Making the N55 E90 beat an F30

[corp]

This morning I saw a 135i put foot and thought "damn that is quick" and yesterday I saw a F30 pre-LCI 335i and thought a similar thing.

Now with all the threads I have been reading, it made me wonder this morning what mods it would take to make the N55 E90 be on a equal footing (if not marginally quicker preferably) than an F30 and F30 LCI. We all know those new ZF gearboxes are a big advantage so upping the power seems to be the only route.

I am looking at N55 here over the N54 (probably cause I have one ) as again, we know that N54 can be magic with mods.

What do you peeps reckon it will entail?


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[Clint@MMS AUTO]

Software/JB4 should be enough for an E90 335i to beat an F30 335i but if you still greedy for more, Intake and DownPipes with a stage 2 map will be more lethal.

 

[corp]

I am actually shocked a JB4 alone can do this.

So who has done a JB4 with charge pipe and catless downpipe? What official figures and sprint times are you getting with this? I can't see someone knocking off a whole 1 second off the claimed acceleration times.

I can accept the newer N55 and B58 engines beating me but I hate it when a S3 or Golf R kick my ass too. It is demoralizing. Hahaha




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[" N1KHAR-ZN "]

IMO, downpipe and some good stage 2 software like MHD(Twisted Tuning) will be more than enough for an N55 F30. B58 could be problematic though..

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[zippy320]

Are there any drawbacks from using a JB4 ? Does it decrease the lifespan of an engine ? I mean , your making the engine work a lot harder then what its supposed to rite? Or is everything still within spec ?

 

[Clint@MMS AUTO]

Are there any drawbacks from using a JB4 ? Does it decrease the lifespan of an engine ? I mean , your making the engine work a lot harder then what its supposed to rite? Or is everything still within spec ?

In most cases, forcing the engine to work harder than its use to working will cause extra heat/wear and maybe create additional stress on other working/moving parts... so yes, it will decrease the life of the engine as opposed to a stock motor which is just serviced and maintained.

 

[corp]

I see many people use the JB4 on their daily drivers and are happy regarding reliability. Sure, increased maintenance is a must but overall, i don't see reliability being greatly diminished however this does assume the boost and other mods don't push extreme levels and the car isn't driven constantly as if on a track.

There is a YouTube channel, "BMWFanatic" (without the S) who had an N54 and I think he said in his one video that he is approaching 150k miles on the clock. He uses his 335i as a daily and runs it with a JB4 on map 5.


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[Danny2]

I see many people use the JB4 on their daily drivers and are happy regarding reliability. Sure, increased maintenance is a must but overall, i don't see reliability being greatly diminished however this does assume the boost and other mods don't push extreme levels and the car isn't driven constantly as if on a track.

There is a YouTube channel, "BMWFanatic" (without the S) who had an N54 and I think he said in his one video that he is approaching 150k miles on the clock. He uses his 335i as a daily and runs it with a JB4 on map 5.


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I ran my car on map 5 daily, used ethanol every other week and used map 7.

 

[corp]

For how long did you do this? Experience any differences in reliability or maintenance before and after (assuming you had enough time with the "before")?


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[Danny2]

For how long did you do this? Experience any differences in reliability or maintenance before and after (assuming you had enough time with the "before")?


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I have only had a failure of the plastic charge pipe. Put the metal charge pipe and all was fine.

Then i had a valvetronic issue that BMW repaired.

Thats about it

 

[corp]

Seems about normal. Have long did you drive the car for with the JB4 and charge pipe in?


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[Danny2]

Seems about normal. Have long did you drive the car for with the JB4 and charge pipe in?


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about 1 year and 6 months.. it got removed when the car when in for service or any work etc

 

[corp]

Wise choice when still under warranty or motorplan.


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[Danny2]

Wise choice when still under warranty or motorplan.


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it did go in more than once with mods on :RedNo:

 

[Hubblyking]

My car stays on map 6 need to do a backend flash for better trims.jb4 is boss

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[corp]

That is all gibberish to me.


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