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07-29-2015 | 08:15 AM

#11

endeavor1

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Joined: Apr 2005

Posts: 2,998

Likes: 127

From: Lees Summit ~ LOTO 10MM

Quote:

Originally Posted by MILD THUNDER

Single carb ??

I like it. Looking at the cogs on that setup, doesn't look like its spinning too fast

07-29-2015 | 09:02 AM

#12

Rookie

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Joined: Jan 2003

Posts: 6,019

Likes: 1,521

From: Grand Rapids, MI

Quote:

Originally Posted by bcfountain

rookie,what size carbs are on the blowers and how much hp did you guys gain?

Never made it to the dyno. Mid season swap.

Quote:

Originally Posted by MILD THUNDER

Single carb ??

Apparently they started life as 525sc's. They were upgraded earlier to 250's. Guy buys boat and then the rear bearings on one of the 250's lets go and trashes the rotors. Guy eventually wants to go bigger so he went with the 8-71's. Just using what he has and taming down the 8-71's a little for the time being. Should be a good build over the winter.

07-29-2015 | 04:31 PM

#13

MILD THUNDER

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Joined: Jul 2004

Posts: 11,332

Likes: 73

From: chicago

Quote:

Originally Posted by endeavor1

I like it. Looking at the cogs on that setup, doesn't look like its spinning too fast

Great upgrade. I think he'd be underdriving it? My only concern with the single carb on the 871 would be fuel distribution issues. I think going with twin 750s on it would be the way to go.

They sure look alot cooler than stock 525sc's now

07-29-2015 | 08:41 PM

#14

endeavor1

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Joined: Apr 2005

Posts: 2,998

Likes: 127

From: Lees Summit ~ LOTO 10MM

Quote:

Originally Posted by MILD THUNDER

I know some 500s that would love those 871s on top. Lol

07-30-2015 | 11:24 AM

#15

JRider

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Joined: Jul 2007

Posts: 2,640

Likes: 14

From: MI

Quote:

Originally Posted by Old Navy

I wanted to buy a single piece of their HP575sci 256 blower to 8-71 conversion kit and they would not sell it to me. They said I had to buy the whole kit. FWIW

What are you looking for? Lower pulley adapter? I think I sourced mine through CP or Teague

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