1.7IE 16v (AR33) - specs needed

[TBox]

Hi all!
I would much appreciate if someone could provide me measure of connecting rod (center to center) for mentioned engine.

I'm planning with my friend turbo conversion and these specs are vital for calculations and considering of conducting this project.

Thanks in advance!

[kaBOOM]

Are you planning to alter the compression ratio of the motor by useing a shorter connecting rod? Or are you useing custom rods that are a lot stronger?

I don't have any 1.7 rods out of a motor at the moment, sorry!

[TBox]

Well for the moment, everything is possible, but first we have to do is to determine which part of engine is best for altering compression ratio. Torque overall shouldn't go over 220-250 Nm, so structure and design of stock connecting rods should be satisfying. Relation between bore/stroke is ideal for high revs (yup, high revs with turbo ). If you divide bore/stroke; (87/72) - you get index above 1 (1.208) which is ideal for high revs and pointing to endurance, there we can go (probably) for shortening.

Yup, also if somebody can measure altitude from center of piston pin to top of piston would be good to know.

[Sud_Oscar]

Hello, quick estimation of conrod lenght (cc): 128.6 mm.
Piston height: 35 mm
I´m also thinking of turbo for this engine, maybee with E85 fuel (85% ethanol, 15% gasoline) to avoid knock problems and the need for low CR. I know one swedish guy who put turbo on his 1.7 carburettor engine with E85 fuel. A lot of power......

[TBox]

Thx for measures!

My friend says;
85% Ethanol 15% gasoline = 102 Octan RON
Take care, most of metal elements in fuel feed system doesn't perform good in interaction with methanol, including fuel tank. Example; if you drive with 1 bar boost with gasoline, you can go on 2 bar with E85. Question is how long will last with stock fuel injection components...

If we decide to go for Turbo conversion, I'll inform you step by step about our progress. Just to give you a clue; starting point is two smaler turbo's on IE boxer.