[DeTomaso] Coil Packs

Tue Aug 7 11:56:32 EDT 2012

Gary,

Looks like you are well ahead of me on this one.   I was feeling too cheap for the LM-1 and found a kit for a O2 sensor board from a German electronics newsletter.  I am guessing the author works at Bosch or one of the car companies.  In reality,  I tend to dream up many more projects than I actually get to, so I will probably just buy a data logger for the tuning.  

I've always felt that carbs were intimidating to folks mostly because all the work is being done open loop.   Occasionally you find a seasoned expert who had a few closed loop tricks, like reading plugs and knowing what changing emulsion tubes will feel like in the seat of the pants, but I expect many carb issues could be solved by putting on a 02 sensor and going closed loop. 

Good luck with the tuning and please keep us posted.   

Love the pictures!

David

________________________________
 From: "gow2 at rc-tech.net" <gow2 at rc-tech.net>
To: David D Fisher <fisher95020 at yahoo.com> 
Sent: Tuesday, August 7, 2012 5:18 AM
Subject: Re: [DeTomaso] Coil Packs

Dave, I am a big fan of the O2. I have worked with the O2 on a couple
engines. I have an Innovative LM-1 which I have tuned a number of engines
including my tractor engine.

With the MGB I moved to an in dash gauge. It did not really fit the gauge
cluster so I hid it behind a radio delete plate with a vacuum gauge:

http://www.rc-tech.net/cars2/mg2/cleanup/gp2.jpg
http://www.rc-tech.net/cars2/mg2/cleanup/gp3.jpg

I am thinking of doing something similar in the Pantera.

With the exhaust system I built for the Pantera I have individual runners
which extend all the way to the back of the car so I put in bungs on each
runner; which is good because each Weber is divided by left side and right
side. With 4 Weber's you basically have 8 carbs.

If you look toward the bottom of the photo you can see the ungs on the
right side and one has an Oxygen sensor plugged in:

http://www.rc-tech.net/cars2/panttransam/cp.jpg

Gary

> I am planning to make an O2 sensor that I can move from car to car to set
> up carbs and log data under road conditions.   I expect that might be
> fairly helpful for getting a multi carb setup optimized.    I have a 4
> carb Alfa and a 3 carb Jag.
>  
> However, at the rate I am moving,  it will probably not happen till next
> year.  In the mean time,  I'll be watching to see what you learn and see
> if I get more optomistic or less on the Webers :-)
>  
>  
> David
>  
>
>
> ________________________________
>  From: "gow2 at rc-tech.net" <gow2 at rc-tech.net>
> To: David D Fisher <fisher95020 at yahoo.com>
> Sent: Monday, August 6, 2012 12:52 PM
> Subject: Re: [DeTomaso] Coil Packs
>
> Thanks Dave, I am new to Webers. I know some guys around here have a lot
> more experience then I. I can tell you off the bat what I really like is
> the ease at which you can change the jets and emulsion tubes.
>
> Gary
>
>> Gary,
>>  
>> I just found your website and am watching with great interest.    I'd
>> love
>> to hear your experience with the Webers (I think that is what i see in
>> the
>> pic) as your motor work progresses.
>>  
>> David
>>  
>>
>>
>> ________________________________
>>  From: "gow2 at rc-tech.net" <gow2 at rc-tech.net>
>> To: detomaso at realbig.com
>> Sent: Monday, August 6, 2012 6:04 AM
>> Subject: [DeTomaso] Coil Packs
>>
>> Just thought I would pass on some progress. Got the distributor cut down
>> Saturday as well as the timing gear and mounting plates for the coil and
>> cpu. Got if fired up last night on the engine stand.
>>
>> Plug wires are just make shift till I get it in the car and see what I
>> need. I need to get the motor cleaned up. It is still dusty from when I
>> did all the body work.
>>
>> Setting timing is a no brainer. Feels like cheating.
>>
>> http://www.rc-tech.net/cars2/panttransam/cc.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/cpu.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/cp.jpg
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