All COBB Tuning AccessPORT for 135i Discussion Here

[Olivier_TFE]

Originally Posted by 1trip5

does Cobb offer a free trial period?

Very interested, just not certain if it's what I want for everyday use.

I have the JB3 and I'm using the map 3 all the days. It's approximatly the same results that AccessPort stage 1...

Only for tell you that the N54 Engine in "stage1" is very comfortable to ride every day. No more fuel consuption, no problem, no "too violent"... But at the same time, if you want, the engine can give you more power, more enjoy! Very good!

I hope it's almost so good (and better...) with the AccessPort.

So, I think you can install it, for 100% satisfaction!

[Shaggykjb_135I]

Just thought I'd throw my $.02
I just had my AP installed and dyno'd and thought I'd share my experience with them.
The guy's at Austin Cobb are very good at what they do. Robb is very meticulous and treaded my car like a surgeon. Yes, its expensive..yes, its new to the BMW tuning world. But, after the numbers I put down I am convinced Cobb is the best choice for people like me who have a stock daily driver and want more without taking any chances of losing the smoothness of the drive. I won't post numbers, as Robb wanted to review the data and will be posting it soon.

[Shaggykjb_135I]

yes, N54. and its 28-32*f in central texas. Not cold to most,but freakin cold to me.

[COBB Tuning]

Originally Posted by maxnix

I wonder if it looks at the VIN? Only way I could think installation might be aborted.

Originally Posted by mithiral67

Cats and dogs start living together. Its not a good thing.

Originally Posted by Alext

Just out of interest, what happens if someone outside the US tries to install a cobb tune on their overseas model car? Will it come up with that ROM not supported message?

The AccessPORT is able to identify the ROM that is on the ECU, if it does not match a supported ROM, it will not install. Basically it looks for a list of identifiers for a given platform. If those identifiers don't match, the AccessPORT does not install.

If the car is of the same manufacturer there is a good chance an unknown ROM message will occur and it will allow the customer to try to acquire the ECU data (ROM dump).

However, we are concentrating on USDM vehicles at this time. There is no danger of damaging your vehicle by trying to install the AccessPORT on an unsupported vehicle, but we will be unable to add support at this time.

Travis
COBB Tuning

[RX-BMW]

Hmm was planning on winter tires this year, but this is FAR more exciting. I second the food rationing for a month (or 3)

[Ser1es]

Originally Posted by RX-BMW

Hmm was planning on winter tires this year, but this is FAR more exciting. I second the food rationing for a month (or 3)

Hahaha I'm skipping out on the winter tires too. I figured I can get away with it, it's already mid Jan. Cobb in spring! Hopfully stage 2 maps will be out by then....

[Lambobimmer]

Got my accessport today. Weather was pretty bad here today so I did not get a chance to install. I plan on installing on Thursday and will report back my impressions.

I do have a question though.

What is the torque/hp rating on the stock clutch?

[Rob@Cobb]

A little update for 135i guys. There have been some ROM versions where the cruise control stops working when the AP is installed. If the AP is uninstalled the cruise control works again. I am aware of the issue and will have a fix in the next couple of weeks.

Cheers,
Rob

[Rob@Cobb]

Originally Posted by Shaggykjb_135I

Just thought I'd throw my $.02
I just had my AP installed and dyno'd and thought I'd share my experience with them.
The guy's at Austin Cobb are very good at what they do. Robb is very meticulous and treaded my car like a surgeon. Yes, its expensive..yes, its new to the BMW tuning world. But, after the numbers I put down I am convinced Cobb is the best choice for people like me who have a stock daily driver and want more without taking any chances of losing the smoothness of the drive. I won't post numbers, as Robb wanted to review the data and will be posting it soon.

You are more than welcome to post the numbers. I have not had a change to load your curves into our dyno database, yet, but I will!

Glad you are enjoying the AP in your freaky powerful car

Cheers,
Rob

[Gimlet]

Got mine installed today and posted my initial impressions here:
http://www.1addicts.com/forums/showp...&postcount=149

[Ser1es]

Niiiice I cant wait to get mine!

[theboogieman1]

Got mine today and my ROM was unsupported, hoping to hear word soon. Can't wait to try it out.

[Shaggykjb_135I]

I figured I'd post my results from the AP on a stock 135i.
The Dyno run was done with Cobb's Mustang Dyno in the Austin location.
Please keep in mind my car is 100% stock other than the tune.
base numbers were 275hp/ 315tq in real world numbers.

after the tune 316hp/390tq
I have video of reaching 400+tq & 340+hp during the tuning portion with Rob. However, these were the numbers settled on for my stage1. In my opinion this car is amazing a putting down gobbs of tq early on. On the average dyno pull, I gained 100+tq threw lower rpm (2000-2450) Attachment 476723

[thez99]

Numbers look good. Just wondering after reading that other guys testimonial, the DTC..when you press it once and the light comes on, does that mean DTC is OFF or ON? Cant believe im still figuring this out, but Ive been driving most of the time with the light on, pressin it everytime i drive think this turns the DTC OFF and therefore not doing the engine kill thing everytime i hit a tiny bit of skid.

I want DTC when its slippery or snowing, but otherwise I dont want the ECU cutting engine power just for a little bit of tire slip. So whats the real verdict, the OM says pressing the button with the light on means its turned ON, so im confused. I know how to turn off both DSC and DTC but I always keep DSC on since thats with the brakes not engine power.

[blackbim14]

Originally Posted by thez99

Numbers look good. Just wondering after reading that other guys testimonial, the DTC..when you press it once and the light comes on, does that mean DTC is OFF or ON? Cant believe im still figuring this out, but Ive been driving most of the time with the light on, pressin it everytime i drive think this turns the DTC OFF and therefore not doing the engine kill thing everytime i hit a tiny bit of skid.

I want DTC when its slippery or snowing, but otherwise I dont want the ECU cutting engine power just for a little bit of tire slip. So whats the real verdict, the OM says pressing the button with the light on means its turned ON, so im confused. I know how to turn off both DSC and DTC but I always keep DSC on since thats with the brakes not engine power.

from what I understand DSC is on automatically. when you push the button once it activates DTC (traction control) which allows more wheel spin before acting and will not cause changes in engine power. if you hold it in for 3 or 5 seconds then both are off and the only thing left is the electronic LSD.

hope that helps and is correct. anyone?

[Lambobimmer]

Originally Posted by blackbim14

from what I understand DSC is on automatically. when you push the button once it activates DTC (traction control) which allows more wheel spin before acting and will not cause changes in engine power. if you hold it in for 3 or 5 seconds then both are off and the only thing left is the electronic LSD.

hope that helps and is correct. anyone?

That is correct.

[hwelvaar]

Originally Posted by lamboworld

That is correct.

Almost.
When you short-press the button, it de-activates traction control and DSC is set to intervene somewhat later than default (allow some rear-end slide, but no oversteer).
How else would you be able to spin the wheels, if traction CONTROL is ON ?

[JHOOPS2]

Because we have an open diff, if one wheel starts to spin, then all of the power is going to be routed to that wheel. The E-LSD will apply braking to that wheel and try to equalize things enough so that you have the same amount of power making it to the ground from both wheels. In a nut shell.

[cadeucsb]

Originally Posted by thez99

Numbers look good. Just wondering after reading that other guys testimonial, the DTC..when you press it once and the light comes on, does that mean DTC is OFF or ON? Cant believe im still figuring this out, but Ive been driving most of the time with the light on, pressin it everytime i drive think this turns the DTC OFF and therefore not doing the engine kill thing everytime i hit a tiny bit of skid.

I want DTC when its slippery or snowing, but otherwise I dont want the ECU cutting engine power just for a little bit of tire slip. So whats the real verdict, the OM says pressing the button with the light on means its turned ON, so im confused. I know how to turn off both DSC and DTC but I always keep DSC on since thats with the brakes not engine power.

youre doing it right.

[shemeld_135]

Originally Posted by MB135i

Can we get a group buy????

+1

[badluckm3]

COBB,

Can you go into detail a little more about your "e-tuning"? When this service will be available for the n54 platform, required data for best results, turnaround time, cost, etc.?

[JHOOPS2]

Originally Posted by maxnix

That is not LSD!

I know that.