JOHN-DYNOSTAR
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Posts posted by JOHN-DYNOSTAR
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My god !!!!! he has learned
so much 
TORQUE has to cross at 5252rpm to be displayed properly
4000rpm hole
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I'll just drop this in here
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Watch their videos on you tube
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it also depends on the accuracy of a busa rev counter which has been known to be 1000rpm out.
which when we calibrate the dyno to wheel speed makes a difference. compared to the old dynojet guess your weight dyno's
with the old dynojets like moore mafia has , you need to do 3 runs to get an average of the actual power output.
to be fair to him he has just run a 5 second 1/4 mile so he is a bit of a hero on a gsxr1000
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this is an improvement over the stock system apparently
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well here's a hot topic . the gen 3 busa british maps are available as of two weeks ago while I was in the Pyrenees on holiday.
most people are just bench flashing the bikes as far as I can see, which is rubbish as they have a fly by wire throttle and you need to use the on bike live data to be able to map the damn things properly . but hey what do i know . just a bloke in a shed
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35 minutes ago, madmattt said:
That's a good question John. Dare I ask if you have had a failure on the dynon with a new build?
yes one in 25 years
2nd run, lost oil pressure and spun a shell on a big end due to blocked badly designed invisible Custom suction strainer screen .
it became visible when the custom suction strainer was dismantled. And a badly designed mesh screen discovered, unfortunate for us.
if the owner had done one more run before it came to us it would have happened to him . he was not aware there was a internal screen .
took the crank and a rod .
one of my friends brought a blackbird engine to us to test. Torpedo was working for me then and had hold of the throttle
Brand new vance and hines big valve cylinder head . valve seat came out 2nd or 3rd run.
tinkle rattle rattle , 3 cylinders.
normally long faces all round but Dave been Dave laughed , he sure does know how to make friends
the engine was built by the electrician for one of his grasstrack cars you may remember
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sorry but it would just make a noise with a big clearance and as you said you should hear it .
it has to be revved to valve spring bounce for the valve to float
one tap from the piston and the keeper comes out.
but the springs/valves have to be floating for this to happen
ie totally out of control and out of timing with the piston and cam.
a big valve clearance is not going to let this happen unless you are on the limit or just past it .
which is why you have competition springs and valves.
engines on the dyno exceed their parameters often at 50 - 800 miles from new
but fair play to him for doing good detective work in identifying a potential problem .
how many of these does it need for a recall
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that motor has been on valve bounce for a long time for the collets to come out .
love to see the tops of all the other valve retainers
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sorry after 2 minutes of listening.
If he or any of his family "hit" the rev limiter . the engine would definitely be "toast"
by the time they shut the throttle
fast reactions NOT
probably has really good 60' times at the drag race
edit
watched the vid and had to laugh at "factory defect"
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So do you, which is why you keep quoting him. He is an internet influencer
Must be earning a fortune off YouTube .
watch bad chad for proper car repairs
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Just to show an unbiased view on it all , here is a scooter tuners view with a different dyno
https://www.pedparts.co.uk/blog/moped-tuning-all-about-dynos
there is a common thread here
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49 minutes ago, mark3evo said:
like one of those 'no load' dynos John was on about
@JOHN-DYNOSTAR you obviously have experience with no load dynos, for me a mere mortal how do you know MM dyno is one of those ?
right
have a good look at the dyno he uses
remember fuel injection needs load to function properly ? ( read about it )
then look at these pictures
old 100/150 dyno jet dyno . + upgrade to eddy current made by you know who , because dynojet did not have one.
I went to the Dynostar factory to buy and upgrade for my dynojet 100 which I had upgraded to a 150 spec with the aid of a floppy disc, (remember them), it gave us DIN hp which was bigger numbers whoo!!
the rest is History
I had to have the upgrade to be able to tune fuel injection back in 2005.
Then Dynojet built a new new dyno completely , but yellow and still used the old dos based software.
the story of dynojet HP figures
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so @Martin
power graphs for stock bikes from members here tested in SAE
look in RH column for Hp figures not my description writing
these random bikes and runs I have picked 175hp to 181 hp inc albabusa, ayobusa,
and evobusa . stock but not sure on cans or not
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I will check this morning for you Martin
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Well I watched it all.
a No load dyno like my old Dynojet. keep doing runs till you get a good number. .I had 20 years ago.
should of made more power in the cold and wet conditions. But it didn’t.
you cannot set up fly by wire throttles properly without live data screens. he was just bench flashing and shooting in the dark . So didn’t do a bad job.
Still a Dead Duck 3 even with a pipe on. But we will see in 4 weeks when the Brocks Alien head arrives here for a Gen 2 next week if it gets through customs 😱
it may be the pipes yet
who knows
did anyone read the comments about the other stuff ? . I just couldn’t
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@Busa Harbour man where is the f***. off smiley
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MIKA can you get Sami to open the bin file on woolich
he does not need to buy them , just look at description
there are two binfiles
just see country of origin before he does anything
it may help
@Vanishing Point please take note of the same statement
told ya moore had to find a hook
I'm not rushing because I can't at the moment
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inlet
1st 2nd 3rd 4th
20.5 26 18 17
55.5 53 60 49.5
exhaust
13 17 7 11.5
42 39 52 49.5
new bike low miles
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