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How much boost
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Ronnie View Drop Down
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Joined: 23 Mar 2014
Location: New Brighton
Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Topic: How much boost
    Posted: 04 Aug 2016 at 6:28am
Will a stock 301 out of a 8010 take.
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AaronSEIA View Drop Down
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Joined: 11 Sep 2009
Location: Mt Pleasant, IA
Points: 2573 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AaronSEIA Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 7:45am
Dont know about stock, but 8 years ago the McKimm 180 twin turboed "Power Maxx" was leaving the line under 80 lbs of pressure.
AaronSEIA
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bsallis180 View Drop Down
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Joined: 29 Jul 2013
Location: Pennsylvania
Points: 209 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bsallis180 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 8:21am
it will take as much as it can till it breaks...  maybe 30psi   right way put fire rings in the sleeves and forget about it
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Ronnie View Drop Down
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Joined: 23 Mar 2014
Location: New Brighton
Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 11:06am
I'm making 40 pounds.
I think I will open the waste gate and keep her around 25
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200 allis View Drop Down
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Joined: 11 Mar 2014
Location: new jersey
Points: 203 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 200 allis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 12:12pm
I have a 200 makes 60 psi boost and isn't fire ringed and a friend of mine is running a 190 with 80 pounds with out fire rings
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Ronnie View Drop Down
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Joined: 23 Mar 2014
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Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 1:18pm
200 allis are u runing factory head bolts and torque speck
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200 allis View Drop Down
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Joined: 11 Mar 2014
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Points: 203 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 200 allis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 4:10pm
Stock head bolts over torqued a Lil. Left rocker arm assembly off and torque with all short bolts. Then put rocker arm assembly back on and torque it down. Plugged block heater in over night and retorqued.
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O.P.S. Heads View Drop Down
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Joined: 02 Jan 2013
Location: Iowa
Points: 579 		Post Options Post Options   Thanks (0) Thanks(0)   Quote O.P.S. Heads Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2016 at 6:50pm
The boost is a factor but not the only factor. How much power you develop is a much bigger deal. You can make 200 HP with 60 lbs. of boost or you can make 800 HP with 50 lbs. All depends on the setup. I would be certain that your connecting rods are hardened first. the softer OEM rods will bend before the head gasket blows if they are not heat treated.

I think a better way to describe performance is to give the weight of the tractor and in what gear you can spin it out - finish the run in. That is a more accurate way to describe how good the engine is and the stress that is applied to it.

Edited by O.P.S. Heads - 04 Aug 2016 at 8:45pm
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Ronnie View Drop Down
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Joined: 23 Mar 2014
Location: New Brighton
Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 7:24am
200 allis do u have hardens rods in ur engine and what weight class do u run.
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200 allis View Drop Down
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Joined: 11 Mar 2014
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Points: 203 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 200 allis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 9:34am
My rods are hardened but the 7000 series rods were harder then 3# series. I have been running 7500 and 8500
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22115 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 11:53am
On the 426 small pin rods, if they said JAPAN on them, there were better than newer generation rods.
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Ronnie View Drop Down
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Joined: 23 Mar 2014
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Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 12:49pm
I think I will just back my boost down some so i dont break any thing.
So what would it cost to get rods hardend
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200 allis View Drop Down
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Joined: 11 Mar 2014
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Points: 203 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 200 allis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 4:44pm
Max Simpson did my rods but don't think he is doing it any more. What timing u running makes big difference.
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Ronnie View Drop Down
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Joined: 23 Mar 2014
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Points: 557 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ronnie Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2016 at 4:48pm
Just under stock timing for this moment
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