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Registered
Join Date: Oct 2000
Location: Corona, California
Posts: 1,132
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For the standalone system you are referring to - the closed loop operation worries me slightly. Although our Porsches do operate under mild loads and rpm at closed loop, they along with most other cars switch to open loop after the load/rpm threshold is exceeded.
I always thought that even a 4-wire O2 sensor was neither quick enough nor accurate enough for a computer to adjust fuel and timing from as it would have to in open loop mode (7000 rpm and 15 lbs boost for example). For the system you propose wouldn't it cost about $400 just for the proper wide-band O2 sensor? Erick |
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10-10-2001, 05:20 PM
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Registered
Join Date: Oct 2000
Location: Layton, Ut, USA
Posts: 52
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Maciek: I tried a service center, and they didn't have it, so I made a DIY cleaner, an cleaned them myself. See the recent post.
Also, what did the pattern look like when clean? Did you watch them do it, or only when they were done? My spray pattern was tighter than I expected...not much different than a water pistol, but some. About 2/3 the diameter of the injector cap, 4 or 5 inches out the injector, then staying focused. |
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10-10-2001, 05:42 PM
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Registered
Join Date: Oct 2001
Location: Malvern Al usa
Posts: 146
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Answers: to ?'s
It programs itself in closed loop mode to give you a a excellent base for fuel maps. A closed loop system for ignition can only be done with a knock sensor. Our system will NOT be closed loop for ignition, only fuel. We do not believe in knock sensors. A engine emits a certian frequency when it pings, getting the right frequecy for the right engine is millions in R&D. Our system runs on a 4 wire sensor they do not have to cost that much. We will reccommend it only to run in closed loop to program the engine base maps and then switch open loop to run all the time. You will still need to tweak the WOT maps to get max hp from your engine. Kevin PCM Injection |
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10-11-2001, 05:36 AM
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Registered
Join Date: May 2001
Location: LI NY
Posts: 1,689
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Hey kevin...what are the specs as far as performance figures go with the new system? increase in hp,torq etc-thansk-chriz
------------------ "Faster,Than,You" "Wish I had a 951....." "Ive tried so hard and got so far but in the end it doesnt even matter" http://www.members.aol.com:/fty9999/944land/944land.htm |
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10-11-2001, 11:32 AM
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Registered
Join Date: Oct 2001
Location: Malvern Al usa
Posts: 146
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FTY:
We do not have any as of yet the ECU is being finalized with software of our own design. Major advantages over the Moronic system are. 1. No MAF sensor to restrict the inlet air flow. Uses Map sensor instead. 2. Fully programmable so if you want to cruse on saturday night with 118 octane race fuel, looking for unepecting kills. you can design a program for that and take advantage of the added advance timing. When the fuel runs out download 93 octane program. or program your Porsche to run on 87. 3. Turbo guys can do away with the boost controller. Add 2 $5 dollar grainger valves with a solenoid valve and have Street/Race boost settings and programs that take adantage of both settings. 4. RPM limit set where you want it. 5. No speed goveners. 6. Wasted spark Ignition Has 2 coils instead of 1. At high RPM coils have more time to charge. Hotter spark. 7. Wasted spark fires one cylinder on compression stroke and its brother cylinder on the exhaust stroke. say CYL's 1-4 and 2-3 come up and down at the same time in the block. It burns excess fuel as it is leaving the combustion chamber. Better emmisions. 8. You can take full advantage of any mods you make to the car either by freeing up more air to or comming out of your engine. 9. Those are just a few!! Kevin PCM Injection |
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10-12-2001, 06:50 AM
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