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Thread: Wanted, 8.5 to one pistons

  1. #1
    Join Date
    Sep 2008
    Location
    FL.
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    1,377

    Default Wanted, 8.5 to one pistons

    1.8, Stndard bore. My Chumper turbo needsa couple. Thanks,MM
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

  2. #2
    Join Date
    Oct 2003
    Location
    long valley, NJ
    Posts
    335

    Default

    a little too much boost, eh?
    Did you melt em or break the top ring land?
    phil hunt

  3. #3
    Join Date
    Sep 2008
    Location
    FL.
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    Ring land. All have been broken directly under the squish band of the piston. Now I blend the piston tops and edges of the head.
    I found two hotter plugs were in the broken holes. I had too much fuel mixture, maybe into the low 12s. ( I have a stand alone CIS-E modded to flow 77Grams per 30 sec per hole). Pretty sure I had some hydro locking at the squish area.

    Was around 10# boost. 26* timing. Should pass around 170HP+ @ those numbers. Ran great for about 6hrs.
    All these drags/street guys say that it will run for 10 years at 10# on the stock pistons.

    Current setup; 9#,less fuel, 1 GPH or more,water [email protected] pre snail, 25* lead. Double Shimmed head gasket, block dimpled between the holes. 4 colder plugs. Blended chambers.

    It still roast both front tires in second gear and torque walks hard in all gears. Fun in the rain. But between this engine and a customer that thinks he should make 300HP with stock pistons, I need some more.
    I will move to the 2.0 next, after I run out of stuff for the 1.8. This rotating ass has been in for 6 yrs. Still uses the same gapless rings( had 150 compression with the broken pistons).
    Later, MM
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

  4. #4
    Join Date
    Jan 2001
    Location
    Flagtown, NJ USA
    Posts
    6,332

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    Interested in a set of low-mileage used ones? I also have a set of brand new .020 over 8.5:1 1.6 pistons and rings if you are interested.

  5. #5
    Join Date
    Sep 2008
    Location
    FL.
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    Used standard bore is the best for me. The block is 2.5 over so I am set up for stockers. Thanks, How much?

    When I hurt this block I will go with the 2.0.

    The next Chumper may have one Buick V6/Caddy Northstar, etc in the back of the Mk 3 Jetta.
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

  6. #6

    Default

    Mike, I have a set of STD 1.8 JH pistons, clean with new rings installed. I changed them out to 10:1 and they only have been hand turned on the engine stand. I can make a deal for them in exchange for one of your prep guides.
    Tom Broring
    Wash DC Region
    ITA Nissan Sentra SER
    HP Triumph Spitfire
    HP VW Rabbit

  7. #7
    Join Date
    Sep 2008
    Location
    FL.
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    1,377

    Default

    Done. Send me an mail . addy below

    I'll send it off .
    Thanks a lot. MM
    Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/

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