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Alcohol Carb Jetting?
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DRR Trophy
Picture of Dragn
posted
I have a 750 alcohol carb on 406 SBC need a idea where to start with jetting running at 4500 to 6500 DA. Thanks


Bob Seamons
 
Posts: 207 | Location: In the Garage | Registered: December 31, 2001Reply With QuoteReport This Post
DRR Sportsman
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I'd guess #155-165 area with no PV's.
But all depends on carb and engine.
I have had success with an out of the box HP alky carb with #150 jets. 350 SBC, 5000 flash and shift at 6000 and trap 6200. It's a ZZ4 engine.

I run a belt driven pump with a front mounted cell.

Nothing against others using electric pumps with the cell in the rear because they win as well, but I like the belt drive that varies the psi according to RPM of the engine.

Take it for what's worth, it's Free.


Edit: I misread your post. I don't think I've ever raced in that high of DA repeatedly.
I'm usually 500' to 2500'.



Cool
 
Posts: 621 | Location: Atco, NJ | Registered: March 14, 2002Reply With QuoteReport This Post
DRR Pro
Picture of CURTIS REED
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I would start on the high side of M120's suggestion but it should be a decent starting point.



____________________________
2017 and 2018 Osage Casinos Tulsa Raceway Park No-Box Champion

2018 Div4 Goodguys Hammer award winner
 
Posts: 2959 | Location: KIEFER, OK. | Registered: August 17, 2007Reply With QuoteReport This Post
DRR Pro
Picture of Eman
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Don't see DA that high usually but with 355's I'm at 146 and a friend is at 160. Pretty big difference in our HP and RPM's.
 
Posts: 1471 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
DRR Trophy
Picture of NC3x58
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I'm at 148's APD 750 billet, 376 LS motor around 530hp, 6.40's at 2800lbs in 2000-3000 DA, 1200' track elevation.


Nick Craig

1971 Camaro Split Bumper
376ci LS3
 
Posts: 410 | Location: Ohio | Registered: December 28, 2013Reply With QuoteReport This Post
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