Split from here. From Wiki: Despite looking almost identical, the American Omni and Horizon had few interchangeable parts with their European siblings. Aside from the heavier-looking American body panels and bumpers, the OHV Simca engines were replaced with a 1.7 L OHC engine sourced from Volkswagen, while MacPherson strut front suspension took the place of the torsion bar arrangement found in the European Horizon. The small Volkswagen engine used an enlarged Chrysler-designed cylinder head and intake manifold and produced 75 hp (56 kW) and 90 lbft (120 Nm). C1978
I remember reading something about this years ago. Was it purpose designed or `off-the-shelf`? If so which model did it come from?
I had a quick check on Audi, thinking that they may have used a 1.7 l, while VW used a 1.6 l. No Audi used a 1.6. I could not find a 1.7 anywhere. But, I did not check out VW commercials or vans. The 1.6 Audi gave more power than that on carbs!
Hmm, 1978, very useful info that, proves the 86.4mm stroke crank was in production prior to 1980. http://en.wikipedia.org/wiki/Dodge_Omni
"The small Volkswagen engine used an enlarged Chrysler-designed cylinder head and intake manifold and produced 75 hp (56 kW) and 90 lbft (120 Nm)." Sounds like odd stuff! "The Volkswagen 1.7 was replaced by a Simca/Peugeot-produced 1.6 L I4 unit in 1983. This engine produced 62 hp (46 kW) and 86 lbft (117 Nm), and was only available with a manual transmission."
Crankshaft is from the VW Iltis military vehicle. It's what was used on the early 1.6 to 1.8 engine conversions along with new pistons
Haynes Manual, book 726, published 1982-1986. All VW Golf, Jetta & Scirocco Mk1 models with 1457cc, 1471cc, 1588cc & 1781cc petrol engines, incl fuel injection. Page 25: 1715cc: Compression ratio: 8.2:1 Supplement (page 388) Valve timing (nil valve clearance at 1mm valve lift): Inlet opens 1 BTDC Inlet closes 37 ABDC Exhaust opens 42 BBDC Exhaust closes 2 ATDC Not a single mention of what car it relates to...
A french tuner named cresson used tp offer a 1900 convertion in the early 80 With the 86.4 cranks find in states , new set of pistons , new head with bigger valves 40.5 and 35 with a proper combustion chamber and different cams Seems like the states had the 86.4 before europe By the way we are talking H block here
Deja vu! Looks the same as the page I was looking at earlier + same cover colour too! What does the tuning cat reckon to all this?
The orange Del Monte cat say "Yeah to the 8v " With yesterdays startling torques per valve coefficient calculations, there will be no need for him to port any more 16v heads.
Around 1980 tuning companies like Nothelle, Dennert, Abt, Hartmann, Mahag, kilian, TM, etc, had all 1.8 / 1.9 conversions ( 86.4x 82.5/83.0 ) This needed some material removal at the botom of the bores , to make clearance for the rods iirc Oettinger used a 90,5 and 94.5 mm crank , up To 2.0 l on H blocks
Correct But not sure for the 83 mm bore that s the bigger you can go on H block And on 1.6 stamped block there is less thickness on the cylinders which make me doubt the 83 mm bore
Early diesel blocks might be an option? Possibly they had more strength to them. I have 2 x 1.6 diesels here but they came from 1989 vehicles so marked D and TD on their blocks.