[Delnari]

Finally was able to get the car on the dyno this morning. The baseline was performed with the aFe Intake installed as I didn't want to waste time/money putting the stock intake on and off. The car delivered good numbers with just the intake alone. Looks like the torque numbers were higher than expected. My tuner said the 295.57 HP and 330.75 Torque is the highest stock numbers he has seen on his dyno for any stock N55 motor. That tells me we are getting a bit more power than BMW is letting on

With the N55 Stage 1 installed we see gains in both HP and Torque, but to be honest not what I was expecting from the BMS suggested gains posted on the website. The best was 323.15 HP and 365.67 Torque. A peak gain of +27.58 HP and +34.92 Torque. That said, for less than $400 and two easy connections to insert it still is a good deal for this car. I hope the JB4 Stage 2 running Map 1 puts out better number with the added controls.

[hyperzulu]

What does the butt dyno say in terms of response?

[JustinCredibleM]

Great numbers and I hope you are happy with the car! It seems very consistent and inline with what BMS states on their site without exhaust. Hopefully we can compare when I get mine strapped on the rollers.

[h0pe]

those are very impressive numbers, and thats a baseline with an intake.

[kerm1t]

nice numbers, but definitely hoped for a bit more. Maybe its because its still stage 1.

Originally Posted by JustinCredibleM

Great numbers and I hope you are happy with the car! It seems very consistent and inline with what BMS states on their site without exhaust. Hopefully we can compare when I get mine strapped on the rollers.

you seem like you had a lil better baseline dyno. i know all cars will be different, but i hope mines near yours :P

[JustinCredibleM]

Don't forget all dynos are different too .

[alexc93]

They have stage 2 available already I believe...

[JustinCredibleM]

Originally Posted by alexc93

They have stage 2 available already I believe...

For EWG cars?

[kerm1t]

Originally Posted by alexc93

They have stage 2 available already I believe...

yea i have jb4 stg2 as well. waiting for my damn car to get here

[JustinCredibleM]

I have the Stage 2 as well, but we can't use Map 2 until we get the EWG harness though.

[Delnari]

Originally Posted by JustinCredibleM

Don't forget all dynos are different too .

Yes, really can't compare my baseline to yours, apples and oranges. But they are in the same ballpark. Both higher stock numbers than expected.

[Mike@N54Tuning.com]

Those are great gains for the Stage1! And down the road when you're ready for more power you can upgrade it to the JB4 Stage2.

Mike

[Da_Meister_22]

Good numbers...really looking into getting an M235i .....

[rickinaz]

But...doesn't the M235i come with MPPK, which is a quasi-JB4 Map1 anyway? I'm surprised that there is ANY gain at all.

[bimmer Don]

If it's a 15% drivetrain loss it looks like m235i makes 340 hp and 380 tq so is say it safe to say it's under claimed like all n54 and n55 are

[rwalker]

Originally Posted by rickinaz

But...doesn't the M235i come with MPPK, which is a quasi-JB4 Map1 anyway? I'm surprised that there is ANY gain at all.

MPPK gets you about half of what JB4 map1 gets you over non-MPPK. JB4 map1 gets you the other half.

[HX_Guy]

Is the JB4 completely plug and play? No cutting or splicing? Is there any trace at all left behind when you remove it? Can dealerships tell in anyway that you had it...like maps history or something?

I know with VW/Audi chips, the dealerships could see it and could tag your car and not honor the warranty in certain situations.

[FunRevn]

Originally Posted by HX_Guy

Is the JB4 completely plug and play? No cutting or splicing? Is there any trace at all left behind when you remove it? Can dealerships tell in anyway that you had it...like maps history or something?

I know with VW/Audi chips, the dealerships could see it and could tag your car and not honor the warranty in certain situations.

+1

[TunedM2C]

Originally Posted by HX_Guy

Is the JB4 completely plug and play? No cutting or splicing? Is there any trace at all left behind when you remove it? Can dealerships tell in anyway that you had it...like maps history or something?

I know with VW/Audi chips, the dealerships could see it and could tag your car and not honor the warranty in certain situations.

Plug and play and as long as you view and/or delete codes before taking it into the dealership, they won't know it was modded. Just be sure you remove the JB4 prior to any service.

[Delnari]

My N55 Stage 1 for the N55 engine has a total of 2 connections. Both of which are factory style harness connectors that plug inline with the vehicle harnesses. There is no cutting or splicing of wires! No codes are present in the OBDII connection that I can read with my scanner. Return my vehicle back to stock is a simple matter of unplugging the 2 connections and plugging the factory connectors. It can swap in/out on the M235i is less than 5 minutes. This the reason I went with the Stage 1 setup instead of Stage 2 or more at this time.

For me this is a stop gap measure until the Dinan software is made available. I will sell my N55 Stage 1 for 1/2 the original cost here or EBAY once I get the new software for Dinan installed. The N55 Stage 1 is very small money for nice gains and you can add the 2nd module from Burger for under $200 to go additional stages.

[alz0rz]

So the JB4 Stage 2 requires additional connections?

[phoenixbmwlife]

I want to see a dyno with the JB4 and CAI.