[Gmecm] converting 4cly distributor 1227808 to V8 DIS ignition.

Tue May 10 23:05:26 UTC 2005

There is a myriad of things there that need to be addressed.

Primarily - You're talking about a boosted engine here, an 808 in it's
standard form is not going to like boost that much.

2, Memcal - You are going to need to find a memcal that supports v8 DIS
in another car.  It's going to need to be from an 808 or 165.  AFAIK, no
v8's here with the 808 used DIS so I'm thinking it's going to be a 165.
You'll need this for the limp home resisters at least. The loom would
probably help as well, although one from a commo would probably suffice.

3, To do any programming (which you will have to) you're also going to
need an ECU file that matches the binary on the memcal you find. If one
does not exist it's going to make life very hard for you.

Kalmaker sell 'Corevette LT5 V8 Coilpacks and these can be run easily on
most Delco computers' (according to their site).

I think that, in your case, kalmaker would likely be your only solution
(if you want to hang on to the 808/165).  It'd still work out cheaper
than most other AM ECU's tho.  This would enable you to get away from
the issues of boost, memcal and ecu file.  Not only this, according to
them they can give you v8 DIS.

Andrew

-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
Behalf Of Wayne Jones
Sent: Tuesday, 10 May 2005 9:19 PM
To: gmecm at diy-efi.org
Subject: [Gmecm] converting 4cly distributor 1227808 to V8 DIS ignition.

hi,
i Am new to this list so please excuse the poor terminology i may use
and 
feel free to correct anything i say.
I am from australia thus the '808 which is similar to the '165, i have a

computer from a holden camira which uses the same ECM as Astra and some 
commodores.
I want to use this computer on a Ford 351c engine with 671 supercharger 
pushing only small amout of boost. I plan to modify the intake manifold
to 
except injectors and was hoping to do away with the dizzy in favour of a

distributor less ignition systems. (DIS??)
The problems i face and hopfuly you can help with are:
-Will this ECM do the job i have just described?
- The ECM i purchased came from a distributor car wheres the same ECM is

used on distributor-less igition systems on the VN V6, wheres the same 
commodore in V8 went back to distributor. In the FTP section there is
some 
wireing diagrams of the various ways this computer has been used. I herd

somewhere it is simple to convert distributor to DIS by simply replacing
the 
6cyl coilpacks and module, with the same set up from a v8 vehicle. Sound

advice except we did not get a DIS V8 with this ecm that i am aware of.
i 
had a look at the  1227165 manuals but they arnt the best ive seen plus
do 
not know much between the 165 and 808. I herd once that LT5 Corvette DFI

Coilpaks can be used on v8's that wish to use the 808?? What are my 
options?? Has anyone done this before, or is there a "165 DIS that i can

substitute the DFI from???
- Can i simply wire the injectors the same way the V8 808 is wired or
would 
there be some underlying thing i have missed, (i have been led to
believe 
the computers on all the vehicles are identical just the chip and loom
and 
sensors was played with)
- If i do change from Dizy to DIS will the engine still run or would the

chip programming be completly wrong, If the chip is an issue would the 
corrections be difficult? In RT cat there is a slide bar which allows
you to 
change the number of cylinders, would i be best taking a DFI V6 chip and

increasing the cylinders, or correcting the spark table of the V8 chip, 
would i even have to correct anything major? Is it possible to use a 165
DFI 
chip if one exists??
- Can someone please exlain what what "All use the 1227808 ECM which is 
equivilant to Corvette's 1227165, but without U2 (the SXR chip),
limiting 
them to 160 baud ALDL data." What is baud Data is this the amount of 
information a chip can store?? sorry i know this is a real nebie
questions.
- Can anyone point me in the right direction for learning all the obious

sort of stuff so i do not have to ask stupid questions, i have had a
brief 
loook through the archives and am presently reformating them into a more

readable format and hopfuly a search function to be placed on a webpage
(if 
no one objects) Is there any good reading on theP4 or delco systems to
help 
me along ??
i have plenty more questions but ill get these sorted first :)
thanks in advance.
-Jonesy-

Why did the Co-Co Pops run away???
Because they herd the Cereal Killer was coming!!!

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