Balance Shaft Eliminator Kit????

[agginline86]

if the power gains are negligible then ill probably just save the 100 bucks and put it toward some bigger injectors. Thanks for all the post guys,

like i said, this is just from what i've read in the past. to be taken with a grain of salt

 

[Valet]

Sorry dude, but that's not true. Honda wouldn't have taken the time & money to design, manufacture and install them if there was no point in it.

The purpose of balance shafts is to reduce vibration of the engine, mostly at idle. I'm not sure if you can delete it without harming the engine.

I meant no point if you're building a motor that will have, I'm assuming, stiffer motor mounts. It's gonna vibrate like crazy anyways and it's for maximum power not comfort. Although OP might have different goals than what I just generalized.

 

[xci.ed6]

I've eliminated them on a few DSMs, and found they had little effect on vibration, even with filled mounts. Some, the ones with silicone (instead of window weld), actually seemed smoother.

You can probably DIY a kit. On the DSM's we'd cut the balance shaft to keep only the oil pump drive, and then reinstall the rear bearing crooked to block the oil passage. Supposedly worth 15hp, the butt dyno saw an improvement, but I don't think it was 15hp.

However, that was a 2.0 engine, with a relatively large bore and a short stroke. The F23 has a fairly long stroke, which could cause vibration problems. Enough to cause bearing damage, I would doubt it, unless the engine is being used at constant high RPM. The Nissan KA24DE has a long stroke also, and no balance shafts, but they die really fast with sustained high RPM.

 

[greekpizza]

I meant no point if you're building a motor that will have, I'm assuming, stiffer motor mounts. It's gonna vibrate like crazy anyways and it's for maximum power not comfort. Although OP might have different goals than what I just generalized.

No your are being fairly accurate, I do plan on window welding the mounts until i can get some innovative mounts.

I've eliminated them on a few DSMs, and found they had little effect on vibration, even with filled mounts. Some, the ones with silicone (instead of window weld), actually seemed smoother.

You can probably DIY a kit. On the DSM's we'd cut the balance shaft to keep only the oil pump drive, and then reinstall the rear bearing crooked to block the oil passage. Supposedly worth 15hp, the butt dyno saw an improvement, but I don't think it was 15hp.

However, that was a 2.0 engine, with a relatively large bore and a short stroke. The F23 has a fairly long stroke, which could cause vibration problems. Enough to cause bearing damage, I would doubt it, unless the engine is being used at constant high RPM. The Nissan KA24DE has a long stroke also, and no balance shafts, but they die really fast with sustained high RPM.

yeah i think im gonna play it safe and keep them, just the risk that i could damage the engine by removing them is enough to steer me away. Especially if the reward doesn't seem to really be much.

 

[AFAccord]

I mentionned the BS had its own belt then edited my post, my bad. You can't do this because the BS belt also drives the oil pump.

The BS belt is completely independent of any other component. You can cut the thing off and pull it out and the car will run fine. The vibrations cancelled out by the balance shafts is purely for comfort and has nothing to do with the functioning of the engine.

No your are being fairly accurate, I do plan on window welding the mounts until i can get some innovative mounts.

yeah i think im gonna play it safe and keep them, just the risk that i could damage the engine by removing them is enough to steer me away. Especially if the reward doesn't seem to really be much.

The benefit to deleting them is higher and more consistent oil pressure, plus reduction is parasitic losses. You won't damage the engine by removing them, but I wouldn't run the car long term without the belt since you're not sealing off the oil passage to them like the kit does. Basically you're bleeding oil past a stationary shaft. THAT's pretty useless.

 

[xci.ed6]

No your are being fairly accurate, I do plan on window welding the mounts until i can get some innovative mounts.



yeah i think im gonna play it safe and keep them, just the risk that i could damage the engine by removing them is enough to steer me away. Especially if the reward doesn't seem to really be much.

BTW, by sustained high RPM, I meant: rev limiter for 10+ minutes.