Cam re profile.

[Laverdaroo]

Cheers John, that sounds just the thing, did you do any porting work or just the cam install after the re grind?
I’d like a bit more poke but don’t we all, (leave it Phil!!) and really thinking I’ll do this before I put the top end back in. It’s only the duration that changes or are you modifying the timing to suit? Don’t want to open a can of worms and all that…….


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[Johnwebley]

Cheers John, that sounds just the thing, did you do any porting work or just the cam install after the re grind?
I’d like a bit more poke but don’t we all, (leave it Phil!!) and really thinking I’ll do this before I put the top end back in. It’s only the duration that changes or are you modifying the timing to suit? Don’t want to open a can of worms and all that…….


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  just  fitted the cam,

  I think they must grind about 1mm of the base of the cams,

 its how Yoshimura started in Japan

[Laverdaroo]

Yeah except he probably did it with bamboo, underwater whilst practicing his ninja skills or something bonkers. He was a true alchemist wasn’t he

Cheers John, top info, I sent them an exploratory email last week so I’ll hang on and see what they come back with as a starting point for making a decision.

Much obliged


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[Oddjob]

I was quoted £100-120 for a cam re-profile Roo, this was on Feb 9 2022.

I wanted 5 degree more overlap and 10 degree more duration as it's supposed to wake up the engine mid range. I don't want a cammy engine, just one that's tractable throughout it's range.

I also intend to match the inlet ports and enlarge the roof of the port a little.

Phil did you trim the vac gauge screws so they don't protrude into the inlet tract?

[Laverdaroo]

Cheers Ken, building a mental justification for the whole affair as money is running a bit short for the build now I’m towards the end. I’ve still paint and seat to fork out for. Bryan has offered a donor cam so I’m not without if I do send it away so it’s not like it’ll be dormant whilst aesy. I had a quick chat with newmans today as somebody was in the office and gave me a call, they quoted similar costs and about a week turn around depending on severity of wear, etc.

On a plus side, my badges came today so they’re off down to Matt’s when I get two mins to be made smaller and a bit more suited to the bike. For aftermarket, they’re pretty good for the 40 odd quid I paid for them. Heavy though



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[Laverdaroo]

Shame theF isn’t orange though, it’d match the paint


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[Oddjob]

Ask if anyone has any broken badges off the 500 as the orange F out of one of them will most likely fit.

I have some around somewhere but they seem to have gone missing.

[Laverdaroo]

Good shout bud. Did you get anywhere with your daughter playing about with resins? Not sure if it was you but your the chief fiddler so it must be

Weren’t you fiddling about with different types ad foul to get the twinkle?

If so, how did that go???


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[Oddjob]

Yes it was my daughter but she's not well at the moment and I don't want to pressurise her so I'll wait until she can do some stuff for me. She made me a set of Dominos for Xmas out of resin with the Witcher logo on the back of the Dominos and the box. Really good job she made of it too.

I'll put a pic up if I remember.

Badges are on the back burner whilst I do the bits coming back from Camcoat.

[Laverdaroo]

Aaaahhhh, I see. Knew somebody was fiddling with some badges. Hope she’s not too bad mate bless her.


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[Sesman]

Phil did you trim the vac gauge screws so they don't protrude into the inlet tract?
[/quote]


No, Ken. The replacement s/s items were a little shorter. I just rolled the ends on a grinder to taper them. TBH I didn’t spend a lot of time, I just port matched and cleaned up the casting flashing in the inlet ports then raised the inlet roof around the valve entry by a 1mm or so. I left the exhaust alone, apart from removing some obvious casting irregularities. TBH, with no real background knowledge or evidence, I’m not expecting great things…...I took the Tips from Mike Reik on the USA website (think that’s his name).

[Sesman]

MRieck.

[Bryanj]

Roo, when you come up you can have a look at one of his heads if you want!

[Laverdaroo]

Eh, who’s heads? You’ve lost me bud.


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[Sesman]

Bryanj…you have a head modified by MRieck?