PHaT MR30 Posted March 31, 2005 Share Posted March 31, 2005 I have my flywheel off and i am wondering if i should get it machined and maybe even lightened slightly?? Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/ Share on other sites More sharing options...
R33S2 Posted March 31, 2005 Share Posted March 31, 2005 The pros of a lighter flywheel are A. less weight B. Slightly more responsive The cons are the motor stalls easier (less inertia) Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-1276612 Share on other sites More sharing options...
PHaT MR30 Posted March 31, 2005 Author Share Posted March 31, 2005 any indication of the minimal amount to have taken off to get a slight more response? Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-1276649 Share on other sites More sharing options...
wilch Posted March 31, 2005 Share Posted March 31, 2005 Most workshops I went to will only machine it to make the top flat again. They won't "deliberately lighten" the stock flywheel. The reason I was given was that if you lighten it, you weaken it. If it's too weak it can shatter, and if it shatters while you're driving the fragments are likely to break through into the cabin and cut your feet off. If you want a lightweight flywheel, I'd recommend getting something like this: from Unique Autosports www.nismo.com.au I bought one and had it installed when the new clutch went in. I noticed the difference instantly. Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-1277455 Share on other sites More sharing options...
usuckpoo Posted April 1, 2005 Share Posted April 1, 2005 Yeah dont lighten a stockflywheel because it will weaken it and if so, u risk shattering it. Off the shelf aftermarket flywheels are usually lighter becos of material and also construction while maintaining strength Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-1278799 Share on other sites More sharing options...
n1k00 Posted July 14, 2010 Share Posted July 14, 2010 (edited) I have done this on many of my cars however they were all a mild tune if your hoping for 275kwatw or more you are beter off buying one Edited July 14, 2010 by n1k00 Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-5345332 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted July 14, 2010 Share Posted July 14, 2010 i wouldn't lighten a stock flywheel... ever have you have ever seen the result of a flywheel letting go @ 7000 revs? it aint pretty! Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-5345800 Share on other sites More sharing options...
Birds Posted July 15, 2010 Share Posted July 15, 2010 Yeah it's not terribly bright. Up there with welding a diff in a daily driver (and I know your sentiments on that Hamish ). Always buy a lightened flywheel. Meh @ weakening the structural integrity of 15-20 year old metal. Thread dig to the maxxxxxxxxxxxxxx Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-5347748 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted July 15, 2010 Share Posted July 15, 2010 f**k hella thread dig lol adam, you'll be pleased to know that i just swapped out my welded diff in the ke.... for an S series welded diff bwahahahahahahahha Link to comment https://www.sau.com.au/forums/topic/68911-flywheel-machining-should-i/#findComment-5348962 Share on other sites More sharing options...
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