[BrianT335i]

Quick question for anyone that has knowledge on this. Might be a noob question but whatever. I just got rid of my 2009 N54 and it was tuned with a Jb4 and I loved it. So obviously when I purchased my N55 a week ago the first thing I looked for was a Jb4 but don't really understand it for N55. There are two options, the N55 stage one or the E series N55 jb4. I have a 2011 and it says both fit my car but the E series adds way more power. So what the hell is the difference? Lol is the stage one kind of like the JB plus but for N55s?
Thanks to anyone that can help!

[Sidewinderpb]

You're looking for the normal JB4, not the Stage 1. If you do go for the Stage 1, you'll likely find yourself upgrading to the normal board soon after. From a quick glance, it does seem that the Stage 1 would be the N55 equivalent of the JB+

[BrianT335i]

Originally Posted by Sidewinderpb

You're looking for the normal JB4, not the Stage 1. If you do go for the Stage 1, you'll likely find yourself upgrading to the normal board soon after. From a quick glance, it does seem that the Stage 1 would be the N55 equivalent of the JB+

Okay perfect that's what I thought! Thanks for the quick response man

[BrianT335i]

For anyone that has the E series Jb4 what gains have you seen from it? Gains close to the N54?

[n55e90]

Originally Posted by BrianT335i

For anyone that has the E series Jb4 what gains have you seen from it? Gains close to the N54?

no lol i only gained about 20whp lol

[jgoens]

Don't know about gains compared to n54--but on my 2011 the gain is substantial with JB4. I don't have dynos or charts but the car is a lot more fun to drive. I wouldn't even consider stage 1.

[BrianT335i]

Originally Posted by n55e90

no lol i only gained about 20whp lol

That's it??: I'll probably still buy it though cause I love BMS! Haha

[BrianT335i]

Originally Posted by jgoens

Don't know about gains compared to n54--but on my 2011 the gain is substantial with JB4. I don't have dynos or charts but the car is a lot more fun to drive. I wouldn't even consider stage 1.

Yeah I'm not even gonna look at stage 1 anymore! Lol

[JETmn]

The problem is the turbo on the N55 is much smaller than the 2 on the N54. If you have E85 you get another nice bump with the flex fuel wires and E35.

[BrianT335i]

Originally Posted by JETmn

The problem is the turbo on the N55 is much smaller than the 2 on the N54. If you have E85 you get another nice bump with the flex fuel wires and E35.

Of course there is no E85 close to me:

[n55e90]

i didn't feel no difference when i put my jb4 on. it only gained about 20whp. but when i put the e85 then it was pulling hard.

[Sidewinderpb]

Originally Posted by n55e90

i didn't feel no difference when i put my jb4 on. it only gained about 20whp. but when i put the e85 then it was pulling hard.

That's doesn't sound right. Map 1 is a night and day difference over stock.

[jgoens]

Originally Posted by n55e90

i didn't feel no difference when i put my jb4 on. it only gained about 20whp. but when i put the e85 then it was pulling hard.

Can't believe you didn't feel a difference. Where did you get the 20whp? Is there a dyno on that?

[BrianT335i]

Originally Posted by Sidewinderpb

That's doesn't sound right. Map 1 is a night and day difference over stock.

What kind of numbers did you put up? If you know!

[n55e90]

Originally Posted by Sidewinderpb

That's doesn't sound right. Map 1 is a night and day difference over stock.

Originally Posted by jgoens

Can't believe you didn't feel a difference. Where did you get the 20whp? Is there a dyno on that?

Originally Posted by BrianT335i

What kind of numbers did you put up? If you know!

i raced a stock 335i and we were neck and neck. switched to map 2 and pulled about 2 almost 3 cars. thats not 60hp like they claim lol

[n55e90]

im loving how it runs on e85 though lol

[BrianT335i]

Originally Posted by n55e90

im loving how it runs on e85 though lol

Must be nice. I'm in the Bay Area and can't find e85

[jgoens]

Originally Posted by BrianT335i

Must be nice. I'm in the Bay Area and can't find e85

The closest to Gilroy is San Jose. There are several stations in the bay area--I go to Redwood city.

[BrianT335i]

Originally Posted by jgoens

The closest to Gilroy is San Jose. There are several stations in the bay area--I go to Redwood city.

I guess I could just fill up those tanks and bring some home then pour in my car?

[Sidewinderpb]

Originally Posted by n55e90

i raced a stock 335i and we were neck and neck. switched to map 2 and pulled about 2 almost 3 cars. thats not 60hp like they claim lol

Map 2 is for a catless downpipe, so that's suggesting additional mods - not just the JB4.

[jgoens]

Originally Posted by BrianT335i

I guess I could just fill up those tanks and bring some home then pour in my car?

There's actually a few guys that do that--get a few gas cans go over to San Jose and you could get yourself a months worth of E85 assuming you use 4 gallons a week or less

[BrianT335i]

Originally Posted by jgoens

There's actually a few guys that do that--get a few gas cans go over to San Jose and you could get yourself a months worth of E85 assuming you use 4 gallons a week or less

I'll just do that then! Of course I gotta get Jb4 before but soon