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balance shaft elimination kit

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mikeesho1

Probationary Member
17
0
Jun 28, 2011
romeoville, Illinois
Hi wanted to know what the purpose of the balance shaft elimination is. Will i run into any problems in the future. what about the vibration. Would anybody be able to tell me if it frees up any hp.:rocks::banghead::banghead:
 
Purpose of a BSE is to eliminate a possible point of engine failure. If that balance shaft belt breaks, it can wind up getting sucked into the timing belt and wreak havoc on the engine. You should not run into problems in the future if it is done correctly. It may free up a pony or two, but nothing even worth mentioning.
 
Purpose: To eliminate a fail point.
Future issues? Nope.
Vibration: Varies vehicle to vehicle depending on the type and condition of the motor mounts and roll stops. Some get alot, others can hardly notice a difference. Most have reported minimal gained vibration.
HP gain? Not enough to measure, notice, or be concerned with.
 
Vibration: Varies vehicle to vehicle depending on the type and condition of the motor mounts and roll stops. Some get alot, others can hardly notice a difference. Most have reported minimal gained vibration.

And almost all have been reported at idle or very low RPMs (such as when you start moving the car in 1st gear). Anything over that you won't notice a difference.
 
The AMS kit looks legitimate, but seeing as how this is my daily driver, I don't know if I want to let the car sit that long while I wait for shipping to happen. That, and 175 is a bit steep.....
 
Ok ok thanks do u kno if using the stub shaft from the kit and keeping the balance shaft in will give u the same problem
Using the stub shaft will eliminate the shaft that is driven by the oil pump, and the one driven by the belt can just be left in without the belt attached , I run it like this and don't have any problems
 
I left mine in. The more modification that is done to a vehicle with further complicate vehicle maintenance.

Seems like every post in this forum is "help my dsm won't run right" and then list off their modifications list. If you don't want to be a mechanic and cut your knuckles every weekend then keep it stock.


These cars are all nearly 20-25 years old now, I would never purchase a car because of a modifications list, however maintenance lists can really add value. I would not consider the balance shaft elimination kit preventative maintenance as it is a serious modification. Imagine trying to add the balance shaft belt system back onto a car to make it more presentable as stock if these cars ever become collectable LOL
 
Ideally, the balance shaft removal process would be good to do during a rebuild. For some reason, folks recommend it during a timing belt job. If you are replacing the timing belt, just replace the balance shaft belt too. This combined with proper maintainance, will have no issues.
 
Ideally, the balance shaft removal process would be good to do during a rebuild. For some reason, folks recommend it during a timing belt job. If you are replacing the timing belt, just replace the balance shaft belt too. This combined with proper maintainance, will have no issues.
I have the motor out and im resealing all the gaskets and putting new seals new timing belt, im using a stock motor exept for 272 cams and adjustable cam gears new fuel pump and regulartor and aem ems and a bigger turbo about 25 psi possibly meth injuection still debating it shooting for 400-500 hp do u think I shoud keep or delete balance shaft
 
Pro-status BSE kit for the deep pocketed DSMer:
AMS 4G63 Race Balance Shaft Eliminator Kit

Depending on labor rates, you can take your balance shaft to a machine shop and have it turned down similar to AMS's for about 3/4 - 1hr of labor.

this is what i did after seeing AMS' kit. took one of my balance shafts to a local machinist, had it turned down for about 35 bux. i have a couple spares to do the same thing too if i do another engine. if youve read about the ams setup, it helps support the oil pump gears. as far as being proven, theres not enough documented or closely regulated cases of the stub shaft causing oil pump failure, but from a logical and mechanical standpoint, i was sold.

175 is a little steep, but if you get the regular balance shaft kit, you just swap the stub shaft out for the turned down stock BS. maybe 50 bux total depending on where you get the kit.
 
Ideally, the balance shaft removal process would be good to do during a rebuild. For some reason, folks recommend it during a timing belt job. If you are replacing the timing belt, just replace the balance shaft belt too. This combined with proper maintainance, will have no issues.

I'm putting a new head and all new timing components in my car (2g auto TSI). Should I just replace the idler and balance shaft belt? Several have told me to delete the balance shaft. I'm worried... why would Mitsubishi put the time and money to put it in there in the first place?
 
I would just replace the balance shaft belt and balance belt tensioner. Save the balance shaft removal for when you build the bottom end.
 
Ive driven 350k miles combined on my dsms and 200k was the most on any single car. All had balance shafts and quality oils. My current car has them and will keep them. If I plan on turnig more than stock 7500rpm limit I may change my mind. Dont forget balance shafts spin at multiples of crank rpm. I will not delete shafts for the sake of deleting them unless forced to by damage. Take that opinion as you see fit.
 
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