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  • AlexQuattro's Avatar
    Today, 06:32 PM
    I know man... If it wasn't for the major subframe issue on the E46, I'd stop looking for a 335 and get the MaximumPSI kit.
    10 replies | 415 view(s)
  • geshsoft's Avatar
    Today, 06:28 PM
    geshsoft replied to a thread Need help with Fried MOSFETS in N54
    I am curious now - what is the FET failure mode? MOSFETs are usually damaged by exceeding Vds (drain-source voltage), Vgs (gate-source voltage), or Ids (drain-source current). Avalanching can also damage them but that is not very common. Over current condition would usually spell out load failure or wiring harness failure leading to intermittent or permanent shorting. Exceeding Vds is usually due to dirty power or improper reactive load driving (lack of snubbing, reverse transient protection, etc). Power FETs have built in reverse transient diodes in the form of body diodes that are good enough for most applications. Also, how do we know that the MOSFETs are damaged before the coil? If this is the case for sure the FETs can upgraded to a better part easily.
    24 replies | 456 view(s)
  • ls3c6's Avatar
    Today, 05:30 PM
    Finally was able to convince them to replace the injectors, it's been a month and the car runs beautifully. Very happy. Starts very quickly with no misfire or abnormal operation, if I want to get VERY knit picky on warm starts it runs a little rough the first 5 seconds (almost undetectable), nothing I'd even complain about.
    48 replies | 1358 view(s)
  • Torgus's Avatar
    Today, 05:01 PM
    What are you thinking for a replacement clutch kit? You are welcome to drive my stage 3+ if you want to try it out.
    41 replies | 688 view(s)
  • subaru335i's Avatar
    27 replies | 674 view(s)
  • oldgixxer's Avatar
    Today, 04:16 PM
    Its an all-out Grudge motor,not really streetable but they are street driven. Ive seen them dyno 300+ on "funny fuel" lol
    27 replies | 674 view(s)
  • BostonBeemah's Avatar
    Today, 04:02 PM
    haha that's actually exactly what I did yesterday but not because of cold start stumbles. My clutch is paying the price for running Wedges beastly e30 backend flash and until I get a new clutch in and my inspection is coming up, figured I would go back to stock flash for the time being to have all the monitors turned back on and drive my "slow" car for a little while :awesome:
    41 replies | 688 view(s)
  • AdminTeam's Avatar
    Today, 03:57 PM
    Welcome to a real enthusiast forum 540iBen.
    0 replies | 36 view(s)
  • jyamona's Avatar
    Today, 03:54 PM
    graph of spool pre and post the Motiv tune?
    68 replies | 2796 view(s)
  • AdminTeam's Avatar
    Today, 03:43 PM
    Welcome TNielson, take a look around, I think you will like what you see.
    0 replies | 25 view(s)
  • hoangkiena222014's Avatar
    Today, 02:51 PM
    upppppppppppppppppppppp phụ chủ thớt
    2 replies | 46 view(s)
  • Carl Morris's Avatar
    Today, 02:32 PM
    For misfire codes, especially when running a high boost tune I'd recommend NGK 5992 plugs gapped close. For jerking/stuttering with no code I would recommend datalogging, what I predict you will see is large timing pulls. I have seen that when exceeding or quickly approaching the load target/limit. Especially in colder weather when it's so much easier to get to the limit. PTF and Wedge may have better techniques but I have dealt with it by raising the load target/limit artificially high and then using the boost multiplier to avoid ever reaching the load target/limit. It has basically eliminated that for me at all times except extremely cold weather, when my artificially high limit still isn't high enough.
    2 replies | 46 view(s)
  • MOTIV Motorsport's Avatar
    Today, 02:25 PM
    Correct. They are the water adapter housings and pipes.
    16 replies | 1024 view(s)
  • litxus's Avatar
    Today, 02:16 PM
    Car is 09 335i N54 auto now about 111k miles. Walnut blast done about 35k miles ago New OEM type Bosch ZGR6STE2 about 5k miles ago New coils about 1k miles ago New injectors 1k miles ago New vacuum tubing about 5k miles ago Car has BB / Wedge flash, but saw no difference in stumble with stock (maybe slightly less). Tried swapping Diverter vales before replacing injectors to new ones and saw no change, car still stumble at low RPM, no issues on idle or at higher RPM. Stutter only when accelerating when cruising and hitting it, more so when there is no gear change (light acceleration). If I go WOT, at times it starts running like crap and starts misfiring along with check engine light. Restarting the car fixes misfiring. Sometimes codes show misfire cylinder 5, 1 and multiple misfires. At this point, I might try swapping DVs again, and next maybe replace charge pipe? It sounds very familiar as on this thread in E90post: Particularly this post: "Mine is is not throwing any codes. From a stop, WOT no problem all the way through. However, when the car is cruising and you do the WOT it shudders/hesitates/hicups, feels thud sounds. But if you just accelerate slowly it's fine, it's when you accelerate fast it shudders again. Any ideas guys.....maybe i just need to live with this....." Any ideas / suggestions welcome.
    2 replies | 46 view(s)
  • subaru335i's Avatar
    Today, 01:42 PM
    Looks like you are right, I found other people saying the 2 digits = Nm/10. That is weird... At any rate even the 530Nm rating for the N54 seems underrated, people have consistently put more torque through them than that without hurting gears right? The only trans problems I have heard about the 6MT's is synchro wear from banging shifts a ton.
    135 replies | 3599 view(s)
  • Flinchy's Avatar
    Today, 01:36 PM
    the last 2 digits are supposed to indicate torque capacity (measured how? who knows.. since the N54 one has shown to handle way more) - 53 being 530nm, 47 being 470nm.. n52 (at least uk/aus) 37bz being 370nm. Why they'd put a weaker trans in?.. It's a 100% parts bin car (bar the body kit), they had the N55 trans in current production.
    135 replies | 3599 view(s)
  • subaru335i's Avatar
    Today, 01:31 PM
    Why do you say it is potentially weaker? Just because it is shared with the N55? Why would they put a weaker transmission in the 1M?
    135 replies | 3599 view(s)
  • Flinchy's Avatar
    Today, 01:31 PM
    what exactly are these? water?
    16 replies | 1024 view(s)
  • Flinchy's Avatar
    Today, 01:25 PM
    the dimensions may be the same, but no it's not the same transmission 35i N54's are the GS6-53BZ.. the N55 and 1M are the.. GS6(could be wrong here)47BZ 1M has a potentially weaker trans than normal N54's.
    135 replies | 3599 view(s)
  • Flinchy's Avatar
    Today, 01:23 PM
    i dunno... $1800 is pretty cheap for what it is other platforms pay $1000+ for OEM got some mates who paid $1800 for something more like a stage 1/2 clutch+fw for their focuses...
    135 replies | 3599 view(s)
  • MFactory's Avatar
    Today, 01:16 PM
    Ok guys, we have the following cores on-the-shelf, ready to be rebuilt and shipped out: 11 x 135i/335i 3.08 MT/AT Large Cores with Helical LSD - $2279.95 inc shipping (+$100 to Canada) and core fee ($500 refundable if we receive your old core back within 30 days) 4 x 135i/335i 3.46 MT/AT Large Cores with Helical LSD - $1999.95 inc shipping (+$100 to Canada) and core fee ($500 refundable if we receive your old core back within 30 days) 2 x 135i/335i 3.46 AT Small Cores with Helical LSD - $1999.95 inc shipping (+$100 to Canada) and core fee ($500 refundable if we receive your old core back within 30 days) These are all the cores that we have in stock at the moment, and will be at least another few weeks before we get our new batch of cores and machined ring gears ready, so if you want to upgrade to an LSD, let me know asap. Anyone who contacts me today can get 10% Discount off the above pricing, first-come-first-served!
    330 replies | 13104 view(s)
  • Snertz's Avatar
    Today, 01:11 PM
    Ouch, glad you're ok. What's the reason for not wanting another one? What's the price range and requirements for the replacement?
    10 replies | 321 view(s)
  • subaru335i's Avatar
    Today, 01:11 PM
    300whp NA?! Show me that! Definitely had to increase displacement to get there though right?
    27 replies | 674 view(s)
  • Terry@BMS's Avatar
    Today, 12:28 PM
    Terry@BMS replied to a thread Knock feedback adjustment in N54
    We sent the car up to FFTEC and it came back with a motor installed, so I didn't personally see any of it. It's some brand of a custom forged piston, basic ported head, OEM valves, VAC springs/retainers, and close to OEM or slightly below on CR.
    17 replies | 355 view(s)
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