I am the king of the cams!

[northwind]

K3 intake, old intake to the exhaust side... Gets you the exact same lift and duration as the JHS Stage 2 cams, or so reputable people who know what this means say. Though no adjustability, obviously- doesn't matter to me, I wouldn't have known how to adjust them anyway so no loss.

And if you ever let anyone else service it you'd better make damn sure they don't try and "fix" the timing because naturally all the marks are miles off, and you'll end up with moogled exhaust valves.

Like I say, I'm hoping for high end of the 70s but I don't want to make any solid predictions... My internal jury's still out on how good the WRP system actually is, for one thing. last time I went up to YPE to use their dyno I was all confident, "Don't know what it'll make but it'll be a step up" etc etc, and I'd lost a horse at peak

New jets are ordered, so once they arrive I'll get it booked in for the dyno.

Originally Posted by northwind

K3 intake, old intake to the exhaust side... Gets you the exact same lift and duration as the JHS Stage 2 cams, or so reputable people who know what this means say.

Not quite the same as the JHS Stage 2s but it's going to be an improvement over what you had.

Will be interested to hear what you get out of it on the dyno. Make sure you get the torque figures as well - SAE & lb/ft please

New jets again? You must have had your carbs off more times than a race team.

Did you replace rocker cover gaskets?

Originally Posted by northwind

Coombest, it's a hotter cam setup than the K3 stock- the exhaust cam is supposed to be the most restrictive of the two. With the system, jetting, filter, and advancer, it should be in the high end of the 70s- that's proper bhp at the rear wheel not your cheatin' crank figures But I don't really want to make any assumptions to be honest. I don't have any proper before/after figures, so I'll not be able to pin any increases down to just one bit- time and cost meant I couldn't get it properly jetted before hte cams when it might want doing again after.

I think you'll find that Tim's k3 with K and N, Scorpion can and re-map made a genuine 83 bhp at the rear wheel dude...and it was blue and the sexy new shape!!! It's an even newer shape now, and definitely not as pretty

[northwind]

Tim said it was crank in another thread... Try and keep up Chutz! I'd challenge anyone to get even 75 at the rear with just remap, end can and k&n. In fact, here's 10 pounds says you can't

Burner, believe it or not I've only changed the mains once- the 140 mikunis from my rene kit are still in there. i've changed the needles amd springs, but the used DJ kit I had was missing the biggest jets- which in any case are only 144 or 146 (I forget) DJs. Mike reckons 165s for a full system with a Race RS filter, so I've bought a spread from 150 to 170 just to cover all the bases.

Mike, the lift and duration figures on the JHS website were exactly the same as the figures found from the cheap-ass cam swap... I don't know how accurate that is natcherly, could just be the usual web crap.

SAE? I've always been recommended DIN correction before, could you tell me what the difference is?

How much did you pay for the cams? I get my dual rene done next week and will be looking for making some more noise. Plus northy, I wont let you beat me.

[northwind]

£61 per cam IIRC, plus a couple of quid for the tensioner gaskets. Um, no offence Andrew, but you do realise that if you get the timing even slightly wrong, you'll turn your valve stems into bananas and land yourself a massive job/bill and a non-running engine? It's not a massively difficult job, but it is a fiddly and exacting one.

No problem, if I get the instructions. Failing that I'll be taking a trip to Edinburgh

[northwind]

I can send you decent instructions, but to be honest I did it all with a rough overview, the Haynes manual, and a bit of common sense as far as the timing went...

Mike reckons 165s for a full system with a Race RS filter, so I've bought a spread from 150 to 170 just to cover all the bases.

On my latest set up I ended up using 170 jets but I do have twin cans so I'm not sure if that will work as well as the system you have.

I'm also becoming a convert to the idea that systems with larger header pipes have a benefit over those that are more restrictive.

Mike, the lift and duration figures on the JHS website were exactly the same as the figures found from the cheap-ass cam swap... I don't know how accurate that is natcherly, could just be the usual web crap.

I could be wrong as we discussed so many different cam options when I was down there yesterday that my brain got a bit fried by the end of it.

SAE? I've always been recommended DIN correction before, could you tell me what the difference is?

DIN is a slightly higher number which is why it is generally favoured by tuners and dyno shops. It isn't a huge difference but we favoured SAE because it is the equivalent imperial figure (rather than the metric DIN) so is more useful for what limited comparisons you can make around the world.

P.S. I've got a set of carbs that have had a dynojet kit (165 and 170 jets available) fitted plus a BMC Race RS filter in the For Sale section. Look in the '99 - '02 list near the bottom.