10-04-2012, 08:42 AM
Ruan Wrote:The stroke of the 1.8 is shorter, it's lighter still than an Mi block... Less stroke = more revvy + less torque... That displacement reduction is made up for by a turbo... They're dry liner too, so lovely and strong, but still light weight...
The XU10 is 86x86 - a "square" engine... The XU7 is 83x81.4mm - making it undersquare... I.e. it'll rev harder, you've got less purchase on the rods as they're shorter, giving you more inherent strength in the rods...
That's why WRC rally cars use them as a base block...
GTi6/S16 head bolts straight on with no problems, looked into it a good bit... You can always get valves for a T16 that would suit turbocharging... The T16 uses sodium filled exhaust valves - should fit an S16 head, unsure on a GTi6 head.
I see.. very useul information there ruan, top man... i'll get reading and looking into some stats
Diablo Hdi Dturbo and 205 1.9 project - it lives!