okay i searched and found nothing. so don't dog me for not trying, but my question is does the newer 2.4's like 00 01 have balance shafts? and the thing i am interested in is can the be removed on a daily driver without hurting anything? anyone who can help would know why i would do this so i think explaining it is erelavent
r.i.p rotary
Yes the shafts are there, but that is the limit of my knowledge on the subject.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Don't forget to search archives either. There's a few post in that search that should help. It helps but with a daily driver it isn't worth it for the extra power unless you know how to do it your self.
here ya go
2006 Cobalt SS 2.4L 9.6 @74mph 1/8th mile w/2.28 60ft
If you want to keep your engines longevity, it would be wise to balance your bottomend
The problem with removing the balance shafts is that the shafts drive your oil pump also, from the crank. You would have to use the oil pump out of the 2.3L as they never had balance shafts. However there is machining involved and is not a easy project.
-Aaron
www.TurboTechRacing.com
Performance Parts For Cavalier, Sunfire, Cobalts and More!!!
Turbo Tech Racing wrote:The problem with removing the balance shafts is that the shafts drive your oil pump also, from the crank. You would have to use the oil pump out of the 2.3L as they never had balance shafts. However there is machining involved and is not a easy project.
As they stated. Removing the balance shafts does not unbalance the motor is you balance it to start.
You could also gut the balance shaft, and leave the assembly so you can use a 2.4 iol pump.
FU Tuning
i don't think the engine internals relay on the balance shafts.. to my knowledge, they are only there to counteract vibration and make the engine well vibrate less.. but what i think i should ask... and i am capable of doing it myself.. is the time and money spent worth the results?
r.i.p rotary
I still have my balace shafts... so... maybe not the most useful advice.. but I know a couple of people (out of... hundreds... maybe over a thousand on here now...) that HAVE removed them... it's a lot of work.
It really depends on what results you're looking for... the supposed hp gains from removing the balance shafts are easier to make up somewhere else... like port & polish and cams.
If you're going to the track and need every last hp available... sure... but no one I know has bothered to do it to a daily driver. Heck, most people don't even touch the motor on a daily driver... just usually stick to the bolt ons... intake, exhaust. Most "daily drivers" don't even see a header
It's a lot of work for not very much gain... just bragging rights, really.
ha my last daily driver was boosted
but yeah if it realy is not worth the efert then i won't even bother, i was hoping it was as easy as the sr20de, theres well just unbolt and your done.. so maybe i will just stick to what i had in mind.. eco swap..
r.i.p rotary
Lenko, John Lenko wrote:I still have my balace shafts... so... maybe not the most useful advice.. but I know a couple of people (out of... hundreds... maybe over a thousand on here now...) that HAVE removed them... it's a lot of work.
It really depends on what results you're looking for... the supposed hp gains from removing the balance shafts are easier to make up somewhere else... like port & polish and cams.
If you're going to the track and need every last hp available... sure... but no one I know has bothered to do it to a daily driver. Heck, most people don't even touch the motor on a daily driver... just usually stick to the bolt ons... intake, exhaust. Most "daily drivers" don't even see a header
It's a lot of work for not very much gain... just bragging rights, really.
Suncavi had a boosted built daily driver 2.4. He said it rev up much quicker. If you are completly rebuilding the motor then it MIGHT be worth it. Also might not be.
FU Tuning
