DIY_EFI Digest V1 #248 -Reply

[Fred Miranda]

Fred,
A sequential system won't provide more top end, but it might
give better driveability and mpg.

For a resonably priced sequential system, you might look at
Autronic. (produced by an ex-Motec guy) About $1600
I've done 3 of these, Mustang SVO 4cyl turbo, my '65 Lotus Elan
and an Eclipse turbo. Am about to do another Eclipse also.

I have also done many TEC2 systems from rotarys to V8s.
They are a good value but not as powerfull as the Autronic
system. (power in terms of tunability)

Fred

At 01:34 PM 8/27/96 -0500, you wrote:
>I've been reading the list for a while now but have never
>commented.  I would like the list members' opinions.  I want
>to build a fuel injected Chevy 350.  It should have about
>10.5:1 compression. Ported out AFR aluminum heads.  TPI
>specialties mini-ram manifold (looks like current LT1 but
>made for forward cool engines)  Cam with about 222deg dur
>at .050" and .480" lift intake and 232 deg dur at .050" and
>.510" lift exhaust.  1 3/4 " headers, low restriction exhaust
>etc.... 6" connecting rods.  I'm considering buying and EFI
>computer and associated wiring and sensors.  Talked to a
>guy at Mr. Gasket (they make the DFI/accel system used in
>many similar engines in the car mags) and he says that I
>would gain almost no benefit from a sequential system vs a
>batch fire system.  I also want to look at an ECM from Motec
>but it is a LOT more expensive.  Will there be a significant
>advantage to using sequential port injection vs batch fire? 
>Does anyone have any experience with either of these
>aftermarket programmable systems?  I want bulletproof
>reliability combined with stellar performance and tuneability. 
>Will I have an advantage to having a system that is
>programmable vs having to get someone to burn the correct
>chip for my engine for use in a standard GM computer?  I
>already have a laptop to run the software necessary to
>configure one of the aftermarket systems.  What do you all
>think?
>
>~~fred francis
>
>
>