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jlrenken
10-25-2010, 08:52 AM
im looking to get some head work done and was wondering if anyone knows of a good motor builder in the northwest ia area. or just a good builder all around.
thanks
Ruf Racing
10-25-2010, 10:26 AM
Call Dave at HRE. http://www.hungracingengines.com/services.html

He's in Kansas City.
quad9
10-25-2010, 12:04 PM
ron hamp
jlrenken
10-25-2010, 03:11 PM
can u expand on ron hamp. number location ext.
thanks
eastside 400
10-25-2010, 03:57 PM
Check out Moto-Xperts, Toby does great work and is a great guy to deal with.
JJs450r
10-25-2010, 05:57 PM
spend a little extra on shipping and send to drg
Jason Hall
10-25-2010, 07:49 PM
Ron Hamp Is Very well known on Thumper Talk! He Is Very smart, and has been making big power for quite a few years. I talked with him a couple time's on the phone, when he cut the seat's In my CRF450 head.

http://www.ronhamp.com/
OutlawEX
10-27-2010, 12:03 PM
RAGE

Rage ATV Racing
27407 Midline Road
Cleveland, TX 77327
281-593-2481
quad9
10-27-2010, 12:08 PM
Originally posted by jlrenken
can u expand on ron hamp. number location ext.
thanks

http://ronhamp.com/
Balaz_73*00
10-27-2010, 12:10 PM
Moto-xperts

www.moto-xperts.com
EASTHILL
10-29-2010, 09:24 AM
In most cases from what i understand,
valve wear is a direct result of improper air filtration.

There is no reason why a stock head can't last several seasons without a re-do.
Its not critical to upgrade your head with expensive components.

Its the dust that gets thru the filter that is causing the wear to the seats and valves.

Using a better oil is your best bet.

stock honda filter oil(no toil) is not tacky enough for the demands of xc racing.
Not many oils avaiible today are.

Use maxxima on a stock filter and cage for the best protection.

You will find that valve clearances will stay in spec much longer.

a dirty filter coated with maxxima oil offers more protection to your motor than a clean one.
eastside 400
10-29-2010, 03:42 PM
dust will cause premature valve wear but the 06+ honda's with the Ti intake valves have problems no matter hot clean you keep the filter. the honda's dont have the right seat material for use with a Ti valve. put copper seats with the Ti valves and it will last a long time
SixRB6
10-30-2010, 06:46 PM
ROSSIER

PERIOD
JJs450r
10-31-2010, 06:43 AM
drg http://www.chad502ex.com/index_files/porting.htm

he on here to as well
BUBBA Livesay
10-31-2010, 02:36 PM
I have motoxperts head on mine and it seems to have good power, but I will not send anything back to them EVER because of there POOR customer service (If your not a big named rider they seem to put your work off until they "get time to do it")

My bud had a Rossier on his and it was supposedly WICKED MEAN!!

But i think as long as you go with a reputable named place its all good! Just my .02 cents worth.

Or you can buy ya a dremmel and give it a shot?? lol :D
Dave400ex
10-31-2010, 05:01 PM
There are several good ones listed. I've had great luck with MXP. One that I'm surprised isn't listed is Baldwin.
11-02-2010, 06:10 PM
rage atv all the way you cannot beat there price right now on there recreational porting serivce, they ALWAYS answer the phone and the turnaround time is fast like the bike will be ive had several heads done by dee and everyone has been more than i expected and as crazy as it sounds he can actually tune the head to the kind of power you like
Butter
11-02-2010, 07:44 PM
Originally posted by Ridetrpdotcom
rage atv all the way you cannot beat there price right now on there recreational porting serivce, they ALWAYS answer the phone and the turnaround time is fast like the bike will be ive had several heads done by dee and everyone has been more than i expected and as crazy as it sounds he can actually tune the head to the kind of power you like

X2!! Dee does some awesome work!!