- Jun 12, 2017
- 135i TT
[email protected] said something similar to me a little back, still don't understand the concept to this day.Not needed, as per my first msg. MHD + shift bog fix (flash time option), and PI safety (flash time option).
Faster shifts, if the throttle stays fully open during shifts, it could help i think.
Have you tried doing a data log of a hard shift? My manual car already keeps the throttle open during any fast shifts above ~4000rpm, even though I let off the accelerator. It appears to cut fuel and leave the throttle wide open. It did this with the stock tune and nothing special to activate. 2009 135i with IJE0S for me.
Unless you are looking for some kind of pop or backfire, the car may already be doing want you want. I think I saw some settings in the public XDF for threshold for fast fuel cut, these might be what need to be manipulated to make the car stop cutting fuel in this situation -- but honestly it seems like a fuel cut is what you'd want for the fastest, least harsh shift possible while leaving the throttle open like that.
Pretty sure he wants his warm idle to sound like cold start. Won't happen as timing is retarded a good deal for cold start to get heat into the cats. You'd have too high of EGT to keep it running that way after the cold start timer. Get a louder exhaust if you want loud all the time.
yes the car does do a fast fuel cut with stock tune to prevent rpm from rising when clutch is in
these are already defined in the public xdf so you can play around with them...
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i think hes looking for ignition cut instead so rpms dont skyrocket when he NLS which jyamona is working on...
Sup, yes mine too since the throttle tables, it doesnt fully close. But i'm sure it would be better if it stayed fully open.Have you tried doing a data log of a hard shift? My manual car already keeps the throttle open during any fast shifts above ~4000rpm, even though I let off the accelerator. It appears to cut fuel and leave the throttle wide open. It did this with the stock tune and nothing special to activate. 2009 135i with IJE0S for me.
if you play around with the xdf i posted for the traction control stuff, you can tune out throttle closure requests from the dsc module...
when dsc kicks in, exhaust will sound different/louder due to spark retard... but of course... it will cause the EGTs to rise
it sounds pretty much the same
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I don´t know if this really is a problem because if i remember right this is a common traction control strategy on race bikes. Modern Bikes like the BMW S1000RR (race version not street version) do it that way. If TC kicks in the bike sounds completely different. Check here:
Well, do you have something a little bit more subtle ? This sounds brutal...Yes, thats exactly what you need to do. With both flash options selected as I stated above, and if you shift at your table defined rev limit, it will just bounce there for a split second (both fuel and spark will be cut). Various ST cars doing this hold 21psi+ between shifts.
i stumbled over a Facebook post about somebody talking about MHD OTS Maps V9
I don´t know if this is a coincidence or maybe the tables were already available for MHD But see yourself.
Talking about shift farts.. voila .. they seem to be also in the upcoming ots maps