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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-27-2010, 11:33 AM   #41
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Originally Posted by PEI330Ci View Post
Oh...it flattens things out alright, just not in a good way.

Disa=resonance flap
Iacv=idle air control valve

*sent from my iTool
I didn't mean it as a fix - just an experiment - but I DID think they were the same thing . This Bentley diagram helps demystify:
(btw - is the theory that the DISA flap action triggers knock sensors resulting in the dip?)

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Old 07-27-2010, 12:35 PM   #42
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I've unplugged the DISA on the dyno, and lost power under the switch-over point.

The knock sensor filters are centered on resonances above 5khz....I doubt the DISA has any influence on them.
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Old 07-27-2010, 01:19 PM   #43
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I'm really excited to see what the next few additions do. Thanks for the comments. Keep them going.
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Old 07-27-2010, 05:16 PM   #44
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Bad post.
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Old 07-27-2010, 05:37 PM   #45
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you may have covered this before but are you running shark or aa? i'm sorry if you have mentioned it I'm going to dyno my car once i get the awd system off i might even do a test run with the transfer case and no front drive shafts. to see the difference if there is any either way good numbers!
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Old 07-28-2010, 09:22 AM   #46
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Sharked.
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Old 07-28-2010, 11:40 AM   #47
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Here's a link to my dyno results; I'm running AA software btw, but also running magnaflow cats... you can still see a small dip at 4200rpm
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Old 07-30-2010, 12:58 PM   #48
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great thread. I need to get rid of my CEL, and get an intake kinda like yours to replace my K&N drop in, and then gonna hit the dyno. you primarily use LG? anyone else in the area good place to go?
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Old 07-30-2010, 01:46 PM   #49
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Dunno. The main reason I'm using LG is for consistency.

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great thread. I need to get rid of my CEL, and get an intake kinda like yours to replace my K&N drop in, and then gonna hit the dyno. you primarily use LG? anyone else in the area good place to go?
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Old 07-30-2010, 02:41 PM   #50
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Here's a link to my dyno results; I'm running AA software btw, but also running magnaflow cats... you can still see a small dip at 4200rpm
nice. was that dip bigger before?
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Old 08-06-2010, 02:30 PM   #51
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TB is at the shop to be bored.
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Old 08-06-2010, 02:44 PM   #52
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Quick update. Ground Control dyno brackets came in. Nothing fancy. They were bare when I got them, so I hit them with a little paint. They bolt on where the bottom of the shock bolts. $50 shipped. Not too bad for an easy mounting point.

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Old 08-06-2010, 03:20 PM   #53
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So if one does not have these things what are the appropriate dyno mount locations?
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Old 08-06-2010, 03:39 PM   #54
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I asked one well known member of the forum. He suggested running straps around your entire subframe assembly, and then strapping to those straps.

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So if one does not have these things what are the appropriate dyno mount locations?
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Old 08-06-2010, 03:44 PM   #55
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I asked one well known member of the forum. He suggested running straps around your entire subframe assembly, and then strapping to those straps.
is that how you did it in the past?
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Old 08-06-2010, 03:56 PM   #56
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No. Unfortunately, I think the operator hooked it up to the LCAs. We tried to avoid it last time and ended up pulling the shock off. (He attached to the bottom of the shock)

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is that how you did it in the past?
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Old 08-06-2010, 06:36 PM   #57
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Where did you order these from? i went to the GC website and found nothing...
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Old 08-06-2010, 08:07 PM   #58
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They weren't on the website. I had to call and order them.

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Where did you order these from? i went to the GC website and found nothing...
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Old 08-06-2010, 11:57 PM   #59
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Quick update. Ground Control dyno brackets came in. Nothing fancy. They were bare when I got them, so I hit them with a little paint. They bolt on where the bottom of the shock bolts. $50 shipped. Not too bad for an easy mounting point.

$50!!!!!! are you kidding me.

Christ, thats a lot for two pieces of metal with some holes drill in them. i think ill be making my own. been meaning to make some tie down points on my e46. I dont know why bmw got rid of the ones they had on the e30's
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Old 08-07-2010, 09:24 AM   #60
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Well, that's with 2 sets of shipping, too. He told me $20 plus shipping. It went from the guys that made them to GC, and then from GC to me.

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$50!!!!!! are you kidding me.

Christ, thats a lot for two pieces of metal with some holes drill in them. i think ill be making my own. been meaning to make some tie down points on my e46. I dont know why bmw got rid of the ones they had on the e30's
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