4.5" Scat cast crank, how much HP are you guys running through them?

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4.5" Scat cast crank, how much HP are you guys running through them?

Post  Greg_P on August 27th 2009, 11:07 am

I'm a little worried about the one in my 545. Just wondering how much these buggers have been taking in the real world.

Greg
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  dfree383 on August 27th 2009, 11:11 am

Tough to say, some last, some break....
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  Greg_P on August 27th 2009, 11:19 am

Well, I had the crank magnafluxed two seasons ago and it checked out fine..... but that was before the 200 shot.

I'm debating whether or not I should step up to a forged crank, but $$$ is kinda tightm you know how it is.

I'm probably gonna have the crank magnafluxed again this winter just to check, but I was really wanting to see how hard guys have been pushing these cranks out there in real life.

This engine is probably around 850HP on the spray.

Greg
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  dfree383 on August 27th 2009, 12:18 pm

I'd say your at or a little above the realistic limit IMO, call Adney and get a forged one he can even balance it to you bob weight so theirs no hastle.
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  Greg_P on August 27th 2009, 12:20 pm

Adney's definitely the man I would go to for a crank. He's the one who set me up with what I have now, so I already know his service and price can't be beat.

Greg
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  D. Sea on August 27th 2009, 12:21 pm

dfree383 wrote:I'd say your at or a little above the realistic limit IMO, call Adney and get a forged one he can even balance it to you bob weight so theirs no hastle.

Ditto What a Face
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  IDT-572 on August 27th 2009, 4:41 pm

If it was an Eagle you would already have the answer to your question affraid Laughing
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  Treeyasoon on August 27th 2009, 4:52 pm

I had one in my first 557...that motor made 821 hp...it lasted exactly 260 passes...mostly 1/8 mile with some 1/4. The motor was never turned past 6800.
This was a N/A deal, no spray ever, shifted at 6200 bracket motor...FWIW.
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  studly on August 27th 2009, 7:25 pm

i have a 4.3 scat cast in one of ours its a bracket motor over 300 passes so far but No you never know when it will go we have a new scat billet in the big motor.
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Re: 4.5" Scat cast crank, how much HP are you guys running through them?

Post  busta on March 14th 2013, 8:52 am

I'm using a Scat 4.3" cast crank in my 532 street engine and it makes 650 hp/675 ft lb. I have the limiter set at 7200rpm but only spin it to around 6500rpm. I have approximately 4000 street miles and a handful of passes on it. Everything OK so far.

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