DeTomaso Mailing List: February 00, Message #20

Bjarke,

Funny enough, I just got off the phone with HalTech here in the US about software versions, etc.

I'm using an F9 system running firmware version 7. My system uses throttle position and so far it running good below 4,000rpm. I just haven't gotten around to someone else driving so I can tweak the computer for the higher RPM's. It's pretty hard to control the throttle, watch the road, watch the computer and hit keys on the keyboard!  Kinda' unsafe to say the least...

A better solution would be a chassis dyno which I'm looking into for Friday morning.

Have you contacted HalTech about their F9 system and see if it'll swap out with your F3? That seems to be the most logical and easy solution as the first step.

I'm just learning on my system what is good and what is bad and it is quite possible to mess around with the settings forever...

FWIW,

Kirby


At 15:34 -0500 1/2/2000, Bjarke BC Nielsen wrote:
>I have been running my De Tomaso Pantera with the Haltech F3 EFI with O2
>sensor for the last 7 years, but i newer have been 100 % happy with the
>resolution
>of the F3 system (8 Bit) when setting up my fuel maps.
>I have tried with different firmware (software inside the microcontroller)
>one setup using vacuum as feedback, and one that uses throttle position
>as feedback etc... But i guess it is not really the state of the art any
>more.
>
>My question: What replacement can be recommended, and what price range ?
>
>
>My setup is as follows.
>
>Engine Ford 3.51C
>Fuel 98 Octane with lead replacement.
>8 x 48mm Weber-style throttle bodies with 8 injectors, with 45 PSI fuel
>pressure.
>The compression ratio is 11:1 using Wisco pistons at 4.02" and Crower billet
>rods 5.78".
>Stainless steel valves and roller rocker arms, with Crower valve springs and
>hyd. lifter.
>The Crower cam, Lobe centrer 108, Lift in 0.535" Lift ex 0.545" with
>duration on
>intake 280-290 deg. exhaust 290-300 deg. etc..
>Ignition: Malloy Unilite distributor delivers trigger pulse to the MSD6 that
>triggers the
>EFI and MSD blaster coil.
>Lots of other small modifications that dose not have any influence on this
>question.
>
>Thanks and regards
>
>Bjarke BC Nielsen
>
>Denmark
>
>De Tomaso Pantera GTS 874-THPNMS-04916