Originally Posted by Rick
Just had a look at those sites.
So, from what i can see, the Spi is a derivative of the CVH, and is still being used? The CVH was discontinued a while ago here. What is the bore and stroke compared to the 1.6? I wont use the 1.9 as it is simply longer stroke, and offers no more breathing potential - the factor that limits power on turbo'd engines.
Does a normal CVH head fit onto the spi?
The SPI head will fit the normal US 1.9 block, but it does make it low compression and an interferance motor. The regular US 1.9SEFI head may fit the 2.0 SPI block, but there may not be enough valve clearance because of the SPI pop top pistons. The reason no one really know's if the US 1.9 head will work is because it's the worst flowing head the US has ever had on a CVH, so we usally dont bother much with it. But the US SPI head is the best flowing head we have ever had on a CVH, so we like to use that head instead.
The 2.0 SPI was used from 1997-03 or 04. Now the CVH is discontinued.
The US 1.9 and 2.0 CVH make all of there power down low in the power band, mine makes most of it's power at around 3000-4500 RPM's, it feel's like a torqy V8. But my small turbo may be the reason for that.
Originally Posted by DazC
Why is there no intercooler on the red car? It would benefit from one.
There is.