Limits of stock 1nzfe found once and for all.

[TURBO YARIS]

Originally Posted by why?

balancing a four cylinder engine is just a waste. Your info really is only good for massive engines or older ones.

Modern engines come off the line almost perfectly specced, and aftermarket companies can now have all the same equipment and ability that the manufacturers have.

This isn't the 60's anymore. There are a lot of things people did as a a matter of course on those cars that is totally useless on ours.

Any and every engine not mater how many cylinders, configuration or size will benefit from having its rotating assembly balance. If the factory piston and rod weight 100 grams together & you replace it with an aftermarket piston & rod which is either lighter (75 grams) or heavier (125 grams) the factory balance is gone. And yes it isnt the 60's, so why wouldnt you do a process to engine that is done by every professional engine builder and has proven result time & time again? BTW my weight #'s are just examples. Im well aware that the factory pistons & rods are lighter than a set of CP's & Pauter.

[TURBO YARIS]

Originally Posted by why?

balancing a four cylinder engine is just a waste. Your info really is only good for massive engines or older ones.

Modern engines come off the line almost perfectly specced, and aftermarket companies can now have all the same equipment and ability that the manufacturers have.

This isn't the 60's anymore. There are a lot of things people did as a a matter of course on those cars that is totally useless on ours.

In my shop right now. I build engines everyday. Im not a flake internet tough guy. I know what Im saying is a fact. If you guys keep on thinking like this you will never evolve........

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[TURBO YARIS]

Originally Posted by why?

balancing a four cylinder engine is just a waste. Your info really is only good for massive engines or older ones.

Modern engines come off the line almost perfectly specced, and aftermarket companies can now have all the same equipment and ability that the manufacturers have.

This isn't the 60's anymore. There are a lot of things people did as a a matter of course on those cars that is totally useless on ours.

I wonder what Colin Chapman would respond to you if he read the above statement.......

[Blown_xa]

Yea mine is balanced. The 1nzfe shortblock we offer comes balanced... I can't compare a non balanced motor because every one we assemble is. The machine shop who handles our motors includes balancing the rotation assembly in the process. Rods come back numbered for specific assembly order. My built motor has over 40k on it now ( not easy miles , trust me).... is it because it is balanced ? I couldnt say

[TURBO YARIS]

Blown: Im not surprised @ all that your motors is balanced. There is absolutely no logical reason not to. The next thing you know someone is going to say that blueprinting is a waste on 4 cylinder........

[cali yaris]

I never said don't do it, or that's it's a bad idea, or that it won't make power.

Now I'm going to have to ask and find out if, after all that, they balanced mine too. I didn't think so.

[TURBO YARIS]

At no time did I claim you said " don't do it, or that's it's a bad idea, or that it won't make power" so I dont understand why you would need to defend a statement you never said.

Weather or not it was done to your motor or Blowns motor is not the issue here. The issue is how can anyone say this:

"balancing a four cylinder engine is just a waste"

or

"but Inline engines dont inflict the type of counteracting forces on the crank that the V styles engines do."

[cali yaris]

^ ok.

[pimp my yaris]

Yes, Im sure if your building V8 funny cars balancing the rotating assem. is far more critical.

[fnkngrv]

I wantesdto really say something here, but since the owner of YW is too effin cheap to provide a solid mobile solution I have put in too much effort here just to type this!

[cali yaris]

Is it time for a Thread Summary?

Reading again, I don't see that there's much of an argument in here.

[thefalls]

Just to chime in,i know many people with 4efte forged engines that have not been balanced and doing fine. This doesnt mean that you shouldnt do it but just to show that it may not be necessary.

I have been told that if you dont go above stock redline then you can get away with it.

[TURBO YARIS]

Originally Posted by pimp my yaris

Yes, Im sure if your building V8 funny cars balancing the rotating assem. is far more critical.

I could only wish I was building NHRA funny cars, but actually the red and green cars are Pro Mods & the blue is a Top Sportsman.

[Golddeenoh]

Originally Posted by pimp my yaris

Yes, ...if your building V8 funny cars...

V8 funny cars!!, there is nothing funny about a blown V8, unless you have an xA that beats them.

[TURBO YARIS]

Originally Posted by Golddeenoh

V8 funny cars!!, there is nothing funny about a blown V8, unless you have an Xa that beats them.

That will be the day!

[why?]

Originally Posted by TURBO YARIS

I wonder what Colin Chapman would respond to you if he read the above statement.......

Colin Chapman also never drove a car he built. I wonder why, Nor did he ever build street legal vehicles.

There is a gigantic difference between a leave no stones unturned spend every penny possible race car and a street car.

If I was going to put $40k into an engine of course I'd balance it. It would be dumb not to.

But if you are trying to get people who spend a few grand on a turbo kit, tune it themselves, and maybe spend a few hours with a professional tuner to make a $13k car hit 130-150hp, I just don't see the point. Unless you are going to tell me you'd charge someone a flat rate of two or three hundred dollars to do it, I don't see the need for it on a street car or even a car that is auto crossed on a local level.

And yes, on a big block from the 60's it would be worth it, as it would probably make more power. As Dent guy mentioned, if it isn't necessary on a high powered Supra, I doubt it would be necessary on a street driven Yaris.

[fnkngrv]

Brian...hit me up on the phone if you wanna discuss anything further on your build bud. You know I am interested...I am over this thread. No offense.

[cali yaris]

Do you see the point if they intend to push it to 250-300? Because that's what's up on this build.

Let's just leave it alone, guys and enjoy the hell out of pimp's build.

spend a few grand on a turbo kit, tune it themselves, and maybe spend a few hours with a professional tuner to make a $13k car hit 130-150hp, I just don't see the point.