4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

How much RWHP is the stock crank good for?

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Old 11-02-2006, 01:10 AM
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nanaki
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Default How much RWHP is the stock crank good for?

what's the breaking point and the safe point RWHP for the stock crankshaft on a 99-04GT?
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Old 11-02-2006, 01:22 AM
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czwalga00gt
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Default RE: How much RWHP is the stock crank good for?

Not completely positive, but i thought it was like 480-500rwhp. Anything more is pushing it.
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Old 11-02-2006, 01:26 AM
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nanaki
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Default RE: How much RWHP is the stock crank good for?

500RWHP is the safe point on it or is that when you're a ticking time bomb?
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Old 11-02-2006, 01:27 AM
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built54
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Default RE: How much RWHP is the stock crank good for?

Ive seen way higher... 800hp with just knife edging the stock crank, but that doesnt add strength, so who knows
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Old 11-02-2006, 01:32 AM
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ponysnake99
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Default RE: How much RWHP is the stock crank good for?

yeah, i wouldnt give it more than 600...w/e the offical rating is its not much...nor is a substantial amount (500+) reliable...might want to go forged

btw...nice...FFVII see we got another fan
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Old 11-02-2006, 01:41 AM
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nanaki
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Default RE: How much RWHP is the stock crank good for?

hrmm.. my goal is to get right around that 500RWHP mark. if i got that, i'd be happy. i'm also trying to find some blower cams for it but not having much luck. summit doesn't seem to have any.

the blocks i'm looking at have the same setup except one has a forged crank for about $600 more.

i may be getting all this if i don't sell my car in the next couple weeks.
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Old 11-02-2006, 02:22 AM
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NXgt
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Default RE: How much RWHP is the stock crank good for?

The rods suck. They looked very britle. I was told the crank would hold around 450-480.
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Old 11-02-2006, 03:11 AM
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GT_Bob
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Default RE: How much RWHP is the stock crank good for?


ORIGINAL: nanaki

hrmm.. my goal is to get right around that 500RWHP mark. if i got that, i'd be happy. i'm also trying to find some blower cams for it but not having much luck. summit doesn't seem to have any.

the blocks i'm looking at have the same setup except one has a forged crank for about $600 more.

i may be getting all this if i don't sell my car in the next couple weeks.

Why chance it? Go forged or worry about it every time you hit the throttle.
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Old 11-02-2006, 10:40 AM
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02 JRClassic
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Default RE: How much RWHP is the stock crank good for?

If we're talking a bone stock 2v engine, 400rwhp is as high as I would go. The stock rods in the gt motors cannot sustain that much horsepower. If you have any hopes of achieving 500rwhp, I'd seriously consider forging the internals.

http://www.seanhylandmotorsport.com/

They offer great prices for what is needed to reach 500rwhp
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Old 11-02-2006, 11:13 AM
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stang2000
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Default RE: How much RWHP is the stock crank good for?

If you're looking for blower cams, go to www.vtengines.com That's where I got my new forged motor and blower cams. They have 3 stages of blower cams.
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