that other pipe is getting removed as well, along with the heat exchanger... if it is just a bypass then blocking it should be fine I would imagine
thats just the heat exchanger by pass ,just run a hose from that to the other pipe that runs from the by pass on the water pipe to the haet exchanger
if you remove the other water pipe you will over heat it as it is a 2 step thermo sta t,and it uses this on start up to warm up quicker same with the heat exchanger it warms up the oil then when it gets up to temp cools the oil down
I'm fitting an oil cooler on the return line for the dry sump, so it can cool it that way, the water in that pipe only goes round the back of the head for the heater and the lines for the cold start throttle body doesn't it? I'm not running either so I figured it would be fine? It still has the other bypass tube that runs from the rear of the thermostat to the upper radiator outlet, which i thought was the critical bypass
on the dry sump set up scavenge then straight to oil cooler ,
cooler to dry sump tank ,tank to oil filter then into motor
a few questions for people, assuming the use of the OEM ECU and 6 speed:
- how does one connect the ae86 speedo and tacho?
- is the beams fly by wire? if so does it crack the shits when you manually control it?
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I can't comment if the OEM ECU requires a signal from an electric speedo drive, but i know (from my 4AG->J160 setup) that a W5X speedo drive fits wonderfully well in place of the electric drive.
And you can probably get a tacho signal by making a 'tacho booster', running off the IGF of one of the coils.
the oem computer requires the use of the original dash to be of any use.... soo all connections for speed and tach etc must be kept the same. Im sure there is a very clever person out there able to fool the computer into seeing the standard dash setup, but for the most part, its the only way i have seen to get it going with stocko computer...
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06/07/2011
The OEM BT Beams ecu has a tachometer output. So either build a tach booster, or modify the circuit board.
Speedo can be converted to mechanical as said above.
The oil pressure sender might work directly with the AE86 dash, test procedure is similar for that part # IIRC (use a light bulb inline & count pulses/blinks).
For coolant, you could add a single wire coolant temp sender by drilling/tapping the upper waterneck. I have an idea for a 2nd option, but not sure if it'll work yet.
I don't know of any need for the OEM dash, it just has a 'multiplex' input so it gets some engine data (IE: temperature, A/T gear position) from the ECU. That way they didn't need to use a second temp sensor, or run more wires for the A/T. According to the diagrams from Bill, tachometer has its own input from a tach output on the ECU. Also the CEL has a seperate output.
Andrew