After a great run on my first track event (hopefully get a video of some of it)
I decided to look at the MPI intake manifold I got from a Mighty Max
from the states.
The fuel regulator mounted to the fuel rail needs to handle boost pressures which the
original probably doesn't
I bought a second hand Denso EVO 4 hoping it would fit as it looked similar. I was wrong! The mighty max fuel
rail has an 11mm hole and the EVO use 16mm.
I thought I was going to have to get an aftermarket fuel rail adapter and regulator but in searching for
compatible ones I discovered that other japanese makes had very similar looking regualtor, I guess again made
by Denso. It the end I decided to take another gamble and bought a Nissan R33 GTR fuel regulator.
Bingo! Although the mounting holes don't line up but at least the important part fits.
So this happened.
I tried to clean the old cast aluminium but gave up and decided to remove the casting marks. I then
cut the centre out to clear the bolts on the head (perhaps for a mechanical fuel pump?) and give it a spray paint.
New gaskets made from gasket paper and Hylomar blue used on all surfaces.
EVO 4 injectors installed.
The single wire water sensor is for the water gauge and the two wire one is for the ECU.
Here is the VW MAP sensor and combined IAT to run speed density on the EVO 8 ECU.
And then I cut one side off!
And mounted it by drilling a 12mm hole for the sensor to protude and a 5mm hole tapped to M6
to hold it in place. The small recess in the manifold and the way the connector is angled out
you'd be hard pressed to believe the two weren't designed for each other!
Installed a new 82 degree celcius thermostat, some sources say 82 others say 88 so decided to go with the lower one.
Next problem to solve is the throttle cable bracket and the fact that the cable wants to be mounted
to pull the throttle lever towards the plenum/manifold.
This is OK on most mitsubishi manifolds as the throttle body sits on the end and runs down the side of the plenum.
I stared at it for a while and decided to take the lever off and flip it around. This looked good, but then
I lost the stops for both full throttle and closed throttle (adjustable with a bolt). Stared at it some more then
had a great (IMO) idea of getting another throttle lever and running one for the throttle stops and the other for
the cable to attach to! I need to get one first from a scrpa yard but I think it should work.
Also working out a shape with cardboard needed to make a bracket to hold the cable, will probably use two
of the throttle body bolts.