DFI or Tec II

Frederic Breitwieser frederic.breitwieser at xephic.dynip.com
Tue Apr 6 21:38:45 GMT 1999


> I've mostly narrowed it down to the Accel/DFI and Tec II systems.  I've
> called the manufacturers and discussed the various features of each
> system and the available software.

Chebby 350 engine, speed density.  Hmmm :)

DFI is an awesome setup, flexible, yada yada.  Tec II also
is flexible.  I prefer the Tec II simply because the
ignition, ECM, and everything else is one, firewall mounted,
self-contained unit.  You can run batch injection or true
sequential.

Another option you have to is leach an entire TPI setup from
a Camaro, Trans-Am or Corvette with the TPI setup - might
cost you a lot less if you hunt a bit, and the advantage is
you can get parts at any pep boys, summit racing, etc.  Just
a thought.  Speed density OEM stuff is 90-93 TPI, maybe
other years as well.

> dis-advantages over the other.  Seems to me that Tec II system is more
> expensive after you include the buying the software license.  But the

Yes, it is, however its self contained, you can put it
together without a wiring harness, using junkyard connectors
to the sensors, with crimped spades on the ends of the
wires.  True do it yourself.  The DFI system doesn't have
the same tunability, which might affect you down the road
with turbocharging and/or nitrous, or other "stuff".  DFI is
a good system, I'm not knocking it, between the two, I'd
prefer the Electromotive stuff.  And their tech support is
excellent.  We built a twin-turbo buick V6 with a sheet
metal plenum, and the Electromotive guys, upon our calling
in a panic, answered all our questions, and made good
recommendations in how to get things started properly.  We
were running very lean before the turbos kicked in, and they
helped resolve that over the phone.  I think we clocked
about 2 hours with the one guy total, over a 5 hour period. 
We kept calling back.

This advice is free, take it for what its worth <smile>

-- 
Frederic Breitwieser
Bridgeport, CT 06606

http://www.xephic.dynip.com
1993 Superchaged Lincoln Continental
1989 500cid Turbocharged HWMMV
1975 Dodge D200 Club Cab (soon to be twin turbo 440)
2000 Buick GTP (twin turbo V6)



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