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rpm?

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Old 02-05-2008, 10:19 PM
  #1  
90mustangkid
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Default rpm?
around what rmp would i be able to rev up to with a stock block, stock rods, and a stock crank with around 315 hp
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Old 02-05-2008, 10:23 PM
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mjr46
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Default RE: rpm?
I wouldn't spin a stock rotating assembley to much above or past 6000 to 6500 for any extended period of time......I spun mine up to 6800 in 1st and 2nd but then again I had forged rods
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Old 02-07-2008, 02:57 PM
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WLingle92lx
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Default RE: rpm?
I shift my 306 at 7200, all with the stock block, crank and rods. Everthing was gone over, heat treated and balanced to hold it together a little better than stock.
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Old 02-07-2008, 05:23 PM
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silentvoice19
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Default RE: rpm?
i had a mulligan once or twice because im not used to 373 gears and bounced it off 7 but i will never do that again.Keep it safe man remember rebuild from ground zero sucks bad.
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Old 02-07-2008, 05:53 PM
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my77stang
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Default RE: rpm?
strong rod bolts, a balance job, and pistons that dont weigh a ton will let you wind it up pretty high
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Old 02-07-2008, 06:51 PM
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5spd GT
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Default RE: rpm?
Accurate balancing, ARP rod bolts, and going light as possible is always a positive.

A strong and lightweight and valvetrain is needed as well.
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Old 02-07-2008, 07:58 PM
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ZachW04Stang
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Default RE: rpm?
My buddy spins his car to 7200rpm with stock bottom end. He makes 360hp n/a on stock bottom end. The car has held up for 2 seasons so far.
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Old 02-07-2008, 09:57 PM
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Tberg725
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Default RE: rpm?
Yeah but sometimes you're just lucky the next time it could go boom or it could last anther season you never know.
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Old 02-07-2008, 10:00 PM
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mjr46
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^^^^^^that's always the risk you run...you wanna play you gotta pay
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Old 02-07-2008, 10:17 PM
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5spd GT
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Default RE: rpm?
I would decide which one you are going to do and how are you going to drive it.

Are you going to drive it all four seasons or that one particular "season"?
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