[Gmecm] TBI for 455 Olds - 454 BINs
Bill Hamilton
scoutii76
Mon Jan 28 18:08:00 UTC 2013
The 94-95 bin will be for a PCM like the 7427. It will not work for the 7747 ECM.But the 7747 was used for the 700r4 so you can take a later 5.7/700r bin like the ARJU and just copy the 7.4l fuel tables and AE parameters since the 2" TBI dumps more air on tip in and the spark table.If you use tunercat you just right click in the table you are working with and select import. Then go tothe AZFT bin and click on it. The entire table will be copied and pasted into the new table. Now you will have a 7.4/700r4 bin. Once running you need to log data with something like winaldl so the chip can be fine tuned for the new engine.If you need help or files let me know. Done!HTHBillHamilton Fuel Injection
To: gmecm at diy-efi.org
From: dozierhc at aol.com
Date: Mon, 28 Jan 2013 11:35:06 -0500
Subject: Re: [Gmecm] TBI for 455 Olds - 454 BINs
Wade...
I think these two BINs are too old for you.
Ones is a manual trans, the other is a 3-speed (most likely TH400).
I think you need a later BIN for an early to mid 90s (94-95?) 7.4L (454) TBI with calibration/software for lockup control of that 700-R4.
I am going to guess (others chime in) that this would be for a pickup (1500) or maybe a light duy van? 7.4L TBI automatic with converter lockup control (NOT 4L80E).
If someone can provide that BIN (or link to me as to where to find it), then that is what you need to start with.
Hank
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1. Re: TBI for 455 Olds - 454 BINs (Wade )
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Message: 1
Date: Mon, 28 Jan 2013 10:10:36 -0600
From: "Wade " <wades at mountainmanmotors.com>
Subject: Re: [Gmecm] TBI for 455 Olds - 454 BINs
To: <gmecm at diy-efi.org>
Message-ID: <000a01cdfd72$01e13d50$05a3b7f0$@mountainmanmotors.com>
Content-Type: text/plain; charset="us-ascii"
I have a 700R in the Olds currently. I'd guess the gear ratio (since I
didn't install the rear end in this one) to be in the mid 3's.
Thanks.
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On Behalf
Of Robert Saar
Sent: Sunday, January 27, 2013 2:06 PM
To: gmecm at diy-efi.org
Subject: Re: [Gmecm] TBI for 455 Olds - 454 BINs
ANTZ = 1227747, 1987 R/V 2500/3500 454, 4 speed manual, 3.42/3.73 gears
AZFT = 1227747, 1987 G/R/V 2500/3500 454, 3 speed auto
HTH.
--- On Sun, 1/27/13, dozierhc at aol.com <dozierhc at aol.com> wrote:
From: dozierhc at aol.com <dozierhc at aol.com>
Subject: Re: [Gmecm] TBI for 455 Olds - 454 BINs
To: gmecm at diy-efi.org
Date: Sunday, January 27, 2013, 3:01 PM
Wade...
I have found what I think are two L19 454 (7.4L) BINs.
They are:
antz8364.bin
azft9503.bin
If anybody can give me information as to what these are (MY, transmission,
etc) then maybe one of these will work as-is or as a starter if changed are
needed due to injector differences, etc.
Hank
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1. Re: TBI for 455 Olds (Wade )
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Message: 1
Date: Sun, 27 Jan 2013 08:44:36 -0600
From: "Wade " <wades at mountainmanmotors.com
<http://us.mc1635.mail.yahoo.com/mc/compose?to=wades at mountainmanmotors.com>
>
Subject: Re: [Gmecm] TBI for 455 Olds
To: <gmecm at diy-efi.org
<http://us.mc1635.mail.yahoo.com/mc/compose?to=gmecm at diy-efi.org> >
Message-ID: <034a01cdfc9c$d462b9b0$7d282d10$@mountainmanmotors.com>
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Thanks Joe. I live in zip 37367. Could we calculate shipping to that zip
please?
Also, does anyone have the setup to take my existing ECM (I have the 7747
from a Truck - 1/2 ton Chevy and 350 engine) reprogrammed to the 454 specs
or to the 455 modified specs someone else referenced?
I'd appreciate it. My wife is really wanting to have a smoother running
engine in our Olds.
Thanks again to everyone's shared knowledge.
Wade.
-----Original Message-----
From: gmecm-bounces at diy-efi.org
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On Behalf
Of Joe Vitek
Sent: Friday, January 25, 2013 4:01 PM
To: gmecm at diy-efi.org
<http://us.mc1635.mail.yahoo.com/mc/compose?to=gmecm at diy-efi.org>
Subject: Re: [Gmecm] TBI for 455 Olds
I have two 80's Olds 7-pin distributors that I could send ya. I really only
need shipping plus a few bucks for gas. Cheap money.
Dang, this is the first time I have posted the list in like 10 years.
Then again, I am a die hard Olds guy... :)
--
joe
1988 Hurst/Olds 455ci. BBO EFI
1978 Olds Salon 350ci. SBO Olskool carb
On 1/25/2013 12:14 PM, Aaron wrote:
> First I should mention, all my experience comes from installation and
> some light tuning on two KITS sold for the 73-78 GMC Motorhomes.
>
> Howell EFI and Turbo City.
>
> http://howellefi.com/tbi-kit-455-gmc-motorhome-1973-78.html
>
> Turbo City may be out of business.
>
> They used GM part with the GM 7747 ECU. It made finding parts on the
> road easier than customer EFI.
>
> That Motorhome community is still very strong and active.
>
> http://www.gmcmotorhomes.com/clubs/directory.html
>
> Here is a Tech. webpage from the Eastern States GMC Club. It includes
> two articles on TBI for the 455 in these motorhomes.
>
> http://www.gmceast.com/technical/
>
> The good news about the distributor is the size. The 455, 403, 350 and
> 307 all used the same distributor shaft dimensions. The only
> difference that I ever noticed was the cap clocking position. Meaning
> the HEI cap has a tab that fits into a notch on the aluminum distributor
housing.
> Some Olds had the notch on the passenger side, some on the driver side.
> The housing can be notched to make the cap "clock" to the position
> that fits your needs. On the Motorhome, the HEI module to coil wires
> were longer than normal to reach the other clock position. This was
> the case in both the standard HEI and EST (Electronic Spark Timing)
distributors.
> We would buy rebuilt distributors from Napa or AutoZone or Rock Auto
> for a mid to late '80's Olds V8 that had the 7 pin module.
>
> The bad news is the Distributor to ECU wiring harness does not come
> with the rebuilt or new parts. We always searched the junk yards for
those.
> V6 or V8 HEI distributors with the EST system all had the same harness.
>
> Page 131 - 133 on this PDF shows the pictures of what I'm talking about.
> http://www.gmceast.com/technical/Waters_Howell_TBI_Installation.pdf
>
> As mentioned by another post, BEWARE of the Quadrajet to TBI adapter.
> One of the rear bolts in under the IAC passage AND it LEAKS !!! A LOT
> !!!! AND I spent way too much damn time looking for it !!!!
>
> Page 47 on this PDF shows the location.
> http://www.gmceast.com/technical/Waters_Howell_TBI_Installation.pdf
>
> As for the code, I think it started as the '89 Chevy C2500 .
>
> But I've can't research it any more now.
>
> Aaron
>
>
>
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