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Author Topic: APS/Ω Gas turbine bike build  (Read 545047 times)
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Old Scrambler
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Going Fast - Slowly




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« Reply #630 on: July 25, 2014, 03:44:09 PM »

Very Well Done cheers cheers cheers

No fires; no crashes; but H.D has spies everywhere cheesy cheesy

Talk to me before you get ready for an IPO on the stock market wink

Hope to meet on the great white dyno cheers cheers cheers
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2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2018 AMA Record - 750cc M-CG HONDA CB750 sohc - 136.6 mph
2018 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 143.005 mph
2018 AMA Record - 750cc M-CF HONDA CB750 sohc - 139.85 mph
2018 AMA Record - 750cc MPS-CF HONDA CB750 sohc - 144.2025 mph

Chassis Builder / Tuner: Dave Murre
Mobacken Racing
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« Reply #631 on: July 25, 2014, 03:51:30 PM »

Anders, Outstanding sir! Looks like she rides and handles well. Here's to that hard earned beer!  cheers  cheers

Thank you! It handled very well actually, I expected worse from a long hardtail frame. An Austrian gas turbine guy at the JATO forum actually sent me 30 euros on Paypal for beer money after he saw the road test.  cheers

Very Well Done cheers cheers cheers

No fires; no crashes; but H.D has spies everywhere cheesy cheesy

Talk to me before you get ready for an IPO on the stock market wink

Hope to meet on the great white dyno cheers cheers cheers

Thank you! I really look forward to meeting all you great people here at the salts one day, I won´t go before I have everything sorted out for obvious reasons but at least it doesen´t feel nearly as far away as it did a week ago. smiley

Cheers!
/Anders
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Glen
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« Reply #632 on: July 25, 2014, 04:34:26 PM »

Has that great sound of the Turbinator II, we are ready for Speed Week. cheers
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Glen
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tauruck
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« Reply #633 on: July 26, 2014, 12:02:54 AM »

30 Euros!!!!. For beer money. That was nice of him and I understand why he did it,
You could get pretty wasted over here on 30 Euros. 425 bucks for beer. grin
Enjoy it man, you really deserve it. cheers cheers cheers
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Mobacken Racing
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« Reply #634 on: July 26, 2014, 01:09:33 PM »

I ran this summers most important 1/2 marathon today, 1:27:27 in 28°C heat and a 10th place which I am very satisfied with. Improved my PB with three minutes despite the weather. Afterwards Ralphs (the austrian turbine guy) beer money rejuvenated me. Smiley



When I got back home I tested the temp probes against an identical one, and they showed similar enough results all the way up to 900°C. I can count temp gauge error out then.



Cheers!
/Anders
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Ellwood
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« Reply #635 on: July 26, 2014, 02:25:01 PM »

my knowledge of turbines is of a very limited and insufficient kind, but would an intake booze bottle or water injection bring the the unwanted high temperatures down somehow?
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Mobacken Racing
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« Reply #636 on: July 26, 2014, 02:55:20 PM »

my knowledge of turbines is of a very limited and insufficient kind, but would an intake booze bottle or water injection bring the the unwanted high temperatures down somehow?

It would, but that would only hide the problem and not cure it. I will test water injection later to squeeze the last power out of the engine but not until I have fund out what it is capable of as it is now.
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saltwheels262
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« Reply #637 on: July 26, 2014, 07:36:41 PM »

very nice. Congrats.

good English, also.

Bf
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bub '07 - 140.293 a/pg   120" crate street mill  
bub '10 - 158.100  sweetooth gear
lta  7/11 -163.389  7/17/11; 3 run avg.-162.450
ohio -    - 185.076 w/#684      
lta 8/14  - 169.xxx. w/sw2           
'16 -- 0 runs ; 0 events -- made a 2 state change in ZIP codes

" it's not as easy as it looks. "
                            - franey  8/2007
FBR81
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« Reply #638 on: July 26, 2014, 09:45:49 PM »

 cheers
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Mobacken Racing
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« Reply #639 on: July 27, 2014, 05:10:37 PM »

Thanks! smiley

I removed the gearbox and power turbine from the bike today for the upcoming test where I will run the gas producer with only a temp probe and a short section of pipe without a jet nozzle.



While I had the freepower section removed I wanted to see how the internals of the gearbox was holding together, so I removed the C20 turbine wheel and found this:



Hmm, must be oil from the bearing lubrication that has overheated. That might be the cause for the slight rubbing I could feel when turning the input shaft, it called for further investigation.



It wasn´t hard to spot the problem, the composite cage for the front hybrid bearing had melted as you can clearly see in the pic below. Good thing that I decided to check since another run with this bearing could have ended in disaster.



It wasn´t completely unexpected, I had hoped that the bleed air flow through the bearing would keep it cool enough for the cage to survive but that was clearly not the case. Before spending even more money on a full complement ceramic bearing I will try a standard steel C3 bearing and see how well it survives, if I´ll make sure not to overspeed the gearbox perhaps it can endure the stress.

Cheers!
/Anders
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Mobacken Racing
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« Reply #640 on: August 11, 2014, 02:16:29 PM »

I am back from a 10 day vacation trip so in a day or two I will start making a tachometer for the engine.

In my swedish build thread at a sportbike forum I was congratulated for an article in The Kneeslider that I didn´t know of, very fun to get attention without even asking for it. smiley

http://thekneeslider.com/building-a-turboshaft-powered-motorcycle-land-speed-racer/

Cheers!
/Anders
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Freud
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« Reply #641 on: August 11, 2014, 07:01:45 PM »

I hope your vacation wasn't at Wendover.

FREUD
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Since '63
charlie101
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« Reply #642 on: August 12, 2014, 11:32:36 AM »

30 Euros!!!!. For beer money. That was nice of him and I understand why he did it,
You could get pretty wasted over here on 30 Euros. 425 bucks for beer. grin
Enjoy it man, you really deserve it. cheers cheers cheers

You got me to checkup! Then I  saw you are in South Africa!
30 EUR = 40 USD
30 EUR = 426 ZAR
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« Reply #643 on: August 12, 2014, 04:11:07 PM »

Dead right Charlie. 24 cans for $15 and don't let the price fool you. The beer is top notch. grin

http://www.makro.co.za/liquor/beer-LB
« Last Edit: August 12, 2014, 04:13:18 PM by tauruck » Logged

racer
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« Reply #644 on: August 12, 2014, 10:19:28 PM »

Amazing engineering.......
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Ray C Wheeler
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