Page 2014 of 2625 FirstFirst ... 10141514191419642004201220132014201520162024206421142514 ... LastLast
Results 30,196 to 30,210 of 39365

Thread: ESE's works engine tuner

  1. #30196
    Join Date
    18th May 2007 - 20:23
    Bike
    RG50 and 76 Suzuki GP125 Buckets
    Location
    Auckland
    Posts
    10,473
    Quote Originally Posted by husaberg View Post
    Have you seen this one Ken
    its a tiny high ultra pressure pump.
    https://www.popularmechanics.com/car...tors-15682450/
    https://news.engin.umich.edu/2012/09...sions-in-asia/
    have a look at the fuel spray

    kind of reminds me of a hilborne system only electric
    http://www.freepatentsonline.com/20140117121.pdf
    The Uni students all in one motorcycle EFI system looks pretty good, brilliant even and the voice coil injector is a great idea, I love it.

  2. #30197
    Join Date
    18th March 2012 - 08:35
    Bike
    Homebuilt chassi, Kawasaki 212cc
    Location
    Sweden
    Posts
    660
    Still testing clutch, now i´m happy.
    This tune is good as now i can add springs or loose weights on the clutchfingers to gain different results, more rpm, harder engage etc etc.
    The tune in the video is a grandma tune

    Yes i have been lazy,, tied up the silencer with a rope, it got loose.
    And in front the shiftcut box is hanging by the loom.
    I´ll fix that tomorrow.
    And this weekend i´ll try to tune the engine some also(dyno)
    It is last years tune that i did for the old setup.



  3. #30198
    Join Date
    8th February 2007 - 20:42
    Bike
    TZ400
    Location
    tAURANGA
    Posts
    3,885
    Using a voice coil system to create the injection fuel pressure ( amplitude and frequency controlled by an ECU ) will infringe a key part of
    the Etec patent.
    This is the basis of the whole system as used by Evinrude and SeaDoo , im sure they will spit the dummy if their mega expensive licencing is infringed
    by attempting to use this commercially.
    Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.

  4. #30199
    Join Date
    20th January 2010 - 14:41
    Bike
    husaberg
    Location
    The Wild Wild West
    Posts
    11,823
    Quote Originally Posted by wobbly View Post
    Using a voice coil system to create the injection fuel pressure ( amplitude and frequency controlled by an ECU ) will infringe a key part of
    the Etec patent.
    This is the basis of the whole system as used by Evinrude and SeaDoo , im sure they will spit the dummy if their mega expensive licencing is infringed
    by attempting to use this commercially.
    Unlikely a patent has been issued.
    http://www.freepatentsonline.com/20140117121.pdf
    https://patents.justia.com/patent/9500170

    I cant see Etec in citation either i assume you are refering to this one?
    If it is the one Etec is Piezo?

    US 4610427?


    was it patented by
    Yoshinaga, T.; Igashira, T.; Sakakibara, Y.; Abe, S.; Natsuyama, Y. ?

    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  5. #30200
    Join Date
    27th October 2013 - 08:53
    Bike
    variety
    Location
    usa
    Posts
    942
    Quote Originally Posted by SwePatrick View Post
    Still testing clutch, now i´m happy.
    This tune is good as now i can add springs or loose weights on the clutchfingers to gain different results, more rpm, harder engage etc etc.
    The tune in the video is a grandma tune

    Yes i have been lazy,, tied up the silencer with a rope, it got loose.
    And in front the shiftcut box is hanging by the loom.
    I´ll fix that tomorrow.
    And this weekend i´ll try to tune the engine some also(dyno)
    It is last years tune that i did for the old setup.


    nice work mate. let me know where you sort out the clutch. I also have a finger style that im installing on my Yamaha. I understand the idea how it works but ive never spent a day tuning one. my biggest hurdle might be finding the correct initial weight for the fingers. after that, I shouldn't have much trouble. ive only got weight to worry about, no springs

    if you give some nitro a go, you may never go back to straight methanol again . even if everything isn't perfectly tuned, you still gain power. but take caution because it can be explosive even at just 10%. it nearly blew my decompression valve off my other head

  6. #30201
    Join Date
    12th March 2010 - 16:56
    Bike
    TT500 F9 Kawasaki EFI
    Location
    Hamilton New Zealand
    Posts
    2,764
    Quote Originally Posted by SwePatrick View Post
    Oem Kawasaki KX250 with mods and Polini petals
    New V-force is bad,, the petals are getting soft, the resin dissolves.

    I tried a boyesen cage with polini petals, no good.
    There´s no rubber coating so the petals lands so hard it smashes them.
    what are the polini petals made of?
    Vforce ? cage get soft also?

  7. #30202
    Join Date
    28th August 2015 - 00:01
    Bike
    1975 Hodaka Wombat
    Location
    Eugene, Oregon, USA
    Posts
    302
    For no particularly good reason I've been exploring the idea of a piston ported cylinder with a boost port for a 26 cc engine. I know it's been done before, see below. My design looks weird and simulations don't show any power gains over a cylinder with no boost but a wider B port. Of course scavenging isn't being modeled. Any thoughts or other ideas?

    Lohring Miller

    Click image for larger version. 

Name:	Piston Port Cylinder 1.jpg 
Views:	360 
Size:	255.9 KB 
ID:	337615 Click image for larger version. 

Name:	Zenoah Miller Cylinder .jpg 
Views:	296 
Size:	23.7 KB 
ID:	337616 Click image for larger version. 

Name:	Zenoah Miller Cylinder v7.jpg 
Views:	333 
Size:	28.2 KB 
ID:	337617

  8. #30203
    Join Date
    3rd January 2012 - 01:25
    Bike
    -
    Location
    -
    Posts
    284
    Quote Originally Posted by lohring View Post
    Any thoughts or other ideas?
    Don't do it. The BP is the least useful port of all. Focus on B instead if you can choose. I once blocked the BP out of curiosity, and other than half a horse or so (which could be related quite well to the then reduced transfer TA) nothing happened.

  9. #30204
    Join Date
    18th March 2012 - 08:35
    Bike
    Homebuilt chassi, Kawasaki 212cc
    Location
    Sweden
    Posts
    660
    Quote Originally Posted by Flettner View Post
    what are the polini petals made of?
    Vforce ? cage get soft also?
    Just petals got soft, but i actually never checked the cage carefully.
    It´s the resin in V-force petals that becomes soft, i mailed them and asked, they confirmed.

    I dunno what resin polini uses, but they work,, good enough

  10. #30205
    Join Date
    18th March 2012 - 08:35
    Bike
    Homebuilt chassi, Kawasaki 212cc
    Location
    Sweden
    Posts
    660
    Today´s progress: FAIL!

    Well, one should always be prepared for disaster, and luckily i am so no tears here.

    I finally put it on the dyno, engine felt really crisp and fresh, good throttleresponse etc etc after a long warmup.
    I made some smaller pulls with no recording just to feel how it behaved with the clutch.
    All seemed fine so i was about to make a 5000-11000rpm pull to let it cool down and do it again a couple of times.

    But,, at the first pull i noticed at about 10500rpm that it had a small waterleak around a headstud.
    BAM!!!! just the tenth of a second later a hose i have plugged to be able to vent out the air when filling with water as the radiator is lower than the cylinder came loose.
    I got myself a hot shower on my chest and face, luckily no damage on me,, just hot.
    But engine coasted down as i was spitting out the water from my mouth.

    It had protruded water into the cylinderbore, and made some smaller scoring on the fresh nicasil.
    Maybe it is possible to diamondhone it and use it again, i´ll check that later.

    Why did it happen?

    i got three enginemounts the lower one underneeth the engine had cracked and when engine hit the torque the engine tilted upwards, the only thing that kept it from rotating was the upper mount, this is mounted in a bracket on the head.
    It had actually 'moved' the head some, this probably because i torqued the head only with 15Nm as i was about to torque it again after this pull when it was hot.

    Click image for larger version. 

Name:	fail.jpg 
Views:	189 
Size:	119.0 KB 
ID:	337618


    Well well,, i´ll be back, it sounded just to good to give up now

  11. #30206
    Join Date
    18th May 2007 - 20:23
    Bike
    RG50 and 76 Suzuki GP125 Buckets
    Location
    Auckland
    Posts
    10,473
    Sorry to hear about the disaster......

    When we have disasters we say to ourselves, at least we know the formula because the formula is often more valuable than the damage discovering it.

  12. #30207
    Join Date
    27th October 2013 - 08:53
    Bike
    variety
    Location
    usa
    Posts
    942
    Quote Originally Posted by Flettner View Post
    may i ask, you ethanol / methanol junkies, what reeds are you running?
    for atleast a year i been using carbontech. i think its a subsidiary of boyesen. already 1gal nitro and many gallons methanol and they still seem fine . they can also make custom orders
    https://www.carbontech.com/

  13. #30208
    Join Date
    18th May 2007 - 20:23
    Bike
    RG50 and 76 Suzuki GP125 Buckets
    Location
    Auckland
    Posts
    10,473
    Click image for larger version. 

Name:	Test Setup.jpg 
Views:	63 
Size:	909.9 KB 
ID:	337622

    I have been making progress with the simulated MAP idea.

    I have abandoned my original idea of using a MAP sensor to see the high and low pressures because MAP sensors are too slow and instead will use a piezo element.

    Click image for larger version. 

Name:	Same TP Different Air Flow.png 
Views:	81 
Size:	391.8 KB 
ID:	337619 EngMod2T simulated crankcase pressure traces.

    Because all the peak pressures all line up at the same crank angle I have embraced Flettner's idea of "sample and hold" by making only one timed measurement at peak pressure and using that for the complete cycle.

    Click image for larger version. 

Name:	Signal Generator.jpg 
Views:	75 
Size:	769.5 KB 
ID:	337621

    I have been able to use some PC based software to generate a simulated ignition trigger pulse and crankcase pressure trace for my software's test and development purposes.

    Click image for larger version. 

Name:	Code.jpg 
Views:	67 
Size:	779.1 KB 
ID:	337620

    The code is pretty simple, an interrupt triggered by the ignition trigger pulse at which time it waits about a third of the duration between pulses and then samples the crank case pressure. The loop writes the simulated MAP output signal that then goes to the EFIs CPU.

    Simple code but it took a while to get it and my test setup to work reliably over the full RPM range.

  14. #30209
    Join Date
    12th March 2010 - 16:56
    Bike
    TT500 F9 Kawasaki EFI
    Location
    Hamilton New Zealand
    Posts
    2,764
    diesel is dead to me. Are we allowd to talk diesel here?
    Last diesel ute I had would do just on 1200 km on a tank full of fuel. New diesel ute (same ute just new) gets just on 900 km per tank full, same size tank. Turns out new ute has a partical filter where as the previous one did not. 300 km worth of fuel per tank wasted just to run this filter. WTF?
    How soon before Mazdas HCCI are here? How soon before we see HCCI powered utes, I'll be trading this bugger on one.
    So what about all the extra CO2 released just to run this filter? Good for the enviroment, I don't think so.

  15. #30210
    Join Date
    12th February 2004 - 10:29
    Bike
    bucket FZR/MB100
    Location
    Henderson, Waitakere
    Posts
    4,195
    Less particles, more CO2

Thread Information

Users Browsing this Thread

There are currently 65 users browsing this thread. (0 members and 65 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •