Pred Posted January 15, 2009 Share Posted January 15, 2009 have anybody an diy article for th resistor pack? i would put the eu 550er injectors in my jspec supra Quote Link to comment Share on other sites More sharing options...
Wez Posted January 15, 2009 Share Posted January 15, 2009 How will you adjust the fueling once installed? Quote Link to comment Share on other sites More sharing options...
Pred Posted January 15, 2009 Author Share Posted January 15, 2009 mapecu.. Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 16, 2009 Share Posted January 16, 2009 I've made a few of these over the years. If you download any of the link ecu manuals off (http://www.linkecu.com) there is a diagram and resistor values for various sequential and grouped configurations. Just need to mount them in a nice alloy box to act as a heat sink and weather shield. The difficult bit is working out which of the black and orange wires in the loom are injector feeds as there are more than six and some are spliced into others (it's a real ba5tard). Lyndon. Quote Link to comment Share on other sites More sharing options...
Pred Posted January 16, 2009 Author Share Posted January 16, 2009 the wires are not the problem http://www.internetwork.org.uk/Injectors/Injectors.htm i need the resistor values Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 16, 2009 Share Posted January 16, 2009 6 x 4R7 @ 25w http://uk.farnell.com/vishay-sfernice/sh25-4r7-5/resistor-25w-5-4r7/dp/1141219 Lyndon. Quote Link to comment Share on other sites More sharing options...
Pred Posted January 16, 2009 Author Share Posted January 16, 2009 i found this thread with the search http://www.mkivsupra.net/vbb/showthread.php?t=152602&highlight=diy+resistor+pack he used other resistors? Quote Link to comment Share on other sites More sharing options...
heckler Posted January 16, 2009 Share Posted January 16, 2009 I also have made several packs, but I use 6.8 Ohm, 50W resistors... Quote Link to comment Share on other sites More sharing options...
Pred Posted January 16, 2009 Author Share Posted January 16, 2009 have you used the 550er eu injectors on a jsepc supra? Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 16, 2009 Share Posted January 16, 2009 I have, many times. I either used a genuine Toyota resistor pack or one made to the spec using the ones I suggest.I use the same resistors Link used in their resistor packs. I think the 550cc are 2.6 ohm so as long as you make up over 6 ohm the injector drives are happy.Anything over 5 ohm is generally regarded as High Impedance (apart form a certain special Bosch injector who's application i forget). The Resistance depends on how many injectors you are driving on each injector channel. 1 = 4.7 ohm 2 = 2.2 ohm 3+ = 1 ohm Toyota fuel pump ballast resistor units are 1ohm and I use them as ballasts on early Toyota's engines that only run two injector channels like the 1G-GTE, 4A-GE & 5m-ge. Lyndon. Quote Link to comment Share on other sites More sharing options...
heckler Posted January 16, 2009 Share Posted January 16, 2009 have you used the 550er eu injectors on a jsepc supra? yup, used to have 550's and my home made pack Quote Link to comment Share on other sites More sharing options...
Pred Posted January 17, 2009 Author Share Posted January 17, 2009 when i use a 5,6 ohm or 6,8 ohm resistor.. whats the difference for the injectors? Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 17, 2009 Share Posted January 17, 2009 The whole point of a Peak and Hold injector is opening speed. If you add to much resistance you will negate the advantages of have it and may have well just bought a saturated 550cc version @ 12+ohms. Saturated injectors are quite lazy at low pulse width, so if they are big (like a 850cc Sard) or the engine has big cams or throttle body, they can make mapping idle, low load and acceleration enrichment a royal pig. I'm looking at making a "Peak and Hold" driver module instead of a resistor pack for the future. I think AEM do a P&H module, why don't you buy one of these? Lyndon. Quote Link to comment Share on other sites More sharing options...
Pred Posted January 18, 2009 Author Share Posted January 18, 2009 I think AEM do a P&H module, why don't you buy one of these? the aem costs 350$, a selfmade resistorpack ~40€ i would make my own resistorpack or i search an used eu spec resistor pack, but its hard to find one :/ Quote Link to comment Share on other sites More sharing options...
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