Richie_k83 Posted January 27, 2016 Share Posted January 27, 2016 Looking into manual conversion on the Supra and was wondering about a Lightweight Flywheel to go in with a new clutch. I was wondering if anyone has done it? and also what they thought of their Supra afterwards? I have looked about and hearing mixed reviews about it.... My thoughts would that acceleration would be vastly improved as there is less rotating mass but you would loose overall top end speed? Any thoughts welcome. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 27, 2016 Share Posted January 27, 2016 It will make the engine more responsive and rev happy, but won't really affect acceleration particularly. Quote Link to comment Share on other sites More sharing options...
Nic Posted January 27, 2016 Share Posted January 27, 2016 The major effect you'll notice is the annoying rattle at idle, really not worth it IMO, stick with the stock flywheel would be my advice. Quote Link to comment Share on other sites More sharing options...
Nic Posted January 27, 2016 Share Posted January 27, 2016 (edited) My thoughts would that acceleration would be vastly improved as there is less rotating mass but you would loose overall top end speed? If you expect it to 'vasty improve' acceleration then you'll be VERY disappointed, the difference will be very small, a 10th of a second (if that) would be far more realistic. Edited January 27, 2016 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Kendo11 Posted January 27, 2016 Share Posted January 27, 2016 As above and as above, just replace it with a new stock one. Quote Link to comment Share on other sites More sharing options...
Richie_k83 Posted January 27, 2016 Author Share Posted January 27, 2016 No worries, thanks for the input...! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 28, 2016 Share Posted January 28, 2016 Removing or adding inertia has no effect on top speed, just acceleration Quote Link to comment Share on other sites More sharing options...
Richie_k83 Posted January 28, 2016 Author Share Posted January 28, 2016 Removing or adding inertia has no effect on top speed, just acceleration Would any gains be noticable though? I have been looking at a couple of options, one is 6.11kg, the other is 4.53kg (although i am not sure of the OEM Flywheel weight) Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted January 28, 2016 Share Posted January 28, 2016 I have a lightened flywheel fitted to my N/A W58 and I noticed difference in acceleration over the standard flywheel Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 28, 2016 Share Posted January 28, 2016 (edited) The lighter the vehicle the more noticeable the reduction in flywheel inertia is. So in a tank like a MKIV it won't make a vast difference, given the inertia in the rest of the drive train and the vehicle's weight. But it will make some. Personally I would be more worried about keeping stresses out of the weak gearbox, assuming you are turbocharging. I would get a clutch that is *JUST* able to handle the torque and not one with cerametallic friction material. A "soft" clutch will slip. Don't even think of racing style gear changes, or drag starts!!! Be *SURE* the driven plate has damper springs in it, they will help cushion the `box from shock loads. The reason bike and F1 engines rev up and rev down ultra fast is they have very little inertia. A diesel is usually at the other end of the inertia spectrum as they have heavy pistons and rods and a huge flywheel to dampen the combustion pulsations. Edited January 28, 2016 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted January 28, 2016 Share Posted January 28, 2016 I noticed a difference in my response. Bang for buck, it's not a great jump for the price. If you turbo the engine, your need a higher performance flywheel anyway. Quote Link to comment Share on other sites More sharing options...
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