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smoltz · 05-05-2025, 12:19 PM

Anyone here experience fuel cut out at high RPM on track? Stock FA20 w/ Tune+Headers.

This was on a straight after a mid-g left hander.

I had about 3/4 tank of fuel, maybe a little less. Getting what I suspect was fuel cut out at high RPM in 4th, felt like I was hitting the limiter but I wasn't even close to it.

Is there a good way to verify this? Other than just replacing/upgrading fuel pump.

I see some older bosts about flapper mods and such but seems like DW300C fuel pump is the permanent solution?

Thoughts? Suggestions?

05-05-2025, 12:19 PM	#1
smoltz Member Join Date: Jul 2015 Drives: 01 911 Turbo, 03 G500 Location: New England Posts: 89 Thanks: 37 Thanked 69 Times in 30 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Fuel Cutout @ High RPM in 4th Gear Anyone here experience fuel cut out at high RPM on track? Stock FA20 w/ Tune+Headers. This was on a straight after a mid-g left hander. I had about 3/4 tank of fuel, maybe a little less. Getting what I suspect was fuel cut out at high RPM in 4th, felt like I was hitting the limiter but I wasn't even close to it. Is there a good way to verify this? Other than just replacing/upgrading fuel pump. I see some older bosts about flapper mods and such but seems like DW300C fuel pump is the permanent solution? Thoughts? Suggestions?