HOW MUCH HP CAN QUAD RANGE HANDLE? July 10, 2011 04:24AM
THE ILLIANA PULLERS HAVE A FARM STOCK CLASS I WOULD LIKE TO TRY TO GET IN TO WITH A 4430 QUAD RANGE . BUT AM CONCERN IF QUAD WILL HOLD UP. CLASS SEEMS TO BE A INTERNATIONAL DOMINATED CLASS THAT I THINK SUPPOSE TO BE BASICLY STOCK TRACTORS WITH A FEW TWEAKS HERE AND THERE BUT FEEL WITH SOME HELP I CAN STILL HAVE FUN .CAN ANY ONE HELP?
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 10, 2011 07:02AM
A beefed up 4430 quad probably gives up around a 1000hp.
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 10, 2011 08:23AM
[www.youtube.com]

seems to hold a bit of power!
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 10, 2011 09:31AM
HOW DO YOU "BEEF UP A QUAD RANGE" ?
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 11, 2011 03:56AM
You put more clutch disks in the 2 spd.
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 12, 2011 01:28PM
Stock quad range has been holdn up for four years at 450 hp. The clutch is what wont hold being stock for very long.
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 12, 2011 04:50PM
I would agree the clutch will give long before the quadrange.
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 12, 2011 05:31PM
a five or six disc clutch modifications seems to handle about 150hp per disc ( 4 primary disk, 2 pto clutch disk), in applications I'm familiar with. Those mods do take some machining modifications for the stock divider plates. I've seen plans for an 8 disc unit, with about a .750 increase in total unit depth for the clutch, but that clutch could well overpower an upgraded two speed unit, which would sort of make a clutch beyond six disc impractical, if done solely to maintain the shift on the go function.
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Re: HOW MUCH HP CAN QUAD RANGE HANDLE? July 13, 2011 03:28PM
Once saw a "beefed up" two speed almost cut a tractor in half. Parts flew 75 yards. Tractor had 600hp though. Miraculously nobody got hurt. Anything over 450hp, get rid of it for safety's sake. Just my humble opinion.
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