RE: RE: Fuel Mix Computer

From: Bernd D. Ratsch (bernd@dodgetrucks.org)
Date: Tue Mar 25 2008 - 16:29:15 EDT


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&pageNum
> =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
>>>>
>>>>
>>>
>>>
>>
>>
>
>



This archive was generated by hypermail 2b29 : Tue Apr 01 2008 - 00:20:40 EDT