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Old 24th November 2016, 12:53 PM   #1 (permalink)
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stock rb20det with big injector issue

hi all...what will happen if stock rb20det using 850cc injector?..all stock only 850cc injector..
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Old 24th November 2016, 01:20 PM   #2 (permalink)
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I don't think it would even idle on a stock ecu. If they are high impedance and physically fit then just scale the K value and tweak the null time and it would be ok but you need a specially written chip or nistune in a stock ecu to do that. Low impedance will need a ballast resistor wired in.
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Old 3rd December 2016, 01:10 PM   #3 (permalink)
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engine stuck when turn clockwise

hi..why rb20det engine stuck hard/wont rotate when turn it clockwise/anti clockwisse with rachet?more strange when it cranked when started engine.. it sound like knocking ,not sure it came from head or block.what causing it?how to fix it?

2:-normaly rb20det crank pulley marking is at 15°(Manual)20°(Auto),it started - 0,5,10,15,20 what happen if crank marking set at 0° or 20°?
3:-why CAS only can set to fully to the left/counter clockwise.If i turn it to normal position(middle),engine very˛ sluggish then stalled.why?what to do?I guess belt jumped inside crankshaft gear marking..
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Old 3rd December 2016, 02:49 PM   #4 (permalink)
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It sounds like it's seized. Maybe time to chuck it away and start again?
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Old 5th December 2016, 11:07 AM   #5 (permalink)
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what u mean"it seize''?engine can start..at first ok after a while it knocking..why is that?
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Old 5th December 2016, 11:15 AM   #6 (permalink)
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sorry not understand "what is chuck?''...chucky the evil doll i know...haha..seriously im not understand..what to do..ive check crank timing it at 15°..cam timing also ok..why it knocking,,thats make me mad.some say that maybe valve bended..i doubt it coz if is engine jammed already rite?ive check deepstick no metal ..engine long timie not started due to fuel pump failure..i use 2 pump internal and external..fuel pressure ok 3-5psi..
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Old 5th December 2016, 11:44 AM   #7 (permalink)
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Could be a few things, but sounds like its bottom end bearings.
Would need to be taken apart if its knocking.
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Old 7th December 2016, 12:15 PM   #8 (permalink)
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-problem before problem-

hi .i read an articel said that( if rb20det knock sensor not detected knocking it automaticly set The ignition timing is advanced until knock is detected and then pulled back in narrowing swings above&below ideal until it narrowed it down to being ok.once settled it almost stops learning & will use tiny adjustment each time go out & take a longer to get to its ideal setup
each time.)the question is how to know knock sensor have detect knocking?this problem is before engine make a loud knocking sound..before this prob engine only can run/idle with CAS is set fully counter-clockwise(Advance)position, if set CAS to middle or a bit clockwise engine very˛ sluggish .no power then shut off..after change other knock sensor taken from RB20DE (N.A)halfcut at my uncle chopshop,check ecu faulty code ok(no 34),HOW to solve it?how to know it stop learning?
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Old 10th December 2016, 11:35 AM   #9 (permalink)
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can rb25det using rb20det injector resistor pack?
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