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Post by jetjeff on Oct 26, 2017 3:28:17 GMT -5
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Post by jetjeff on Oct 27, 2017 0:21:18 GMT -5
Hi All, At the request of a member I reloaded a bigger picture of the new wheel for my Kamps build. Regards Jeff
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chris
Member
Joined: April 2016
Posts: 24
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Post by chris on Oct 29, 2017 8:52:30 GMT -5
Hi Jeff
Nice looking turbine! Did you grind the blades to the angle you required or did you bend the blades.
Regards
Chris
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Post by jetjeff on Oct 29, 2017 11:41:26 GMT -5
Hi Chris,
Thanks. The blades were ground to the airfoil shape after twisting. The original turbine wheel blades were profiled totally wrong. I can't say the turbine will run with the new wheel, but it's worth a shot.
Regards
Jeff
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Post by jetjeff on Oct 30, 2017 0:19:06 GMT -5
Hi All. Here is a pic of the two wheels for comparison. As you can see the original wheel had the blades profiled from the rear of the turbine,,,what was I thinking,,,lol. Regards Jeff
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Post by jetjeff on Nov 6, 2017 0:53:42 GMT -5
Hi All, I was able to swap out the turbine without complete disassembly of the engine. The old wheel was fouling the NGV blades, causing the front of some of the blades to be removed. The new wheel was made from .187" stainless vs .120" of the old one, which spaces the blades about 1/32" further away from the NGV blades. Regards Jeff
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Post by jetjeff on Nov 17, 2017 16:52:32 GMT -5
Hi Guys,
The new turbine wheel on my Kamps build shows promise. I had it up to 4 PSI case pressure in a test run yesterday, the most pressure of any turbine I've built to date.
I'll upload a video when I have a chance.
Regards
Jeff
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Post by jetjeff on Nov 20, 2017 13:34:56 GMT -5
Hi Guys, My Kamps build runs with the new turbine wheel, despite the mismatch of compressor (80 mm) to turbine (90 mm). Wooooo Hooooo!!!! Regards Jeff youtu.be/PnRuXQP9U-A
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BFTO
Veteran Member
Joined: February 2016
Posts: 128
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Post by BFTO on Nov 20, 2017 13:55:02 GMT -5
Congrats Jeff! Temps?
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Post by jetjeff on Nov 20, 2017 14:01:59 GMT -5
Thanks, No temp sensor on my test stand other than a visual of the wheel. In looking at the video, when I tried giving it more fuel, the NGV blade at roughly the 7 o'clock position started to glow orange, the others almost seemed cold. That run shown was only at about 2.5 PSI of case pressure (and a paltry 3.5 lbs of thrust), but I had it up to 4 PSI yesterday. Regards Jeff
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Post by racket on Nov 20, 2017 16:07:51 GMT -5
Hi Jeff
She runs sweet :-)
Are you running propane only , or is there kero as well ??
If kero, then the "bottom" injectors can flow a tad more due to the hydrostatic head of fuel increasing the "pressure" , especially if very low fuel pressures are being used as can happen at the sort of P2s you're running at present, once up to higher power settings the hydrohead becomes less of the total pressure and things tend to even out .
Cheers John
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Post by jetjeff on Nov 20, 2017 16:30:14 GMT -5
Hi John,
Thanks.
Propane only.
I understand what you mean about the bottom injectors.
I'm hesitant to really pour the coals to it as I detected vibrations in the engine when running,,,not a paint shaker, but not correctly balanced with a turbo charger balancer.
Regards
Jeff
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Chuks
Senior Member
Joined: August 2015
Posts: 498
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Post by Chuks on Nov 20, 2017 16:51:17 GMT -5
congrats Sir,
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Post by racket on Nov 20, 2017 17:32:13 GMT -5
Hi Jeff
So what sort of lube system are you using ?
Could your "hot spot" be lube burning ??
Cheers John
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Post by jetjeff on Nov 20, 2017 18:24:49 GMT -5
Hi Chuksy / John,
Just the typical Kamps lube system, case pressure pushing oil (Valvoline 2 cycle oil at the moment, but I do have turbine oil), to the bearings, total loss bearing lubrication.
A special thanks to Chuksy someone who has the talent to build a turbine despite insurmountable odds of living in a country with limited access to materials, we would otherwise take for granted. What an inspiration to me, he has been.
Currently working on Heineken part II, stay tuned.
Regards
Jeff
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