4 barrel carb on rotary 13b (Holley?), Nope....its a heavily ported Nikki carb |
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4 barrel carb on rotary 13b (Holley?), Nope....its a heavily ported Nikki carb |
matthepcat |
May 16 2016, 12:37 PM
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#1
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Meat Popsicle Group: Members Posts: 1,462 Joined: 13-December 09 From: Saratoga CA Member No.: 11,125 Region Association: Northern California |
I am a complete noob when it comes to Mazda rotary engines. Having just purchased a 13b conversion car, I am lucky enough to have found this one which runs excellent.
I am 95% sure that this car is running a Holley, but there are no distinguishing markings anywhere on the carburetor. Here are a few pictures: Is this enough for someone out there to say, "yep that's a Holley"? The only strange characteristic of this carburetor is when I aggressively accelerate up to the 9k RPM range, it will sometimes sputter as I let off the gas like it runs out of fuel. I am assuming that this is a problem with the fuel pump being able to provide enough fuel pressure to flow at that RPM. Reading online I see that most of the racing/high performance rotary guys run a fuel surge tank. Could this help cure this issue, or would a slightly higher performance pump with a good fuel pressure regulator cure the fuel starvation problem? I currently run a Carter fuel pump that is probably old. |
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