OZ ATV :: The Australian ATV Forum

[123boath]

what does everyone think off them pro design coolheads and noss coolheads? im thinking about getting 1 with the higher compression domes? has any1 that used them had any troubles like engine running to hot from the high comnpression? and also do u needa change anything wen u run the 17cc domes like getting a bigger radiator?

any help would be appreciated cheers.

[Quad]

17cc to low try 21 and be safe. The coolhead good choice.

The large rad is a good thing as well. keeps it all cooler.

good luck with this project.
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Im not the sharpest tool in the shed

[123boath]

ah k, theres 1 for sale atm with 19cc domes. to low?

ive found a aluminium radiator on ebay that holds 30% more coolant. deciding wether 2 buy or not.

[doorslammer]

get a noss head. few reasons.

1 they use standard headstuds, still give you great cooling and apparently their domes are better desigened?

4stroker on here ran a banshee with 19cc domes on 98oct and never had any problems. where as i've head of 19cc pro design domes pre detonation on pump fuel. i havent done any research or testing on this but its very interesting.

i use a pro design head for the only reason that noss dont make one for the rz motor. and have ordered some 19cc noss domes for it to give it a bit more of a kick down low.
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01 Banshee
Never take life seriously. Nobody gets out alive anyway

[123boath]

i rekon ill get 1 with the 19cc domes and also get the larger radiator just to be on the safe side.
another question, my head has been shaved 30thou would i c much of a difference between that and a coolhead with 19cc domes?

[banshee_jaquesy]

i run 21cc pro design domes, and the pro design cool head. people say they have tested them and the noss can run 19's but the pro can't, how can that happen?? it must be a lower compression on the noss domes?? whatever the reason, i dont know. i like the pro design head better, looks better and has more surface area, so it would run cooler. i have a fair bit of work done to my banshee and i run the standard radiator, and standard impeller in the water pump, and mine never overheats, even in this wheather!!


jaquesy.
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2000 YAMAHA BANSHEE.

[doorslammer]

banshee_jaquesy wrote:

i run 21cc pro design domes, and the pro design cool head. people say they have tested them and the noss can run 19's but the pro can't, how can that happen?? it must be a lower compression on the noss domes?? whatever the reason, i dont know. i like the pro design head better, looks better and has more surface area, so it would run cooler. i have a fair bit of work done to my banshee and i run the standard radiator, and standard impeller in the water pump, and mine never overheats, even in this wheather!! jaquesy.

the way the domes are cut, the way the squish band is cut, the tolaraces and quaility control by each company.

and just because on head has more serface area doesnt mean it will run cooler. a radiator that holds more coolant might not cool as well as a radiator that is better designed.
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01 Banshee
Never take life seriously. Nobody gets out alive anyway

[dangerman4]

123boath wrote:

ah k, theres 1 for sale atm with 19cc domes. to low? ive found a aluminium radiator on ebay that holds 30% more coolant. deciding wether 2 buy or not.

what sort of price are they asking for the new radiator?
and what brand is it?

[Clarkie]

Ive got a Noss head and run 19cc domes, dont have detonation probs or cooling issues, mates got a cool head and the noss looks better when side by side. It has larger water capacity in the head chamber and a better flow pattern than the cool head. Only issue is no one stocks oring for Noss heads in Aus, had to get from USA, still cheaper than cool head oring kits here and got em in 5 days
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Has turned to the Dark Side!

[1sick6]

http://cgi.ebay.com.au/banshee-YFZ-350-oversized-full-aluminum-radiator_W0QQitemZ300364851813QQcmdZViewItemQQptZAU_Motorcycle_Parts_Accessories?hash=item45ef23ea65
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He Who Dies With The Most Toys, Wins

[4stroker]

Clarkie wrote:

Ive got a Noss head and run 19cc domes, dont have detonation probs or cooling issues, mates got a cool head and the noss looks better when side by side. It has larger water capacity in the head chamber and a better flow pattern than the cool head. Only issue is no one stocks oring for Noss heads in Aus, had to get from USA, still cheaper than cool head oring kits here and got em in 5 days

arent the noss and pro design o-rings interchangeable? i know the domes are, coz i had noss domes in my pro design head on my rz so i just assumed the o rings were too...

its not just compression that determines the quality of fuel you need to run, its also MSV (mean squish velocity) which is determined by squish angle, band width and depth..

jaquesy if you ever want a bit more comp and still run pump fuel just get some 19cc noss domes for your PD head, they only $65 us...

the noss domes have been designed properly using combustion chamber design software specifically for the banshee.

the pd domes are most probably just some generic design dreamt up by a cnc operator.
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2002 SE Banshee