Balancer shaft delete = 10 bhp

cavaddict

Senior Member
Nope. Not sure if I'm making too much of this. When I'm off tickover, you can just feel a slight vibration sort of like driving over very fine cobbles if that makes sense.
 

snowy

Member
early x20xev's didn't have balancer shafts but the later ones did and a fancy inlet manifold to get the same power through the rev range as the early engines.
x20xer also didn't have the balancer's which helped them rev out and gain more bhp.
I will ask if they still have the graph from last time, if not I will go for another run.

I know this is an old post but it just irritated me enough to respond.

The fancy inlet as you describe it was fitted before the balancer shafts to provide different length inlet tracts to improve the mid range torque. Which it did. No power increase was achieved.

This new inlet had nothing to do with increasing power due to the balancer shafts that came much later and also depended on the car the engine was installed into. For example the omega got them but the mk3 astra or calibra didn't!
 

corsaZ22se

Senior Member
I know this is an old post but it just irritated me enough to respond.

The fancy inlet as you describe it was fitted before the balancer shafts to provide different length inlet tracts to improve the mid range torque. Which it did. No power increase was achieved.

This new inlet had nothing to do with increasing power due to the balancer shafts that came much later and also depended on the car the engine was installed into. For example the omega got them but the mk3 astra or calibra didn't!
that's what I said, early ones fit to cav's calibra's, and astra had no balancer shafts. the later engines did have and an inlet with flaps to increase midrange power this also helped to keep the later x20xev's with the same power as the early ones.
point is they don't need the balancer shafts. power gain with out them is minimal but the way the engine revs out with out them is improved.
 

Dolby

Member
I read the hole post. But what is the difference between stock engine en stock engine with the balancer removed?

Why people removing the balancer of the Z22se?
 

Dolby

Member
Only faster spin up of the engine?

Does speed up the car now also quicker in practice? En runs the engine smooth?
 
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