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ok ... Posted by Kevin K [Email] (#374) [Profile/Gallery] (more from Kevin K) on Fri, 4 Oct 2002 14:36:08 In Reply to: Comments, Ragnar, Fri, 4 Oct 2002 02:28:00 Members do not see ads below this line. - Help Keep This Site Online - Signup |
so ..
amm output always used with the main map, likely to be designed close to stoich mix so lambda can trim.
wot mode kicks out lambda, and adds x% more ms to main map value, based only on rpm.
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remember, no chips in usa ..
added resistor should knock amm outpt by fixed %, and would be matched to upgraded injector. this should work for both closed loop and wot, as long as some limits are not exceeded. brad starts with 300 ohm for 30# inj's, stock 2.5 fpr.
Resistor should work well with bigger injectors at 3K torque peak, since still in range of amm, and stock inj duty cycle was likely low, like 60%. At high rpm, amm output could flat-line due to exceeding the amm capacity (220 hp per your note). Fuel flow could also be limited by exceeding the edge of the map's load axis, which would not be far away, given the small injectors used.
I understand the maps you showed are likely ms values, and wot correction a % increase of these values. also, load axis would be based on amm output vs some reference value at that rpm.
3 questions:
1) for the stock maps, and a specific rpm, what does the 100% load limit value represent? is it for one bar of boost?
2) are points on the map, that are beyond normal stock use, still accurate? maps u showed seemed to have ms drop at the high load end, for many rpm values.
3) what is stock max inj duty cycle (or ms), for typical wot at 160 hp and 5500 rpm?
thanks Ragnar for the info.
posted by 52.128.3...
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