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-   -   Engine bogging after jumping waves (https://www.offshoreonly.com/forums/general-q/298018-engine-bogging-after-jumping-waves.html)

pantera232 06-11-2013 08:46 PM

Engine bogging after jumping waves
 
My 454 runs perfect in flat water all the way up to full throttle... When I head out the inlet jumping large waves and the boat goes on a 45 degree angle, when I land the boat starts starving for fuel damn near turning off...any ideas thanks guys

vince1645 06-11-2013 09:06 PM

My fist guess would be to check the float level in the carb

jeff32 06-11-2013 09:38 PM

same comment!

mike tkach 06-11-2013 09:58 PM

the float bounces and causes a brief over rich condition,pretty common with holley carbs.

Griff 06-12-2013 01:01 AM

Had the same thing happen it my 28 Pantera with a 525SC. The high launch angle and pulling back on the throttle in the air would cause the bowls to overfill and flood the engine.

jeff32 06-12-2013 06:17 AM

so, we all know what's the problem, but is there a fix to this? lower the float?

pstorti 06-12-2013 07:35 AM


Originally Posted by jeff32 (Post 3941382)
so, we all know what's the problem, but is there a fix to this? lower the float?

fuel injection

vintage chromoly 06-12-2013 07:43 AM

Make sure you have brass floats. The plastic/nylon ones are more "bouncy", so to speak.

Ted G 06-12-2013 07:20 PM

Some of the old school racers would epoxy a small block of foam or plastic in the bowl under the float, this keeps it from bouncing so far down, some swear by it.

Mbam 06-13-2013 05:36 AM

Keep the fuel pressure right at 5 lbs, you might need a regulator. Higher pressure makes it harder for the float to keep the valve closed.

Holley also makse an offroad needle/seat

https://www.holley.com/6-513.asp


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