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Discussion Starter #21
I am happy with the way my Thruxton S is with the Meerkat and open pipes it performs all good for me, yesterday coming home late afternoon from out in the country visiting friends I still took the back tight twisty roads home and really pushed it to its limits with power, speed and handling, so to me it works all fine with me and it gets up to the limiter pretty quick.
But over time more things will come out for these 1200s I am sure of that, but for now I am happy with the way it is.

Ashley
Hell yes Ash, my meerkat and desnorkle made my S into an awesome machine.. I am just one of those blokes that likes to tinker... hence the cam. As they say it's your ride, set it up for how YOU want it to be.. your way is as good as mine..others have gone further than me with worked heads, I am not sure I am ready for that yet :)
 

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Hell yes Ash, my meerkat and desnorkle made my S into an awesome machine.. I am just one of those blokes that likes to tinker... hence the cam. As they say it's your ride, set it up for how YOU want it to be.. your way is as good as mine..others have gone further than me with worked heads, I am not sure I am ready for that yet :)
Dave I like to tinker as well, I have my hot rod 850 Norton that I have owned since I was 17 years old brought new in 76 last of the kick start Commando's and in the early 80s I converted into a 57 Wideline Featherbed frame, the Commando motor was built for the Featherbed frame, balanced crank for the Featherbed, hot cam (stock cam built up to 2S cam grind by Ivan Tighe in Brisbane) head ported and opened up and a few other goodies, this was my every day ride till 6 years ago when I brought my new AC Thruxton and now my 1200 Thruxton S, but I still ride my hot rod Norton with its hot motor and still tinker with it and 7 years ago a full rebuild and upgrade of brakes, carbies, Joe Hunt Maggie and suspension, its my toy, its super light, handles like its on rails and it quick, it surprise a lot of modern bikes and gives them a good run for their money.
Yes I like my Thruxton 1200S, but my hot rod Norton is my toy and I been tinkering with it for 44 years now.
The only thing I am going to do to my Thruxton 1200S soon is Race Tec springs up front as well Ecumlators and Ikon shocks on the rear, the same things I did to my AC Thruxton, I am happy with the stock motor and is plenty fast enough for me. I push all my bikes to their limits and hence the suspension work that will happen soon.

Ashley
 

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Just ride it... Heck, many people are fitting the cam and then having to toss it on a dyno and tune it... Can't do that if you have to baby it for hundreds of km's...
 

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Discussion Starter #26
Looking forward to hearing what the Top Speed is with this camshaft and sprocket change <img src="http://www.triumphrat.net/images/smilies/biggrin.gif" border="0" alt="" title="Big Grin" class="inlineimg" />
And where do you get the chance to do top speed runs these days without the fun police
Ashley
On my private airstrip of course. It fills in time while I am waiting for my Lear Jet to bring in a fresh batch of Playboy Bunnies from New York ?
 
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To be fair, the Thruxton is rather slow by sportbike standards, so hitting top speed for a moment or two isn't all that hard...
 

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But it’s not a sport bike and not trying to be one. What’s your point?
Well, the question was asked where one could ride its top speed. My point was that it’s top speed isn’t all that high, so you could hit it pretty easily on most average stretches of road...
 

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Break in methods are highly controversial on any new bike, I don't suspect there would be any less than 100 opinions on a Cam breakin either.
if something is going to happen, it's going to happen in the first 30 minutes of operation, regardless of how you run it.
 

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Top speed is really not so important the important thing with a cam is how much quicker it get up to high RPMs and getting the higher RPMs quicker through the gears and most hot cams work best mid range and above and picking the right cam for what ever use you want it for also plays a big part, its only early days yet and as time goes by there will be for sure a lot more different cam profiles will come on the market for these 1200 engines as well performance mods.

Ashley
 

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Discussion Starter #34
Break in methods are highly controversial on any new bike, I don't suspect there would be any less than 100 opinions on a Cam breakin either.
if something is going to happen, it's going to happen in the first 30 minutes of operation, regardless of how you run it.

@RHB well there ya go mate.. if you say that, then I will take it. I know you are careful about what you post and what you post is usually well considered. I was Pleased to hear the above quote coming from you :)
 

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Discussion Starter #35
Top speed is really not so important the important thing with a cam is how much quicker it get up to high RPMs and getting the higher RPMs quicker through the gears and most hot cams work best mid range and above and picking the right cam for what ever use you want it for also plays a big part, its only early days yet and as time goes by there will be for sure a lot more different cam profiles will come on the market for these 1200 engines as well performance mods.

Ashley
Agreed!!!!!, seconded!!!!, and approved!!!! thanx Ash :)
 
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Discussion Starter #36
Ok, been working on tunes using TuneECU..bike is now genuinely rapid
 
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I made it through the first page of comments and honestly I've never seen more misinformation about initial camshaft run-in in my life. This has nothing to do with a normal "break-in" period that one would do with a new bike. This bed-in procedure is to work harden the surface of the cam lobes on initial startup to keep them from disintegrating. If you're not aware of this procedure, read this: https://www.enginebuildermag.com/2011/04/flat-tappet-camshaft-break-in-procedure/


Most cam manufacturers (Lunati, Crane, Comp, etc...) also publish similar info.
 

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I made it through the first page of comments and honestly I've never seen more misinformation about initial camshaft run-in in my life. This has nothing to do with a normal "break-in" period that one would do with a new bike. This bed-in procedure is to work harden the surface of the cam lobes on initial startup to keep them from disintegrating. If you're not aware of this procedure, read this: https://www.enginebuildermag.com/2011/04/flat-tappet-camshaft-break-in-procedure/


Most cam manufacturers (Lunati, Crane, Comp, etc...) also publish similar info.
What would you recommend, a 30-minute bed in with mineral oil and then changing oil back to fully synth?
I was thinking about the tec cam for the Thruxton R but also may need to replace the inlet cam on my Daytona as there is is some pitting on a couple of the lobes.
 

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What would you recommend, a 30-minute bed in with mineral oil and then changing oil back to fully synth?
I was thinking about the tec cam for the Thruxton R but also may need to replace the inlet cam on my Daytona as there is is some pitting on a couple of the lobes.

The article I linked is fairly detailed and close to what I would do personally if no more specifics were available from the cam manufacturer. Oil is critical, use one of the listed or Maxim Break-In oil, all are the highest in ZDDP. I'd dump it after the first 30 minutes, put in high ZDDP mineral for 500 miles and then switch back to synthetic.



When I swapped exhaust cams on my Daytona I only ran the mineral oil for 500 miles and didn't do the 30 minute initial run-in. It was a used cam and I had no problems doing it this way. Those might just be porosities/voids and not actual defects. Is there any galling?
 

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Yeah I would describe them as small voids in the surface of the cam lobe, if you mean galling as in more scraping damage in the direction of travel then there was none of that. it was only on the furthest cam lobe away from the oil entry to the camshaft which I'm guessing is a factor, and slightly worse on the inlet to the exhaust. I'm not too concerned about it and I only spotted it when I did the valve clearances, I'll probably keep an eye on it going forward but it's such a PITA to get to the cams on a Daytona 675.
If you did a cam change and run mineral oil for 500 miles would you need to to treat the engine more gently not having fully synthetic oil in, bearing in mind it's a 14000 RPM triple.
 
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