GMPP clutch vs stock LNF clutch. What are the differences?
07-23-2012, 01:03 AM
#1
GMPP clutch vs stock LNF clutch. What are the differences?
alright, a lot of people on here, including myself used to think the gmpp clutch upgrade kit was actually a stock LNF clutch kit that can be used on an LSJ. This is partially correct, the TOB and pressure plate are indeed the same one used in the LNF, however, the disk is not. note the differences in the pics aside from the color of the springs in the disk.
LNF disk:
gmpp:
the disk in the gmpp is one out of a SAAB. idk which one to be exact, but im sure someone will chime in later.
the lnf and gmpp disks have different linings and impact springs. this doesnt mean that one is stronger than the other, as i really dont know 100% which one is, however, they should be close at least.
if anyone knows more about the technical details, feel free to chime in as id like to know myself. lol.
LNF disk:
gmpp:
the disk in the gmpp is one out of a SAAB. idk which one to be exact, but im sure someone will chime in later.
the lnf and gmpp disks have different linings and impact springs. this doesnt mean that one is stronger than the other, as i really dont know 100% which one is, however, they should be close at least.
if anyone knows more about the technical details, feel free to chime in as id like to know myself. lol.
07-23-2012, 01:36 AM
#2
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Aside from some minor differences, they look identical to me. At least the surface material does. A new one will look a little different from an old one due to the fact that its new but I just don't SEE the difference.
Are the materials the same? They LOOK the same (again, I don't have these in front of me, going off pictures). I still think you're nuts for putting one of these in your BNR powered car. :P
Powell where you at!?
Are the materials the same? They LOOK the same (again, I don't have these in front of me, going off pictures). I still think you're nuts for putting one of these in your BNR powered car. :P
Powell where you at!?
07-23-2012, 01:45 AM
#3
look at the part in the middle on both clutch disks, thats where the biggest difference is. you can see 4 metal "pins" i believe in the lnf clutch disk, but theres 8 in the gmpp. i have no idea what they are 
but im sure mr. powell will if he comes in. also, the color of the disk material is different. you have to see them side by side to tell tho.
the only reason i got the gmpp was because theres a few guys with more power than me running it. also, my stock LNF clutch wasnt slipping until my stock trans blew and i got mtf on the clutch disk
so far the gmpp held 24psi in 3rd. ill do a 29psi pull this weekend after some more driving around. i dont expect it to slip since my stock one didnt.
but im sure mr. powell will if he comes in. also, the color of the disk material is different. you have to see them side by side to tell tho. the only reason i got the gmpp was because theres a few guys with more power than me running it. also, my stock LNF clutch wasnt slipping until my stock trans blew and i got mtf on the clutch disk
so far the gmpp held 24psi in 3rd. ill do a 29psi pull this weekend after some more driving around. i dont expect it to slip since my stock one didnt.
09-26-2012, 07:08 PM
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sorry to bring the post from the dead... lol ... but im putting a lnf trans in my 05 ss/sc.... so the gmpp lsj clutch upgrade kit will work fine with the lnf tranny? it will all work together i mean... fitting and working and all that? beaces on crate engine depot they have different part numbers for the TOB...
09-26-2012, 07:22 PM
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09-26-2012, 07:27 PM
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oh, I thought you ment i'd need a different one or something.. yeah... thats good man... mine isn't hurt... i didnt drive the car after it happened anyway... heard a pop and next thing i knew there was mtf all under the car... kinda interested to get it apart to see what happened. but it had some noises in it for a few months.. lol i knew it was gonna happen... just didnt know when.. looked at the trans from under the car on a lift... its comming out of in where the clutch is somewhere... broke the case im guessing so far
09-26-2012, 07:52 PM
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Thanks !! ... I was just kind of worried about the LNF trans/ LSJ clutch kit and TOB all working together... it sounds less stressful now haha
02-10-2013, 11:46 AM
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I'm getting this strong feeling that the GMPP and LNF clutches are the same in holding capacity. I don't know why I don't really have any evidence of this yet, but like someone said the GMPP clutch seems to break the laws of logic. Because of this, I still have this high level of skepticism when it comes to the GMPP.
Dart SI is using it on BNR and Blazin is using it with a BW S256 (S252?) though he is using an actual LSJ if that makes a diff.
Both those turbos perform better than my K04+ and they aren't at altitude like I am. So their clutches have more work to do than mine would.
It seems like it should be a no brainer but I still have this feeling of "how can I be sure"
I am seriously just considering the ZZP stage 3 since its supposed to be a better clutch than LNFs OEM clutch by quite a bit.
My feelings of unease is definitely fueled by ignorance but I haven't gotten a solid answer as to why the GMPP though incredibly similar to the LNF clutch is better than the OEM LNF clutch. Or as to why its different. I see the slight differences as mentioned earlier but what does that mean? Its like a Redline and SS/SC they are similar and different. Does that mean one is better? If so why? I need the facts I guess to form an opinion.
Dart SI is using it on BNR and Blazin is using it with a BW S256 (S252?) though he is using an actual LSJ if that makes a diff.
Both those turbos perform better than my K04+ and they aren't at altitude like I am. So their clutches have more work to do than mine would.
It seems like it should be a no brainer but I still have this feeling of "how can I be sure"
I am seriously just considering the ZZP stage 3 since its supposed to be a better clutch than LNFs OEM clutch by quite a bit.
My feelings of unease is definitely fueled by ignorance but I haven't gotten a solid answer as to why the GMPP though incredibly similar to the LNF clutch is better than the OEM LNF clutch. Or as to why its different. I see the slight differences as mentioned earlier but what does that mean? Its like a Redline and SS/SC they are similar and different. Does that mean one is better? If so why? I need the facts I guess to form an opinion.
02-10-2013, 12:25 PM
#21
I mean if it works for so many people why go another route that cost more, has a harder engagement than the gmpp, a lot harder pedal pressure. I mean if it works and is shown again and again( I use the gmpp) why not use it. Seems stupid to go against such great results. IMO
02-11-2013, 04:20 PM
#23
Guys listen. Its the same clutch pressure plate. The disc is different but not so you can notice. Loki has had this clutch in his car with a trifecta dual tune, tracked it for three years now.
Buy a GMPP form CED: be happy /pay less/drive right!
I have said it before:
I have seen a guy destroy a 5000 dollar carbon triple disc clutche in an LS7 .
I have seen an Exedy hyper single destroyed on the dyno
I have seen all sorts of clutches destroyed at the 1320 start line.
Its how you drive it.
Area47 got like four years at 340 whp on a STOCK wimpy LSJ clutch.
/end rant.
Buy a GMPP form CED: be happy /pay less/drive right!
I have said it before:
I have seen a guy destroy a 5000 dollar carbon triple disc clutche in an LS7 .
I have seen an Exedy hyper single destroyed on the dyno
I have seen all sorts of clutches destroyed at the 1320 start line.
Its how you drive it.
Area47 got like four years at 340 whp on a STOCK wimpy LSJ clutch.
/end rant.
