Balancing flywheel/PP/clutch assembly, For my winter AX upgrades |
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Balancing flywheel/PP/clutch assembly, For my winter AX upgrades |
Chris Pincetich |
Jan 25 2007, 11:30 AM
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#1
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
I just received a 13lb flywheel in the mail yesterday from Dominic (IMG:style_emoticons/default/beerchug.gif)
I've read about the advantages of having the engine rotating mass balances, especially in race engines and those that see high rpms a lot. I am putting this med weight flywheel in my stock 1.7 for AX when I do a side-shift conversion in Feb. What's the best plan for installing this flywheel? Some say (i.e. Jake Raby) that if you can't dynamic balance every last bolt then don't bother. I'm thinking I want to send this mildly used flywheel for balancing. Would it be a waste of time and $$$ if the internals of my engine are not part of the balancing (i.e. crank)??? I can remove the clutch and PP (and bolts and gasket(?)) have this entire assembly sent for balancing...that seems like the best plan, but means having the car up on jack stands for the duration of the machine shop work (IMG:style_emoticons/default/dry.gif) Any referals to a competent shop in the SF Bay area close to Oakland are greatly appreciated! (IMG:style_emoticons/default/beerchug.gif) |
Joe Ricard |
Jan 25 2007, 11:39 AM
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#2
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
balanced flywheel is meaningless. you really do have to do everything.
Pressure plates can be significantly out of balance. Rods are never the same nor are Pistons. You can reduce the amount of material to take off if the flywheel and crank are indexed to the best balance. which means you don't use the roll pin anymore. 225.00 plus shipping is Not that much from Raby. Define High RPM..... Autocross normally doesn't see high RPM for long duration. Rather short sprints to 6 grand which your heads will be all out of Umph by then anyway. |
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