Does anyone know if I changed to a lighter flywheel if it would change my idle speed, or will my ecu compensate?

Idle should be fine

Does anyone know if I changed to a lighter flywheel if it would change my idle speed, or will my ecu compensate?

where have you found a flywheel?
and what are the specs on it?

No, a lightweight flywheel will not change how the car idles

Keep in mind though about a lighter flywheel...

More horsepower, less torque.

The weight of the flywheel is one of the main factors in how torque is generated. Get on too light and you won't have any accelleration in the lower gears, but you'll be quick as hell in 4 and 5!

thats where the crank pulley comes in handy lol. Its probably better not having one though. Its our torque that helps us go quicker in the 1st 3 gears. It would probably be a good idea if we had a higher top end

Actually the lightened flywheel will allow faster acceleration in the lower gear because that is when the engine changes rpm more quickly and having it lighter allows for quicker revs and quicker shifts. The down side is that you will probably screw up the engine balance with the counter balance shafts and will stall more easily when letting the clutch out since you have less mass in the flywheel keeping the engine turning over between power pulses from the pistons.

not really trying to steer to a new topic but would it be even better to do a clutch upgrade? I been interested to do it but good to hear some opinions

the only reason to do the clutch upgrade is if you are putting more power through the transmission. Otherwise, its totally unnecessary and will just make daily driving more annoying

oo. thanks for the quick response too lol. So would the flywheel be a good investment? I want quicker shifting and faster acceleration i dont mind at all.

this is the thing with lighter flywheels

yes, the car will feel faster, but it will be more difficult for daily driving.

since there is less rotating mass, the revs are going to rise much faster, but they are also going to fall much faster in between shifts. This means extra work on your synchros and less-smooth shifts

flywheels are poop then. i'll just get a ssk lol

get the trd and nst kit! TRD for the outside and NST for the inside

haha. i'll prolly just settle with nst. apreciate the help tho

for what its worth, i have a lightweight flywheel (SPEC) and a stage 2 clutch (Comp Clutch) in my Yaris. The car revs and accelerated much quicker. The clutch pedal feel is not too much different (a tiny bit stiffer) but the car is NOT annoying to drive at all. I love it!

ok. just a recap. the yaris flywheel will work on the xd right?

I'll pass - less torque in a xD sounds like a BAD decision! The xD has no guts at the low end.


Keep in mind though about a lighter flywheel...

More horsepower, less torque.

The weight of the flywheel is one of the main factors in how torque is generated. Get on too light and you won't have any accelleration in the lower gears, but you'll be quick as hell in 4 and 5!

NST offers lightweight clutches and flywheels and all our customers who have actually used them have offered positive reviews and feedback thus far.

Add the NST Crank Pulley and NST SSK and you will feel like you're driving a totally different car!!!

just send me a link for flywheel and clutch for our little xd and i'll see what i have in my piggy bank :icon_mrgreen:

Im with xD kidd, give us a link please

NST offers lightweight clutches and flywheels and all our customers who have actually used them have offered positive reviews and feedback thus far.

Add the NST Crank Pulley and NST SSK and you will feel like you're driving a totally different car!!!


Mike, you should get your hand on an xD and do a test fit. I'm almost sure that the Spec flywheel for the Yaris should fit the xD as both car share the same transmission.

Mike, you should get your hand on an xD and do a test fit. I'm almost sure that the Spec flywheel for the Yaris should fit the xD as both car share the same transmission.


I'll have some info for you guys soon :icon_smile:

bump for updates! :mad: ( not really mad but thought it looked funny so yea :rolleyes: haha)

Reaching waaaaaaay back. Bump for updates.