I swore I wouldn't, but so it begins

EZgo · 04-26-2016, 08:28 PM

My other two BMW's have mods, tunes ect but I swore I wasn't going to mod my wife's (newer to us) 2011 335i...but I can't hold back! So, JB4 with flex fuel, downpipe, and new spark plugs and coils are going in the sucker this week. A VRSF intercooler will cometh soon enough.

I'm really looking forward to using the hijack JB4 boost gauge. This N55 is so damn slow compared to my N54 I swear it must have a boost leak. We'll see.

weehe126 · 04-26-2016, 11:51 PM

Lets see, no info on why you think it's a boost leak other than its slower than your N54. No logs posted, no actual testing done. Either you are troll or haven't learned anything from your N54...

LGCubana · 04-27-2016, 01:38 AM

Where's the chargepipe ?
That should go in with the JB4

If you are in S. Fl, the FMIC would come before the down pipe.

EZgo · 04-27-2016, 09:15 AM

Quote:

Originally Posted by weehe126

Lets see, no info on why you think it's a boost leak other than its slower than your N54. No logs posted, no actual testing done. Either you are troll or haven't learned anything from your N54...

Why so serious? That's why it's a guess at this point- can't run logs until the JB4 is installed!

I haven't done testing yet other than it feels painfully slow, the acceleration is pretty flat with no hit from the turbo, and it reminds me of two different times I got my car back from a shop and it felt lethargic with no kick from the turbo...ended up being from the mechanic accidentally breaking the fitting to a vacuum canister and another a charge pipe.

EZgo · 04-27-2016, 09:24 AM

Quote:

Originally Posted by LGCubana

Where's the chargepipe ?
That should go in with the JB4

If you are in S. Fl, the FMIC would come before the down pipe.

Yes, these things will come. However, plenty of benefit to be received from JB4, DP, and magic corn juice for the time being.

I haven't really researched chargepipes yet and I'm on the fence about which IC- 5er or 7er VRSF. I really want to go with the 7er but am hesitant about cutting, being that I just purchased and expensive 3rd party warranty and would like to avoid the scrutiny should it be field reviewed.

TBN54 · 04-27-2016, 09:38 AM

Prius life.

weehe126 · 04-27-2016, 11:53 AM

Well then that is your problem. Comparing a stock N55 to a tuned N54. Of course it will feel slow.

EZgo · 04-27-2016, 12:45 PM

Quote:

Originally Posted by weehe126

Well then that is your problem. Comparing a stock N55 to a tuned N54. Of course it will feel slow.

No sir, I'm comparing the stock N55 to way my N54 felt stock.

Dylanize · 04-27-2016, 04:12 PM

Quote:

Originally Posted by EZgo

No sir, I'm comparing the stock N55 to way my N54 felt stock.

Are they both the same type of trans? An auto trans is gonna take a decent loss in power compared to 6spd. if not then they should be about the same stock for stock. I've seen dyno's of stock N55 vs stock N54 and they were close, some the N55 made higher numbers, others the N54. But they were always within ~10 hp/tq.

So yeah they should feel pretty similar. However if your coming from a modded N54 I doubt you remember what your stock n54 felt like. You'd probably feel the same way if you went back to a stock n54.

Dark_Knight_335 · 04-27-2016, 06:05 PM

Haha- LOVE this poll!

dannyle27 · 04-27-2016, 06:26 PM

Quote:

Originally Posted by Dark_Knight_335

Haha- LOVE this poll!

I think its stupid. Waste of forum space

Dark_Knight_335 · 04-27-2016, 07:54 PM

Quote:

Originally Posted by dannyle27

Quote:

Originally Posted by Dark_Knight_335

Haha- LOVE this poll!

I think its stupid. Waste of forum space

Oh it was funny...

Besides, so are 90% of the posts on these forums these days- us veterans have definitely seen the difference.

You can always report OP and have him banned, I suppose...

Johnny Boost · 04-27-2016, 10:53 PM

Stock for stock, the E90 N55 and N54 have nearly identical performance. The newer F30/F32 N55s are much faster than the N54 stock.

EZgo · 04-28-2016, 02:08 PM

Quote:

Originally Posted by Dylanize

Are they both the same type of trans? An auto trans is gonna take a decent loss in power compared to 6spd. if not then they should be about the same stock for stock. I've seen dyno's of stock N55 vs stock N54 and they were close, some the N55 made higher numbers, others the N54. But they were always within ~10 hp/tq.

So yeah they should feel pretty similar. However if your coming from a modded N54 I doubt you remember what your stock n54 felt like. You'd probably feel the same way if you went back to a stock n54.

Same trans and both E93. Map 0 on the N54 with just a DP is fairly close to stock, but even with a mental adjustment there is a good distance between the two. Leaning heavily towards a boost leak.

EZgo · 04-28-2016, 02:25 PM

Quote:

Originally Posted by dannyle27

I think its stupid. Waste of forum space

Ah man, I'm always sorry to disappoint. I'm sure you won't read this response because it would be stupdester to revisit a stupid waste of forum space thread. On to much more substantial threads like "Ask a Polak ANYTHING" or "Stance Party!"

Quote:

Originally Posted by Dark_Knight_335

Oh it was funny...

Besides, so are 90% of the posts on these forums these days- us veterans have definitely seen the difference.

You can always report OP and have him banned, I suppose...

No way the OP of this masterpiece thread could ever be banned, at least until the dramatic conclusion.

View Poll Results: Boost leak or the N55 is just slow as hell?
Of course the N55 is slow as hell, don't you read the forums?	6	31.58%
You have boost leak, how about sourcing that instead of wasting your time on the forums?	13	68.42%
Voters: 19. You may not vote on this poll

04-26-2016, 08:28 PM	#1
EZgo Private First Class 55 Rep 151 Posts Drives: 2016 740i Join Date: Oct 2015 Location: FL iTrader: (0)	I swore I wouldn't, but so it begins My other two BMW's have mods, tunes ect but I swore I wasn't going to mod my wife's (newer to us) 2011 335i...but I can't hold back! So, JB4 with flex fuel, downpipe, and new spark plugs and coils are going in the sucker this week. A VRSF intercooler will cometh soon enough. I'm really looking forward to using the hijack JB4 boost gauge. This N55 is so damn slow compared to my N54 I swear it must have a boost leak. We'll see.
	Appreciate 0 Tweet

04-26-2016, 11:51 PM	#2
weehe126 Brigadier General 1189 Rep 3,228 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Lets see, no info on why you think it's a boost leak other than its slower than your N54. No logs posted, no actual testing done. Either you are troll or haven't learned anything from your N54...
	Appreciate 0

04-27-2016, 09:38 AM	#6
TBN54 Captain 425 Rep 793 Posts Drives: 08' E92 335 -> 17' F30 340i Join Date: Dec 2015 Location: Upstate NY iTrader: (0)	Prius life.
	Appreciate 0

04-27-2016, 11:53 AM	#7
weehe126 Brigadier General 1189 Rep 3,228 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Well then that is your problem. Comparing a stock N55 to a tuned N54. Of course it will feel slow.
	Appreciate 0

04-27-2016, 06:05 PM	#10
Dark_Knight_335 Came to the N55 Darkside 1131 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Haha- LOVE this poll!
	Appreciate 0

04-27-2016, 10:53 PM	#13
Johnny Boost Colonel 325 Rep 2,016 Posts Drives: '21 M850i GC Join Date: May 2013 Location: TBD iTrader: (0)	Stock for stock, the E90 N55 and N54 have nearly identical performance. The newer F30/F32 N55s are much faster than the N54 stock. __________________ WedgePerformance E40 MHD \| Performance Exhaust Mod \| BMS DP \| Vibrant 1790 \| BMS Intake \| VRSF CP \| xHP Stage 3 Michelin PSS \| M3 Control Arms LUX v4 LEDs \| Shadowline Grills \| Lip Spoiler
	Appreciate 0

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search