I know this thread has been dead for a while but I wanted to thank the OP for posting this on the forum. I was inspired by it and have built 2 lean burn mpg 3-stage motors because of this thread. The second one of which is almost done. It's a 11.5:1 3-stage d15b Vtec turbo motor using a small Gt25R for maximum effiency. I am so stoked to finish it. It will be in a very purpose built RT-4WD civic (I'm from Utah). CAN NOT WAIT for MPG results utilizing the higher compression.
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