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> Type 4 FI, How big
r_towle
post Oct 7 2003, 07:45 PM
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So how big ahve you seen or heard of a 2.0 liter type 4 with a tweeks stock FI setup???

I need to know specs, I know 2056 works, I feel that it could go bigger, I am thinking 2.2 possibly, with a higher CR and a web cam, ported/polished heads.

I would like to hear Jakes real world trials to see how far he has gone, I know he has tried big displacement with the stock FI, I just want to know where the line is??

On that topic, how about 2.4 liter using the 4.8 liter mercedes injectors (they fit and have the same voltage requirements, and an old porsche race team mechanic said he had done it before)

Any thoughts?

Rich
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ArtechnikA
post Oct 8 2003, 06:44 AM
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QUOTE(jkeyzer @ Oct 7 2003, 07:07 PM)
I'm really surprised that to this day noone has gone into the ECU itself and changed the operating parameters inside to work with non stock configurations.
We have the technology...

actually, we don't.

the DJet is 40-year-old ANALOG technology. the essence of the system is the way the MPS uses a variable-core transformer to shape the pulses created by the trigger points. everything else is band-aid circuitry to 'tweak' that -- cold-start, full-throttle enrichment, warmup...

when you go in and start replacing bits of the analog stuff with something you can actually get parts for, digital stuff, to replace different elements of the pulse-forming and pulse-shaping modules - you will find that you have re-engineered the MegaSquirt (or one of its ilk).
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r_towle   Type 4 FI, How big   Oct 7 2003, 07:45 PM
Jeff Bowlsby   The D-Jet gods seem to all hover around 2.3L as th...   Oct 7 2003, 07:57 PM
r_towle   any real world examples?? the above work sounds ea...   Oct 7 2003, 07:59 PM
Charles Deutsch   New d-jet parts are very expensive so unless your ...   Oct 7 2003, 08:05 PM
seanery   I can tell you the cam makes a world of difference...   Oct 7 2003, 08:23 PM
Qarl   Yes, but the D-jet ECU is really the problem. Iit...   Oct 7 2003, 08:59 PM
jkeyzer   I'm really surprised that to this day noone ha...   Oct 7 2003, 09:07 PM
redshift     Oct 7 2003, 09:14 PM
Bleyseng   Its been done to some extent, but really modern EF...   Oct 7 2003, 09:17 PM
ArtechnikA     Oct 8 2003, 06:44 AM
rhodyguy   something to bear in mind. my understanding is wit...   Oct 8 2003, 07:39 AM
Bleyseng   Finally, you are coming around to the real world. ...   Oct 8 2003, 08:39 AM
Jake Raby   I have tried SEVERAL combos with theD Jet. One eng...   Oct 8 2003, 08:46 AM
Bleyseng   Thats true of any motor Jake. I well cared for 3.2...   Oct 8 2003, 09:10 AM
Jake Raby   I have several 2270s on the road without Nickies t...   Oct 8 2003, 09:21 AM
fiid     Oct 8 2003, 11:15 AM
r_towle   ok, lets just say for a moment that the DJet can h...   Oct 8 2003, 07:56 PM
Qarl   If you could pick an "Off the shelf" cam, Webcam, ...   Oct 8 2003, 08:01 PM
fiid   I am not an expert in mixture stuff by any means. ...   Oct 8 2003, 08:03 PM
fiid   I don't think that the MS is limited by firing...   Oct 8 2003, 08:05 PM
Bleyseng   Our engines are set up to run at 13.7 to 1 at part...   Oct 8 2003, 10:54 PM
Charles Deutsch   <...   Oct 8 2003, 11:05 PM
Bleyseng   Its in the Bosch and Porsche manuals, if you want ...   Oct 9 2003, 12:59 AM
Charles Deutsch   The manuals that can be downloaded from this site?...   Oct 9 2003, 01:21 AM


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