do eney of you have cool head on your lt's becouse i am thinking of getting theme how good are they, do they give you alot of power

 

What year is your QZ? I have one that will fit an '87 with a 54cc dome I'll sell ya!
PM me if interested.

 

Dunnaddict
I'm looking for a collhead I have a 87 lt250r Can you still run pump gas on a 54cc dome?
E-mail me and let me know how much. mth@motionsavers-inc.com
Thanks.

 

Sorry stroker... the head I have will fit the 500 QZ, not a 250... Wish I could help ya!
Yes, the 54cc will require a higher octane fuel.

 

Dune,
what compression would a 54cc dome make? i have an '87 cylinder and i am looking for a cool head myself...what kind of shape is it in and who is the manufacturer? is it 0-ringed, etc...?

thanks,
brandon

 

TXDS, The compression depends on many variables. The biggest being your elevation/altitude and air density. Secondly if your motor has been ported, the trapped volume is often altered, thus making the answer even more difficult.

So... that being said, I can only tell you what it did for mine. At 7,000 ft above sea level with a 2mm raised exhaust port, I saw around 130# static compression.
Keep in mind, the higher the elevation, the thinner the air... You could expect a pretty decent gain being in TX... How much? I don't know. For reference, (If memory serves me correctly) the stock head is 62cc's.. I'm sure someone else will correct me if I'm off on that one.

I wouldn't recommend exceeding 180-185# static compression.

The brand is Pro-design 'cool head', it's brand new, only ran about 3 rides. It uses a stock head gasket, but can have grooves machined for O-rings (Which will increase compression further)

Let me know if your interested.

 

Duneaddict, I didn't know you were at 7000'. Man, thats got to suck the power out. No wonder you don't like thumpers. My new one is borderline fun at 500'. I wouldn't be able to stand it at 7000'.

 

AMEN HL!!! I need a turbo at this elevation!!! I'm in heaven when I go to 4K feet and feel all that free power!
The thumpers really suck wind up here...