Can I Drill a Automatic's Flywheel to Lighten It??????

[scottr126]

Hey I have a Automatic Talon with a 420A Non Turbo Engine with a 8 Bolt Flywheel? Could I drill the Flywheel to Lighten it a little bit? Or would there be problems with it? I would rather drill it myself than pay 400+ for a new one.

[Turboturd]

I've never seen a N/T DSM flywheel but most are drilled/ have holes from the factory. I would not go drilling holes in anything that spins at 7k rpms without proper knowledge of metal strenghs and such. Your just asking for disaster. Lets say you did drill it yourself you would have to take it to a machine shop to get it rebalenced anyway.

If you want your motor to spin faster :
1. get the crank knifed
2. get a higher stall converter
3. free up air flow as much as possible
4. N20

[Blackboost]

Since when AT cars come with a flywheel from the factory???
However they come with a flexplate, which is the part which mates your torque converter to the tranny. And no, you shouldn't drill it to lighten it. It's a very thingn part by itself and it doesn't need to be made more fragile than it's already...

[scottr126]

Oh I figured that after the "Flexplate" is where the transmissions differ, like instead of a torque converter on a Manual Trans there was a clutch. My bad! Does anyone sell lightened Flexplates that anyone knows of?????

[Blackboost]

Originally posted by scottr126
Does anyone sell lightened Flexplates that anyone knows of?????

Personally I don't know about a sinlge vendor who sells one. But take into consideration that the part is vey light indeed. Most of the members that have an AT car are actually looking for one that's stronger than the factory one.

[FirstGen-NT]

Heh, i wouldn't do it. The flexplate doesn't way enough to lighten and even taking a small chunk of material off could unbalance it with HORRIFIC results.

[turbojoe]

I doubt ligthening the flexplate would have much effect , the torque converter/ flexplate weight is made up of mostly of the weight of the torque converter. I've never seen lightweight flexplates only ones designed for increased strength.

[turbotard]

what would even be the point of going trough all this trouble?

[turbojoe]

EXACTLY!

[RochNY91TSI]

The flexplate weighs maybe 5-7 pounds, it's no thicker than a few millemeters and is pretty flimsy. Don't try messing with it if you like the torque converter staying connected to the engine...

[eagletalonawd]

I will post pictures of my cracked flexplate when I get my camera. I WANT A BILLET ONE! :D Anyone know anyone that could do something like this for us for a nice price? :)