Installed the GDP 392 kit...HAPPY!!
#1
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Installed the GDP 392 kit...HAPPY!!
Well after a lot more work than I thought, the system is on, and is awesome. Mostly the Pushlok fittings were a bear. It was pretty cold anyway, I had to really hit them with a heat gun to get the hose on.
Before: I was at 13psi idle, 10 cruising and didn't use 5x5 on the comp because it dropped close to 5-7psi.
After: 21psi idle and 16psi WOT with the Comp on 5x5.
What a difference. I swear I can feel it. One more happy customer.
Before: I was at 13psi idle, 10 cruising and didn't use 5x5 on the comp because it dropped close to 5-7psi.
After: 21psi idle and 16psi WOT with the Comp on 5x5.
What a difference. I swear I can feel it. One more happy customer.
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Well, so much for being able to "feel" the difference, I slipped the clutch. Cruising mid third gear, gave it a good push, accels like mad, then RPM shot up but truck slowed, I let off some and it caught again. How much HP/TQ are needed to slip the stock clutch? I was hoping I wasn't there yet. I see a new clutch in my future...
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I will probably go with the Valair 550HP rated one, what is the difference in the 12.25 and 13? Obviously the size, but rated at the same capacity, would there be a need for the 13 and conversion kit?
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The bigger clutch will hold better, last longer, and damp crankshaft torsional harmonics better.
The smaller unit will shift better and cost less.
I only have experience with South Bend--- can't help you with valair.
jh
The smaller unit will shift better and cost less.
I only have experience with South Bend--- can't help you with valair.
jh
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Well, so much for being able to "feel" the difference, I slipped the clutch. Cruising mid third gear, gave it a good push, accels like mad, then RPM shot up but truck slowed, I let off some and it caught again. How much HP/TQ are needed to slip the stock clutch? I was hoping I wasn't there yet. I see a new clutch in my future...
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Yes, but then you will inherit the problems of a NV5600. The 5th gear nut can be fixed one of two different methods. One is to replace it with an aftermarket version before it takes a dump. The other option in to rebuild the 5-speed with an aftermarket output shaft and better designed nut. Do a search and read up before yours blows off.
#11
Yes, but then you will inherit the problems of a NV5600. The 5th gear nut can be fixed one of two different methods. One is to replace it with an aftermarket version before it takes a dump. The other option in to rebuild the 5-speed with an aftermarket output shaft and better designed nut. Do a search and read up before yours blows off.
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