Lighter flywheels and general driving

[obi_waynne]

How do lighter flywheels stack up on general stop start traffic conditions?

What do you consider the optimum weight drop for a fast road car?

Has anyone who has had a lighter flywheel fitted noticed any issues or niggles?

 

[BAD63R]

With mine theres noticable difference across the board. Due to GM using the 2.5 V6 all over the world including america, they had to make the engine idle as low 500 rpms due to emissions. but over here they idle at 750rpms. On the 2.5 the standard weight of the flywheel is a massive 14kg which is great when you hit a hill as all the torque is still there with the momentum of the flywheel. However, if done right you can save a huge 9.4kg which makes the car more free revving. Makes a huge difference taking off in low gears.

 

[indiaman]

How do lighter flywheels stack up on general stop start traffic conditions?

What do you consider the optimum weight drop for a fast road car?

Has anyone who has had a lighter flywheel fitted noticed any issues or niggles?

If you are lightening the flywheel of your daily driver, my advice is "Dont". Agreed you will feel a better response-for a split second- that's about it - depending on your engine,some will accelerate noticeably faster with rapid RPM climb, again depending on the gear you are in-Low and second will show the most-
In any case, if you are bent on installing a lighter flywheel,do ensure that your crankshaft is balanced and all bottom end clearances upto specs.