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#1 |
Registered Member
Join Date: Apr 1999
Location: belleville IL.
Posts: 60
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#2 |
Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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![]() Was the rotating assembly balanced at assembly, including with the balancer and flexplate? Was your converter balanced? Has the balancer slipped? Just a few things to check, but it definitely sounds like a balancing issue. '87 truck...might this have been a 28 in-oz crank?
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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#3 |
Registered Member
Join Date: Apr 1999
Location: belleville IL.
Posts: 60
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![]() I thought all post 87 cranks were 50 oz balanced. The rotating assembly was not balanced together. I bought the short block from a builder in Indy, then finished it off with my parts. The only thing I did not take into consideration was the converter. It came with the trany. Is it possible to have the converter balanced seperately, I know this probably would not be ideal for your application but for just a hobby car for shows and occasional strip time would this be sufficient
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#4 |
Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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![]() Check your PM. Since its an Indy Performance shortblock, I'd bet the problem is in the rotating assembly itself.
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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#5 |
Domestic Rice really sucks!
Join Date: Apr 2002
Location: KY
Posts: 973
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![]() FWIW, 87 trucks did have the 50 oz setup.
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#6 |
Rebel Fleet Commander
Join Date: Oct 2001
Location: Huber Heights, OH
Posts: 1,003
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![]() I was having the same issue. I am not completely sure it is fixed ( 2 feet of snow will do that) but I put new Romac balancer on mine and I can tell a big difference right away. Plus, my old one was really fucked up. I would check into this route. The Romac can be had for $200 on ebay. That is where I got mine.
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1993 Mustang GT, PTK w/ T-64 - My Cardomain Webpage 11.25@123.5 on only 8 psi. 10.84@121 on only 1 headgasket ![]() ![]() ![]() "The Truth is, Your the Weak, and I am the Tyranny of Evil Men!" ![]() |
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