[Gmecm] SB Chevy in boat

[Don Sauman]

Hi Steve

There was a guy on this list some time ago who was offering information 
on TBI conversions for Jeeps. If I remember right, the same person 
talked about boat applications. Initially the system was run without an 
O2 sensor in open loop mode. He then said that he had worked out a way 
of getting an O2 sensor to work. I realise that is kind of muddled but I 
am working from memory.

I would be happy to work open loop.

As far as the O2 sensor is concerned, on my I-6 there is one point where 
I can access exhaust gas at the end on the water jacket and just before 
the exit water injection. I think mine is not quite standard.

Cheers
Don


Steve Ravet wrote:

> 
>
>  
>
>>-----Original Message-----
>>From: gmecm-bounces at diy-efi.org 
>>[mailto:gmecm-bounces at diy-efi.org] On Behalf Of Don Sauman
>>Sent: Wednesday, August 16, 2006 1:53 AM
>>To: gmecm at diy-efi.org
>>Subject: [Gmecm] SB Chevy in boat
>>
>>Guys
>>
>>I am looking at replacing the I-6 250ci Chevy/Mercruiser 
>>engine in my 21' deep V offshore sport boat.
>>
>>I have 8.5CR Chevy 350 short motor which I will build with (probably)
>>LT1 heads and a TBI manifold. I have a TBI unit ex a C/K 
>>truck and a couple of 1227747 ECM and vehicle wiring diagrams.
>>
>>Can I get some advice on: code for ECM ie BCC etc,  best 
>>ignition system for this application, camshaft type, or any 
>>other comments.
>>    
>>
>
>Hi Don, let me add another question to yours.  How do you tune a boat
>installation?  In an I/O boat (for those who don't know) the exhaust
>manifold is cast with a water jacket around it, and water is injected
>into the exhaust so that it can pass through rubber bellows on it's way
>out the stern drive.  It doesn't seem like there's a way to install an
>O2 sensor.  I have a Mercury only block, 215 CI or so 4 cyl aluminum
>block so there's no factory efi.
>
>--steve
>
>
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-- 
Don Sauman
Cythera Communication
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Carlisle 6101
Western Australia

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