84 ZN1100 Cylinder Head Upgrade?

That head looks to be a real beauty!  Those intake ports look massive!  Don't like the look of those exhaust studs though.  It's not the look per se, it's the corrosion.  Best use a liberal dose of anti seize on those threads.

wrote:

That head looks to be a real beauty!  Those intake ports look massive!  Don't like the look of those exhaust studs though.  It's not the look per se, it's the corrosion.  Best use a liberal dose of anti seize on those threads.
 

For the price it seems like a really nice job was done on the porting and valve job, and the guy was easy to work with.  He claims thirty years of experience, which is evident.  The new  power sensation is undeniable.
It feels like the engine is leading the transmission for a change, and the gears shift with a simple click.  Can't recall that happenening much with consistency before.
The exhaust fasteners are stainless flange nuts.  They came off easily with little effort.  I applied a coat of engine oil on the stud threads before reinstalling the nuts.

At what RPM does the power come on now?
Steve

wrote:

At what RPM does the power come on now?
Steve






 

Pulls way-way stronger everywhere, but from 6-9K and doesn't skip a beat...oli-sh*t man!  Sings beautifully at 8K
And the sound:  oh-oh -oh , the sound is mind blowing.  !!!~!!~!~ ~!~!!~!!

wrote:

wrote:

At what RPM does the power come on now?
Steve


 

Pulls way-way stronger everywhere, but from 6-9K and doesn't skip a beat...oli-sh*t man!  Sings beautifully at 8K 
And the sound:  oh-oh -oh , the sound is mind blowing.  !!!~!!~!~

~!~!!~!!

I know that sound, it makes me all tingly in the loins.....

wrote:

wrote:

wrote:

At what RPM does the power come on now?
Steve




 

Pulls way-way stronger everywhere, but from 6-9K and doesn't skip a beat...oli-sh*t man!  Sings beautifully at 8K 
And the sound:  oh-oh -oh , the sound is mind blowing.  !!!~!!~!~

~!~!!~!!

I know that sound, it makes me all tingly in the loins.....

 

Yes, indeed! 

It is a beautiful thing.



P.S.  It's loud, and that's with the stock baffle wrapped and packed solid.  With the 2160 baffle, it's "good morning everybody" a half mile away, regardless the time of day.

Before it would come on stronger at 7k and peak at 8.5k then pull the same after that. Now it starts at 6k and peaks at 9k and keeps pulling to 11k where I shut it off for the next gear. 
Steve

wrote:

Before it would come on stronger at 7k and peak at 8.5k then pull the same after that. Now it starts at 6k and peaks at 9k and keeps pulling to 11k where I shut it off for the next gear. 

Steve
 

This old girl's engine feels like it could handle that, but the Dyna 2K limiter is set at 9500 for my sanity sake. 
I always try to "ride the piss out of it" nicely, but fail miserably for the most part. 



.

wrote:

wrote:

Before it would come on stronger at 7k and peak at 8.5k then pull the same after that. Now it starts at 6k and peaks at 9k and keeps pulling to 11k where I shut it off for the next gear. 

Steve

 

This old girl's engine feels like it could handle that, but the Dyna 2K limiter is set at 9500 for my sanity sake. 

I always try to "ride the piss out of it" nicely, but fail miserably for the most part. 

.

Its hard to ride the piss out of any 1100 really, especially a tough one,  you run out of room real fast and accidents happen far quicker....!!!

wrote:

wrote:

wrote:

Before it would come on stronger at 7k and peak at 8.5k then pull the same after that. Now it starts at 6k and peaks at 9k and keeps pulling to 11k where I shut it off for the next gear. 

Steve


 

This old girl's engine feels like it could handle that, but the Dyna 2K limiter is set at 9500 for my sanity sake. 

I always try to "ride the piss out of it" nicely, but fail miserably for the most part. 

.

Its hard to ride the piss out of any 1100 really, especially a tough one,  you run out of room real fast and accidents happen far quicker....!!!
 

Gotta maintain wits, and avoid peripheral distractions.  I've also learned to NOT put the side-stand down before coming to a complete stop, among other things.

wrote:

That head looks to be a real beauty!  Those intake ports look massive!  Don't like the look of those exhaust studs though.  It's not the look per se, it's the corrosion.  Best use a liberal dose of anti seize on those threads. 

Intake runners were opened up some and smoothed out to meet the stock 34mm port openings.  The exhaust side received the same treatment.

Image below when purchased in 2015:
 

Images (2) below 11/27/2021:




Relevant head information per Cavanaugh Racing below:




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Jetting starts here in the Spring