Will a lighter flywheel...

[Fuze911]

Will a lightened flywheel help the motor rev a little faster uphill under load?

I would love for my forry to be able to climb inclines a little better and knowing that im at 150k my clutch is just begging to be replaced. So the question is with the lighter flywheel would i would be able to rev a little higher a little faster and keep the revs there? or will it bog just as fast as the stock setup?

Thanks in advance. Hope this question makes sense.

 

[nipper]

Subaru's do not like lightened flywheels unless you don't mind a rough idle..

 

[Fuze911]

ah, good to know. Thanks. I couldnt really find any info so id thought id ask.

 

[nipper]

Thats something people tend to forget with boxer engines. Equal and opposite forces are both good an bad. Good it reduces bearing wear to almost zero and makes for a smooth idle. Bad the inertia (mass)forces tend to cancle each other out, so without that heavy factory flywheell, the engine pulses can be felt, and can make for a weaker power delivery.

 

[Fuze911]

i see. So the only thing that can get me up that hill with more ease is more power. Ok cool. Thanks.

 

[nipper]

Yes. All a lighter flywheel will do in most engines will give you a faster throttle response, and minmal power gain. What you need is to pick up either thrust or torque somehow. Thrust is a factor of tire size and diff ratios.

 

[El_Freddo]

i see. So the only thing that can get me up that hill with more ease is more power. Ok cool. Thanks.

A H6 conversion like SKT's should sort out your power issue

Cheers

Bennie

 

[d_generate]

Lighter flywheel will make it harder to get off the line as it reduces low down torque, great for the track but crap for the boggy/soft stuff.

 

[Dulagarl]

A light flywheel is actually a problem. Many MY03 forries (mine included) has their flywheels replaced with double-weight flywheels under warranty. IMO, subaru should have done a recall on all manual MY03's, but were arses about fixing the problems.

The problem was, on gear change, you would get a Vrrrrrrrrpppppp noise, which was the flywheel slipping against the clutch. I took mine to docklands several times and they initially claimed it was a faulty engine pipe, then claimed they fixed it, then finally conceded it was the flywheel.

I understand that the problem was fixed in models after the MY03.

 

[Fuze911]

I see. I was just wondering because after i installed a 14lb flywheel into my 1.8t vw gti with bigger turbo, the car would rev faster and easier. The stock flywheel is 24lb in those cars.

I was just trying to do some research on what would make my car handle hills better. Seems like only realistic solution for us U.S. guys is an auto tranny swap. But the the swap makes even less sense once you calculate costs and the hard the job will be. Guess ill have to live with the challenge.

 

[d_generate]

Suby flywheel is probably only around 11kg, a lightened track one is usually around 7kg so similar weights but you need the mass of the flywheel to get you moving or you'll be dumping/slipping the clutch to get moving in the dirt.