Injectors/dual feed rail

Archives of Posts to the NZ MX5 List back in 2003
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SLYDIT
Keep calm, Forum Moderator here.
Keep calm, Forum Moderator here.
Posts: 1610
Joined: Sun May 21, 2006 6:18 pm
Location: In the Garage.

Injectors/dual feed rail

Post by SLYDIT » Wed May 07, 2003 5:36 pm

Lou:
You can simply remove the fuel rail and drill and tap
a fitting into the #4 end of it then hook it up to the
incoming fuel line for a dual feed.. lots of FI guys
on the net have done this and have reported great
results. by the way, When running high pressure/flow
pumps it has been found that they overpower the stock
pressure regulator and the fuel pressure wont stay
below 60 psi, so they put a small bypass on the reg so
the pressure can be brought back down to 45 psi.
another mod to consider when runnin FI is to do the
coolant re route so the mx block gets PROPER flow
through it, by putting the thermostat at the back of
the head and plugging the original t'stat hole with a
freeze plug. Just about the only coolant flow that #4
sees is the coolant which runs out the back of the
head through the heater. not good. by doing the
coolant reroute and duel feed rail, tuners have
reported that they can run 3-4 degrees more timing
before knock sets in due to #4 now running the same
temp and mixture as #'s 123. These mods are also great for engine life.
just a few more things ive found out while surfing.
Glenn "SLYDIT">
RED '90 TURBO.
SCARING PRIUS DRIVERS SINCE 2002

lou Girardin

Injectors/dual feed rail

Post by lou Girardin » Thu May 08, 2003 7:58 am

I would have done the dual fuel feed if I kept the car, I've got a spare at
home. I don't think my set-up warrants the coolant reroute though.

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