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

Wayne Jones fordguy74
Tue May 10 11:49:12 UTC 2005


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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