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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Lag and Wastegate Rattle Fix... and it's free for PROcede users



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      11-06-2008, 04:10 PM   #23
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I recently removed my V2 for service, and they were so kind to update my software from pre-29.2 to whatever the latest is. Icky lag, just about ruins the car, IMO. Just got the new harness and v3.1 software from Shiv a couple days ago, and it feels better than ever. I'm quite impressed.
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      11-06-2008, 04:17 PM   #24
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Quote:
Originally Posted by jpsimon View Post
turn it on and go for a drive, you'll love it
I guess it defaults to "1" (On), so I just never noticed it was already on. I have noticed better throttle response for Map 2, but I just figured it was b/c of Shiv's changes to Map 2 specifically for better throttle response. Map 2 is now the default map.
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      11-06-2008, 04:18 PM   #25
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I was driving today with the latest rattle fix and the rattle is back. I am using the map with the more aggressive throttle mapping. May have to try Mr. 5's fix.
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      11-06-2008, 04:26 PM   #26
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Quote:
Originally Posted by shiv@vishnu View Post
It may even be a solution to male pattern baldness. More testing needs to be done on this though.

shiv
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      11-06-2008, 04:35 PM   #27
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Originally Posted by Blk07335i View Post
I was driving today with the latest rattle fix and the rattle is back. I am using the map with the more aggressive throttle mapping. May have to try Mr. 5's fix.
no. Just email me and describe the conditions where the rattle occurs and I can send u a map that holds the wg more open or more closed. Maybe your my current settings aren't enough for certain cars.

Shiv
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      11-06-2008, 08:36 PM   #28
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Quote:
Originally Posted by shiv@vishnu View Post
no. Just email me and describe the conditions where the rattle occurs and I can send u a map that holds the wg more open or more closed. Maybe your my current settings aren't enough for certain cars.

Shiv
Ah, that's what I thought. So you're just holding it in the middle, so there's nothing to rattle against. At the low RPM's it's not effecting engine power anyway. Or do I have my head up my
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      11-06-2008, 11:03 PM   #29
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ill get in on that male pattern baldness fix, 1.0
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      11-07-2008, 01:00 AM   #30
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Quote:
Originally Posted by Blk07335i View Post
I was driving today with the latest rattle fix and the rattle is back. I am using the map with the more aggressive throttle mapping. May have to try Mr. 5's fix.
I had Mr. 5 do his fix on my car... the rattle from the rear turbo is gone but the front turbo's wg still rattles. Or what we assume is the front wg.
I just installed the V3 hoping it would solve the rattle but it didnt work


Quote:
Originally Posted by shiv@vishnu View Post
no. Just email me and describe the conditions where the rattle occurs and I can send u a map that holds the wg more open or more closed. Maybe your my current settings aren't enough for certain cars.

Shiv
Shiv,

I sent you a PM in regards to when i hear the rattle... let me know if you can help in the next couple days or else the car is going to the dealer....

Thanks
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      11-07-2008, 03:47 AM   #31
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Good morning Shiv; I just emailed you the datalogs that I did comparing the 11-04 map vs. the 10-17 map. Both at default, the 10-17 map seems to run stronger; It runs higher boost levels but a little hotter AIT (44 deg C max) vs. (41 deg C max) for the 11-04. I have a Spearco IC.
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      11-07-2008, 07:25 AM   #32
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Quote:
Originally Posted by shiv@vishnu View Post
no. Just email me and describe the conditions where the rattle occurs and I can send u a map that holds the wg more open or more closed. Maybe your my current settings aren't enough for certain cars.

Shiv
OK. will do.
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      11-07-2008, 07:47 AM   #33
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if i have 29.1.1 is it necessarily to update?

p.s at the moment dont have vishnu products just asking in a future will get something for sure from Shiv
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      11-07-2008, 12:49 PM   #34
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Thanks for the emails/logs guys. Give me 48hrs and I'll get back to all of them

SHiv
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      11-07-2008, 01:01 PM   #35
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Quote:
Originally Posted by **335i** View Post
if i have 29.1.1 is it necessarily to update?

p.s at the moment dont have vishnu products just asking in a future will get something for sure from Shiv
I am pre 29.2 as well, and this update made a world of difference!
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      11-07-2008, 01:11 PM   #36
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Quote:
Originally Posted by shiv@vishnu View Post
It was buried in another thread but I think this feature is probably significant enough to deserve its own thread.

More info on Lag/Rattle Fix (as well as other features): http://www.e90post.com/forums/showthread.php?t=183865


It may even be a solution to male pattern baldness. More testing needs to be done on this though.

shiv
When will you know?
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      11-07-2008, 02:16 PM   #37
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Quote:
Originally Posted by shyestsparks View Post
Good morning Shiv; I just emailed you the datalogs that I did comparing the 11-04 map vs. the 10-17 map. Both at default, the 10-17 map seems to run stronger; It runs higher boost levels but a little hotter AIT (44 deg C max) vs. (41 deg C max) for the 11-04. I have a Spearco IC.
why is this?
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      11-07-2008, 02:28 PM   #38
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Because the new beta maps have revised IAT compensations that will result in approx 1psi lower boost when it's cold. They arent the ideal "Dyno day" maps with the factory UT settings. Next week, I'll ask you guys to send me datalogs so we can settle on desired UT values for those who want max power. But for now, the focus is on drivability and safety features.

Shiv
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      11-07-2008, 02:30 PM   #39
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I'm gonna datalog some today/tonight, so i'll have some logs for you. I'm looking for max power, so I'm curious about next week
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      11-10-2008, 02:20 AM   #40
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I find my self not using the sport button as much as before! Great work once again. I hit 160 mph on saturday night, shhhh.... I usually hit 140 and stop, but this time I just let it go and it actually didnt take that much longer to hit the 160.. Instant. I tell my friends that shiv likes the cars to make top end power

I feel way less lag around town and the car is more driveable now with lag fix on. Thanks a bunch ! I have stage 0 at 84 percent. Oh yeah Im pre 29.2 and Map 2 is default on my set up. The throttle is much much sharper !! I like it now cause I dont HAVE to push sport button to get that extra throttle response. Good job
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      11-10-2008, 04:48 PM   #41
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