Sounds like a very nice implementation! Great job you guys!
At what level of boost do you start running into issues (preignition/overhea
ting/twisted crank etc)?
I wonder if the very nicely executed rotec sprayer, with its built in intern
al regulator (should work beautifully in a blow-through configuration as lon
g as the supply fuel pressure is greater than the airbox press.).
https://www.rotecaerosport.com/tbi
Very high quality machined piece, with some nice features, better atomizatio
n, much simpler than those horrible bings etc.
Cheers!
Pete
> On Dec 25, 2017, at 8:46 AM, William Daniell <wdaniell.longport@gmail.com>
wrote:
>
> Pete,
>
> this is a colombian adaptation for a 80hp 912. The Colombians claim that t
hey turbo'd the 912 before rotax which might be true given the topography.
Truth is wierder than fiction in Colombia. Or it might not.
>
> My guy makes the exhaust system. It has a small truck turbo (doesnt reall
y matter which) controlled by a vernier. A garret might be better but it wo
rks fine as it it. My Savannah has a mitsuibishi turbo and my Europa has an
IVECO turbo. He also made the airbox and put in the oil supply and scaveng
e for the turbo. You need a 914 fuel regulator.
>
> The turbo is in the same place as the 914 turbo.
>
> You need to fit the pressure normalizing tubes between the airbox and the c
arbs and fit bigger main jets so it runs cooler. You need to tighten the cl
amps on the carb rubber too. You need nitrile gaskets for the carb bowls.
There's some fun stuff in it too. There is a ball valve on the oil inlet t
o the turbo which which stops the oil leaking out through the turbo when the
engine is shut down. This ball valve is always held in place with the ball
point pen spring.
>
> The system uses the mechanical fuel pump from the 912 and an electric pump
which means that if you have an electrical failure the engine doesnt stop.
My engine will run at about 28" without the electric pump.
>
> And that's about it. The net result is a turbo normalized 912 for less th
an USD25k. I run mine at 33" unless I have a heavy nephew on board. Yester
day we took off at 35".
>
> Its pretty simple and the manual wastegate doesn't really complicate thing
s. You can control power with the wastegate or the throttle. I am comforta
ble with this because I have been flying with one for 10 years now in my Sav
annah. And in the worst case with no turbo and no electrical system you sti
ll have a 912. You can see photos at https://sites.google.com/site/europ
aconstructionwd/
>
> Will
>
>> On Dec 25, 2017 07:52, "Pete" <peterz@zutrasoft.com> wrote:
>>
>> Happy holidays Will!
>>
>> "912 turbo" aftermarket? (Can we have more info?) or 914 turbo?
>>
>> Cheers and thx,
>> Pete :)
>>
>> > On Dec 25, 2017, at 7:11 AM, William Daniell <wdaniell.longport@gmail.c
om> wrote:
>> >
>> > Yesterday I took off with my nephew who 220lbs, I'm 198 with full fuel m
aking us 16lbs over mtow.
>> >
>> > .......and the density altitude at skgy (8500) was just under 10k. We
climbed at 400/min to 10500.
>> >
>> > It is a remarkable machine.
>> >
>> > Happy holidays to all
>> >
>> > Will
>> > HJ460
>> > Tri 912 turbo airmaster
>>
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