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Time for a rebuild......

oilfield_trash212010-08-12 19:00:56 +0000 #1
The ol brute has laid down on me finally. She started smoking progressively worse and finally lost a cylinder. Now my problem is after pricing out parts, I can do a 750 HC at 12.5-1 or a 785cc at 11-1 for the same price. Which would be better? I have larger injectors to install after the rebuild so fueling WONT be a problem. I havent heard of a 785 kit until now, so if anyone has results with it that they would like to share I would greatly appreciate it.
650Brute2010-08-12 19:05:00 +0000 #2
An 09', Down...... What happened to it? I saw you said the smoking got worse. Just wondered.
pdg2010-08-12 19:28:29 +0000 #3
Running larger tires I would definitely go 785
pdg2010-08-12 19:49:21 +0000 #4
I got my 785 kit with the cwr mach 3 cams from Cycle Works Racing. I thought I had power before with a stock 750 but it was nothing compared to the hairy scary beast it is now!
oilfield_trash212010-08-12 20:24:28 +0000 #5
All I can figure is some nasty stuff got in the engine through a badly leaking front seal, then it got ran low on oil because of the seal. Front cylinder got ate up, plug was getting oil fouled. My fan relay had bad corrosion on the back side of the connector even after I greased the connection. Long story short, hi temp light nor the fan ever came on. When I found the wire that had corroded in half it was too late, engine was gone. My 750 turned into a 375 and barely made it to the truck on its own power. So when I get in from offshore I'm pulling the engine and doing a rebuild. I was checking into this 785 kit and I think I'm gonna go with it and the cams you suggested. Thanks for the reply.
pdg2010-08-12 21:13:59 +0000 #6
You can't go wrong with cwr mach 3 cams. When I pin it my 785 just leaps and pulls hard and strong and doesn't stop pulling until I let off on the throttle! Steady power right through. I do some mudding and long fast trail riding and I find it to be a great set up and doesnt run hot.
Brute_dillon2010-08-12 20:39:12 +0000 #7
mine just started smoking after i flooded it a few days ago any idea why this could be
DjScrimm2010-08-12 22:03:09 +0000 #8
No doubt 785 over stock. About the perfect size, since your stock is gone, might as well go up a bit, and save room for a future 840...? Who wants to stay stock!? The 785 will be like a juiced up 750, no problems at all with it that i could imagine, not to big by any means, hell the 840 isn't even to big. With the bigger injectors, right cams, and an adequate tune the beast will truly be unleashed. Im not sure what your looking at, but may as well go ahead and look over AMR's line up while your at it, top notch stuff and Glenn is certainly a good man to consult with.

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