[Diy_efi] ECM for 1990 Nissan 240
jasonrgrady at earthlink.net
Tue Mar 22 19:23:31 CST 2005
What's a dizzy fired application?
3rd gear, 3500 rpm, and 1500 ft. before the next braking point...
nothing could be better than this...
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]
On Behalf Of J
Sent: Tuesday, March 22, 2005 7:11 PM
To: diy_efi at diy-efi.org
Subject: Re: [Diy_efi] ECM for 1990 Nissan 240
>>Anyone have suggestions for which GM ecu to use?
I personally like the '7730 ECM. It was used in a dozen or more factory
applications, so it can easily be found at a junkyard, it came stock on
4-cylinders in the Beretta's, Corsica's, and Tempest's (possibly others
well) so you know it's 4-cyl compatible, and it uses an easily removable
memcal. It was also used in V8 applications (90-92 Camaro/Firebird TPI)
can be used on a boosted application with the $58 Syclone code with a
moved wires, which means it'll be fairly easy to upgrade your powerplant
the future. It runs the higher-speed 8192 baud ALDL communications
makes datalogging much more efficient, and there's also a HUGE amount of
support for tuning with this ECM, as the F-body guys don't like to leave
The only thing that I'm not sure of is this: I believe the '7730
4-cylinders were DIS cars. Don't quote me though because I'm not sure.
'7730 was used on dizzy-fired applications as well, but the stock 4-cyl
might require some tweaking to run a dizzy ignition. One way or the
the GM ignition setups all use the same timing signals anyway
DIS or dizzy hardware,) they just have different limits set in the code
depending on which system was used. Do some searching in the DIY-PROM
at thirdgen.org for more specific info.
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