1715cc VW-Chrysler 8v engine

Discussion in '8-valve' started by Dave, Oct 5, 2010.

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  1. Dave

    Dave Pedantic Old Fart Paid Member

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    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
     
  2. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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    I remember reading something about this years ago. Was it purpose designed or `off-the-shelf`? If so which model did it come from?
     
  3. Dave

    Dave Pedantic Old Fart Paid Member

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    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.[:s]

    But, I did not check out VW commercials or vans.

    The 1.6 Audi gave more power than that on carbs!:thumbup:
     
  4. A.N. Other Banned after significant club disruption Dec 5th 2

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    [:s] What engine's this Dave?

    Is this the 1.7 8v that the Danster has mentioned on occasion?
     
  5. danster Forum Addict

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    Could be the 1715cc engine. 79.5mm bore x 86.4mm stroke.
    What years did it first appear Daved?
     
  6. Dave

    Dave Pedantic Old Fart Paid Member

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    1978 model year Omni.
     
  7. danster Forum Addict

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  8. A.N. Other Banned after significant club disruption Dec 5th 2

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    "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)."

    [:s] 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."
     
  9. A.N. Other Banned after significant club disruption Dec 5th 2

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    Thread info above split from elsewhere.

    Info now found:

    [​IMG]

    Source:

    [​IMG]
     
  10. Dave

    Dave Pedantic Old Fart Paid Member

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    Good find Boss. My Bosch Injection Manual mentions the 1.7l Chrysler Engine.

     
  11. chopperoli Forum Member

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    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
     
  12. A.N. Other Banned after significant club disruption Dec 5th 2

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    Ah ha. Time to delve into GTI Engineering brochures?
     
  13. A.N. Other Banned after significant club disruption Dec 5th 2

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    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...
     
    Last edited by a moderator: Dec 14, 2013
  14. romaingirardlamamy

    romaingirardlamamy Forum Member

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    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
     
    Last edited: Nov 13, 2010
  15. danster Forum Addict

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    Your Haynes manual is about a decade older than mine. :lol:
    [​IMG]

    [​IMG]
     
  16. A.N. Other Banned after significant club disruption Dec 5th 2

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    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?
     
  17. danster Forum Addict

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    The orange Del Monte cat say "Yeah to the 8v :thumbup:"

    With yesterdays startling torques per valve coefficient calculations, there will be no need for him to port any more 16v heads. :lol:
     
  18. HPR

    HPR Administrator Admin

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    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
     
  19. romaingirardlamamy

    romaingirardlamamy Forum Member

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    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
     
  20. danster Forum Addict

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    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.
     

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