We really need an LT1 sticky on clutch/flywheel options
12-16-2008, 12:14 PM
#77
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12-22-2008, 02:40 PM
#78
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I disected a Valeo PP and found that the fulcrum pivot points are cast into the heavy surface of the PP. IMHO you would have to completely recast this piece with the pivot points moved to a different spot. Moving the pivot points is how you do it in a coil spring type PP. The diaphramg springs are all the same. My clutch maker also confirmed this.
Unless there is another way.....
Unless there is another way.....
12-22-2008, 03:40 PM
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12-23-2008, 04:03 PM
#81
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I might have to do that. I should have an old one sitting around somewhere. If I ever get around to it I'll try to remember to post up some pics.
12-25-2008, 12:39 PM
#82
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Just thought I would say my ram powergrip HD pressure plate doesn't say valeo anywhere on it. Not sure how it compares to the valeo but it looks just like any other LT4 pressure plate that I have seen. It has also been completely deburred and it has also been balanced.
And a few other pictures of the powergrip HD for this thread. The mcleod single disk I'm running wont hold launches on nittos with my power level so I'm swapping it out.
And a few other pictures of the powergrip HD for this thread. The mcleod single disk I'm running wont hold launches on nittos with my power level so I'm swapping it out.
Last edited by speed_demon24; 12-25-2008 at 01:29 PM.
12-25-2008, 12:41 PM
#83
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I disected a Valeo PP and found that the fulcrum pivot points are cast into the heavy surface of the PP. IMHO you would have to completely recast this piece with the pivot points moved to a different spot. Moving the pivot points is how you do it in a coil spring type PP. The diaphramg springs are all the same. My clutch maker also confirmed this.
Unless there is another way.....
Unless there is another way.....
12-26-2008, 04:59 PM
#84
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Wanted to point out that the aluminum flywheels have steel inserts for the contact surface, bolted to the flywheel. The steel insert replacement for my Al Spec flywheel was $70 from LMPerformance, but no one lists the insert replacements on their website so you have to call.
Can you get just the pressure plate from any of the parts stores? Autozone doesn't list it separately. I got a new spec 3+ and pressure plate for $620 from LMPerformance, but if the pp's are really all the same and they're $150 cheaper from O'Reilly's or somewhere, I might see about sending the pp back.
Also by the way, you can't use the Spec flywheel (or probably any other flywheel except McLeod's) with the McLeod Street Twin.
Can you get just the pressure plate from any of the parts stores? Autozone doesn't list it separately. I got a new spec 3+ and pressure plate for $620 from LMPerformance, but if the pp's are really all the same and they're $150 cheaper from O'Reilly's or somewhere, I might see about sending the pp back.
Also by the way, you can't use the Spec flywheel (or probably any other flywheel except McLeod's) with the McLeod Street Twin.
12-26-2008, 05:28 PM
#85
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...Also here is what spec said about the pressure plates. Not sure if its true or not but i figured I'de post it.
"As for all plates being the same...this is a misconception. There are a number of manufactures out their that use the standard Valeo plate. SPEC on the other hand uses a similar cover design but greatly modifies the internals. This allows for tremendous increases in clamp load."
"As for all plates being the same...this is a misconception. There are a number of manufactures out their that use the standard Valeo plate. SPEC on the other hand uses a similar cover design but greatly modifies the internals. This allows for tremendous increases in clamp load."
12-29-2008, 08:06 AM
#87
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I was told by my local clutch maker the springs are all roughly the same spec. Obviously there are two of them out there, the ribbed and NON ribbed. I have not seen the NON ribbed except in GM LT1 PP's. He told me that by and large, there is little you can do to strengthen the diaphragm PP unless you recast the piece to relocate the pivot points.
01-20-2009, 12:21 PM
#88
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Well, I went to Autozone and picked up their LT1 clutch kit. $204 out the door including tax. For some reason they gave me 10% off for picking it up, which is reflected in the price.
Here is what I found: Part Number NU31265. Two things I noticed.
1) There is no Valeo stamped in the pressure plate, but it looks identical from the pictures of the Valeo model.
2) The Clutch disk only has four springs, versus the stock five. Is this an issue? What is the purpose of these springs, to take the initial shock of a hard engagement of the clutch, or intermittant spikes in torque? This is the only part that has me a little nervous.
Hope this is helpful for others.
Box:
Clutch Disk:
Pressure Plate and Bearing:
Dan
Here is what I found: Part Number NU31265. Two things I noticed.
1) There is no Valeo stamped in the pressure plate, but it looks identical from the pictures of the Valeo model.
2) The Clutch disk only has four springs, versus the stock five. Is this an issue? What is the purpose of these springs, to take the initial shock of a hard engagement of the clutch, or intermittant spikes in torque? This is the only part that has me a little nervous.
Hope this is helpful for others.
Box:
Clutch Disk:
Pressure Plate and Bearing:
Dan
what disk would be best to buy with 350 rwtq? not looking to get any more than 350 wheel with this motor so anything that could handle that would be great. possible track time with some slicks so i woiuld like something to handle a dump pretty much to.. would a spec 2+ be fine for that?? and if so could i just get any replacement PP from autozone and just resurface the stock flywheel??
Jeremy
01-23-2009, 11:43 AM
#89
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Location: Louisville, KY
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Valeo casting numbers
These are the numbers I'm getting off my Valeo Clutch kit pressure plate. This is not some other sellers kit, like AutoZone, but the Valeo kit. Do these numbers look right? I'm trying make sure I didn't get the wrong PP. The PP does have Valeo stamped on it.
382109-D0
187384 or maybe 167384.
These numbers look familiar?
My clutch guy says there number for the kit is K0082 HD. Any famliarity with that kit number.
Car is 95 Z28 M6
382109-D0
187384 or maybe 167384.
These numbers look familiar?
My clutch guy says there number for the kit is K0082 HD. Any famliarity with that kit number.
Car is 95 Z28 M6
Last edited by KYWes; 01-23-2009 at 11:46 AM. Reason: added words for clarity
01-26-2009, 03:36 PM
#90
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I saw the Carquest clutch today, it is made by LUK. The PP had a smooth, dark color casing and did NOT say valeo. It looked decent overall, and the disk (not the friction material) was definitely more buff compared to OE.