Autotap Question.
Autotap Question. I got the autotap going and I understand how to set maft.My ? is my timing is still low at wot(22.5) and it drops to 10 when I shift.(m6).I guess what I want to know is, is this normal?I am using the system off of c5 forum to set the maft.
I am using factory maf ends w/no screen.Would porting them make it better or worse?I want to get rid of the pop in the exhaust when shifting at wot.The car runs great. Thanks ahead of time.
<small>[ April 10, 2002, 01:48 PM: Message edited by: I follow no 1 ]</small>
I am using factory maf ends w/no screen.Would porting them make it better or worse?I want to get rid of the pop in the exhaust when shifting at wot.The car runs great. Thanks ahead of time.
<small>[ April 10, 2002, 01:48 PM: Message edited by: I follow no 1 ]</small>
Re: Autotap Question. I know someone can help????????????
I got my o'2 average at wot at .88 and my ltft at cruising speeds to an average of .0069.Now that is as close to zero as I think I can get.Timing is up to 23.5 at wot but still 10 at shift points.
<small>[ April 10, 2002, 10:51 PM: Message edited by: I follow no 1 ]</small>
I got my o'2 average at wot at .88 and my ltft at cruising speeds to an average of .0069.Now that is as close to zero as I think I can get.Timing is up to 23.5 at wot but still 10 at shift points.
<small>[ April 10, 2002, 10:51 PM: Message edited by: I follow no 1 ]</small>
TECH Regular
Joined: Nov 2001
Posts: 499
Likes: 0
From: Clarkston
Re: Autotap Question. What year is your car? Is it a 2001/02? The timing on those guys is lower than the rest of us.
I'm assuming you aren't picking up any KR. I don't know for sure (someone else can answer this) but I saw a post awhile back that stated that M6 are affected by torque management as well as the A4's. If so, that would explain your timing drop on shifts. (again, assuming no KR)
Also, what other mods do you have? The ported maf will make you run leaner (I'm assuming that's why you got the maft!)
Mark
I'm assuming you aren't picking up any KR. I don't know for sure (someone else can answer this) but I saw a post awhile back that stated that M6 are affected by torque management as well as the A4's. If so, that would explain your timing drop on shifts. (again, assuming no KR)
Also, what other mods do you have? The ported maf will make you run leaner (I'm assuming that's why you got the maft!)
Mark
Re: Autotap Question. no knock retard,0 across the board. I was curious about the tm but thought it was only on auto's and I have a m6.Maybe someone can inlighten us.My car is a 2001 and I have head and cam, most all bolt ons and some computer tuning.Not sure what all was done on the tuning. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
<small>[ April 11, 2002, 10:19 PM: Message edited by: I follow no 1 ]</small>
<small>[ April 11, 2002, 10:19 PM: Message edited by: I follow no 1 ]</small>
TECH Fanatic
Joined: Nov 2001
Posts: 1,497
Likes: 0
From: Katy, TX
Re: Autotap Question. Well just to add my input, and I'm not an autotap expert.
the guys I know who have optimized their timing...DID NOT run their ltrims down to 0.
might help if you posted a raw data set from your atap logs.
log tps/rpm/ITA/KR/02b1s1/o2brs1/ltrim1/ltrim2
and detail what your maft settings are during those runs.
I also make it a habit... to drive the car a bit, before logging. Then log some slow to change data...intake temps/coolant temps etc...then make my runs collecting just the sensors I mentioned first.
You'll find there are ALOT of different opinions on how to read ATAP logs, and how to get your numbers set up. What I have found is that what works on my car, may not work on your car.
the guys I know who have optimized their timing...DID NOT run their ltrims down to 0.
might help if you posted a raw data set from your atap logs.
log tps/rpm/ITA/KR/02b1s1/o2brs1/ltrim1/ltrim2
and detail what your maft settings are during those runs.
I also make it a habit... to drive the car a bit, before logging. Then log some slow to change data...intake temps/coolant temps etc...then make my runs collecting just the sensors I mentioned first.
You'll find there are ALOT of different opinions on how to read ATAP logs, and how to get your numbers set up. What I have found is that what works on my car, may not work on your car.
