

two_wheel_mayhem · 06-25-2013, 09:41 PM

Has nothing to do with your clutch fluid.

All about the centripetal force holding your pressure plate disengaged at high rpm.

Solution is buying pressure plate with more spring pressure (non-stock)

Da Mammer · 06-26-2013, 08:51 AM

Is there noone with the burden of knowledge able to answer?

Good2go · 06-26-2013, 03:14 PM

I wish I could help, I'm at 490rwhp on the stock clutch with no problems.

stryker755 · 06-26-2013, 07:48 PM

I've had no problems with the stock clutch but havent drag raced yet, just spirited rowing.

Biscuitpie · 06-26-2013, 07:59 PM

I had this problem on boltons. -.-

i2disturbedSS · 06-26-2013, 08:10 PM

Saw this posted this morning. I dont have a answer but maybe the wrong section to ask... go to the v8 bolton section and find, dont remember but like the hardcore of camaro owners that been there done that and push it to the limit thread.
Maybe someone will give you the link im talking about

Secret Squirrel · 06-27-2013, 08:47 AM

Quote:

Originally Posted by Good2go

I wish I could help, I'm at 490rwhp on the stock clutch with no problems.

Same here. Never had any issues.

Doc · 06-27-2013, 10:57 AM

I'm running the Mantic 9000 twin-disk clutch and I'm using Super Blue brake fluid. No problem with the clutch pedal return. It's a great clutch; much smoother and better feel than stock. Try upgrading the brake fluid first then see how your clutch performs. I also have stainless steel braided brake lines which may help in keeping the line pressure consistent since they don't expand when hot like the rubber factory lines.

I'm going to separate the clutch and brake fluid reservoirs to keep clutch dust out of the brake lines but that solution might also help you with your issue. I haven't looked but are the lines from the clutch to the master cylinder hard steel or soft rubber? If they're rubber try replacing with braided SS so they don't expand when hot.

Da Mammer · 06-27-2013, 01:05 PM

Quote:

Originally Posted by Doc

I'm running the Mantic 9000 twin-disk clutch and I'm using Super Blue brake fluid. No problem with the clutch pedal return. It's a great clutch; much smoother and better feel than stock. Try upgrading the brake fluid first then see how your clutch performs. I also have stainless steel braided brake lines which may help in keeping the line pressure consistent since they don't expand when hot like the rubber factory lines.

I'm going to separate the clutch and brake fluid reservoirs to keep clutch dust out of the brake lines but that solution might also help you with your issue. I haven't looked but are the lines from the clutch to the master cylinder hard steel or soft rubber? If they're rubber try replacing with braided SS so they don't expand when hot.

Thanks for the input doc. Where did you get your SS lines from might I ask? Btw i followed the thread on your car awesome job with the weight program you've done on your car, very nice work sir.

Dupree878 · 06-27-2013, 01:06 PM

Only time I've had problems is at the drag strip. Damn near didn't have a clutch the first time I left.

06-25-2013, 06:58 PM	#1
Da Mammer Drives: 2010 camaro SS... shell... Join Date: Nov 2012 Location: Pennsyltucky Posts: 237	have a v8, 6-speed, and more than 450rwhp? this ? Is for you... So just wondering from you guys that have been there done that. When you get past a certain point in power notice the clutch starts halving its return from shift to shift at high throttle. Now I understand that it's heat attributed to centrifugal forces that break down the clutch fluid (dot 3 brake fluid) viscosity, but I have also been told that the simple fix is a heavy duty clutch return spring. My question is have you changed to dot 4 for a higher viscosity breakdown point fluid ~120 degrees higher boiling point (and therefor bled the entire brake line), or did you just swap the clutch return spring to solve the issue and how well did either work? And apparently i have to throw it in here as well but i DON'T have a stock clutch anymore. i have a ZR1 clutch/pressure plate thats well overrated (960ft lbs) for my current power. no speeches on 'just slapping in a better clutch/pressure plate'. Thanks. __________________ tried LSXTC...now I'm LSXOD... Last edited by Da Mammer; 06-25-2013 at 10:42 PM.

06-25-2013, 09:41 PM	#5
two_wheel_mayhem Would rather be riding Drives: No car no more Join Date: Jul 2009 Location: Indiana Posts: 2,750	Has nothing to do with your clutch fluid. All about the centripetal force holding your pressure plate disengaged at high rpm. Solution is buying pressure plate with more spring pressure (non-stock) __________________ No dog in this fight anymore. 5th Gen owner 2009-2016.

06-26-2013, 08:51 AM	#6
Da Mammer Drives: 2010 camaro SS... shell... Join Date: Nov 2012 Location: Pennsyltucky Posts: 237	Is there noone with the burden of knowledge able to answer? __________________ tried LSXTC...now I'm LSXOD...

06-26-2013, 03:14 PM	#7
Good2go Team Chevrolet Drives: 2007 Z06 and 2011 Camaro 2SS Join Date: Jan 2011 Location: San Antonio Posts: 441 View My Garage	I wish I could help, I'm at 490rwhp on the stock clutch with no problems. __________________ Forgeline GA3's 9.5/11 with NT-05 Nitto's, Pedders Sportsryder Supercar Coilovers, MGW Shifter, LPE GT1-1 Cam, AR 1 7/8" LT's, Halltech CAI, SW Retro Chambered Cat-Back, Installed and tuned by Corey @ Henderson Performance Technology.

06-26-2013, 07:48 PM	#8
stryker755 Drives: 2013 ZL1 Vert AGM Join Date: Apr 2009 Location: Michigan Posts: 319	I've had no problems with the stock clutch but havent drag raced yet, just spirited rowing. __________________ Camaros Owned: -2013 ZL1 Vert A6 Ashen Gray 700HP (Current) -1986 Z28 Blueprint 383 Stroker 430HP (Current) -2010 2SS/RS Silver Ice M6 TVS2300 700HP (SOLD) -2010 2SS Aqua Blue M6 Stock (SOLD) -1986 Sport Coupe Gray Built 355 (SOLD)

06-25-2013, 09:12 PM	#2
camaroRND2 Drives: IBM 2SS/RS 6sp. Join Date: Jan 2012 Location: Valdosta Ga Posts: 541 View My Garage	im exactly at that power point and my clutch is spongey after some fun driving. honestly man ur clutch is just holding on by a thread anyways so u can keep doing all the cheap easy fixes that prolonge the inevitable or do what i did and buy a clutch design for ur power and driving style. Mantic 9000 was my choice light weight and can easily handle the power when i slap the whipple on it as well. either way man good luck.

06-25-2013, 09:15 PM	#3
paul84043 Drives: 2015 Camaro 2SS RS 1LE Join Date: Nov 2011 Location: Lehi, Utah Posts: 1,349 View My Garage	I think a tranny/clutch rebuild is in my future for this exact reason. I have no intention of ever selling my Camaro, I will simply continue to modify and repair as necessary to keep her new and hot.

06-26-2013, 07:59 PM	#9
Biscuitpie Drives: '11 Cammed LS3, '14 Scion FRS Join Date: Dec 2011 Location: Dallas, TX Posts: 758	I had this problem on boltons. -.- __________________ SOLD with a Z06 in the not too distant future: Cammed, boltons, axles, lowered, and more. \| 476 WHP

06-26-2013, 08:10 PM	#10
i2disturbedSS Drives: 2010 SS L99 IOM Join Date: Aug 2012 Location: CA Posts: 1,924	Saw this posted this morning. I dont have a answer but maybe the wrong section to ask... go to the v8 bolton section and find, dont remember but like the hardcore of camaro owners that been there done that and push it to the limit thread. Maybe someone will give you the link im talking about __________________ 369rwhp/392rwtq "Spending money I don't have, to buy parts I don't need, to impress people I don't know!" -Jenkins

06-27-2013, 10:57 AM	#12
Doc Dances With Mustangs Drives: 2010 1SS/RS MT Join Date: May 2009 Location: USA Posts: 3,819 View My Garage	I'm running the Mantic 9000 twin-disk clutch and I'm using Super Blue brake fluid. No problem with the clutch pedal return. It's a great clutch; much smoother and better feel than stock. Try upgrading the brake fluid first then see how your clutch performs. I also have stainless steel braided brake lines which may help in keeping the line pressure consistent since they don't expand when hot like the rubber factory lines. I'm going to separate the clutch and brake fluid reservoirs to keep clutch dust out of the brake lines but that solution might also help you with your issue. I haven't looked but are the lines from the clutch to the master cylinder hard steel or soft rubber? If they're rubber try replacing with braided SS so they don't expand when hot. __________________ Blue Angel is here!! 1SS/RS LS3 M6 IBM

06-27-2013, 01:06 PM	#14
Dupree878 Drives: '13 Dusk Edition 2SS/RS M6 Join Date: Nov 2012 Location: Tuscaloosa, AL Posts: 600	Only time I've had problems is at the drag strip. Damn near didn't have a clutch the first time I left. __________________