Phill106 Posted March 27, 2017 Share Posted March 27, 2017 Wanting to make my own cam oil feeds, anyone know what size banjo bolts I'll need to go into the head? Is it an irregular size/thread? As the ones I have laying around don't seem to want to fit. Quote Link to comment
Gixer1460 Posted March 27, 2017 Share Posted March 27, 2017 I think they are M14 or M16. If you have access to a lathe the extg plugs can be drilled and tapped for a M10 Banjo and use dash 4 or 5 hose. Not sure if you can get dash 6 hose sized banjos with M10 bolts - might have to go up to a M12 bolt BUT the plug gets a bit thin but it can be done as i've got some from my dragbike motor. Quote Link to comment
Sheep Posted March 27, 2017 Share Posted March 27, 2017 Are the cam to cam links actually beneficial in any way Gixer1460?..just curious Quote Link to comment
markfoggy Posted March 27, 2017 Share Posted March 27, 2017 Anybody know where M10 Banjo bolts with an M8 thread come from nowadays? This is proper odd ball, but somebody must have a source. @ Sheep, look here. http://www.customfighters.com/forums/showthread.php?t=42930 Appologies Mods if I'm breaking any rules, but this is an important resource. Quote Link to comment
Phill106 Posted March 27, 2017 Author Share Posted March 27, 2017 1 hour ago, Sheep said: Are the cam to cam links actually beneficial in any way Gixer1460?..just curious Cams get abit of a shit deal when it comes to there share of oil, it gets restrictive and that's never good, so this just help prolong abit of life Quote Link to comment
canamant Posted March 27, 2017 Share Posted March 27, 2017 (edited) How does this work ? The oil goes up the outer studs to the camshafts galleries. I've been road racing these things for 15 years and Cregnybaa for over 30 years. The camshaft journals look new in all the engines I've stripped and neither myself nor Cregnybaa have fitted these link lines. All of the engines we have worked on have been high mileage second hand units of unknown history regarding oil changes etc. Edited March 27, 2017 by canamant additional info Quote Link to comment
markfoggy Posted March 27, 2017 Share Posted March 27, 2017 I agree, just about totally unnecessary, but if you push some pressure into the cams from the ends it should give the journals an easier time. I think it makes sense if this oil then ends up giving the Rockers an easier time if you are forcing the cam ramps. Also makes some sense, to me, that you lose little in the way of cooling. I am trying to get my head (pun :lol:) around this, I can see some benefit of running a baby cooler in this circuit, but I am insane and only think about engines being tortured for way longer than most people would. I'm thinking that the lift on the pump is probably not quite good enough. Endurance Racing, it does make you think slightly differently. Now I have a link to a very small, temp controlled, oil bypass valve. It is from SkiDo's, so thermostatic switching of the circuit could be possible. Sorry if I am rambling on, but I tried a load of this stuff with Old Trumpets back in the day, which is probably the least sophisticated oil cooling solution that you can image. Now this Is an oil cooled motor, I'm sure that cooling could be improved. At the moment though I'm not clear in my head where the standard filter and cooler fit in the loops. Cool, clean oil is obviously what the pump wants and should be fine for delivery to the major bearings. All the real heat though is up top, If I could deliver cooler oil there it should let the whole lump perform better. Quote Link to comment
Gammaboy Posted March 28, 2017 Share Posted March 28, 2017 1 hour ago, markfoggy said: Now I have a link to a very small, temp controlled, oil bypass valve. It is from SkiDo's, so thermostatic switching of the circuit could be possible. Linky? Quote Link to comment
Poldark Posted March 28, 2017 Share Posted March 28, 2017 We can waste our time discussing whether this modification improves performance, but we know it most certainly makes a bike look faster. But seriously, did the factory sponsored race teams do this? I figure they had the most tech support and would know best what benefits there are. They also had a lot to loose; bike failing at the track would lead to lower sales. I don't push my stuff that hard; it would be for looks if I did it. 1 Quote Link to comment
Gixer1460 Posted March 28, 2017 Share Posted March 28, 2017 To a point I agree with the un-neccessary argument but there's also nothing to say they harm or hurt the oil distribution! Me personally - I don't run oil up the barrels to feed the top end so need them with an additional external feed. With my hybrid motor - GSX bottom and GSXR top, the pump although uprated didn't need the aggro of negotiating the block galleries and jets but just had to get to the lumpy cams as directly and smoothly as possible. Quote Link to comment
suzook12 Posted March 28, 2017 Share Posted March 28, 2017 13 hours ago, Sheep said: Are the cam to cam links actually beneficial in any way Gixer1460?..just curious None whatsoever. If you are putting an oil feed to the cams different matter, cam to cam basically just equalises any pressure difference, not always a good thing. If you have 1 worn journal giving a low pressure on that cam, you will be reducing oil to the rest.... 2 Quote Link to comment
nlovien Posted March 28, 2017 Share Posted March 28, 2017 great post - i'm not familiar with the oil cooled gsxr engine - seen a good few of these external oil pipe feeds, been meaning to ask - got my answer here brill Quote Link to comment
suzook12 Posted March 28, 2017 Share Posted March 28, 2017 My drag bike runs billet cam links with an oil feed from the end of the rockers, have also seen then done with a feed from the main oil gallery, which I'm guessing have some sort of restrictor in there to stop robbing oil from elsewhere Quote Link to comment
Banditmac Posted March 28, 2017 Share Posted March 28, 2017 1 hour ago, suzook12 said: My drag bike runs billet cam links with an oil feed from the end of the rockers, have also seen then done with a feed from the main oil gallery, which I'm guessing have some sort of restrictor in there to stop robbing oil from elsewhere Any pics? Quote Link to comment
markfoggy Posted March 28, 2017 Share Posted March 28, 2017 18 hours ago, Gammaboy said: Linky? I'm sure there was also another product and a more comprehensive spec sheet last time I looked, but...... https://www.jagg.com/collections/by-pass-valves/products/4050 Quote Link to comment
wraith Posted March 30, 2017 Share Posted March 30, 2017 Just to add my bit I've put can to cam links on one of my bikes, by using the standard can end bolts and drilling and tapping them to fit the standard m10 banjo bolt, then cutting and re-tapping the thread of a m10 banjo bolt to the m8 size on the can cover side hole. I then used the standard size brake line hose. A local machine shop could do this for you for not a lot of cash. Quote Link to comment
Dezza Posted March 30, 2017 Share Posted March 30, 2017 I always thought the consensus was that cam-to-cam link pipes were functionless bling. Why add unnecessary weight? 3 Quote Link to comment
370steve Posted March 30, 2017 Share Posted March 30, 2017 8 minutes ago, Dezza said: bling. Why add unnecessary weight? why do anything?? coz we are all different and all want different things from our builds. its not all about function Quote Link to comment
suzook12 Posted March 30, 2017 Share Posted March 30, 2017 On 28/03/2017 at 5:53 PM, Banditmac said: Any pics? as requested Quote Link to comment
wraith Posted March 30, 2017 Share Posted March 30, 2017 Pics of mine, cheep to do 1 Quote Link to comment
clivegto Posted March 30, 2017 Share Posted March 30, 2017 Just messing around with this at the moment. Quote Link to comment
markfoggy Posted March 30, 2017 Share Posted March 30, 2017 I'm starting to think I'll give it a miss. I'll probably only be happy if it's all lockwired to within an inch of it's life ('cause oil lines), which would rapidly end up looking like the swarf tray under a busy lathe. 1 Quote Link to comment
370steve Posted March 30, 2017 Share Posted March 30, 2017 4 hours ago, wraith said: Pics of mine, cheep to do did mine like that but with a double banjo in the middle Quote Link to comment
clivegto Posted March 30, 2017 Share Posted March 30, 2017 Had a 4 line kit from hel on my 1340 bandit feeding from the main oil gallery below the pickup cover. 1 Quote Link to comment
Gixer1460 Posted March 31, 2017 Share Posted March 31, 2017 12 hours ago, 370steve said: did mine like that but with a double banjo in the middle Neat and tidy DIY - I like the adapter and 90 deg fitting out of the cover. They always sort of look wrong with a straight or slightly cranked banjo. Nice! 1 Quote Link to comment
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