Hello, I just had the HRC kit put in and now im trying to decide should I do a slip on pipe, like HMF or just leave it? Also thinking of a K&N filter system? I ride in the sand dunes in so-cal. Any comments appreciated, I just want the quad dialed in and don`t feel like messing with the jets all the time. Do you think the slip on and knn would be a benefit or not? Thanks If the jets are in the hrc that will fit that would be cool.

 

Do nothing else, the HRC kit is balanced and designed to work with each component.

Spend money on gear and riding, leave the motor alone now!

Oh, the HRC kit is a race kit. Be prepared to change pistons and rings at 15 hour intervals. Wrist pins at every other.

The HRC kit comes with a yellow manual. If the dealer did not give it to you, ask for it.

Yes, the HRC kit comes with a jet for the pipe, normal jet changes apply, but I suggest not messing with it.

Also, the kit has two set ups for baffles. Check, and if there is a piece bolted into the end of your baffle, that is the AMA diffuser.

Take it out and give it a try.

First, get the yellow manual that comes with the HRC kit and read it all.

We just installed one and the cam was off a tooth, bent the exhaust valves.

Fun stuff.

 

Wow, thats good stuff, 1-question, did you change air filters?

 

If you like to go fast put a pipe on it and if you like to ride leave it alone they run great with just a HRC kit

 

Only remove the stock airbox lid and the other mods t he HRC kit comes with. The stock air filter will flow plenty of air IMO, plus it truly filters.

Save you money for race gas - run 110 50/50 with pump gas (premium ideally).

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that is a good point because this motor does have 12to1 so I would run good gas in it

 

honda919rider, this is exactly what I wanted to hear, you saved me lots of$$$, this makes alot of sense and my mech agreed. how do you keep the filter clean? how about panty hose or the EHS racing lid? thanks for your replies. also what is good to use to clean the stock filter?

 

u dont need race gas in a 450r. you are throwing your money away using it and possibly loosing hp in the process.

 

I wouldnt go any lower than 92 because the motor is high comp and they dont have a oil cooler so they tend to run a little hot but not bad

 

they dont? did they remove it for 2006? b/c:

"The twin-sump lubrication system is unique in the fact that it helps ensure that the engine and transmission oil supplies do not contaminate one another. It also reduces the amount of circulating oil needed and the size of the oil pump. Ultimately, you end up with just an oil cooler - no external oil tank is needed."

im pretty sure mine's got one and the above text came from trx-450r.com. i'm pretty sure its on the honda site somewhere and has been metioned in all the reviews since its intro in 2004.