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Dyno
Sept 5, 2015 8:01:39 GMT 1
Post by stusco on Sept 5, 2015 8:01:39 GMT 1
Anyone used dynotech eccosse in Glasgow for setting up their carbs or even know if they do to strokes?
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Dyno
Sept 5, 2015 11:23:18 GMT 1
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Post by midlifecrisisrd on Sept 5, 2015 11:23:18 GMT 1
Had my 385 there a couple of years ago for a power run and mixture check.
Only did wot run's and connected gas analyser one run each cylinder as he did not want to mess the sensors up.
No real experience of 2 strokes but got what I needed to know it was safe (ish) and what direction to go in.
He said the main was spot on. Problem was it would have been for a four stroke, it was actually a bit lean right at the top.
On a positive despite it being a dynotech it was actually quite accurate as not much more than mick abbey's dynotech which reads low.
If you want a proper fuel set up you will have to travel
Will get round to it one day to do a proper ignition map
Steve
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Dyno
Sept 5, 2015 11:26:36 GMT 1
Post by russie on Sept 5, 2015 11:26:36 GMT 1
Do you know what type of dyno they've got? If it's an inertia type like Dynojet for example, it really needs a brake on the dyno drum or a skilled operator. The lack of engine braking means the dyno drum (1/2 tonne on a Dynojet from memory) will take ages to slow down and that means either braking the drum or holding the clutch in until the drum slows down to prevent the engine seizing on the over-run due to lack of lubrication. (Applying the back brake will grossly overheat the brake and cause damage to the brake drum (wheel) or disc so that's not an option) Some dyno operators might have never had a two stroke on their dyno, some don't like running them as they reckon the two stroke oil contaminates their oxygen sensors. Exhaust gas temperature is a better way of checking the fueling on a two stroke but that means making adaptions to your header pipes to accommodate them. It's tricky because you need to interrogate the dyno operator without insulting their intelligence! You'll get away with that though because most people crap themselves about running their bike on the dyno! Post up the graphs if you get them?
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Dyno
Sept 5, 2015 11:45:31 GMT 1
via mobile
Post by midlifecrisisrd on Sept 5, 2015 11:45:31 GMT 1
It is a dyno jet. He didn't let the bike run long on over run but then it was done in top gear so dipping the clutch risked the pushrod welding up
Can't remember if it had a brake
Steve
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