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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 328's N52 ECU Successfully Tuned by CS Tuning/LET Motorsports



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      04-12-2009, 12:21 PM   #23
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Quote:
Originally Posted by UdubBadger View Post
Because every engine is different its hard to say... plus we were working on a very small amount of time with a few limiting factors:
1. It was on a Mustang Dyno so the numbers are usually a little lower than on most other dynos.
2. I have an xi so I lose close to 20% of power between the crank and the wheels... a rwd bmw will only lose about 8-10% normally.
3. I have a burnt up clutch so I don't think they ran it as hard as they could've nor got as clean of a pull as they would have liked to.

With all of that being said, I think its best not to put up an actual number right now but I promise I will very soon... I don't want to over/under estimate just to be fair to Tony and CS Tuning and also to anyone who might want this tune so they don't expect more than they can actually do.

I can tell you however that they are aiming to get about 10-15hp (about the same in torque) out of these tunes and after driving 150 miles with it on the car, I have noticed a significant difference in the mid range pull, mostly in 3rd and 4th gear. With a little bit of tweaking and a new clutch I think this car will be up there with a stock 330i if not quicker.

I don't know about the price because I think they are still working that out right now but I would assume somewhere around the $400-800 range would be a fair estimate.

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Originally Posted by UdubBadger View Post
Hey everyone, I edited the 1st post with the correct numbers Tony got me this morning.

After only 1 try mapping the ECU we made 6hp and 9 ft/lbs at the wheels.

I will keep everyone updated when I get back on a dyno in a few weeks and try to get a little more power by tweaking the maps.
hey 6hp/9lbs is pretty good. I hope the price is well priced.
i guess paired with this upcoming flash and injen intake should
have some great numbers. BTW did you have an aftermarket intake
while on dyno?
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      04-12-2009, 12:24 PM   #24
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Originally Posted by FrankiE90 View Post
hey 6hp/9lbs is pretty good. I hope the price is well priced.
i guess paired with this upcoming flash and injen intake should
have some great numbers. BTW did you have an aftermarket intake
while on dyno?
yes, I have a simota v1. I also have the rpi scoops but the 2 fans they had going were pretty low on the ground... I think if we put them on something and make them level to the grill it might help a little bit more too... seemed like the air wasn't really getting up to the grills very well.

I hear the injen actually doesn't as well because it still sucks in a lot of hot air since its not enclosed.
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      04-12-2009, 12:28 PM   #25
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I hope the price is well priced.

updated in the 1st post

Last edited by UdubBadger; 04-16-2009 at 10:18 PM.
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      04-12-2009, 02:27 PM   #26
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Oh wow. Congrats on that. What did they do to gain that? Made it run richer? Any change to the Valvetronic? I'm so curious, haha.
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      04-12-2009, 02:30 PM   #27
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Oh wow. Congrats on that. What did they do to gain that? Made it run richer? Any change to the Valvetronic? I'm so curious, haha.
I'll ask Tony, all I really know is they are basically messing with the air/fuel ratios and a few other tricks. I'll let him post some kind of an explanation up when he feels ready to.
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      04-12-2009, 02:54 PM   #28
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keep me updated, this with the addition to my eisenmann sport exhaust and injen intake should be cool!
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      04-12-2009, 04:22 PM   #29
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Yeah its a pretty nice setup if you are running an intake/exhaust combo. You might even see a tiny bit more gains than from mine cuz I only have the intake.
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      04-12-2009, 10:31 PM   #30
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Yeah its a pretty nice setup if you are running an intake/exhaust combo. You might even see a tiny bit more gains than from mine cuz I only have the intake.
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      04-12-2009, 11:05 PM   #31
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i wonder what they can do with a 330
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      04-12-2009, 11:07 PM   #32
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im actually talking with tony and hope to setup something soon with my 330.
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      04-12-2009, 11:17 PM   #33
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Nice Ed
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      04-12-2009, 11:23 PM   #34
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yea its your fault seth. haha bastard!!
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      04-12-2009, 11:26 PM   #35
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Guilty as charged... I've been waiting for a tune on this car since the day I bought it. Glad its finally happening
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      04-12-2009, 11:31 PM   #36
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be sure to post up anything about the 330i tunes
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      04-12-2009, 11:42 PM   #37
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I will also talk to Tony but I would expect to see about the same kinds of numbers put out for a 330i
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      04-13-2009, 01:09 AM   #38
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im actually talking with tony and hope to setup something soon with my 330.
Keep us updated!!!!
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      04-13-2009, 01:56 AM   #39
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Quote:
Originally Posted by UdubBadger View Post
I'll ask Tony, all I really know is they are basically messing with the air/fuel ratios and a few other tricks. I'll let him post some kind of an explanation up when he feels ready to.
Haha. Alright. Sounds good to me. I just always thought that messing with the valvetronic could really help produce gains.
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      04-13-2009, 10:10 AM   #40
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the way the valvetronic works is very complicated, so I doubt they are messing with it just yet. those numbers are better indicators of fuel and timing changes. Once you start getting into valve lift, you can see bigger gains, but because the valvetronic continuously alters lift depending on speed, load, throttle position, etc., it will be much harder to tune.

Maybe they can figure out a way to patch-in the higher lift valvetronic programming from a 330, and then tune the fuel and timing to match the 328's engine and intake.
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      04-13-2009, 10:35 AM   #41
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Yeah I'd bet the vavletronic is left alone at this point.
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      04-13-2009, 11:03 AM   #42
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Great news for teh 328/330 crowd!
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      04-13-2009, 11:43 AM   #43
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You shouldn't be posting anything like this unless you have the dyno results jk.
That is great news, just can't wait for the dyno results.
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      04-13-2009, 12:50 PM   #44
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Haha well Tony kept them and I'm not going to "publish" anything until they tell me its the best tune they have for the car. I'll be trying to get back in there sometime in the next week or two for them to finish up. After that, I'll make sure I post up my dynos and all that... though since LETMotorsports isn't a vendor I don't know what the can offically say/publish on these forums w/o getting in trouble.

Last edited by UdubBadger; 04-16-2009 at 10:19 PM.
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