V6 JTS Lightend flywheel? - Alfa Romeo Forum
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V6 JTS Lightend flywheel?

Hi guys i would like to find out what is the general amount to reduce weight on the flywheel by for a streetable car.

As some know im very busy with my 3.6 conversion, the 3.6 displaces massive amounts of torque, about 400nm, i want to trade some of it in on KW and take away a little bit of the super linearity of the JTS motor by lightening the flywheel a little bit, but obviously not so much that its undriveable, luckily the JTS motor outputs 90% of its power by 1500 rpms or so i think so there is room to play a bit, i think a free revving JTS motor would be nice, the torque is more than enough so some free revving KW's will make a nice performance balance.

So in short, what is the average weight reduction for a flywheel?

I tried googling this but came up with no definite results

oh well time to ask the experienced


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As much as can be removed safely.
3.0 dmf is almost twice a GTA flywheels weight as an example.
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as much as what?

Is the GTA much more free revving than the 3.0 then?
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i would have been concerned that the revs drop too quickly between revs though?
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Originally Posted by BenzinaBrera View Post
i would have been concerned that the revs drop too quickly between revs though?
I also think revs will drop / rise quicker - this way you must teach yourself to change a bit quicker - its a win-win then for fast acceleration - down gear becomes a bit trickier as a mid-change throttle blip might be needed to match RPM or you'll use up more clutch / tires.
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