[wingman88]

Hi guys,

first i want to say hello to the community
It would be nice if some of you can take a look at my datalogs ;-)

2 weeks ago i installed vrsf catless downpipes and the cobb ap.The car feels ok, but at around 3000-4000rpm there are some swings. (dont know the correct word for)
I read the insturction here in the forum, to understand the datalogs. I think the swings come up due to throttle closures.

Perhaps you can give me some advise what i should do? With the stage 2 sport map it happens also.

thanks

[enrita]

looks good to me, you can with ATR tone down a little the wgdc to avoid throttle closure which is anyway very little and not happening in 4th gear. there are various threads describing this. Search .

[wingman88]

thanks for your help.
i dont understand what i should do with ATR? I did a research for "throttle closures", couldnt find something....

[enrita]

this is one of the threads: http://www.e90post.com/forums/showthread.php?t=752318

Just try to find Cobb ATR threads

[marv85]

Seems OK. Some throttle closures due to overshooting requested boost.

As enrita pointed, you can attempt to reduce WGDC in the affected range. The thread Enrita posted is a great place to start. Post there if you get any issues

You'd also benefit from an intercooler btw. I thought the weather would be colder by now in Germany. It used to rain during the summer a couple of times when I visited (Dad is half German, so we used to visit every summer).

[wingman88]

thanks guys, now i understand what you mean with atr.
i got the software , not installed, but will try it tomorrow.
Is it possible to get some advise, which value i need to fix? or is there a "how to"?

germany could get really hot ,yes. i already look for an intercooler, because after some hard pulls on the autobahn, it rises really fast!
But i will wait after the winter.
If you come to germany you should take your car with you BMW`s love to kill Porsche,AMG and anything else

[marv85]

Originally Posted by wingman88

thanks guys, now i understand what you mean with atr.
i got the software , not installed, but will try it tomorrow.
Is it possible to get some advise, which value i need to fix? or is there a "how to"?

germany could get really hot ,yes. i already look for an intercooler, because after some hard pulls on the autobahn, it rises really fast!
But i will wait after the winter.
If you come to germany you should take your car with you BMW`s love to kill Porsche,AMG and anything else

God I miss the autobahn.I bought my first car from Giessen, Germany... That was before I moved to the US I should go there, but I don't know about the car though lol

As far as using ATR to tune out those overshoots/throttle closures. Download ATR from COBB's site and install it. You will have to fill out a form and they'll send you a link.
Then read post 26, and 44 in that thread enrita shared.

http://www.e90post.com/forums/showth...=752318&page=2

If you still have issues, PM me

[wingman88]

i`ve done some adjustments with ATR. now my throttle looks fine, i think

but there are a lot of timing corrections, is there a problem now?

[VNeBLOB42]

Originally Posted by wingman88

i`ve done some adjustments with ATR. now my throttle looks fine, i think

but there are a lot of timing corrections, is there a problem now?

I haven't looked at your log yet, but having corrections 3 and under across 3 or less cyl isn't bad. But I would watch on them and see if they are consistent. Typically high CATs will cause timing corrections. That could be your cause, I'll have to take a look at the logs to he sure

[marv85]

I looked at your attached log, and it seems you definitely cleaned up your throttle closures /oversboost

Timing drops are not horrible. Try higher octane. And dude you need an intercooler.

[VNeBLOB42]

Originally Posted by marv85

I looked at your attached log, and it seems you definitely cleaned up your throttle closures /oversboost

Timing drops are not horrible. Try higher octane. And dude you need an intercooler.

marv,

he is at 118 deg F at near redline. Is that, that bad? I only ask because I can get near 114 on my 3rd pull with ETS FMIC with +76deg temps and near 130 with 95+ deg. outside temps.

I guess the DME starts to pull timing around 105 F CATs?

[marv85]

Originally Posted by VNeBLOB42

marv,

he is at 118 deg F at near redline. Is that, that bad? I only ask because I can get near 114 on my 3rd pull with ETS FMIC with +76deg temps and near 130 with 95+ deg. outside temps.

I guess the DME starts to pull timing around 105 F CATs?

That is high but not really bad. I suggested an intercooler because it would at least keep his IATs almost constant throughout the pull. his IATs increase by 50% by the end of his run.

In your case, let me get this straight, so ambient is 95+ and you see near 130F? what is the starting temp?

I have the ETS 7" FMIC. I've noticed I'm usually around 20F above ambient once the car is warmed up. When it gets colder, I'm closer to ambient.
One thing for sure though, my IATs are almost flat throughout a run.

[VNeBLOB42]

Originally Posted by marv85

That is high but not really bad. I suggested an intercooler because it would at least keep his IATs almost constant throughout the pull. his IATs increase by 50% by the end of his run.

In your case, let me get this straight, so ambient is 95+ and you see near 130F? what is the starting temp?

I have the ETS 7" FMIC. I've noticed I'm usually around 20F above ambient once the car is warmed up. When it gets colder, I'm closer to ambient.
One thing for sure though, my IATs are almost flat throughout a run.

I don't mean to thread jack, but e90 post removed my PM's. lame forum.

ETS FMIC 5" (i also have DCI) so my curves are a little more steep to your 7"

it was 122 ~ 135 and was near 100 deg. outside. I actually got a boost leak on this pull, check all fittings cleared code and it never came back. logs show good signs of no boost leak.

I average the same about +- 20 deg above ambient when ambient above +- 78 deg and higher..

last night I just did a log with 67 deg. outside and my IATs were 80 ~ 97. So it appears 15 - 20 deg. from start IAT's to redline IAT's. but the more pulls I do in the same time frame, the larger the gap between start and finish IATs.

my stock FMIC on S1 Agg. I had some logs from 75 IATs to 110 IATs,

[marv85]

Originally Posted by VNeBLOB42

I don't mean to thread jack, but e90 post removed my PM's. lame forum.

ETS FMIC 5" (i also have DCI) so my curves are a little more steep to your 7"

it was 122 ~ 135 and was near 100 deg. outside. I actually got a boost leak on this pull, check all fittings cleared code and it never came back. logs show good signs of no boost leak.

I average the same about +- 20 deg above ambient when ambient above +- 78 deg and higher..

last night I just did a log with 67 deg. outside and my IATs were 80 ~ 97. So it appears 10 - 15 deg. from start IAT's to redline IAT's. but the more pulls I do in the same time frame, the larger the gap between start and finish IATs.

my stock FMIC on S1 Agg. I had some logs from 75 IATs to 110 IATs,

Sounds about right man. Even the 5" ETS is great! I don;t think there is anything weird in what you have.

Now I'm running meth so I'm usually below ambient

hey you can PM on the other forum

[VNeBLOB42]

Originally Posted by marv85

Sounds about right man. Even the 5" ETS is great! I don;t think there is anything weird in what you have.

Now I'm running meth so I'm usually below ambiend

hey you can PM on the other forum

I love the affects of meth, now that I see what my IATs do even with upgraded FMIC, even when I average below 115 F, I want them lower. LOL. I just don't want to hassle with it.

you mean the other forum that I mentioned in a PM (as a reference) that lost me my signature, PMs, attachments, edit profile, etc. I don't know what you are talking about.

[marv85]

Originally Posted by VNeBLOB42

I love the affects of meth, now that I see what my IATs do even with upgraded FMIC, even when I average below 115 F, I want them lower. LOL. I just don't want to hassle with it.

Meth is cool. It's no hassle. Get the HFS-4. After you install, tuning it is a piece of cake and to be honest it doesn't really need tuning. it's an awesome kit and you get to go more aggressive in tuning

Originally Posted by VNeBLOB42

you mean the other forum that I mentioned in a PM (as a reference) that lost me my signature, PMs, attachments, edit profile, etc. I don't know what you are talking about.

Shame on you! LOOOL

[VNeBLOB42]

Originally Posted by marv85

Meth is cool. It's no hassle. Get the HFS-4. After you install, tuning it is a piece of cake and to be honest it doesn't really need tuning. it's an awesome kit and you get to go more aggressive in tuning



Shame on you! LOOOL

LOL,

sent PM on B.....B......com

[marv85]

Originally Posted by VNeBLOB42

LOL,

sent PM on B.....B......com

Playing with fire loool

[Ænema]

Originally Posted by wingman88

i`ve done some adjustments with ATR. now my throttle looks fine, i think

but there are a lot of timing corrections, is there a problem now?

I wouldn't be concerned about the corrections in that log. You only really had 1 correction during the pull and it was a single 3.xx correction.

Welcome to the forums

[wingman88]

thanks for your ratings, guys

The standart intercooler is really really bad, you should consider that the ambient temperature was only 42 degrees! And yes after the winter, i will install a better intercooler.

is someone using virtual dyno? why does it show me so less power? I only get about 240 Hp

[marv85]

Originally Posted by wingman88

thanks for your ratings, guys

The standart intercooler is really really bad, you should consider that the ambient temperature was only 42 degrees! And yes after the winter, i will install a better intercooler.

is someone using virtual dyno? why does it show me so less power? I only get about 240 Hp

Virtual dyno is good tool for showing deltas in power from map to map. Reason for that is you cancel out some inaccuracies in the math when you subtract the power numbers...

Run stock vs whatever map you're running now and compare