Originally Posted by
chris_r
Problem is, when you go to mod the Z18, everything is pretty much custom made and that's when it gets costly.
By going with a C20XE, the OP has a ton of options available to him, everything from quad throttle body setups to cams and all other kinds of bits available off the shelf.
Don't get me wrong, I still think that the Z18XE and XER are cracking little engines, just when it comes to racing, the C20XE is a hard act to beat, as it has been a proven engine in racing circles. Hell, even Spiess have tuned and built the C20XE into a solid engine for use in Formula 3 cars. There's a mob here in Adelaide that are the Australian agent for Spiess too, but I can imagine you may need to sell some organs for one of their engines.
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