Anyone know what size and thread type is on the fuel rail test port? thanks.

 

Quote:

Originally Posted by performanceisland

Anyone know what size and thread type is on the fuel rail test port? thanks.

From an old post here on the Forum, I read that it is an odd size 6 "Komatsu" type fitting, and hard to find. Are you talking about the end of rail with the schrader valve and plastic cap on it, or where the fuel line connects to the rail at the back of engine? Needswings sells the adaptor kit for the rail end that converts to NPT, so you can add gauge, and or a tee to connect fuel rail x-over for a modified fuel rail. I'd check with Rob @ Needswings.

 

Yep.. Rob@Needswings has everything you need. That's where I got my fuel rail gauge adapter kit. Squirrel Crusher

 

how about what size are the fuel lines (i.D.) I want to replace any short runs around the fuel pump and filter while i change out the filter.

 

your filter is the regulator make sure you replace with the correct one or install fuel pressure regulator other wise u will have somewhere 100 psi. jim

 

I know.

Does anyone know what the factory filter flows? i have a pierburg slk55 amg pump, but the check valve is going, so going to install a check valve, my options are new factory filter, or the high flow filter with no regulator, but then i need to install a seperate regulator, the slk55 amg pump comes with the high flow filter i think, cause it only has two ports, no third.

Are there different part numbers you guys are using with regulator already inside or just the factory oem one and the non regulator high flow filter from slk55 amg?

 

get with Rob at needswings, he knows what stock pressure iss out mor I know the stock pump pute psi than we need just not the volume, I THINK ... the stock filter/regulator holds everything back. the best thing to do is get the needswings fuel system setup with external reg. jim