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The engine was running low on ignition advance in the high load areas of the map and therefore limiting the amount of boost we could feed the engine. Additional boost wouldn't have been safe so there was no point pushing any further. Engine wasn't very knock sensitive and IAT never went into the 30's.
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TRQ-STR
In Topic: My VR4 Cordia
19 March 2018 - 03:12 AM
Thanks guys!
Turbo was removed to reposition the coolant feed and return lines to the lower galleries, this keeps them clear of heat from the manifold and rear housing while remaining short and out of the way. The speedflow fittings have just enough room, I’m happy with how the lines turned out.
While the turbo was out, it made sense to start on the new water pipe while I had access to the area (the stock pipe had clearance issues with the larger compressor housing). This became more difficult when I found 35mm SS tube was not really available in Aus, the quickest option was to make my own, this can be seen on the lathe in my last post. Anyhow this is what I’ve come up with…..the new water pipe clears the compressor housing, is made of SS and allows for a 6an return line, dimensions are 34.5x1.2mm.
Fuel rail modified with a weld in 6an bung, this removes the restriction in the factory Galant line.
A few shots I took while welding the radiator,
Here are some bungs I made on the lathe, the large M10x1.25 is the radiator drain while the 3 M6x1.0 bungs will be used as grounding points to eliminate stray current corrosion on the aluminium heat exchangers.
The power circuit is all 2awg and wired as follows:
Positive -
Battery > Alternator > Starter > Factory ignition loom (all piggybacked)
Ground -
Battery > Chassis, Battery > Block, Block > Chassis.
Here’s a shot of the electrically busy side of the bay, the ecu loom is broken down into individual circuits and looks basass!
Custom made MSD ignition leads
With the injection, ignition and fuel sorted, I set the trigger angle and got the engine started. Just had to play around with the ecu as the electrical side of things is no longer compatible with the vr4 basemap or pinout config. It was so nice to finally hear the exhaust after all the hard work, as a bonus it sounds so damn sweet!
Thus far everything is mechanically sound and the engine is ready for the dyno, much more to come.
