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Posted (edited)

I have FMF Fatty's with T-5 silencers, V-force 2's, K&N ProFlow with open lid. I ride at sealevel. I want to still run pump gas. With pump gas domes, is it worth spending the money? Will there be a significant HP increase?

Edited by NYCBanshee7
Posted

you can bump your compression up to 155 or 160 and be safe with pump gas and still add enough extra umph to accomplish what you want. You could just mill your head for a cheaper alternative, but you won't have the added cooling benefits.

 

Your decision to make.

Posted

have your head shaved and run engine ice in it. its a much cheaper alternative to buying the expensive aftermarket head setup. they can change the dome size on your stock head to whatever you want. have them put 20's in there and you should be fine. I had them put 19's in mine and love them. good luck.

Posted

Those heads are nice but if you want to stick to pump gas and are not having cooling problems just have your stock one modified. You can have up to .030 taken off without the need to recut your domes. I had .025 taken off of mine and could not keep the front tires on the dirt when I got traction. It only cost about 30 bucks or if you have the right equipment you can do it for free.

Posted

If you have your stock head milled, particularly by someone who doesn't do it a lot, it's a good idea to check your squish clearance when you reinstall it.

Posted

I'm about to get a Trinity modified head from someone for $80. If I have cooling problems I'll just switch to Engine Ice... actually I'll probably do that regardless after hearing how great it works. An aftermarket head would definately be the best option, but it ain't cheap. I think Noss has the cheapest.

Posted

Perpetual cooling problems are often signs of other things... like lean jetting (which I think is most common) or a bad impeller or clogged rad or something. It's not normal for a banshee to just run hot all the time. So, people, if it's running hot a lot, especially in the winter, start looking for other things or kiss your motor good bye.

(Not directed at you specifically KRMit, just info for all)

Posted

The added cooling benefits are like pissing in the wind. Getting a coolhead and thinking it's going to solve your cooling problems would be the equivalent of throwing 3 extra ice cubes in the cooler and thinking your gonna freeze your beer. :rolleyes: The added "benefits" are pretty hyped up. While noone can deny that the aftermarket head will cool better than a stock head, the debate lies in the dollar for dollar mod. It's much more of a need to be able to change domes, and not have to get a new head gasket every time you pull the head. I have run heads that have ben cut up to .050", (on race fuel of course, because the squish was less than desirable) and have NEVER had a problem with cooling. I run a completely stock cooling system. Stock radiator,impellar, shit, stock hoses. Not once. 90+ degrees out, and trail riding. THrough the mud, 1,2 gear riding. Not one problem. If you don't wanna spend the $, are tight on cash, or don't need to change domes, if you aren't into the motor every other week, than you don't need one. Your wasting your $$$. BUT, if you do ned a head, or you want one, than get a NOSS head. PHENOMINAL product from the ones that i have seen. David is a helluva guy, and you will not have one lick of trouble. If you don't need an aftermarket head, get yours shaved at a local machine shop.

Posted

I'd get a head, no doubt. Dave knows his shit and can help give you the type of curve your looking for....I know he helped Fixitrod and I tremendously on our strokers. Both of our shees run completely different w/ his head over our stock heads....even w/ the same compression....Our squish is spot on along w/ the compression we desired. Thanks again DAVE!!!!

Posted
The added cooling benefits are like pissing in the wind. Getting a coolhead and thinking it's going to solve your cooling problems would be the equivalent of throwing 3 extra ice cubes in the cooler and thinking your gonna freeze your beer.  :rolleyes:  The added "benefits" are pretty hyped up.  While noone can deny that the aftermarket head will cool better than a stock head, the debate lies in the dollar for dollar mod.  It's much more of a need to be able to change domes, and not have to get a new head gasket every time you pull the head.  I have run heads that have ben cut up to .050", (on race fuel of course, because the squish was less than desirable) and have NEVER had a problem with cooling. I run a completely stock cooling system.  Stock radiator,impellar, shit, stock hoses.  Not once.  90+ degrees out, and trail riding.  THrough the mud, 1,2 gear riding.  Not one problem.  If you don't wanna spend the $, are tight on cash, or don't need to change domes, if you aren't into the motor every other week, than you don't need one.  Your wasting your $$$.  BUT, if you do ned a head, or you want one, than get a NOSS head.  PHENOMINAL product from the ones that i have seen.  David is a helluva guy, and you will not have one lick of trouble.  If you don't need an aftermarket head, get yours shaved at a local machine shop.

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I definately agree. My friend and I were just talking about this subject. No doubt the aftermarket head will cool a little better. but look at it like this> you spend $50.00 on getting your stock head milled. That still leaves you with say...$200.00. Thats $200.00 you could spend on advancing your timing, lightening the flywheel...you get what I'm saying. That doesnt mean I wont ever run a aftermarket head, its just a matter of the fund$

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