Initial Dyno of Cobb Accessport Tune for the BMW N54

Published on 01-08-2011 02:11 AM

73 Comments

Here we have an initial dyno of the Cobb Accessport on the N54. The car used is a 135i 6-speed. The dyno is on 93 octane pushing around 15 psi of boost. No boost graph or AFR is included which we would like but we will take what they give us. The result for 93 octane pump gas only certainly is not bad but some, including BMS, are expressing concerns about the boost being pushed. This tune compares favorably with the Giac Stage 1. More details below:

Yes you are correct 93 oct

The 135i used was a manual 6speed, and the numbers are DynoJet

No sir, the car is bone stock with 40k miles on it. Never been modified.

Thanks for the questions guys.

~Cicio

I just talked to Doug about it. He said it ramps to 15psi then tapers on the top end to 12.5ish.

~Cicio

Attached Files

CobbBMWSTD..jpg (328.8 KB, 686 views)

_{This article was originally published in forum thread:

Cobb dyno results
started by
mazdaspeed6} _{View original post}

67 Comments

Sticky - 01-13-2011, 01:10 PM
- Reply
Originally Posted by enrita

yeah but i doubt you can run more than 22psi on stock internals safely without lowering compression , adding fueling and running race gas / meth.

Of course, but this is more just future discussion on how the Cobb could be used for people who have custom built motor setups.

GTR-Dad - 01-22-2011, 08:01 PM
- Reply
My AP arrived and, as I expected, the xi is not yet supported. ECU data is on it's way to Cobb.
Gary,
Any guesses for when xi support will be released?
Thx,
Dan

Originally Posted by COBB Tuning

Dan,

The AccessPORT should install on your Canadian model without issue. We are nearly complete with our XI testing and should be announcing XI support very soon.

Thanks,

Gary

Sticky - 01-22-2011, 08:20 PM
- Reply
Originally Posted by GTR-Dad

My AP arrived and, as I expected, the xi is not yet supported

We just saw a vid of an xi accessport car running so how could it not be supported?

BrenM3 - 01-22-2011, 08:38 PM
- Reply
different years/different firmware/ews

GTR-Dad - 01-23-2011, 03:18 PM
- Reply
Originally Posted by BrenM3

different years/different firmware/ews

Could be... Mine's a 2009.
The AP readout said it was identifying vehicle, then said it wasn't supported, and then offered to record ECU data.
Dan

alpinedevil335 - 01-23-2011, 05:51 PM
- Reply
How does this tune read performance numbers?
Does it have built in GPS? Accelerometers? How acurate is the data it puts out?

Sticky - 01-23-2011, 09:01 PM
- Reply
Originally Posted by GTR-Dad

Could be... Mine's a 2009.
The AP readout said it was identifying vehicle, then said it wasn't supported, and then offered to record ECU data.
Dan

That's weird, so which year xi's are supported?

Initial Dyno of Cobb Accessport Tune for the BMW N54

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