What size taps do you need for direct port...
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From: Port Tobacco, MD
What size taps do you need for direct port... What are the 2 tap sizes you need for a direct port kit?
1/8" NPT - is this the one that comes with the kit?
1/4" NPT - tap size for the -4 fittings that go into the fuel rails or dist blocks?
Phil
1/8" NPT - is this the one that comes with the kit?
1/4" NPT - tap size for the -4 fittings that go into the fuel rails or dist blocks?
Phil
they plug into your fuel injector ports ...
i couldn't pass lol 
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From: East Side Performance! mASShole
Originally Posted by Phil99vette
What are the 2 tap sizes you need for a direct port kit?
1/8" NPT - is this the one that comes with the kit?
1/4" NPT - tap size for the -4 fittings that go into the fuel rails or dist blocks?
Phil
1/8" NPT - is this the one that comes with the kit?
1/4" NPT - tap size for the -4 fittings that go into the fuel rails or dist blocks?
Phil
We also offer the taps needed. However sears or harbor freight will have them.
Shark Nozzles are 1/8 NPT
Pirahna Nozzles are 1/16 NPT
The rail Fittings that come standard with the rail upgrade are 5/16x24 (standard bolt tap)
Dave
Shark Nozzles are 1/8 NPT
Pirahna Nozzles are 1/16 NPT
The rail Fittings that come standard with the rail upgrade are 5/16x24 (standard bolt tap)
Dave
The ends of the rail are 1/8npt x 1/8npt for nitrous and small fuels, and 1/npt x 1/4npt for big fuels, but the rails are tapped 1/8npt for fittings and 1/16 npt for the plugs in the ends of the rails..
