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Engine Specific Info and Questions => IDI Engine => Topic started by: blunt on January 10, 2009, 09:30:50 am

Title: 1Y vs AAZ
Post by: blunt on January 10, 2009, 09:30:50 am

whats the difference between the two besides the obvious LDA and turbo manifolds, are the returns there and all, im looking to convert a 1Y to a AAZ basically

Title: 1Y vs AAZ
Post by: jtanguay on January 10, 2009, 12:57:55 pm

apparently the oil return for the turbo isn't there, but you could drill & tap the block.  thats a pretty big tap though  :lol:

alternatively you could get a 1.6TD oil pan and just return it that way...

Title: 1Y vs AAZ
Post by: TurboJ on January 11, 2009, 08:45:05 am

You will want to use crank, rods and pistons out of the 1Y engine - they are very strong and I would choose them over AAZ ones if I wanted to make power. You should also use the 1Y inlet manifold (flows tons better than the AAZ one ) - it can be used in conjunction with the AAZ exhaust manifold.

The 1Y also has an oil baffle, which is nice, and the cyl. head is basically the same. Just swap the injection pump and exhaust manifold and that's it pretty much. ( Oh and the AAZ oil pan which has the oil return bung on it ).

Title: 1Y vs AAZ
Post by: TurboJ on January 11, 2009, 10:44:22 am

OK, I was thinking 1.6 TD once again  :oops:
So, 1Y block + 1.6 TD oil pan for the bung - easier to just an oil-pan fitted return connection.