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Offline citabjockey

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Transfer Port Injection
« on: March 16, 2017, 07:32:29 AM »
Uniflow -- you get royalty checks for your transfer port injection invention???

http://enduro21.com/index.php/40-general/1966-ktm-officially-confirm-fuel-injected-two-stroke-enduro-bikes-due-may
Yamaha CT3, RT3, MX125, SC500, Toy Prius, Diesel F250 (it all balances out)

Offline Coop

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Re: Transfer Port Injection
« Reply #1 on: March 16, 2017, 09:48:24 AM »
- Mike - Don't take life so seriously, nobody gets out alive.

Offline Flettner

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Re: Transfer Port Injection
« Reply #2 on: March 16, 2017, 11:44:16 AM »
Uniflow -- you get royalty checks for your transfer port injection invention???

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Yeah right, I'll wait by the letter box.

Kawasaki doing secret testing of their Euro4 TPI F9 last weekend in an NZ forest. Can you spot it;D
https://youtu.be/ZqzOgOJuJ1E
« Last Edit: March 16, 2017, 11:48:41 AM by Flettner »

Offline rsmith

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Re: Transfer Port Injection
« Reply #3 on: March 16, 2017, 02:27:43 PM »
While the money would be nice, it has to be a bit rewarding to have the design validated at that level.

--Ron.

Offline Flettner

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Re: Transfer Port Injection
« Reply #4 on: March 17, 2017, 01:19:11 PM »
Well yes, perhaps I wasn't completely full of shit after all.
I'm keen to finish the RV 360 EFI engine, but I'm on the lookout for a YZ250 (04 onward) gearbox as I pinched the one I had for the sleeve valve engine. I have leads on two units at the moment.
I'm finishing up the cylinders (some spares) now, cast at home, next week off for nikasil.

https://youtu.be/UdSw3QbZtKE
« Last Edit: March 17, 2017, 01:24:41 PM by Flettner »

Offline _X_

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Re: Transfer Port Injection
« Reply #5 on: March 17, 2017, 01:55:19 PM »
Dr. Flettnerstien's Monster

Offline rsmith

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Re: Transfer Port Injection
« Reply #6 on: March 17, 2017, 07:48:49 PM »
I was talking to a KTM dealer service manager today who seemed to know a bit about the new system.

I asked about how they are going to oil it. He said oil injection straight to the bearings, but I have to think they are going to need to do some kind of mister system for the small end bearing / piston / rings.

How did you deal with the oiling?

--Ron.

Offline Flettner

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Re: Transfer Port Injection
« Reply #7 on: March 17, 2017, 09:14:33 PM »
On the YZ we made a small solenoid operated valve that opened after 60% throttle, before the reed block. Ran a lean pre mix as well.
On my 360 I've got an oil pump (TS100 I think) feeding straight into the big end through the hollow crank shaft. Oil should leave/ fling off the big end and head for the cylinder and small end, mains sealed off.
On the DTPI Kawasaki, I just run pre mix as the injectors are in the crank case aiming at the transfer intakes. Seems enough oil is deposited to keep thing from going dry.
« Last Edit: March 17, 2017, 10:10:11 PM by Flettner »

Offline eprovenzano

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Re: Transfer Port Injection
« Reply #8 on: March 21, 2017, 07:57:20 AM »
WOW...  holy chit...  I will be watching intently to see how they perform... 
Eric Provenzano
2019 KTM 300 XCW TPI
2000 KTM 300 EXC (Son's)
2001 KTM 380 EXC
Sold 1991 KDX 200... fun play bike
Sold 1999 KX250
Sold 1999 YZ125 (son's)
Sold 2001 Yamaha TTL 125 (son's 1st bike)
Sold but never forgotten 1974 Honda Elsinore CR250M
Sold 1974 Honda Elsinore CR125

Offline rsmith

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Re: Transfer Port Injection
« Reply #9 on: March 21, 2017, 01:43:43 PM »
I am going to try to get KTM to let me ride one!

I'm not holding my breath mind you.


--Ron.

 
WOW...  holy chit...  I will be watching intently to see how they perform... 

Offline Coop

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Re: Transfer Port Injection
« Reply #10 on: March 22, 2017, 09:22:54 AM »
I am going to try to get KTM to let me ride one!

I'm not holding my breath mind you.


--Ron.


That's awesome, good luck :) .
- Mike - Don't take life so seriously, nobody gets out alive.

Offline citabjockey

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Re: Transfer Port Injection
« Reply #11 on: March 23, 2017, 06:46:53 AM »
KTM will gladly let you ride one -- if you hand them a check for $11k
Yamaha CT3, RT3, MX125, SC500, Toy Prius, Diesel F250 (it all balances out)

Offline rsmith

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Re: Transfer Port Injection
« Reply #12 on: March 23, 2017, 02:57:21 PM »
KTM will gladly let you ride one -- if you hand them a check for $11k


I was kind of hoping for a more economical introduction....

--Ron. 

Offline Flettner

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Re: Transfer Port Injection
« Reply #13 on: June 15, 2017, 12:14:39 AM »
https://transmoto.com.au/wp-content/uploads/2017/05/KTM20182TLaunch_49.jpg

See the three cylinder developments, starting with the DI Orbital system. Finishing with our own TPI seen on TSM five years ago.
« Last Edit: June 15, 2017, 12:16:54 AM by Flettner »

Offline rsmith

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Re: Transfer Port Injection
« Reply #14 on: June 16, 2017, 10:30:37 PM »
DI is the "future" but dang is sure looks complicated.

--Ron.