SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: Sicaz66 on April 11, 2013, 10:16:19 AM

Title: Stock 454,which carb?
Post by: Sicaz66 on April 11, 2013, 10:16:19 AM: Have a mostly stock 454 in 21' open bow. Have 2 carbs here to run. AED 650 dp, or vacuum secondary 750. Motor has dual plane intake,049 heads,elect ign, and mild cam,with logs.
Title: Re: Stock 454,which carb?
Post by: beerjet on April 12, 2013, 06:16:07 AM: 750

-beerjet-
Title: Re: Stock 454,which carb?
Post by: GT Jets on April 12, 2013, 07:20:17 AM: Quote from: beerjet on April 12, 2013, 06:16:07 AM
750

-beerjet-

X2
Title: Re: Stock 454,which carb?
Post by: Horizonjet on April 12, 2013, 08:20:15 AM: Quote from: GT Jets on April 12, 2013, 07:20:17 AM
X2
X3. 750

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Title: Re: Stock 454,which carb?
Post by: Sicaz66 on April 23, 2013, 11:48:41 PM: Come to find out my aed 650 was actually a 750 ;D
So now my question is 750 dp or 750 vac??
Title: Re: Stock 454,which carb?
Post by: GT Jets on April 24, 2013, 08:32:37 PM: Quote from: Sicaz66 on April 23, 2013, 11:48:41 PM
Come to find out my aed 650 was actually a 750 ;D
So now my question is 750 dp or 750 vac??

Double pumper... All things being equal the engine will not make enough vacuum to pull the butterflies WFO on the vac/sec in most cases.

GT
Title: Re: Stock 454,which carb?
Post by: mash on it on April 24, 2013, 09:01:48 PM: GT-
Doesn't the (vacuum) secondaries open by 'Lack of vacuum'?

Dan'l
Title: Re: Stock 454,which carb?
Post by: GT Jets on April 24, 2013, 09:33:10 PM: Quote from: mash on it on April 24, 2013, 09:01:48 PM
GT-
Doesn't the (vacuum) secondaries open by 'Lack of vacuum'?

Dan'l

Think about what you just said....