Camshaft

[blackjack010]

 Hello. I am fairly new to this board. I sold my VTX a few months ago and purchased a 1999 Interstate. I find that I miss the X but I am impressed with the Valkyrie, especially the ride. I am always looking for ways to get more power. Just can't leave it alone. The parts fish List 2 different part numbers for the right cam shaft as follow .  14110-MZO-670 and 14110-MZO-770  (they also list 2 different numbers for the left cam)  Does anyone  know  what  the difference. is? Possibly a different grind for California and the other States? Both these numbers are for the 1999 interstate model. I am planning to do the ECT mod and anything else that can gain some torque and HP short of a blower.
Thanks

[Friagabi]

If I remember my history correctly you hit it on the nailhead. Don't want the one for CA.

[sandy]

If you have the 49 state model, don't look for any other cams. After market cams were made but most folks who tried them weren't satisfied. You already have the better ICM and springs in the carbs, so no need to change them. Before doing custom changes, get the carbs balanced and see what the exhaust emissions are. A good shop can do a CO test and adjust the pilot screws to optimize carburation fuel mixture. Tuning for HP will hurt MPGs. If you plan on traveling, fuel gets expensive when the old girl gets 30 MPGs(or less).

[pvan]

As mentioned many times the Valk is a performance cruiser from the factory with limited options short of a blower to make it run harder.

A few options that work; lose some weight either the bike and or the rider.

Or you can get a bit more low to mid pull by installing a shorter rear tire but this cost top end and creates higher rpm cruising thus reducing hi-way mileage.

You can gain a few more ponies by choosing the right aftermarket exhaust and dyno tuning the engine to the new exhaust.

Lastly, keep the Valk for cruising... and buy a big tuned Crotch Rocket.

[Robert]

Lastly, keep the Valk for cruising... and buy a big tuned Crotch Rocket.

[fstsix]

     Guilty 'Couch Rocket'

[pvan]

This is the view most see of my "lil Crotch-er" :'(

[pvan]

Here is a pic of my N20 plumbing it is effective but looks like I could learn something from the "couch six" very nice plumbing job!

[fstsix]

shuuuurrr......tell everybody to just leave their Valk stock  . i got ya , so......if nobody hot rods their Valk that means you will have one of the few Couch rockets hehehehe hey Blackjack 010, It's ok if ya cant leave it alone as you can see, you got to watch some of these guys ya never know what they got in their garage LOL!!! Pvan did ya get the bike dialed in yet, or ya still working on it ?

[blackjack010]

Alas some people will never understand or know the thrill or excitement and satisfaction of getting the most you possibly can out of your ride no matter what it is. And the personal satisfaction of having done it with your two own hands and imagination.The naysayers will probably not understand the following either.( One should not travel to the grave with a pretty well preserved corpse. Rather one should slide in sideways tires smoking body completely  used up. Proudly proclaiming MAN WHAT A RIDE.)

[Mikey]

Blackjack: I agree 100%... My dad and I built a 1983 BMW 320i (100 hp stock) and pushed it to about 140 hp without forced induction. I think one of the biggest helps for us was http://www.webcamshafts.com/ . We did some research, found a baseline, and then told them what we wanted them to grind it to.

They actually have a cam for the Valk too: http://www.webcamshafts.com/index_blank.html?pages/vehicle_search.html

[fstsix]

Blackjack, if i were not running the Blower, and wanted some Hp, i would pull the heads and open the Ports and also Mill the heads about 125000 thousands, try to bring the compression up 1 point, the aftermarket Webcams are expensive but still cheaper than a blower, and a good set of headers, and rejet the carbs, But if you are like some of us tuning is always the answer to get it to run crisp, if ya aint scared go for it. 

[blackjack010]

Thanks for the suggestions. I prefer to work with normally aspirated motors and just see how far I can take it. I have poked around for parts and web cams seam to be the only ones out there. I also looked into pistons and came up empty but I am sure that some one would make them to my specs. I did find that Honda offers pistons (stock) in a 1.00 over size So I am thinking that  along with milling the heads and possibly decking the cylinders should raise the compression considerably. Then one mod leads to another and another.  Trying to coax more ponies out of this motor should prove to be more interesting than the X was. It seems that many parts will have to be fabricated. i am sure that that there is a wealth of knowledge in this Forum that I can draw on.

[pvan]

Bigger Valk pistons,  cams, head work is expensive and does not build all that much more hp.

The harder a guy looks at the Valk engine the more he will come to the conclusion that w/o packin air the engine is about as high performance as your gonna get.

Fastsix My Valk has been lightened down to about 650lbs including a full 16oz N20 bottle that gives about 40+hp over the blower. My Valk was expensive but fun to build, is dead nuts reliable, and in my neck of the woods a formidable weapon to most any cruiser. My kills so far is all V-twins that have tried, including a nasty 124ci SS Fatboy that he paid $70,000 to have built, and I did not have to use my N20 even on the R111 I spanked.
I am afraid of sportbikes when on my Valk... so again if you want to go fast get a big sport bike and use the Valk for cruisin, that's what I do!

[fstsix]

Bigger Valk pistons,  cams, head work is expensive and does not build all that much more hp.

The harder a guy looks at the Valk engine the more he will come to the conclusion that w/o packin air the engine is about as high performance as your gonna get.

Fastsix My Valk has been lightened down to about 650lbs including a full 16oz N20 bottle that gives about 40+hp over the blower. My Valk was expensive but fun to build, is dead nuts reliable, and in my neck of the woods a formidable weapon to most any cruiser. My kills so far is all V-twins that have tried, including a nasty 124ci SS Fatboy that he paid $70,000 to have built, and I did not have to use my N20 even on the R111 I spanked.
I am afraid of sportbikes when on my Valk... so again if you want to go fast get a big sport bike and use the Valk for cruisin, that's what I do!

Your right if your setup right, it is a good dependable bike, i would load the T bag up and saddle bags and Wife and take off from East to West and wouldn't hesitate with the blower.

[fstsix]

Thanks for the suggestions. I prefer to work with normally aspirated motors and just see how far I can take it. I have poked around for parts and web cams seam to be the only ones out there. I also looked into pistons and came up empty but I am sure that some one would make them to my specs. I did find that Honda offers pistons (stock) in a 1.00 over size So I am thinking that  along with milling the heads and possibly decking the cylinders should raise the compression considerably. Then one mod leads to another and another.  Trying to coax more ponies out of this motor should prove to be more interesting than the X was. It seems that many parts will have to be fabricated. i am sure that that there is a wealth of knowledge in this Forum that I can draw on.

Stay with the stock piston 9.8to1, the flat top piston has a good flame swirl, i have seen some problems on this board from boring for larger pistons and have blown head gaskets, If you could get to 11.1 compression, you could offset your cylinder pressure with a longer duration cam, and avoid detonation, you will also increase gas mileage with higher comp, the motor will run more efficient, but hotter, run a oil cooler, it is just a toy Also try Clay Smith cams Buena park Ca, he has been grinding cams for years, he did mine when i was a teenager. http://www.nightrider.com/biketech/hdhead_compression.htm