We cut this last night. Thinking of making domes for these heads. Now we know how much we have to work with.
Naked Blaster head
- Thread starter OConnor Racing
- Start date
I can understand the draw of being able to swap out domes but I'm not seeing the economic feasibility of being to exchange domes on a blaster engine.
Heads an Ebay are cheaper than domes and there's no advantage to having an o-ringed head on a blaster as there's no coolant.
Heads an Ebay are cheaper than domes and there's no advantage to having an o-ringed head on a blaster as there's no coolant.
I guess that's possible but how would cutting a stock, air cooled, head in half to see how much room there is to work with help with a liquid cooled head setup?
Maybe to see how much space there is in the combustion chamber so they could machine the dome properly. It would be much easier to measure it.
Either way, standard size domes are readily available currently. Why would you redesign the wheel and make a head that doesn't use "standard" size domes?
I'm not hating the idea of a domed head (for instance, for people who want to run combo pump race gas engines) but I think it makes a LOT more sense for liquid cooled engines that use o-rings, need to seal compression in and coolant out, and heads are MUCH more expensive than the blaster heads.
I've toyed with the idea of cutting another head for my engine, one that could be used reliably with E85 (and all the funkies that come with it) so I could run a REALLY "hot" setup but I don't think I'd go through the trouble to get a domed head made to do it.... I'd just have two heads I could swap out...
^^^ Not fair keeping all the head to yourself!
Come on Ken, we want some head too!
I think the chamber in the HEAD is too deep. We're going to try a bunch of stuff over the summer and see how it works. Take a look at a stock Blaster head and then an LA Sleeve head or any other modern motocross bike. Yamaha left some HP on the table.
GOD told Adam, I have good news and bad. Good news is I gave you two heads. Bad news is I only gave you enough blood to use one at a time 
Back to topic tho. You going fill us in Ken? I:I
Back to topic tho. You going fill us in Ken? I:I
So too much aluminum up there draws too much heat off the flame? Or the distance between the spark plug end and the beginning of the "step" for the squish band is too tall?
If it's too deep a dish, can't you just cut the squish area down into the head deeper. At some point, you'll need to remove some of the bottom head fin area to keep it from hitting the top cooling fin on the cylinder but it would alleviate the issue of combustion chamber depth.
If it's too deep a dish, can't you just cut the squish area down into the head deeper. At some point, you'll need to remove some of the bottom head fin area to keep it from hitting the top cooling fin on the cylinder but it would alleviate the issue of combustion chamber depth.
Similar threads
