ESE's works engine tuner

[DoldGuy]

Red Edmonston

http://investorshub.advfn.com/boards...e_id=100142794


Frits, hope this will end your waiting as I don’t think he will be showing up this life’s journey.

[DoldGuy]

Google images of: george boswell carburetor

I have heard motors run with these carbs back in the nineties & they where VERY responsive & crisp.

The brains behind this had accommodations elsewhere for a while, but has since thought of another avenue for the carburetor...

Google: PWK stic metering block

[Frits Overmars]

Red Edmonston http://investorshub.advfn.com/boards...e_id=100142794 Frits, hope this will end your waiting as I don’t think he will be showing up this life’s journey.

Thanks DoldGuy, I get your point; I edited my previous post, replacing spiritual father with patent holder.

[guyhockley]

"unique result", they say...
https://transmoto.com.au/bike-dissec...maha-yzr500fi/

[marsheng]

Going by the name of steve james, he is wrecking a MBR250 and wants to know if
I need any parts. Just to confirm that he 'has' the bike, he shows me a
picture of it. It is a picture of the bike in my back yard. Ha Ha. I don't
think the lift goes to the top in this one. Just how many MBR250s are there? Not a trick question, one.

Anyway as a security check, I always get a contact number that I call that is
registered to an address backed up with a Whitepages entry or web page.

I think I will string him along for a ride for a while. Darwin award ?

[Grumph]

Going by the name of steve james, he is wrecking a MBR250 and wants to know if
I need any parts. Just to confirm that he 'has' the bike, he shows me a
picture of it. It is a picture of the bike in my back yard. Ha Ha. I don't
think the lift goes to the top in this one. Just how many MBR250s are there? Not a trick question, one.

Anyway as a security check, I always get a contact number that I call that is
registered to an address backed up with a Whitepages entry or web page.

I think I will string him along for a ride for a while. Darwin award ?

Certainly an award for something, Wallace. But it's obviously a very rare and expensive bike....
Is the payment to go to Nigeria ?

[ken seeber]

Question: Is there a phone app (Android) that one can stick on a phone in one’s pocket and do a (straight line hopefully) acceleration run and this is recorded. Essentially the output will be velocity vs time or preferably, acceleration rate vs speed. Don’t care whether it is just GPS based or utilizes the phone’s accelerometer.

Why? I have been working on the sliding cylinder engine https://www.youtube.com/channel/UCg2...E0nEmf8YrX0RYQ and have tried to run it against a water brake dyno. So far, I just can’t make it work, seemingly the engine power curve exceeds the absorption curve at some point and the engine just revs of to infinity (well, just over 70,000 rpm). Figuring I don’t want to be developing a dyno, I reckon that for cheap thrills I am just going to wack it onto a kart and drive up some bitumen road or track.

Given this, if I could record the accel (at varying cylinder height steps), it’d be extremely useful. I can back calc the engine rpm from the kart speed.
The few apps I have looked at seem to have things like 0 to 60 mph, 1/8 mile, ¼ mile test ranges, but I just want to be able to press start, do a run and then press stop and have an accel run log.

Any ideas?

[wobbly]

https://play.google.com/store/apps/d...ectPower&hl=en

[diesel62]

Is the GPS refresh rate good enough for that on a phone?

Sent from my SM-G900F using Tapatalk

[SwePatrick]

They are using the acceleratorsensor in the phone.

I´m using this one:

https://play.google.com/store/apps/d...rfexpert&hl=en

[Frits Overmars]

Is there a phone app (Android) that one can stick on a phone in one’s pocket and do an acceleration run... Figuring I don’t want to be developing a dyno...

https://play.google.com/store/apps/d...ectPower&hl=en

Quote from the above website: "It will also allow you to perform motor development with efficiency thanks to its perfect regularity"

I don't doubt the perfect regularity of the app, but what about the regularity of track conditions, wind, tires? Building an inertia dyno can be quite simple, there will be hardly any need to develop it as the necessary software and electronics can be found all over the internet, and it will be a much better tool for engine development.

A couple of examples of simplicity:

[paul gane]

The 250G cylinder has much more modern transfer ports and ducts than anything previously.
Thus you could do the mods as per the Eckerold cylinder but using waisted studs allows the inlet to go even wider ( with a bridge of course ) allowing two extra boost ports
and you then dont have to add an Exhaust bridge as going 3 port is easy.
Turning the cylinder around is also easy and this makes the pipe headers straight, and then the inlet becomes dead straight onto the reed blocks with the carbs sitting horizontally.
The 350 period engine going into the LSR streamliner is as above, but uses a Banshee 58mm crank/115 rods with 61.5 Kawasaki pistons, making it a not so big overbore and close to square.

The 350 in the LSR streamliner, using the Kawasaki H1 61.5 pistons you used, were they the two ring road bike type, or special single ring one offs. I am interested in building a 350 based on the 61.5x58bore and stroke, did the engine perform up to expectations, any advice appreciated....

[wobbly]

The Wossner H1 pistons are two ring, but we only used the top ring as its pinned at 6 o'clock.
This ran over a welded in central port bridge that had added boost ports down each side.
The key to the whole engine is the 13mm locked in place studs, that can then be ground away to enable the added Aux ports
plus a huge intake.
The cylinder was reversed as well, as this took most of the piston thrust off the inlet,and made pipe routing easy.
Porting/pipes were set up in EngMod, and its performance exceeded all expectations with more than enough power to break the Pre 81 - 350cc records easily.
The setup was optimized to make 100 crank Hp at 11500 on 110 octane.
It ran overeving to 12,000 in 5th gear, as the shift mechanism would not select 6th under load,but would have gone at least another 15mph faster hitting peak power rpm in 6th.

[paul gane]

[QUOTE=wobbly;1131070937]The Wossner H1 pistons are two ring, but we only used the top ring as its pinned at 6 o'clock.
This ran over a welded in central port bridge that had added boost ports down each side.
The key to the whole engine is the 13mm locked in place studs, that can then be ground away to enable the added Aux ports
plus a huge intake.
The cylinder was reversed as well, as this took most of the piston thrust off the inlet,and made pipe routing easy.
Porting/pipes were set up in EngMod, and its performance exceeded all expectations with more than enough power to break the Pre 81 - 350cc records easily.
It ran overeving to 12,000 in 5th gear, as the shift mechanism would not select 6th under load,but would have gone at least another 15mph faster hitting peak power rpm in 6th.[/QUOTE


Wobbly, thanks for the info. I don't get the 13mm studs locked in place, how do these work.
This was a reed valve converted cylinder, what reeds did you use ?
Thanks for sharing......

[Nath88]

Any ideas?

I remember an app called GPS logger, I think it logged the other sensors as well. Produced a .csv file you could process later with excel. Hopefully the data rate of the phone GPS is enough to give you useable numbers.
If you could log wheel speed with something it would probably be a bit more accurate.

Very interested to see this thing under load. What are the port timing limits on the slide?