[Zepphonn]

For those of you that have tuned your n52, how much power are you guys now making? Also have you guys tested and 0-100 times? I have a 125 with a detuned n52 (160kw And a stage 3 manifold) And was looking to get it tuned.

Thanks all

[Delta0311]

Originally Posted by Zepphonn

For those of you that have tuned your n52, how much power are you guys now making? Also have you guys tested and 0-100 times? I have a 125 with a detuned n52 (160kw And a stage 3 manifold) And was looking to get it tuned.

Thanks all

Best you can hope for is close to stock 06 N52 330 HP numbers. Top tuners for the N52 were AA and Eurocharged. Both netted about the same gains, which was roughly 15hp. The nice thing about the tunes though was that if you had an auto tranny it really smoothed out the shifts.

I had an AA tune, 3 stage mainfold, bmw performance exhaust, and a euro intake. I would stay that put me slightly above the stock HP of a 330, so a bit above 255hp. My vehicle was a 07 E90 328. It did feel responsive and peppy with all the work done but it still did not compare to my 335. I also got a 228 and I would stay it would also spank my old tuned 328.

[rjahl]

Originally Posted by Delta0311

Best you can hope for is close to stock 06 N52 330 HP numbers. Top tuners for the N52 were AA and Eurocharged. Both netted about the same gains, which was roughly 15hp. The nice thing about the tunes though was that if you had an auto tranny it really smoothed out the shifts.

I had an AA tune, 3 stage mainfold, bmw performance exhaust, and a euro intake. I would stay that put me slightly above the stock HP of a 330, so a bit above 255hp. My vehicle was a 07 E90 328. It did feel responsive and peppy with all the work done but it still did not compare to my 335. I also got a 228 and I would stay it would also spank my old tuned 328.

To clarify, if you have a 3 liter N52 with a three stage manifold you can match the 330 N52 using a stock 330 tune. Bimmerlabs can set that up for a really good price. If you want more, there are a few tuners to pick from, stock motors should see about 15 RWHP over the base stock 330 tune. Bob from BPC is probably the best. He's recently pulled out of BPC, you'll need to search for his recent contacts.

There is also a very informative thread showing dozens of N52 dyno pulls. Something the like "official Dyno thread". Look that up.

[desertman123]

Take a look at my build thread too I'm FBO for this motor without adding boost.

@stage_fp on instagram too

[hassmaschine]

Originally Posted by Delta0311

Best you can hope for is close to stock 06 N52 330 HP numbers. Top tuners for the N52 were AA and Eurocharged. Both netted about the same gains, which was roughly 15hp. The nice thing about the tunes though was that if you had an auto tranny it really smoothed out the shifts.

I had an AA tune, 3 stage mainfold, bmw performance exhaust, and a euro intake. I would stay that put me slightly above the stock HP of a 330, so a bit above 255hp. My vehicle was a 07 E90 328. It did feel responsive and peppy with all the work done but it still did not compare to my 335. I also got a 228 and I would stay it would also spank my old tuned 328.

Neither of those have been top N52 tuners for quite a long time (from a technical perspective). Maybe by sales..

[_Marco_]

Is bimmerlabs still alive for a custom tune or only the stock files available?

[Delta0311]

Originally Posted by hassmaschine

Neither of those have been top N52 tuners for quite a long time (from a technical perspective). Maybe by sales..

Mind you I sold my 328 in 2013. At the time the were the only game in town.

[carscatscoffee15]

Originally Posted by desertman123

Take a look at my build thread too I'm FBO for this motor without adding boost.

@stage_fp on instagram too

I went from 196 HP (AA exhaust, headers, tune) to 216.59 (that day was hot, in the 90s with high humidity) with FBOs (AA axle back exhaust, AA catless headers + 3IM + MILVs + StageFP dyno tune). The car doesn't need a burble tune because it sings high into the rev range and doesn't feel like it runs out of power even in 6th gear

This is on an AT numbers will improve in the cars life if all goes well

[Zepphonn]

Thanks all for the replies

Anyone know how similar/different the 125 gears are tO the 130/330?
I’ve also heard good reviews about Celtic/ tuning (based in Australia), anyone have any experiences with them?

[Fritzer]

Originally Posted by Delta0311

I also got a 228 and I would stay it would also spank my old tuned 328.

That N20 engine is pretty neat, to be honest. Have a 428i that I've driven a couple thousand miles in and it's surprisingly peppy. I think I heard Steve Dinan talking about it on TST. Something about getting a N20 with bolt-ons, aggressive tune, around 300whp. Probably more with upgraded turbo, but I don't know how much that stock engine can take with the internals.

[bimmer_mopar_harley]

I have a e90 328i. I need to have tuned, I have no idea what I should go with I'm constantly trying new things out. And would like to make adjustments as I do so. Current mods are full exhaust system. headers no cats Megan racing muffler. I have stage 3 intake manifold stage 2 afe air intake. I deleted fuel pump control module and run two walboro 400 one in each side of saddle tank ran 1/2" line to external regulator then 1/2" to rail I currently run 30lb matched ev14 injectors @30psi. Headset is a 4.44 with lsd. I'm lookibg at doing cams here in the near future. All suspension has been upgraded front and rear with adjustable arms and is lowered not that matters.

[W37V]

Originally Posted by bimmer_mopar_harley

I have a e90 328i. I need to have tuned, I have no idea what I should go with I'm constantly trying new things out. And would like to make adjustments as I do so. Current mods are full exhaust system. headers no cats Megan racing muffler. I have stage 3 intake manifold stage 2 afe air intake. I deleted fuel pump control module and run two walboro 400 one in each side of saddle tank ran 1/2" line to external regulator then 1/2" to rail I currently run 30lb matched ev14 injectors @30psi. Headset is a 4.44 with lsd. I'm lookibg at doing cams here in the near future. All suspension has been upgraded front and rear with adjustable arms and is lowered not that matters.

Maybe I’m missing something, but what are you doing with all this extra fuel? Are you boosted? If so, what are you running?

Otherwise, stock components provide more than enough fuel on what you can accomplish wile staying NA. Even then, simply upgrading injectors to m3 injectors would provide sufficient fueling.

For anyone else here is official dyno thread that kind of died when the axiom got banned.
https://www.e90post.com/forums/showthread.php?t=916863

[Biginboca]

Originally Posted by bimmer_mopar_harley

I have a e90 328i. I need to have tuned, I have no idea what I should go with I'm constantly trying new things out. And would like to make adjustments as I do so. Current mods are full exhaust system. headers no cats Megan racing muffler. I have stage 3 intake manifold stage 2 afe air intake. I deleted fuel pump control module and run two walboro 400 one in each side of saddle tank ran 1/2" line to external regulator then 1/2" to rail I currently run 30lb matched ev14 injectors @30psi. Headset is a 4.44 with lsd. I'm lookibg at doing cams here in the near future. All suspension has been upgraded front and rear with adjustable arms and is lowered not that matters.

You upgraded all your fueling and injectors but don’t have a tune? Are you prepping for a SC or Turbo? I don’t see the reason to do all that for fueling. Forum reports say stock fueling is good to about 280whp, above that you can swap to the S65 fuel injectors and then you are good for up to 330whp or so.

Maybe you upgraded the fueling to run E85? But then you need the tune you don’t have?

I think you mean you are running 4.44 final drive? Dang that’s steep gears I bet you can do some killer 2nd gear burnouts. You must be doing close to 5,000 rpms at 80mph?

[Rmtt]

I'm FBO/Tuned as well with everything I know of that you can throw at this motor aside from still having secondary cats. I figure optimistically without a dyno that I probably have between 270-280 up at the crank.

But I do plan on talking with Bob after reading the "Moser" thread about the ESS unit. I think they ended up at about 300 whp.....and I wonder how Milvs would affect the outcome of that. But something like 300whp, moving to an LSD, and still being reliable would make this car a perfect daily driver in my opinion.

I understand this really isn't the platform for huge power, but that's the fun of it. I have another car that has plenty of power.....and it's almost too easy adding more to it. But I feel it's balanced perfectly with what it has.

Would also love to see some progression on the exhaust cam project, but I understand there may not be enough interest still.

[rjahl]

Originally Posted by Biginboca

You upgraded all your fueling and injectors but don't have a tune? Are you prepping for a SC or Turbo? I don't see the reason to do all that for fueling. Forum reports say stock fueling is good to about 280whp, above that you can swap to the S65 fuel injectors and then you are good for up to 330whp or so.

Maybe you upgraded the fueling to run E85? But then you need the tune you don't have?

I think you mean you are running 4.44 final drive? Dang that's steep gears I bet you can do some killer 2nd gear burnouts. You must be doing close to 5,000 rpms at 80mph?

I'm surprised it even runs without a tune. The fuel trims must be nuts.

[200,000 club]

Theres this guy somewhere on this thread, I'll find his username if you want, but he has a 265 whp e92 328i. It has A LOT of stuff done to it, I cant even remember what, but I'll try to link the thread where he names it

https://www.e90post.com/forums/showthread.php?t=1579797

[bimmer_mopar_harley]

Well I have a fully built n54 single turbo top mount ready to be swapped in but I'm going to do it 6sp swap at same time. Which I still need buy. So when my control module went bad and failed as well as the regulator knowing I was going to be boosted soon figured Id do it right the first time.i was bored at the shop last week and figured I'd do comression and leak down and I couldn't believe its barely broken in @101k.. iv worked on enough of these motors and was almost thinking of pulling the 6870 off the n54 motor I have built and running it on the n52 maybe not with way that's why the extra fuel. As far as suffiecent stock components the n52 pushes both the injectors and coil packs to there max. Yeah it works but they fail often and watching my fuel trims with my autel I was running pretty lean with all the extra airflow in and out.

[bimmer_mopar_harley]

Originally Posted by rjahl

I'm surprised it even runs without a tune. The fuel trims must be nuts.

That's right I'm dropping the built n54 with 6sp soon thats why I've done the extra fueling and yes it's e85 rated which is also why need it tuned because there are warnings about using gasonline instead e85 destroing and diminishing life of the fuel components
Yeah final drive, is what I'm referring to as gear set yeah did allot research on factory installed lsd turns out they only out them in the m cars now I ended up ordering one that came off a e53xi I believe with 26k on it it's a little taller gearset than I wanted but hey why not with gearing in my trans it wouldn't be that bad I'm at about 4k at 80mpi can start off no problem in 5 gear if I want. had to Fabricate custom mounts for the front ears use original rear. First launch using my air lockers caused to rr axle to break twisted the rear frame not bad. All Because the diff bushings were pulled out from frame so replaced the rear sub frame used same mounts I made already and built a lockdown kit for it and add another rear bushing that I pressed in to rear portion of the subframe that I cut a whole in for and haven't had issue since .

I haven't needed a tune yet still technically don't. It runs great with no issues. After each thing I've done I was ready to tune if needed just never ended up needing to I'm a tech and get bored doing routine maintenance and leak repairs everyday so to keep my self enjoying what I do I tinker with MIne. Lol stft is money ltft was a little rich I adjusted pressure and programmed the idle to be set at 900rpm permanently it about where it needs to be I'll take some pics of data tomorrow car pulls hard and definitely had potential for more WITH A TUNE!! LOL...btw I posted the rear diff install on here somewhere when I did it

So any suggestions as far as a tune??

[3002 tii]

I was putting down 235whp and that was with a high flow cat. Full catless plus MILV’s would’ve easily topped 240whp.

[dwashy]

Originally Posted by bimmer_mopar_harley

they only out them in the m cars now I ended up ordering one that came off a e53xi I believe with 26k on it it's a little taller gearset than I wanted but hey why not with gearing in my trans it wouldn't be that bad I'm at about 4k at 80mpi can start off no problem in 5 gear if I want. had to Fabricate custom mounts for the front ears use original rear. First launch using my air lockers caused to rr axle to break twisted the rear frame not bad. All Because the diff bushings were pulled out from frame so replaced the rear sub frame used same mounts I made already and built a lockdown kit for it and add another rear bushing that I pressed in to rear portion of the subframe that I cut a whole in for and haven't had issue since

Yo you should give us some pics of this frankenstein e90! DigiDon who had (has?) a turbo N52 used the AEM FIC which I think worked well for him. However I'd go with Bob at StageFP, if you're wanting to work with someone to sort the tune out.

[200,000 club]

How much does that turbo n52 make

[200,000 club]

Originally Posted by 3002 tii

I was putting down 235whp and that was with a high flow cat. Full catless plus MILV’s would’ve easily topped 240whp.

What kind of catless headers were you running?