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Big Block Talk! Everything about swapping a big block engine into your cart! |
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05-12-2020, 01:03 PM | #1 |
Not Yet Wild
Join Date: Apr 2020
Posts: 8
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93 Club Car with 420 Predator carb issues
I have a 93 Club Car DS that we recently put a predator 420 in. A buddy did most of the work. The thing runs good at full speed. It is a little erratic at cruising speeds and if i turn sharp and hit the gas it usually blubbers and dies. Almost like its flooding out. It has the stock carb. He put a fuel pump on it that he said was rated for 5-13HP motors. I'm worried that the pump is too big. I have debated trying to get a smaller fuel pump, putting a fuel pressure regulator in, or even getting a Mikuni or something for it. Any suggestions?
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05-12-2020, 02:08 PM | #2 |
Gone Wild
Join Date: Aug 2010
Location: Central Florida
Posts: 1,506
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Re: 93 Club Car with 420 Predator carb issues
Some of the guys here put a t in the supply line from pump to motor and let the excess pressure drain back to the fuel tank.
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05-12-2020, 02:09 PM | #3 |
Gone Wild
Join Date: Jul 2017
Location: East Central Missouri
Posts: 1,955
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Re: 93 Club Car with 420 Predator carb issues
Install a T in the line from the pump to carb. Route the extra line back to the tank. That would eliminate over feed to the carb by allowing extra fuel/pressure to release back to the tank.
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05-12-2020, 02:14 PM | #4 |
Not Yet Wild
Join Date: Apr 2020
Posts: 8
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Re: 93 Club Car with 420 Predator carb issues
I wouldn't of thought it was that easy. I figured i would of had to run a regulator with a return line. Thanks for the help. If i were to put an aftermarket carb on it what would you suggest?
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05-12-2020, 04:33 PM | #5 |
Gone Wild
Join Date: Jul 2017
Location: East Central Missouri
Posts: 1,955
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Re: 93 Club Car with 420 Predator carb issues
I have an electric fuel pump, low pressure, with a return line for my EZGO with VC625 engine. To "regulate" flow with the electric pump I installed plastic fuel shutoff valves in the return line and the line to the carb with a clear fuel filter after each. That way I can monitor the fuel flow through both valves and "tune" the pressure to the carb.
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05-12-2020, 05:51 PM | #6 |
Gone Wild
Join Date: Jun 2011
Location: Kingston Springs Tn.
Posts: 874
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Re: 93 Club Car with 420 Predator carb issues
My 420 duromax was flooding when running pump off the intake barb switched to valve cover eliminated the problem
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05-12-2020, 10:45 PM | #7 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,421
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Re: 93 Club Car with 420 Predator carb issues
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05-13-2020, 07:49 AM | #8 |
Not Yet Wild
Join Date: Apr 2020
Posts: 8
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Re: 93 Club Car with 420 Predator carb issues
Thanks. i will mess around with it and see what i can figure out.
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