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> Pros/cons of lightened flywheels on stroker engines
Tdskip
post Aug 17 2020, 09:49 AM
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Good morning. On big Type4 engines that are going to be used on the street, it appears that keeping a stock flywheel is a plus for drivability but I’m also wondering if the bigger engines have enough torque that they can handle it lighter flywheel for a bit more zing of an experience.

The one that was on this 2.7 L motor I’m sorting out was shaved down to 12.3 pounds which seems a bit to light for street use.

EDIT - did some researching it appears that too light of a flywheel will make the car a pain on the highway, so maybe just stick with stock weight?
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gandalf_025
post Aug 19 2020, 12:44 PM
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My lightened flywheel experience isn't from a Porsche, but a Corvair Turbo.
I drove the car with the stock flywheel for a year or so and then swapped to the lightweight one only because it became available cheap and I had to replace the throw out bearing anyway.
Initial feeling was the car responded to the gas pedal faster.. Accelerated somewhat quicker and when you let off the gas, you didn't always need to tap the brake to slow down in some situations. It "felt" more responsive I guess you would call it.
Also the Corvair and most early Turbo Cars had terrible turbo lag and the flywheel being lighter "seemed" to let the engine spool up faster and lessen the lag to a point.

This was all subjective.. I personally liked the feel ... but maybe not for everyone.

I wish I could have put one on my 77 930.. But I was too cheap to buy one for what they were asking.
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