Flandrs Posted January 9, 2019 Report Share Posted January 9, 2019 Hey guys having sligthly problems with revlimit, if a gear not goes in i Will overrev the engine pretty hard as the ecu doesn’t cut fast enough. so what is your best solution for this? I have 8 injectors Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 9, 2019 Report Share Posted January 9, 2019 What engine are we talking? Do you have a log of an over rev? Can you attach your tune? Quote Link to comment Share on other sites More sharing options...
Flandrs Posted January 10, 2019 Author Report Share Posted January 10, 2019 4g63 4 cyl yes i think i have logs left, it is nice peaks there Quote Link to comment Share on other sites More sharing options...
Flandrs Posted January 10, 2019 Author Report Share Posted January 10, 2019 only found 1 logg as this was a while ago and i had forgotten about this issue.. Soon it's time again to run the car so it would be nice to have been sorted this out b1.llg flanders map .pclr Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted January 10, 2019 Report Share Posted January 10, 2019 When i open the log it was full of start stop lines. Makes it hard to read. Quote Link to comment Share on other sites More sharing options...
Flandrs Posted January 12, 2019 Author Report Share Posted January 12, 2019 yes but you have 12k rpm at first, that is what i have to show you. really want this to work. it sucks to take apart whole engine because lack of revlimit... Just want to have absolutely 100% cut could be so that the second rail injectors doesn't shut off? here you can clearly hear the overrev when 4th gear doesn't want to work properly Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted January 12, 2019 Report Share Posted January 12, 2019 Without a log I cant see whats happening, helps if all parameters are logged that a relevant to the issue. Others might be able to help there. The spike to 12,000 rpm looks trigger related. When i configured a rpm limit i use lower rpm like 4000rpm to make sure it works first. Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 14, 2019 Report Share Posted January 14, 2019 The 12000 Rpm showing in your log is just a trigger error that occurred as you shut the engine off, it was only idling with TP at zero at that time. In your video, it looks more like you have changed from 3rd gear into 2nd causing a mechanical over-rev, electronics can do nothing to prevent that. Having said that, if you want a faster responding limiter, change to ignition. cut, fuel is injected much earlier in the cycle than ignition so if you use fuel cut you can still potentially have one cycle of fuel already injected sitting in the intake port or combustion chamber waiting for the next spark. Also I suggest you increase the start cut TP100 to 60% and the end cut to 100%. Quote Link to comment Share on other sites More sharing options...
Flandrs Posted January 14, 2019 Author Report Share Posted January 14, 2019 ok and yes the logg i have is wrong i saw that too but i haven't any saved or they has get lost.. if i find them i will let you know. Nope i have not shift from 3rd to 2nd gear by any time actually, and will probably never do that either. why the 4th gear doesn't work is another mechanical issue i need to work on and when it issues i need a revlimit that works without problems. Yes i know that with fuelcut but ignition cut is not good for the engine at high rpm Valves doesn't like it at all but if that is the solution to get a working revlimit that is what i have to do Quote Link to comment Share on other sites More sharing options...
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