JB4 Stage 2 N55 Review

**Jameson@Alpine** · 09-03-2011, 09:31 PM

Quote:

Originally Posted by keikdasneak

Car pulls like hell now.

Congrats. Enjoy the extra power!

Lezam · 09-03-2011, 11:13 PM

What are your 0-60 times now?

ian2002525 · 09-04-2011, 12:46 AM

Quote:

Originally Posted by keikdasneak

I would say it compares the the Procede pretty well now but for some reason the top end on the JB4 is just mad fast i don't know why. I am on 14 psi and stock everything. The JB4 also has alot more in dash features than the Procede.

how about acceleration, which one is faster?

Andrew@ET · 09-04-2011, 02:47 AM

Need to race to find out

Slops · 09-04-2011, 07:36 AM

Quote:

Originally Posted by coldasicex5

damnit!!!!! now i want! I WANT I WANT I WANT!!!

just got some nice bonus this month, so I think its mod time

Finally! Juice it up brotha

Slops · 09-04-2011, 08:14 AM

Yeah, wonder what it could be ????

Q4P · 09-04-2011, 11:33 AM

What we need to do is get 2 335i's that are tune only, one with an N54 and the other with an N55 and compare the difference in pulling power. We should get both with Juiceboxes and both with Procedes and do some technical comparisons.

sA x sKy · 09-04-2011, 11:36 AM

Quote:

Originally Posted by Questforpower

What we need to do is get 2 335i's that are tune only, one with an N54 and the other with an N55 and compare the difference in pulling power. We should get both with Juiceboxes and both with Procedes and do some technical comparisons.

Since I have no other supporting mods other than a tune, for about 2-3 weeks, I'll gladly do a dyno. I just need to find one in my area and hope it doesn't cost a lot to do it though..

Q4P · 09-04-2011, 11:37 AM

Quote:

Originally Posted by sA x sKy

Since I have no other supporting mods other than a tune, for about 2-3 weeks, I'll gladly do a dyno. I just need to find one in my area and hope it doesn't cost a lot to do it though..

Well a dyno will only tell half the story, we need 2 tune only cars with identical transmissions and we need to do like 40-120 pulls with them to compare.

htoudiee · 09-04-2011, 11:47 AM

Quote:

Originally Posted by Questforpower

Well a dyno will only tell half the story, we need 2 tune only cars with identical transmissions and we need to do like 40-120 pulls with them to compare.

Does the S2 jb for n55 promise the same power level as it does with n54?

CitrusgutsIS · 09-04-2011, 11:47 AM

will i ever see this for my f10 535 i have the stage 1 jb3????

Q4P · 09-04-2011, 11:53 AM

Quote:

Originally Posted by htoudiee

Does the S2 jb for n55 promise the same power level as it does with n54?

They are off by like 15-20 hp but the N55 appears to be more torquey and and the torque peaks a little lower so I want to see some real life comparo runs.

Rafstar · 09-04-2011, 02:17 PM

Quote:

Originally Posted by Questforpower

What we need to do is get 2 335i's that are tune only, one with an N54 and the other with an N55 and compare the difference in pulling power. We should get both with Juiceboxes and both with Procedes and do some technical comparisons.

Iv'e done the test already. My friend has a n54 with jb4 + intake vs my car which is xdrive +n55 + procede v5 + downpipes. On a 2nd gear pull it's fairly equal but once we get in 3rd gear he has about half a car in front. Bare in mind he doesn't have downpipes. N54 pulls harder than n55 period!!!
I'm curious to see the results if I get the jb4 for n55 and do another comparision with my friend.

Q4P · 09-04-2011, 02:24 PM

Quote:

Originally Posted by Rafstar

Iv'e done the test already. My friend has a n54 with jb4 + intake vs my car which is xdrive +n55 + procede v5 + downpipes. On a 2nd gear pull it's fairly equal but once we get in 3rd gear he has about half a car in front. Bare in mind he doesn't have downpipes. N54 pulls harder than n55 period!!!
I'm curious to see the results if I get the jb4 for n55 and do another comparision with my friend.

Dude if you have an x-drive and he has the rwd that automatically throws your results off lol. You have much higher drivetrain loss than he does and you have much less rolling race power. Plus you are much heavier.

We need two identical cars - both sedans, both rearwheel drive and both with identical transmissions, one with an N54 and one with an N55, this needs to be isolated to only one variable and that is engine.

Keik E92 M3 · 09-04-2011, 02:30 PM

I just noticed i have been running 12 psi only. lol I haven't moved pass map 1 yet. I am going to test 14-15 psi out later.

Keik E92 M3 · 09-04-2011, 02:31 PM

Quote:

Originally Posted by Questforpower

Dude if you have an x-drive and he has the rwd that automatically throws your results off lol. You have much higher drivetrain loss than he does and you have much less rolling race power. Plus you are much heavier.

We need two identical cars - both sedans, both rearwheel drive and both with identical transmissions, one with an N54 and one with an N55, this needs to be isolated to only one variable and that is engine.

+1

If there are any n54 cars with procede or JB4 that want to do a comparison i am down and ready lol...

theriz · 09-04-2011, 02:37 PM

woot nice!!!

fastest 335 right now has a JB! jb FTMFW!

Q4P · 09-04-2011, 02:46 PM

Quote:

Originally Posted by keikdasneak

+1

If there are any n54 cars with procede or JB4 that want to do a comparison i am down and ready lol...

Well I am lol, just drive down to Florida! haha

Keik E92 M3 · 09-04-2011, 02:47 PM

Quote:

Originally Posted by Questforpower

Well I am lol, just drive down to Florida! haha

LOL

eyim1988 · 09-04-2011, 02:54 PM

Quote:

Originally Posted by Questforpower

Dude if you have an x-drive and he has the rwd that automatically throws your results off lol. You have much higher drivetrain loss than he does and you have much less rolling race power. Plus you are much heavier.

We need two identical cars - both sedans, both rearwheel drive and both with identical transmissions, one with an N54 and one with an N55, this needs to be isolated to only one variable and that is engine.

yea thats true. In another comparison though, i raced my friends 2011 335is with a front mount intercooler and dci when i was stage 1 jb3 with only intake and it was pretty similar, his maybe a smudge quicker esp from a dig. From a 60- 100 + run. it was very similar.

Mike@N54Tuning.com · 09-04-2011, 04:00 PM

Quote:

Originally Posted by Questforpower

What we need to do is get 2 335i's that are tune only, one with an N54 and the other with an N55 and compare the difference in pulling power. We should get both with Juiceboxes and both with Procedes and do some technical comparisons.

The N55 135i w/ DCT is pretty competitive with an N54 steptronic. BMS has run 12.4s on it with just Stage1 on one. The N55 steptronic seems to run slower for some reason. Overall I think a tuned N55 DCT has a chance against a tuned N54 steptronic but I wouldn't bet on it.

Mike

Q4P · 09-04-2011, 04:08 PM

Quote:

Originally Posted by Mike@N54Tuning.com

The N55 135i w/ DCT is pretty competitive with an N54 steptronic. BMS has run 12.4s on it with just Stage1 on one. The N55 steptronic seems to run slower for some reason. Overall I think a tuned N55 DCT has a chance against a tuned N54 steptronic but I wouldn't bet on it.

Mike

This is an unfair comparison Mike. I want to compare engines solely... You are comparing a lightning quick DCT tranny to a pretty quick Auto. We need to get stick to stick or auto vs auto. DCT has to be completely taken out of the equation as there is no N54 DCT 335 in the USA and there is no N55 135 Step in the USA.

09-04-2011, 11:33 AM	#29
Q4P Colonel Drives: Too Much Join Date: Apr 2011 Location: World Posts: 2,296 iTrader: (0)	What we need to do is get 2 335i's that are tune only, one with an N54 and the other with an N55 and compare the difference in pulling power. We should get both with Juiceboxes and both with Procedes and do some technical comparisons. __________________ 2jZ + RB26 + 4G63 + LS9 + N54 =
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09-04-2011, 11:47 AM	#33
CitrusgutsIS waste of space Drives: 2012 750 M-sport Join Date: Mar 2011 Location: brooklyn,NY Posts: 89 iTrader: (0)	will i ever see this for my f10 535 i have the stage 1 jb3???? __________________ 2011 535 M-sport l xdrive l adaptive drive l BSM l Dakota 2011 335 is l DCT l BSM l saddle brown l Everything else l Sold 2011 x5 35 l AW l red interior l everything else l
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09-03-2011, 11:13 PM	#24
Lezam Chillerrrr Drives: 2011 335xi sedan Join Date: Jun 2010 Location: NYC Posts: 229 iTrader: (1)	What are your 0-60 times now?
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09-04-2011, 02:47 AM	#26
Andrew@ET Brigadier General Drives: Red thing Join Date: May 2007 Location: Earth Posts: 4,041 iTrader: (9)	Need to race to find out
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09-04-2011, 08:14 AM	#28
Slops Major General Drives: 2005 C55 AMG Join Date: Jan 2011 Location: Oxford Posts: 5,296 iTrader: (2)	Yeah, wonder what it could be ????
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09-04-2011, 02:30 PM	#37
Keik E92 M3 Banned Drives: BMW M3 DCT Join Date: Jan 2010 Location: SoCal Posts: 1,349 iTrader: (6) Garage List 2009 BMW [4.50] 2011 BMW 335i [3.40]	I just noticed i have been running 12 psi only. lol I haven't moved pass map 1 yet. I am going to test 14-15 psi out later.
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09-04-2011, 02:37 PM	#39
theriz Colonel Drives: 335i Join Date: Feb 2011 Location: Ventura County, CA Posts: 2,865 iTrader: (0) Garage List 2011 335i M-Sport [2.00] 2009 X5 [5.00]	woot nice!!! fastest 335 right now has a JB! jb FTMFW!
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