'73 914 2.0L - On the road again

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CantConfirmOrDeny
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'73 914 2.0L - On the road again

Post by CantConfirmOrDeny »

Name: Paul Bennett
Vehicle: 1973 Porsche 914
Engine: 2.0L original stock everything.
Injection: MS-II / V3.0 / Fueling hardware is original factory port injection minus all the bits made redundant by MS-II. (ECU, Vac advance, MPS, throttle switch, etc.)
Description: Using MS-II to control fuel and spark with OE distributor, Bosch blue coil, Pertronix ignitor. Using original temp sensors, and tapped in to original fuel pump and +12V supply wiring. 1.3K pullup resistor on Pertronix gives usable signal to MS-II, and still drives the original tachometer.

Easy decision to go with MS-II when the original MPS failed. $1600 for a new one, if they can be found at all! Building this baby was a great learning experience, and car will be running better than new, I'm sure, once I get thru the tuning exercise. Runs well enough now to be my daily driver - will wring it out on the track during upcoming Porsche Club season.

Will post my .msq and .vex files in the near future…if I'd had these when I started, I could've done the whole job in about 4 weekends!
CantConfirmOrDeny
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pix to come

Post by CantConfirmOrDeny »

Pix to come, fer sure. Place is a mess right now - really has that Frankenstein's lab look. But it runs better than it has in years, and I've really only gotten started with the tuning...
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'73 914 2.0L Dead Bosch D-Jet
MS-II V3.0 / 2.3 firmware & MT 2.25b717 / Fuel & Spark / Open loop
Click here for my success story so far...
========================
CantConfirmOrDeny
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VEX file for ignition timing

Post by CantConfirmOrDeny »

This is a calculated VEX for the ignition timing. No actual tuning yet, but seems to run OK on the street.
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'73 914 2.0L Dead Bosch D-Jet
MS-II V3.0 / 2.3 firmware & MT 2.25b717 / Fuel & Spark / Open loop
Click here for my success story so far...
========================
CantConfirmOrDeny
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msq & dump files

Post by CantConfirmOrDeny »

Attaching a ZIP with current msq and dump files. Still a work in progress, but runs well enough to be my daily driver now.
You do not have the required permissions to view the files attached to this post.
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'73 914 2.0L Dead Bosch D-Jet
MS-II V3.0 / 2.3 firmware & MT 2.25b717 / Fuel & Spark / Open loop
Click here for my success story so far...
========================
airfix4
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Re: '73 914 2.0L - On the road again

Post by airfix4 »

Hello,
how did you use MSII to run stock ignition/dizzy?
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