GMPP clutch vs stock LNF clutch. What are the differences?
01-04-2014, 02:57 AM
#77
Senior Member
Gmpp clutch in HHR
I have a 2010 HHR SS with about 19k miles. I'm trifecta tuned and my clutch slips in 2nd at the strip. I am second owner and I believe clutch may not have been broken in properly from day 1. Ill admit I have slipped the clutch too much a few times enough to where I could "smell" it. Gonna upgrade the clutch so I can start adding more power/tq. So i have a few question and hopefully you guys can help me out:
1: with the HHR FDR different from cobalts, am I susceptible to more clutch wear?
2: the current clutch may be partially glazed and flywheel may be burnt? Should I get a new lnf flywheel from ZZP before I attempt to install the gmpp clutch?
3: should I buy the Cobalt Clutch Pipe part# 24422067 and/or the Ecotec clutch pilot tool part# 14534?
New clutch is on my winter mod list and I'm gonna slap this bitch in there soon so any advise would be helpful and appreciated.
1: with the HHR FDR different from cobalts, am I susceptible to more clutch wear?
2: the current clutch may be partially glazed and flywheel may be burnt? Should I get a new lnf flywheel from ZZP before I attempt to install the gmpp clutch?
3: should I buy the Cobalt Clutch Pipe part# 24422067 and/or the Ecotec clutch pilot tool part# 14534?
New clutch is on my winter mod list and I'm gonna slap this bitch in there soon so any advise would be helpful and appreciated.
01-04-2014, 09:01 AM
#78
buy an lsj flywheel whereever its cheapest, internchangeable with LNF DONT worry about internet wisdom on differences; clutch pipe is good idea; you will need flywheel bolts. clutch disc alignment tool is an essential tool for the job. Crate engine depot .com sell LNF clutch kits with prices at GMPP levels. good luck
01-04-2014, 09:27 AM
#79
buy an lsj flywheel whereever its cheapest, internchangeable with LNF DONT worry about internet wisdom on differences; clutch pipe is good idea; you will need flywheel bolts. clutch disc alignment tool is an essential tool for the job. Crate engine depot .com sell LNF clutch kits with prices at GMPP levels. good luck
01-13-2014, 12:26 AM
#81
Senior Member
buy an lsj flywheel whereever its cheapest, internchangeable with LNF DONT worry about internet wisdom on differences; clutch pipe is good idea; you will need flywheel bolts. clutch disc alignment tool is an essential tool for the job. Crate engine depot .com sell LNF clutch kits with prices at GMPP levels. good luck
01-17-2014, 04:29 AM
#83
Senior Member
01-17-2014, 08:53 AM
#84
^^^ what is wrong with this statement, its pretty darn close . The pressure plate is 100% the same, the clutch disc has different lining and a slightly different spring pack in the center section of the friction disc, the TOB is 100% LNF.
Not sure what the issues here are, we keep going back and forth , there are numerous threads on it, and both Tom@ced and I have stock on the shelf to compare. FURTHER, Tom has put an LNF kit together priced as close to GMPP as possible with the same parts as GMPP as GM dont do packages like that much
hope this helps. Not sure what folks do. Maybe dont read the thread? I have repeated this info numerous times. ugh
Not sure what the issues here are, we keep going back and forth , there are numerous threads on it, and both Tom@ced and I have stock on the shelf to compare. FURTHER, Tom has put an LNF kit together priced as close to GMPP as possible with the same parts as GMPP as GM dont do packages like that much
hope this helps. Not sure what folks do. Maybe dont read the thread? I have repeated this info numerous times. ugh
02-10-2014, 03:52 PM
#85
New Member
Join Date: 08-23-12
Location: Gulf Coast, MS.
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
So, if what I'm reading means what I think it does, my 09 LNF with GMS1, Injen Upper Charge Pipe and CAI, ZZP catless DP and soon to be ZFR with a tune to (an educated guess from others with more experience than I) 375-400whp/400-450wtq will be fine if I get the GMPP clutch kit? My stock clutch will eat itself from what I understand.
My 2 main concerns are;
If I get a clutch, i.e. KY S3 or 4 or SouthBend S4, and then my transmission implodes on itself.
I get a GMPP and it slips and dies because it can't handle the power being put down.
If the GMPP can handle all of that, I'd much rather stick with that because I had it in my LSJ which, while stock, I loved that clutch. The feel and everything was comfortable to me with the way I drive. I'd rather not spend a bunch of extra money for no reason on a pricey clutch when the GMPP will do just fine. (I work for GM at a Chevy dealer. Cheap parts.
)
My 2 main concerns are;
If I get a clutch, i.e. KY S3 or 4 or SouthBend S4, and then my transmission implodes on itself.
I get a GMPP and it slips and dies because it can't handle the power being put down.
If the GMPP can handle all of that, I'd much rather stick with that because I had it in my LSJ which, while stock, I loved that clutch. The feel and everything was comfortable to me with the way I drive. I'd rather not spend a bunch of extra money for no reason on a pricey clutch when the GMPP will do just fine. (I work for GM at a Chevy dealer. Cheap parts.
)
02-10-2014, 06:30 PM
#87
So, if what I'm reading means what I think it does, my 09 LNF with GMS1, Injen Upper Charge Pipe and CAI, ZZP catless DP and soon to be ZFR with a tune to (an educated guess from others with more experience than I) 375-400whp/400-450wtq will be fine if I get the GMPP clutch kit? My stock clutch will eat itself from what I understand.
My 2 main concerns are;
If I get a clutch, i.e. KY S3 or 4 or SouthBend S4, and then my transmission implodes on itself.
I get a GMPP and it slips and dies because it can't handle the power being put down.
If the GMPP can handle all of that, I'd much rather stick with that because I had it in my LSJ which, while stock, I loved that clutch. The feel and everything was comfortable to me with the way I drive. I'd rather not spend a bunch of extra money for no reason on a pricey clutch when the GMPP will do just fine. (I work for GM at a Chevy dealer. Cheap parts. )
My 2 main concerns are;
If I get a clutch, i.e. KY S3 or 4 or SouthBend S4, and then my transmission implodes on itself.
I get a GMPP and it slips and dies because it can't handle the power being put down.
If the GMPP can handle all of that, I'd much rather stick with that because I had it in my LSJ which, while stock, I loved that clutch. The feel and everything was comfortable to me with the way I drive. I'd rather not spend a bunch of extra money for no reason on a pricey clutch when the GMPP will do just fine. (I work for GM at a Chevy dealer. Cheap parts.
)
02-18-2014, 05:11 PM
#95
06-27-2014, 01:35 AM
#97
buy an lsj flywheel whereever its cheapest, internchangeable with LNF DONT worry about internet wisdom on differences; clutch pipe is good idea; you will need flywheel bolts. clutch disc alignment tool is an essential tool for the job. Crate engine depot .com sell LNF clutch kits with prices at GMPP levels. good luck
07-20-2014, 11:07 PM
#99
Senior Member
I am considering doing the "gmpp" clutch kit but after looking on CED's site there are a few things that confuse me. I will start with some info on my car.
Its a 60k mile 2009 SS Sedan w/ trifecta 25 psi tune, catless downpipe, and charge pipes. The clutch holds great on the stock tune but slips a bit with the tune on. I am wanting to run e85 so I will for sure need a new clutch. In the future I most likely will be doing a turbo upgrade but not sure how long. I would like to do the ZFR but i'm not sure when they will be available again from ZZP.
Here is what is confuses me. It specifically says do not use on an LNF. Is this just legal mumbo? I see they do however sell the stock LNF clutch aswell. Is there any proof that one is better than the other?
Also, Can I resurface my stock flywheel? It says that manual trans flywheels must not be machined. I have machined, balance, and lightened many stock manual trans flywheels with out a problem in the past. Can the stock flywheel bolts be reused?
Its a 60k mile 2009 SS Sedan w/ trifecta 25 psi tune, catless downpipe, and charge pipes. The clutch holds great on the stock tune but slips a bit with the tune on. I am wanting to run e85 so I will for sure need a new clutch. In the future I most likely will be doing a turbo upgrade but not sure how long. I would like to do the ZFR but i'm not sure when they will be available again from ZZP.
Here is what is confuses me. It specifically says do not use on an LNF. Is this just legal mumbo? I see they do however sell the stock LNF clutch aswell. Is there any proof that one is better than the other?
Also, Can I resurface my stock flywheel? It says that manual trans flywheels must not be machined. I have machined, balance, and lightened many stock manual trans flywheels with out a problem in the past. Can the stock flywheel bolts be reused?
07-21-2014, 08:05 AM
#100
If you want warranty the clutch will have to be installed by a GM dealer. If it gives issues , and a dealer installed it, the dealer will look at the part numbers. Notwithstanding the sense of the part number interchangeability in fact, the correct part number referenced to the correct car VIN is required if there is to be any consideration for warranty.
Therefore, LNF part for LNF.
Stock flywheel bolts are TTY> reuse at your risk. I would not reuse old bolts.
Flywheels can be scuffed with 80 grit, or machined so long as the step is machined as well. Given the cost of machining, a new flywheel is a sensible alternative.
Therefore, LNF part for LNF.
Stock flywheel bolts are TTY> reuse at your risk. I would not reuse old bolts.
Flywheels can be scuffed with 80 grit, or machined so long as the step is machined as well. Given the cost of machining, a new flywheel is a sensible alternative.