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Posted (edited)

I just bought a Noss Machine cylinder head for my 99 banshee. I called them and they said that I wont need to use a head gasket with this head. So now I am wondering how can those o rings take the heat and cylinder pressure that will be put on them and last. And has anyone had any problems with them so far as reliability. Im sure they will work fine I just wanted someone's opinion on them.

Edited by FMS50
Posted

I just bought a Noss Machine cylinder head for my 99 banshee. I called them and they said that I wont need to use a head gasket with this head. So now I am wondering how can those o rings take the heat and cylinder pressure that will be put on them and last. And has anyone had any problems with them so far as reliability.

They work fine. Many modern 2 strokes use orings for head gaskets.The noss head is one of the best mods you can do.

Posted

i have a pro design cool head and it uses o rings i have it on for over 3 yrs with no problems.i would have bought a noos head if i knew about this place before i got the pro design

Posted

They work very well, use alittle bit of grease on your o rings when you put it together, the grease helps hold the orings in place until it is bolted up...

Posted

What size domes are you going to run.And whats your elevation.

 

 

The domes are 18cc and I dont know the elevation but the bike will be at Glamis most of the time.

Posted (edited)

The domes are 18cc and I dont know the elevation but the bike will be at Glamis most of the time.

You need to find out the elevation unless its really high you will most likely need race fuel with 18s.Im running 18s at 900ft and im rite around 180 psi.I run 111 octane.If you run this high of compression you will see big gains in lowrange with instant thortle response.

Edited by RILS
Posted

Anyone know were the 10 brass washers that came with this head go. Im assuming between the head and the head nuts but im not sure and the instructions dont say.

Posted

Anyone know were the 10 brass washers that came with this head go. Im assuming between the head and the head nuts but im not sure and the instructions dont say.

that's where i put mine, i'm sure that's right. not being a smart ass, but where else would they go? :shrug:

Posted

This may be an amature question but what are the domes for? I ride at 3000ft, so what domes would I need?

the domes basically reduce the space inside the cylinder, which creates greater compression.

 

check out the chart on the bottom of this link's page

http://www.nossmachine.com/banshee_heads.htm

Posted

This may be an amature question but what are the domes for? I ride at 3000ft, so what domes would I need?

Depends on what type of fuel you want to run.For 93 octane and below stay below 150 psi use the chart to determine.

Posted
The domes are 18cc and I dont know the elevation but the bike will be at Glamis most of the time.

 

I don't remember.....You are going to run race gas aren't you? Is your crank welded?

 

-David

Posted (edited)

I don't remember.....You are going to run race gas aren't you? Is your crank welded?

 

-David

 

 

The head is on and the bike runs great and no leaks. Im just waiting for it to cool down so I can retorque it again. I am going to run race gas and no the crank is not welded. Do you think that will be a problem. I also added a PWR radaitor to try and keep the temp down.

Edited by FMS50

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