Does anyone know where I can get a little mechanical fuel pressure gauge to install on my STR fuel rail??

 

summit racing

 

do you know the thread size i need for the str rail?? i have the newer type with the gauge hole already there...

 

1/8" NPT. I haven't seen a fuel pressure gauge yet that wasn't 1/8" NPT.

 

the one at summit racing is cheap and works good

 

Mounting a mechanical fuel pressure gauge on the fuel rail is a bad idea. The vibration from the motor will eventually rattle the guage apart and cause a fuel leak. I would definetly mount it somewhere else and use a remote line (-4an) to connect it to the rail. Summit sells an Auto Meter mech. guage and optional -4 line in different lengths for this.

 

why would str put a mounting hole on their newer rails then?? it seems pretty sturdy too me.. its not some custom job

 

It is not true. I have B&M fuel pressure mounts right on top of AEM fuel rail for over a year now. No fuel leak, no problem.

 

yeah.. thats what i though..

 

it would be better to mount it somewhere else, but it will probably be fine on the rail. it may be a little harder to read because of the vibrations too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote">the one at summit racing is cheap and works good</TD></TR></TABLE>

I agree

 

I am just explaining this from experience. I went through two VDO guages and one time it left me stranded with a fuel leak. They put the 1/8th NPT on the fuel rail for many reasons, not just to mount the guage. Go ahead and try it, if it works good for years then more power to you. If it rattles apart and leaks, then I told you so.