JHS stage II cams for $200

A guy on SVrider put on his '03 the '02 intake cam on the exhaust side and he gained 4 hp.

So, the combo '03 intake cam and '02 intake cam on the exhaust side works!

For the timing, I'll use the stock marks of the '03 intake cams and put new marks on my '02 intake cams.

Here's the result: 7 hp!

http://www.svrider.com/phpbb/viewtopic.php?t=16607

i asked itching to go joe to get me a price for the K3 cams heres what he sent me

intake cam front 12710-17g00 £61.57
rear cam 12730-17g00 £61.57

add another few quid to that price for the cam chain tensioner gaskets so about £125 for the "stage 2" cams

So JHS price is £350, and they get your old cams.

I seriously think I'm in the wrong profession.

I honestly might do this mod while I got the engine out, just not sure its worth it at the mo as I have a standard pipe wiith a race can on.

Originally Posted by OnFire

So JHS price is £350, and they get your old cams.

I seriously think I'm in the wrong profession.

I honestly might do this mod while I got the engine out, just not sure its worth it at the mo as I have a standard pipe wiith a race can on.

yes, and they only need to replace 2 cams instead of the 4 advertised

you will still get a benefit out of it as the most restrictive part of the exhaust system is the end can, bike will also sound a little louder as well

why not just get your existing cams ground to stage 2 or even stage 3 spec?
Is this mod you are refering to for the pre 03 or the 03 model?

pre k3, you probably could do it to the K3 model but the question is, if you do it *will* you lose midrange grunt for top-end power?
and thats not really suited to a V-Twin, as you can see in the dyno print out, there is an increase all the way across the rev range







* it could give an increase all the way across the rev range for all i know, but cams with wild lift and duration tend to shift power higher up the rev range at the expense of midrange, some are also known to cause lumpiness at tickover as well

I'm very close to talking myself into this mod now.

So a quick run though thou:

1. Get two inlet cams for an 03 SV.
2. Move crank to TDC, etc etc, remove old cams front and back as per manual (what ever that says, I don't have one) and remove tensioner/adjusters.
3. Replace cams, old intake to exhaust, new inlet to inlet. (Question here, do the new cams come with sprockets fitted??? If not wtf do I do?)
4. Whilst replacing cams, do you really need a special tool to reset the cam adjuster?
5. Once its all back together, do you have to set valve clearances? and if so where is the adjuster for this as I have only set VC's on push rod engines previously.

Or, how much you reckon JHS would charge if I turned up with the engine in the boot of the car and my own cams to fit? Last resort thought.

Thanks in advance Ant.

Oops last question, do I only need the gasket for the cam chain adjuster, not for the cam cover, right?

I better go to bed I gotta go work in the morning .

Dam it one more.......

Where do I get the cams? Do Royayers.Com ship to UK?