[madmantwo]

This won't be a giant, beautiful build thread like some others I've seen, but I wanted to log my experience with the new MMP turbos I just had installed.

Pic for attention:



=== 2010 BSM E92 335i M-Sport ===
Mileage: 76k miles

Prior to installing the turbos, here are the performance-related mods I installed myself:

• VRSF catless DPs
• VRSF 5" FMIC
• ER Chargepipe
• Tial BOV
• MMP DCI
• Secondary cat removal
• Koni Yellow struts w/ Swift Spec-R springs
• M3 front upper/lower control arms
• MFactory Helical LSD
• Powerflex Yellow rear subframe bushings
• Powerflex Purple diff bushings
• E93 M3 front anti-roll bar
• Megan Racing rear toe arms
• Boost Concepts Stage 2 LPFP
• Rogue Engineering transmission mounts
• 235/35R19 front Michelin PSS
• 275/30R19 rear Michelin PSS

While on vacation recently, local e90post member ihernandez7910 installed MMP Stage 3 turbos, MMP inlets/outlets, and 2x 335is right engine mounts. He also replaced my oil pan gasket and walnut blasted my intake valves. You can read his install thread (lots of pictures!) here: http://www.e90post.com/forums/showthread.php?t=1348150

Before/After:



Now for my impressions/reviews/experiences. This will be something I update as I go, because we have conveniently had nothing but cold, wet roads and snow since returning home to Seattle, and I haven't been able to do enough logging to finish dialing in my tune from Wedge. Also, I am only running 92 octane for now because you may have noticed my clutch is still stock . That will be replaced soon, along with a larger FMIC.

Initial impressions: these things RIP. It is incredible how hard my car keeps pulling at the upper end of the RPM range! Also, they spool plenty quick enough for a DD; I have done a couple logging runs on the base map provided by Wedge, and it looks like I'm hitting the ~18psi target by 3400 RPM. WGDC is under 40% during the entire run once it hits 18psi. Here is a snapshot of the log, I believe my clutch slipped during this run which explains the RPM rise and plateau



Ken got back to me with a map revision the same day, even though it was Super Bowl Sunday. I haven't been able to get any logs for it due to the snow on the roads, but it feels more aggressive

Goals now are to finalize the tune and get this thing on the dyno (if my clutch holds up long enough)

UPDATE 02/21/2017

Went to get logs using the v2 map provided by Ken, and got a misfire. Ended up replacing spark plugs/coils because they were due for a change. Got the Eldor coils again, and got NGK 95770 plugs gapped to 0.018" as recommended by Ken. Before I had only gapped them to 0.024".

No more misfire! Ken gave me a call and let me know that the logs looked perfect. Right now, the boost target is getting calculated to around 17-18psi which probably puts me around 450whp. Not bad for 92 octane. He also let me know that if I wanted to I could push the boost to around 22psi and hit ~500whp but that was risky on pump without spraying meth. Personally, 450whp is plenty for me as a DD, so that's where I'll leave it for now. My stock clutch has only about ~20k miles on it, and it's holding up OK so I'm just going to enjoy this setup until something breaks (inevitably).

Big thank you to MM Performance for making awesome turbos and WedgePerformance for responding to all my emails on the same day and getting my car running great!

Update 05/19/2017

I, uh, totaled my car. Was doing some logging, finished logging, left DTC/DSC off, it started pouring, made a pass on the freeway, back kicked out really hard going over a raised expansion joint and I spun across all lanes, slamming into the guardrail. I know it sounds like I was driving like a maniac but it really was nothing but a hard acceleration in very hard rain without stability control. Still dumb on my part, lot of regret. On to the next..

[Tiago@VRSF]

Looks great man! You're right, you'll definitely need a larger intercooler for that setup!

[madmantwo]

Originally Posted by Tiago@VRSF

Looks great man! You're right, you'll definitely need a larger intercooler for that setup!

Thanks! And yeah, this 5" one was perfect for stock turbos but it's time to upgrade

[madmantwo]

Updated with tuning results

[nitehawk]

Nice, any plans to get it on the dyno?

[madmantwo]

Originally Posted by nitehawk

Nice, any plans to get it on the dyno?

Yeah I plan to get it on the dyno, with this current map and maybe a more aggressive dyno map just to see its limits on pump gas

[terryd5150]

Interesting thread.

Thanks for posting.

[cortez08]

Thanks for posting. Very interested in the dyno results. How is the vibration of your car with the bushings and trans mounts?

[madmantwo]

Originally Posted by cortez08

Thanks for posting. Very interested in the dyno results. How is the vibration of your car with the bushings and trans mounts?

Not noticeably different than stock, feels very smooth

[Sertone777]

Would be nice to see where this is all going. Planning on some Mmp turbo's myself. Nice to see reviews.

[madmantwo]

Originally Posted by Sertone777

Would be nice to see where this is all going. Planning on some Mmp turbo's myself. Nice to see reviews.

Have been too busy to progress any further, but I will say I've had no issues so far with the turbos. Highly recommend them!

[madmantwo]

Updated first post

[philtr]

Wow, really sorry to hear that. Glad that it seems you are unharmed and I hope to hear about your next build when the time comes.

[Sfvalley135i]

I'll take your turbos now that you don't need them

[madmantwo]

Originally Posted by Sfvalley135i

I'll take your turbos now that you don't need them

Turbos are sold but I'll be making a part-out thread once the local guys finish buying parts off me.

[madmantwo]

Originally Posted by ********

Well Im happy to see that you are still alive and not hurt. I lost my 335is same way, apparently there was a passing cloud that rain on one side of the highway and the other side dry. I came down the south bound that was dry so going back on the north bound side ran into a wet spot and the back end pop out to the right, missed a double sign pole, onto the south bound lane, the way I came, and right into a ditch of trees

I dont miss the car at all, I miss the DCT....lol

Damn, and I thought I was lucky! Yeah it could have been way worse, I miss my car but it was a good learning experience building it up. Will continue to watch the developments you guys are making on this platform and I'll be back soon enough

[langsbr]

Damn that sucks man. Glad you are ok. What are you moving on to for now?

[terryd5150]

Glad you're ok.

That's my main concern with LSD on these cars.

[Poldav6]

Originally Posted by terryd5150

Glad you're ok.

That's my main concern with LSD on these cars.

Exactly. After ending off road once, I think it is not a good idea to switch dtc off, even under dry conditions (with LSD)

[madmantwo]

Originally Posted by Poldav6

Exactly. After ending off road once, I think it is not a good idea to switch dtc off, even under dry conditions (with LSD)

Totally agree (now)

[madmantwo]

Originally Posted by langsbr

Damn that sucks man. Glad you are ok. What are you moving on to for now?

I can't decide. Might pick up a manual Chevy SS if I can find one, test drove a used CPO one yesterday but the dealer wouldn't budge on their price. That's the only one for sale within like 1000 miles of me, gotta be patient I guess. Also considering a Focus RS or a diesel truck, I don't know what I want everything seems less fun than a 335is with DCT but I am moving to a house without a garage for the next year and won't be able to work on it as much as I would want/need to

[pysical]

Originally Posted by madmantwo

I can't decide. Might pick up a manual Chevy SS if I can find one, test drove a used CPO one yesterday but the dealer wouldn't budge on their price. That's the only one for sale within like 1000 miles of me, gotta be patient I guess. Also considering a Focus RS or a diesel truck, I don't know what I want everything seems less fun than a 335is with DCT but I am moving to a house without a garage for the next year and won't be able to work on it as much as I would want/need to

What do you plan on doing with the stage 3 turbos?