RE: RE: Fuel Mix Computer

From: Bernd D. Ratsch (bernd@dodgetrucks.org)
Date: Tue Mar 25 2008 - 17:41:01 EDT


If you leave all the AFC settings at "0", no harm at all. Just make sure
you have all the other stuff set correctly. I'll send you the connections
and basic AFC settings later on this evening.

- Bernd

-----Original Message-----
From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
Sent: Tuesday, March 25, 2008 4:14 PM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: Fuel Mix Computer

Never mind...I have a '93 FSM...
So that's all the connections that need to be made? That's it? Sounds
simple.
How important is it to get it dyno tuned? Can it be driven safely with out
a dyno tune for a while?

--------------------------------------------------
From: "Bernd D. Ratsch" <bernd@dodgetrucks.org>
Sent: Tuesday, March 25, 2008 4:29 PM
To: <dakota-truck@dakota-truck.net>
Subject: RE: DML: RE: Fuel Mix Computer

>
> Since different year models use different wires (thank you Chrysler),
> all you need to know is TPS, MAP, Primary Coil, ,Power, and ground
> connections.
> There's quite a few Viper guys running the APEXi SAFC and SAFC-II ('94
> -
> 2004 models) so OBD1/OBD2 doesn't matter one bit.
>
> What year Ram do you want?
>
> - Bernd
>
> -----Original Message-----
> From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
> Sent: Tuesday, March 25, 2008 3:06 PM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: RE: Fuel Mix Computer
>
>
> I've checked their website for a wiring diagram but they just have
> them for the imports available. Can you email me the diagram for the
> one you've installed on the OBD I Ram?
>
> Thanks,
> James
>
> --------------------------------------------------
> From: "Bernd D. Ratsch" <bernd@dodgetrucks.org>
> Sent: Monday, March 17, 2008 4:32 PM
> To: <dakota-truck@dakota-truck.net>
> Subject: RE: DML: RE: Fuel Mix Computer
>
>>
>> Yup...that's the one. I have the older model (AFC-2) on my '97.
>> Wiring is the same though. I can email you the wiring connections
>> off-list if you decide on that model.
>>
>> - Bernd
>>
>> -----Original Message-----
>> From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
>> Sent: Monday, March 17, 2008 3:08 PM
>> To: dakota-truck@dakota-truck.net
>> Subject: Re: DML: RE: Fuel Mix Computer
>>
>>
>> Bernd,
>>
>> Is this the one you have installed? Is this what I would use an an
>> '93 OBD I?
>>
>> http://www.apexi-usa.com/product_electronics_detail.asp?id=260&pageNu
>> m
>> =1
>>
>> I could install it myself and get it close then take it to the speed
>> shop to dial it in? Or should I just have them do the whole thing? I
>> built the engine so mechanical and electrical work isn't a problem.
>>
>> Thanks,
>> James
>>
>> --------------------------------------------------
>> From: "Bernd D. Ratsch" <bernd@dodgetrucks.org>
>> Sent: Sunday, March 16, 2008 10:13 PM
>> To: <dakota-truck@dakota-truck.net>
>> Subject: RE: DML: RE: Fuel Mix Computer
>>
>>>
>>> Inexpensive, easy to use, multiple fuel curve programs (can change
>>> them on the fly) and the "cool factor". :)
>>>
>>> Definitely find a local shop that can dyno tune the fuel system -
>>> the performance gains (and fuel economy if tuned properly) outweigh
>>> the headaches associated with custom flashes and/or "chips".
>>>
>>> - Bernd
>>>
>>> -----Original Message-----
>>> From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
>>> Sent: Sunday, March 16, 2008 12:06 PM
>>> To: dakota-truck@dakota-truck.net
>>> Subject: Re: DML: RE: Fuel Mix Computer
>>>
>>>
>>> It seems the best route to go is to find a local speed shop that
>>> does tuning
>>>
>>> and has a dyno, correct?
>>> Why did you chose Apexi?
>>>
>>> --------------------------------------------------
>>> From: "Bernd D. Ratsch" <bernd@dodgetrucks.org>
>>> Sent: Sunday, March 16, 2008 12:08 PM
>>> To: <dakota-truck@dakota-truck.net>
>>> Subject: RE: DML: RE: Fuel Mix Computer
>>>
>>>>
>>>> Anytime you use a fuel management system, you'll need to put it on
>>>> a dyno for proper tuning. You can, however, use your O2 sensor for
>>>> a baseline tune (watching you're A/F in the process).
>>>>
>>>> Also, if you plan on just using a "custom flashed" PCM...BEWARE -
>>>> they are not tuned to your specific vehicle and can only come close
>>>> to what you need.
>>>> You canhave two identical vehicles with identical modifications and
>>>> the tune will be different (timing and/or fuel requirement). It
>>>> depends on too many variables to say that one "custom flash" will
>>>> work for all in that range.
>>>>
>>>> - Bernd
>>>>
>>>> -----Original Message-----
>>>> From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
>>>> Sent: Sunday, March 16, 2008 9:45 AM
>>>> To: dakota-truck@dakota-truck.net
>>>> Subject: Re: DML: RE: Fuel Mix Computer
>>>>
>>>>
>>>> Are these units user friendly or do they need to be installed and
>>>> tuned using a dino? It would be used on and OBD I Dakota with a
>>>> lumpy
>> cam.
>>>> Any
>>>> other suggestions would be helpful.
>>>> Thanks,
>>>> James
>>>>
>>>> --------------------------------------------------
>>>> From: "Bernd D. Ratsch" <bernd@dodgetrucks.org>
>>>> Sent: Sunday, March 16, 2008 12:01 AM
>>>> To: <dakota-truck@dakota-truck.net>
>>>> Subject: DML: RE: Fuel Mix Computer
>>>>
>>>>>
>>>>> There are several different ones out there that can help correct
>>>>> the fuel mixture - SplitSecond, Apexi (the one I use), AEM, and
>>>>> quite a few others.
>>>>>
>>>>> - Bernd
>>>>>
>>>>> -----Original Message-----
>>>>> From: Jamie Calder [mailto:JCalder3@cfl.rr.com]
>>>>> Sent: Saturday, March 15, 2008 10:56 PM
>>>>> To: dakota-truck@dakota-truck.net
>>>>> Subject: DML: Fuel Mix Computer
>>>>>
>>>>>
>>>>> I'm trying to remember the name of the piggyback computer that
>>>>> controls air/fuel. I remember it was expensive and it could only
>>>>> be installed by someone with a dino that could dial it in. It was
>>>>> talked about here a couple years ago.
>>>>> Thanks,
>>>>> James
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>



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