Lightening a xu10 flywheel
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  1. #1
    1000+ Posts djvu205's Avatar
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    Default Lightening a xu10 flywheel

    im thinking about lightening my xu10 flywheel and just wondering if anyone has gone down this road and could recommend a place to do it preferably in Vic or Nsw. i could probley buy an off the shelf item from o/s but dont see the point if it can be done locally.

    is there some dimensions or specs that i could get hold of and have it machined to them? i did a datsun 1600 flywheel a few years back and i manged to track down a successfull recipe of how much material to remove and where from.

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  2. #2
    1000+ Posts PeterT's Avatar
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    I've had it done at the local engine reconditioning place - Duncan Fosters, Blacktown. There must be an equivalent down there somewhere. The one Parry bought from the UK is significantly lighter than mine however.

    '92 205 Mi16
    '90 Mi16x4

  3. #3
    1000+ Posts pgti6's Avatar
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    I had my XU9 one lightened at Crankshaft Rebuilders, Cottage St. Blackburn. They only removed a small amount-around 300-400 grams.
    Attached Thumbnails Attached Thumbnails Lightening a xu10 flywheel-flywheel-comparo.jpg  
    405 Mi16 2.2 litre race car for sale.
    http://www.aussiefrogs.com/forum/car...-car-sale.html
    https://www.my105.com/ListingDetails...d/518/id/22164


    Lap times- Sandown 1 27.9
    Phillip Island 1 53.8

    Previous Frenchies-
    1988 205 Gti
    1998 306 GTi6
    1997 306 N5 sedan
    1996 306 N3 XT hatch
    1976 Renault R16TS manual in Avocado
    1976 Renault R16TS manual in Trak Yellow
    1975 Renault 5 Guernsey, Channel Islands
    1972 Renault 4 Guernsey, Channel Islands

  4. #4
    Tadpole
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    The first thing when you get down to it and even before you touch any other part of the car you should remove all kinds of fluid from
    [FONT=Courier]http://www.scrapmycars.com]cash for scrap cars. This includes wiper fluids from the windshield, brake fluid, transmission fluid, oil, and radiator fluid. After you're done with that you can remove the battery, the radiator cover and the radiator itself. Next you should remove the brake fluid container, the carburetor, the starter, the distributor cap, the air filter, and the spark plugs. You should also ensure that you have removed all wires. Next you should remove the engine, the exhaust system, the transmission, the seats, door panels, carpeting, dashboard, and steering wheel.

  5. #5
    1000+ Posts PeterT's Avatar
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    Hello Robin7. I see this is your first post. It would be wise to get your programmer to make your replies to threads a touch more personal and more related to the original thread. I'm no expert, but perhaps a lookup table, or some simple if/then statements would improve your responses? And pick a location more local. Good luck!

    '92 205 Mi16
    '90 Mi16x4

  6. #6
    1000+ Posts djvu205's Avatar
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    Thanks guys. Peter can you remember how much you removed from yours? Jeff how did the car feel to drive after you lightened it.

  7. #7
    1000+ Posts pgti6's Avatar
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    There were other changes made engine wise at the same time (rebuilt head being the main one) etc., so nigh on impossible to say how much the flywheel contributed.
    405 Mi16 2.2 litre race car for sale.
    http://www.aussiefrogs.com/forum/car...-car-sale.html
    https://www.my105.com/ListingDetails...d/518/id/22164


    Lap times- Sandown 1 27.9
    Phillip Island 1 53.8

    Previous Frenchies-
    1988 205 Gti
    1998 306 GTi6
    1997 306 N5 sedan
    1996 306 N3 XT hatch
    1976 Renault R16TS manual in Avocado
    1976 Renault R16TS manual in Trak Yellow
    1975 Renault 5 Guernsey, Channel Islands
    1972 Renault 4 Guernsey, Channel Islands

  8. #8
    Fellow Frogger! Bluey's Avatar
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    This is Patpug's XU10 flywheel that had 1.1kg taken off.
    Lightening a xu10 flywheel-pat_gti6_flywheel.jpg

  9. #9
    1000+ Posts 504-504-504's Avatar
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    phew do you get a warning placard for the front seat passenger with that much metal taken off?

    Paul.

  10. #10
    Fellow Frogger! Bluey's Avatar
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    I've been running one like that in my 6 for 80000km, no problems. I'm confident i can get another 100-200g out and still keep its integrity but it's a case of diminishing returns because, for the amount of time it takes to get the first kilo out, it takes the same amount again to get the last 100-200g. That cast iron is seriously hard on cutters. If you want a flywheel under 5.4kg then go and buy a billet one.

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