Quickvr4

My friend just purchased an 09 335i 4 door. His car is bone stock except for the ECU tune that quotes 420bhp. This weekend we plan on doing a couple of spirited pulls against eachother. What can I expect? I haven't been able to find any information on this.

My C55:
- Secondary/Res delete
- K&N drop in filters
- Brabus wheels.....unsprung weight
- Eurocharge ECU reflash.

His 335i 4 door:
- ECU piggyback quoted at 420bhp.


What are your thoughts?

60n5pt1

a stock 2009 335i has 300 hp @ 5800. I'm curious what ECU tune added 120 hp just by doing so without extra mods.

Quickvr4

http://www.burgertuning.com/jb4_pnp_...nce_tuner.html

It essentially just ups the boost.

dirtye30

The N54/55 engines are very underrated from the factory...that number is feasible.

MerC55AMG

I'd have to agree with 60n5pt1.... 120 gain with an ecu upgrade? I used to have a Jim wolf chip on my twin turbo Z that supposedly gave it 60hp. I never had access to a dyno though, times have changed I get that...I'm thinking the 420 is a little optimistic. The car is a twin turbo, you would have to crank the boost up double or more to squeeze that kind of power out it without other mods to help it... It wouldn't seem very smart of a chip maker to do that, that's just screaming for problems.

Shifter

Plus must be crank #s? I raced one witha tune only, from a 50 roll and it was no race. Granted with my E55, but I think you will do good, maybe close race get a vid!

dirtye30

here is the dyno of a stock 335i. Accounting for a 15% drivetrain loss, the car has around 320-330 hp crank

togaclk55

You might be fine...lol

MBfinatic

May come down to the driver. There is my old C55 against my Dads 335i 4 door.

macbryanie

Awesome MBfanatic ! Nice runs.

jturkel

the 335i will pull you

60n5pt1

I did not say it was not possible. Just wondering what it took to get to 120 hp.
BTW Correct me if I'm wrong, but, the 335 is a single turbo but with a twin scroll.
GL on your road event..go get 'em

dirtye30

N54 was twin, N55 is single. I can't recall which year they switched over.

emericr

Dinan advertises 100bhp bump with their tune so since the engine is underrated, 420 crank hp is not far fetched. The Beemer will show its tail to the Merc.

C_DirtyTwo

335 will pull, with just a tune (JB4) they are serious. Would probably even pull on my heavily modded c32

Quickvr4

might need to slap on the unit for this...

speed7

Well I'm wondering how much torque the updates gives the 335i. I personally thing its going to be very close. I hope you win but I'm not sure. I think the C55 weights more.. by like 300 lbs. Make sure the person recording sits in his car. =)

Also ditch everything you can in yours and don't tell him... pull all of the crap in the trunk plus the floor mats.. and don't eat anything for a day.. and hit the bathroom before you go out. =)

ddtham

Is his car auto of manual? that will probably be the determining factor.

I've ran against regular 335 and 335is and haven't lost yet, once they are tuned and bpu'ed though, it will be a different story.

Quickvr4

It is automatic 4 door. Not BPU, just chip.

ghiaguy

I'd say you have a solid chance- let us know how it turns out

805C55

I've run a tuned 335 I in my c55 and was pretty much dead even granted we were going up a slight hill

Ultra Stone

I have run a 335i coupe (from 0-speedlimit-ish) both stock and with a Jb4. Stock I had the advantage but with the Jb4 it was a completely different story. Be safe and let us know how it goes.

60n5pt1

My C55:
- Secondary/Res delete
- K&N drop in filters
- Brabus wheels.....unsprung weight
- Eurocharge ECU reflash.

His 335i 4 door:
- ECU piggyback quoted at 420bhp.

What are your hp/torque numbers from the Eurocharge 'reflash' id I may ask.

Quickvr4

I have never put the car on the rollers so I don't know the power.

MBfinatic

When will you race him? Make video when it happens?