Banshee Eh? Posted March 10, 2007 Report Share Posted March 10, 2007 Hello all i have a banshee with pro circut platnum pipes and boysen rad valves with a stock motor and was wondering if a noss head with 21 or 22 cc domes would help get me much more power and how much more power i could possibly expect to get and if it would perform good with the pipes and the reed valves. I was also wondering if there is a majior disadvantage to having a head with domes as compared to the stock head which is one piece i believe? Thanks for the advice! Quote Link to comment Share on other sites More sharing options...
scooter Posted March 10, 2007 Report Share Posted March 10, 2007 from my experiance i would say its a great mod i have the 20cc domes in mine. i also put in a ricky stator adjustable timing plate advanced 4 degres at the same time and it made a big difference but since i did both mods at the same time i cant tell you whitch one made the most gain by itself. my engine is stock also i have t6s v force3s and k+ n pod filters, i also added a stainless water pump impeller and my bike runs much cooler too. Quote Link to comment Share on other sites More sharing options...
Banshee Eh? Posted March 10, 2007 Author Report Share Posted March 10, 2007 anyone know what kind of compression i should be shooting for? Is there a downside to having a higher compression? Quote Link to comment Share on other sites More sharing options...
DIRTMAN350 Posted March 10, 2007 Report Share Posted March 10, 2007 bump Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted March 10, 2007 Report Share Posted March 10, 2007 anyone know what kind of compression i should be shooting for? Is there a downside to having a higher compression? The more compression you run the more you risk forcing your crank apart. I'd stick under 155psi if you want to run pump gas. Anything higher than that and you will want to be running a 50/50 mix of race gas or straight race gas. More compression will give you more bottom end, but will also make your engine rev slower to an extent. The crank/piston has to do more work to compress your fuel/air mixture on every stroke... Quote Link to comment Share on other sites More sharing options...
FireHead Posted March 10, 2007 Report Share Posted March 10, 2007 I would look put a cool head on stock motor simply for the added cooling benefit. What domes that you run is a seperate issue. :geek: Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted March 10, 2007 Report Share Posted March 10, 2007 Like Jared said, the only real downsides are the added risk of crank failure on an unwelded crank and the added cost of fuel if you need to run race. I run straight race gas in mine due to the head and timing advance, which can make outings pretty expensive, but you won't be disappointed by the added grunt you get from that NOSS head. Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted March 10, 2007 Report Share Posted March 10, 2007 How do you know which NOSS head you have? My shee came with it and id like to know if it's a 20cc 22cc dome etc Quote Link to comment Share on other sites More sharing options...
dajogejr Posted March 10, 2007 Report Share Posted March 10, 2007 I would look put a cool head on stock motor simply for the added cooling benefit. What domes that you run is a seperate issue. :geek: Mark... I have read debate after debate about which cools better...not in theory, but in actuality. Some will say it doesn't matter, etc. I have a NOSS head mainly because it looks nice, and I trust O Rings better than a gasket. The water jackets are such on a cub to where cooling really shouldn't be a problem. That being said....do you have any proof of one head cooling better than a stock head? Just curious.... Quote Link to comment Share on other sites More sharing options...
dajogejr Posted March 10, 2007 Report Share Posted March 10, 2007 How do you know which NOSS head you have? My shee came with it and id like to know if it's a 20cc 22cc dome etc PUll the head off, the size is stamped in the side of the dome. Quote Link to comment Share on other sites More sharing options...
87sheerips Posted March 10, 2007 Report Share Posted March 10, 2007 Im runnin 20cc domes on pump gas. Although I just bumped the timing +4, so im running 50/50 until i see what my compression is. :thumbsup: Quote Link to comment Share on other sites More sharing options...
brugal Posted March 10, 2007 Report Share Posted March 10, 2007 Coolhaeds are supposed to make your bike run cooler.They dont add any horsepower to my knowledge.Most people get them for the interchangeable domes and the Orings. And yes ,you can put them on a stock motor,but you would be better off with the timming plate cause you will feel the difference,Ricky Stator has them for the low. Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted March 10, 2007 Report Share Posted March 10, 2007 Coolhaeds are supposed to make your bike run cooler.They dont add any horsepower to my knowledge.Most people get them for the interchangeable domes and the Orings.And yes ,you can put them on a stock motor,but you would be better off with the timming plate cause you will feel the difference,Ricky Stator has them for the low. Well first, heat (or reduction in this case) is horsepower. If it runs cooler it will make more power. Second, if you run domes that are smaller than the stock chambered head you will increase horsepower due to the added compression. Quote Link to comment Share on other sites More sharing options...
brugal Posted March 10, 2007 Report Share Posted March 10, 2007 That is almost an untrue statement as the previous one in this thread. To address the first MORONIC statement, that is both hilarious, and very idiotic at the same time. I find it more funny than anything!!!!!! On this new statement, a "cool-head" may not make your bike run cooler. I have heard claims of up to 10% better cooling, but I have seen no proof. Do NOT get me wrong on this. I will be getting a NOSS head soon enough, but only because of the dome interchangeability of it. Not for any other reason. As a matter of fact, there are 3 reasons that aftermarket "cool head" is good. 1. For interchanging domes at a cheap price. 2. For being able to pull the head off and re-install it with the same o-rings. Essentialy, a re-useable head "gasket". 3. looks. That's about it folks. Now, I will say this to those that will jump in here and flame away on this. Go ahead and provide proof to me and the rest of the HQ that there is a cool head that makes the bike any more than 5-10% cooler. I doubt that there is even a gain in 10% or less. The head may be able to transfer heat slightly better than a stocker just due to the surface area exposed to outside air. Not the coolant flowing within, but just the physical area outside in the open. This is a possibility, but not a very good case. Now, Once again, I will re-iterate here. I am not against the cool-head. Just stating some other things here. Show me the proof that it runs cooler. I want it. PLEASE DON'T take this the wrong way folks. it is a discussion. Not a flame war. i have to agree with boon, i never noticed a large temp difference, but it is nice to change domes and not gaskets as well as they look nice..... The person that wrote this I believe lightened your flywheel 2003 limited banshee.plus bumping up the comp. adds heat,which would offset the 5%heat reduction. Quote Link to comment Share on other sites More sharing options...
FireHead Posted March 10, 2007 Report Share Posted March 10, 2007 Mark...I have read debate after debate about which cools better...not in theory, but in actuality. Some will say it doesn't matter, etc. I have a NOSS head mainly because it looks nice, and I trust O Rings better than a gasket. The water jackets are such on a cub to where cooling really shouldn't be a problem. That being said....do you have any proof of one head cooling better than a stock head? Just curious.... I have proof that a Pro Design (I think Noss heads are a bit different with respect to coolant passages) cool head has less of a coolant pressure delta than a stock head. That's about it. Otherwise, my statement is based off of my shitty memory of what I have seen with thermocouples on the dyno. :geek: Quote Link to comment Share on other sites More sharing options...
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