Installation Instructions for Fuel Rails
factory chrome feed, return lines, and fuel rails. Remove injectors from
original rails. Clean and cover to keep dirt and dust out. (Caution: Contents
may be under pressure)
B. Take CarTech Fuel Rails and install desired fittings. Use
loctite pst, liquid teflon or
teflon tape. When using teflon tape do
not run tape over the hole in the end, as pieces of
teflon can get into an injector and clog
it. (See diagrams 1 & 4 on following pages for
proper fitting use. We recommend using
diagram 1 with a CarTech fuel pressure
regulator) Do NOT over tighten fittings
into fuel rails, it can cause the rails to leak if done
Return Style Regulator
Feed Side Regulator
C. Take injectors and install them into the
CarTech rails by using silicon spray or WD-40.
Be careful not to pinch the injector o-rings
and take your time. Once in, rotate clips to the
outside of the rails.
D. Set rails on the intake. The rail that is capped off goes to
the front on the drivers side.
Use the spacers provided between the
intake and the brackets if needed. (Stock distributor
will need spacers on drivers side
only and MSD requires no spacers)
E. Run -8 Braided Line in the back as a crossover. Then run the
fuel inlet on passenger
side and -6 return out of the drivers
side to the fuel regulator.
F. When cutting braided line - mark it from the middle of the
fitting, then wrap duct tape
(or suitable tape) over the hose, center
the mark on the hose to the center of the tape. Cut
it with a saw, wheel, band saw or hack
saw. De-burr and install into receiver part of the
fitting (red part) and turn counter
clock wise until hose is positioned just below the
threads in the receiver fitting. Spray
silicone or WD-40 into this hose and fitting. Then
install the other part of the fitting.
Be careful not to strip the threads. Tighten until both
parts of the fitting are flush. Some
adjustments may be required to ensure all fittings line
up w/ no bind in the hose.
G. When running your fuel line, do not run any lines through the
drive shaft tunnel, not do
you want to mount the fuel regulator to
the firewall. Fuel lines must be on the outside of
the frame rails and/or frame connectors.
ANY deviation from these specific instructions
could cause your vehicle to fail
technical inspection or be disquilified from any N.H.R.A.
owned or operated track, or any track
following the N.H.R.A rules. For further rules and
regulations on fuel systems, please
refer to page 140, section 1:5 of the N.H.R.A.
H. Tighten all of the fittings at all of the joints and prime the
fuel system. DO NOT start
your engine! Just prime to check for
leaks at the injectors, rail fittings, regulator, and fuel
inlet. To properly set and check
pressures, it is recommended that you use a fuel pressure
check gauge at the regulator or an -8 to
-8 fitting supplied in the fuel systems. An under
the hood gauge as well as a cowl or
inside your car gauge will help in tuning your engine
to its peak performance. Note: Do
NOT run fuel inside the car; An isolator kit will be
needed for cockpit mounted fuel pressure
I. Once you have checked for leaks, start engine and check again.
fittings and hoses for leaks as well.
Please call out office @
210-333-1642 if you have any questions. M-F 8:00 am to 5:00 p.m.