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FUEL INJECTION FOR JABIRU 3300 125HP

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silvercross

Joined: 25 Oct 2007
Posts: 1
Location: Melbourne, Australia

Posted: Thu Oct 25, 2007 6:43 pm Post subject: FUEL INJECTION FOR JABIRU 3300 125HP

Hi everyone. I am new to the site and am looking for information on what is required to install Fuel Injection on a Jabiru 3300 125hp engine. Is there a complete readily available for purchase kit? 



Anyone with experience on such an install? WHat is the projected benefits (i.e. power, fuel consumption, etc.) can I expect from such modification.



I am considering this for an aircraft I am thinking of building..

Thanks

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Peter H

Joined: 20 Mar 2007
Posts: 197

Posted: Thu Oct 25, 2007 8:50 pm Post subject: FUEL INJECTION FOR JABIRU 3300 125HP

Hi Silvercross (I don't have your name)

I am running a single throttle body with two injectors as a TBI installation

and still in the early stages of flight testing. The throttle body is made

to fit the Bing spigot hose.

The system was pioneered by Helmut Frensch and he posted pics on the Jabiru

Engines Yahoo list. What I like about this is that it is as simple and safe

and cost efficient as possible with a short fuel rail and HP hose unlike the

multipoint installation which would mean a HP fuel rail full length both

sides of the engine compt. and 6 injectors each costing $100.

We use a manifold sensor, an intake air temp sensor and a HE pickup. 

We use a 10K potentiometer as an optional manual trim for mixture so that

EGT can be optimized under any load conditions.

I am waiting on a price from an NC machine shop for local production of the

TB.

We are using a Haltech (automotive) ECU but it is an overkill and cost

$1000. I would consider the EC2 which has redundancy and is easily tuned in

flight, or the Megasquirt ECU.

At this stage I have not been able to fly full power and cannot comment on

power gain, but starting and full range operation is very smooth and there

is total control of mixture.

Peter H



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ultralight.flyer(at)gmail
Guest

Posted: Fri Oct 26, 2007 4:23 am Post subject: FUEL INJECTION FOR JABIRU 3300 125HP

I was thinking about a similar system to my Pioneer 200. Since i've saw the UL Power Engine... i donno. The only advantage regardless UL Power is that Jab have Hydraulic pushers and is not so expensive. UL Power already have injectors on standard models. 

 

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Miguel Maia de Loureiro

Ultralight Pilot Suport Services

Cel.: +351 91 419 21 04

e-Mail: ultralight.flyer(at)gmail.com (ultralight.flyer(at)gmail.com) 

  [quote][b]

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mhcrowder

Joined: 10 Jan 2006
Posts: 42
Location: Cary, NC

Posted: Mon Oct 29, 2007 9:27 am Post subject: Re: FUEL INJECTION FOR JABIRU 3300 125HP

Peter,



I remember seeing Helmut's posts on the Yahoo! group and was intrigued.  I always thought this would be something nice to experiment with after I got my plane in the air.  I'm really interested to hear your final results, both performance and price.



Please, keep use up to date!



--

Michael

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