400ex/XR400 HRC Cam

[ajr400ex]

Does anyone know the part number for the HRC cam? It is time to add a little power to the 400.:devil:

[hellracer]

14000-NKK-000 please:D

[brandonpeake]

does it give noticeable power over the xr400 cam ?
is it low or a top end cam?
just curious it cost over double what the xr400 cam does

[y2k400ex]

Racing my 416 against my friends 416 with an xr400 cam I can take him off the like and have at least a 5 quad length lead.

The HRC is a mid to top end cam and it hits hard. I'm very pleased with the performance. I have lost NO low end at all; it’s hard to keep the front end down even with my bald stock tires.
The grind is similar to the hot cams stage 2 but with no loss of low end. I think is well worth the money and also it’s a FACTORY Honda part :D :D :D

On my friends 416 with the xr400 cam it has tons of low to mid range and about the same top end as stock. It just doesn’t compare at all to my HRC :devil:

[tnine416]

where can you get a hrc cam and how much

[y2k400ex]

I like dealing with Service honda it was $275
http://www.servicehonda.com

[tnine416]

cool, thanx for the link man

[brandonpeake]

anyone use the cam for xc or trail riding

[y2k400ex]

All i ride is XC and trails in the Ocala Nationa Forest

[brandonpeake]

thanks for the info

[JD400exrider]

Originally posted by brandonpeake
anyone use the cam for xc or trail riding

I run the same cam and ride allot of woods. I aggree with y2k. It is well worth the money. Great Cam

[jedman]

I am a new guy looking for some power. I was wondering if you needed to have anything hardened or modified for the #14000-NKK-000 cam. I have just a WB exhaust and Dynojet stage 2. Do I need a new piston or anything to go with the cam? I was trying to stay away from getting a bore kit, if possible. Is this the cam for me? Any replies or advise is greatly appreciated.

I'd recommend a higher compression stock piston since you don't want to bore the cylinder. Great hop up if you like power..

[y2k400ex]

You dont need anything its a factory Honda part. No rockers or springs to buy, that kinda justifies the Price of the HRC. If you goint to put in a cam, also put in a high comperssion pistion like 10:1 or 11:1. and re work the head( seat the valves adn new seals)

and go to www.helminc.com and get a service manual for $40:D

[jedman]

Hey guys, thanks alot for the advice and replies, it is greatly appreciated. Could you help me out with the specific recommended part names like wiseco or even part numbers? Also what else would I need for changing the piston also? I was going to have the head end rebuilt and the new stuff put in at the same time. There is a local shop that is supposed to be pretty good. Will I need to run higher than 93 octane? Once again, thanks alot.

[brandonpeake]

this is just me but if i was going to do all that i go ahead with like a 416
go to
http://www.gtthunder.com
call and talk to laz he does great work ask on here , im geting him to do a 416 for me soon and i was suprised with the price, and he does as good as or better work than any of these other shops

[86atc250r]

I'll 2nd that - Lazarus is very helpful and knowledgeable.

If you're wanting to do it yourself I'd suggest getting a Ross piston. They are lighter than Wiseco and JE and more closely match the weight of stock (I've run all 3 and had them on a scale as well). http://www.rosspistons.com/

You will also need a top end gasket kit, available from Honda for about $25.

Reconsider not boring the cylinder. The stock bore piston sounds like a good deal (being just a drop in and not having to bore), but you risk not being able to set the clearances correctly since the bore size is likely to be out of spec with the piston --- where-as when you bore, your machininst can bore the cylinder to match the piston's clearance specifications. Boring the cylinder is a minimal cost & the oversized piston's cost will be the same as stock sized piston. I'd recommend going 86mm (406cc) or 87mm (416cc).

I've also had the opportunity to run about 5 different cams in my quad with the same basic engine configuration. The HRC is one of my favorites in my engine.

It doesn't have as much top end as a Web 450/451, but has a better mid and quite a bit more bottom end.

When directly comparing it to a Hotcams stage 1 or XR cam you will lose a little bottom end - although that's not a problem because these cams are bottom end monsters. You will gain quite a bit of mid and top - it will be noticible.

The HRC with my 416 setup has just enough bottom to work really well as an XC racing cam, and has a very nice midrange pull.

We used the HRC cam, a Ross 87mm piston, and an FCR 39mm carb for our B Class win at the 12hrs of America race this year.

[brandonpeake]

check this poist out
http://www.exriders.com/vbb/showthread.php?s=&threadid=85849
as far a names go , i m going with a respected engine builder, gt thunder, and im going to use a wiseco b/c he reccomeds that and has never had one fail that he built! and he is honest i was asking about carbs and he told me other places i could get one for cheaper than he could sell it to me for. so he is auctually looking out for his customers best intrest, i was going to do a duncan racing 440 but i talked with them then i talked w/laz and im going w/ gt thunder , i felt like duncan was just trying to get more money out of me

[jedman]

Thanks guys for everything! I am going to call GThunder and see what can be done. You guys talked me into a 416. I am going to go with the HRC cam and I will ask Laz about the right piston brand for me. Thanks for everything!

[Crawl69]

xr's only makes an hrc copy for about $140, I don't know how good the quality is, but you might want to check it out.

[Michael18]

Webcams has a cam that is the same grind as the HRC and a little softer, so it is easier on the rockers, for about half the price of the HRC.

[86atc250r]

Which cam would that be?

[JD400exrider]

Originally posted by Michael18
Webcams has a cam that is the same grind as the HRC and a little softer, so it is easier on the rockers, for about half the price of the HRC.

Sorry that makes no sence. :rolleyes: The HRC cam is a HONDA made cam for the oem rockers for a XR TRX motor . Simply put DROP in cam. That would make it the perfect match for the OEM rockers.

A softer or different hardness of metal on a cam would uh wear out the cam and/or the rockers.

[y2k400ex]

the HRC copy can is nothign but the Hot Cams Stage 2

[jedman]

Once again thanks for the advice! I am definitely going with HRC cam. I strongly agree with JD400exrider about the OEM parts. I am going to get my HRC cam at servicehonda.com for $275. I read that Laz at GThunder recommends Wiseco pistons, so I will need to find probably a 10:8 at a reasonable price somewhere. I will need a gasket kit to have the top end rebuilt. I was thinking about getting a 42 pilot and 155 main jet for starting purposes. I have a dynojet stage 2 in right now. Pappy suggested a battery to help with cold starting also(#CYT12A-BS). Any thoughts or suggestions on where to get the best prices.

[JD400exrider]

jedman

Give colby or dusty a call at C&D racing. (Number at the top of the page) They are the site sponsor. When you buy from them it supports this site. There prices are just as good or better than most other places and they are very helpful and good people to deal with. You can get your piston and gaskets there. Depending on how your motor is you might want to throw in a timing chain while your at it for some insurance. I bought a stock oem chain (did not know about the crf450 chain when i did my motor) but the crf450 timing chain is a more heavy duty chain. Do a search on here on for that info. You won't be disappointed whith the HRC cam. ;)

Good Luck