3-4 clutches....what brands you guys using?
08-08-2010, 08:20 PM
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3-4 clutches....what brands you guys using? I need to replace my 3-4 clutches. What kind are you guys using?
I was looking at the alto power pack. Anyone have any good experiences with them?
I was looking at the alto power pack. Anyone have any good experiences with them?
08-08-2010, 10:58 PM
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Alto clutch packs are the way to go.They are performance frictions. Your strength and smoothness of shifting will come from clearance in each clutch pack. Rule of thumb is .010 per friction. To tight and your clutch wont release to loose and it slips and will burn up fast. Built right you will be happy with alto clutches
08-08-2010, 11:56 PM
#4
Alto clutch packs are the way to go.They are performance frictions. Your strength and smoothness of shifting will come from clearance in each clutch pack. Rule of thumb is .010 per friction. To tight and your clutch wont release to loose and it slips and will burn up fast. Built right you will be happy with alto clutches
My experience has been that the Alto Red friction is slightly more heat resistant than a Borg Warner tan friction, seems to grab good, but aren't really worth the cost in most applications. We've gotten away from using them at all.
Much better options out there for the 4L60E, the late model stock ones work well
08-09-2010, 01:35 AM
#6
I stopped using the Alto Reds back in 1995, because they were not holding up to any kind of horsepower. I discovered the Borg Warner Hi-Energy's were doing well in the factory units, but still more capacity was needed. I started making the 8 BW Hi-E clutch setup for the 3-4 pack and from that point, the 3-4 clutch problems were just about nonexistent. Chris at CK, Vince at FLT, Jakeshoe and many others use the BW Hi-E's, in various clutch count 3-4 applications, with much success. Raybestos has their Z-Pak with 14 single sided clutches, I added 2 more clutches for a 16 single sided clutch setup. This "modified" Raybestos Z-Pak seems to be doing well. I have over 50 of these modified versions out there without complaint.
Last edited by PBA; 08-09-2010 at 05:44 AM.
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08-09-2010, 06:20 AM
#8
I don't know of any really reputable 4L60E builder who are using Alto frictions in the 3-4 pack.
My experience has been that the Alto Red friction is slightly more heat resistant than a Borg Warner tan friction, seems to grab good, but aren't really worth the cost in most applications. We've gotten away from using them at all.
Much better options out there for the 4L60E, the late model stock ones work well
My experience has been that the Alto Red friction is slightly more heat resistant than a Borg Warner tan friction, seems to grab good, but aren't really worth the cost in most applications. We've gotten away from using them at all.
Much better options out there for the 4L60E, the late model stock ones work well
08-09-2010, 07:31 AM
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They make the BW high engerys in two thicknesses. .062 and .080.
You can mix up the combination with thin kolene steels and fit 8. using the standard apply and pressure plate and factory load springs, 9 if you change the apply and pressure plate, but the load springs no longer will fit properly.
Higher rpm engines need stronger springs installed in the clutch drum (supplied in the transgo kit)
There are some advantages to thicker friction vs thicker steels, but their is no subisuite for increased friction area. Hands down, the more friction you have, the less each clutch has to hold.
I guess I would need a engineer to explain to me how the Z pack works properly.
One of the apply/pressure plates are not flat at all and has nearly "0" apply area to hold.
Every unit Ive installed one on (only because the customer supplied it) was toast in under a year.
Alto red friction are just paper, and they work fine, but the HE friction from BW seem to hold up much better.
No clutch manufacturer matches BW quality.
You can mix up the combination with thin kolene steels and fit 8. using the standard apply and pressure plate and factory load springs, 9 if you change the apply and pressure plate, but the load springs no longer will fit properly.
Higher rpm engines need stronger springs installed in the clutch drum (supplied in the transgo kit)
There are some advantages to thicker friction vs thicker steels, but their is no subisuite for increased friction area. Hands down, the more friction you have, the less each clutch has to hold.
I guess I would need a engineer to explain to me how the Z pack works properly.
One of the apply/pressure plates are not flat at all and has nearly "0" apply area to hold.
Every unit Ive installed one on (only because the customer supplied it) was toast in under a year.
Alto red friction are just paper, and they work fine, but the HE friction from BW seem to hold up much better.
No clutch manufacturer matches BW quality.
08-15-2010, 10:43 AM
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08-20-2010, 07:43 AM
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I modified the Z-Pak awhile back by adding "two" clutches and getting rid of the "brown" cushion clutch, now for a total of 16 clutches instead of stock 14. Since doing this, I have over 50 of these clutch packs out there with no complaints so far. I have a write up on this at http://700r4l60e.com/forum/viewtopic.php?t=328
Still I like the Borg Warner Hi-Energy clutches the best. They have "proven" themselves many times over that they will take the horsepower when setup properly.
Still I like the Borg Warner Hi-Energy clutches the best. They have "proven" themselves many times over that they will take the horsepower when setup properly.
