Cobb AccessPort for 370Z!
 

It seems that you can order it already, but no base maps are out yet...

CobbTuning.com - '09 370Z AccessPORT

we hope to have some maps developed soon, have been tuning our 370Z and have some others in the area we will be bringing in with various mods.

Awesome!! i have my AP from my EvoX which im gonna send back to them to reprogram for the Z :) this is very good news :p

Not to be a d*ck, but did you not see the 3 threads on cobb at the top of this section.

OMG OMG OMG OMG OMG you are so mean! You meanie! why would you do that to this poor fellar. Always flaming everyone! boo hoo im gonna give you bad rep!

(I was thinking the same thing, but didnt say anything for the overly sensitive folks to jump at my neck)


AP was released last friday.

I just got mine last night. I like the A/F, and data logging.
Still learning how to use it. I bought it from GTM.
Once I send Sam the data he will be helping we a custom tune for my 370.
Stillen CBE. gen 3 intake, Berk cats. headers and crank pulley.
On the intake it was a cool humid day 100% humidity 70 degrees and the intake temp at idle was 85. Once i opened it up on the high way it dropped to 75 degrees.

Yeah....I just got my as well. I've been playing around with the Data Logging and Live Data features. I really like the AccessPort, it's a lot of fun and very useful even without the base maps. I'm going to try the Dyno feature out later today.

One thing I'm datalogging is ambient temperature (which I record myself) vs. air intake temperature, RPM, load, and vehicle speed. I'm doing this so when I do eventually switch to an aftermarket intake, I can see if the air intake temperatures actually went up or not under real world driving conditions.

I am going to have GTM tune my 370 as soon as my cat-back and HF cats get installed.

My air intake temps was 76. The outside was around 71 degrees.
At idle it was around 88 degrees. This is with the stillen G3.
When you see Sam he can show you my base line dyno. and the dyno with the stillen intake.
265.7 stock
285.6 stillen

Im still learning all the features.

I bought my AP yesterday at Cobb Tuning in Plano, since my ECU was one they havent encountered yet, I'm getting tuned for free on the dyno

Wait, let me get this straight. They've released the AP for the 370Z, but you're getting your dyno tune for free because they haven't encountered a 370Z ECU yet? What's wrong with this picture? How on earth did they develop the AP for the 370Z without encountering a 370Z ECU? I've been trying to decide between going ahead with Cobb vs. holding out for UpRev. I think I just finalized my decision.

there many versions of the ECU, and if they have not seen that version they just need to get a dump of the ECU so the can update their database to include it, we still run into that some times with the Osiris on the 350Z

:iagree:

If I am not mistaken, I believe they are categorized by build date in specific groups... this is common on bmw, mbenz and a variety of european cars as well.

Thanks for the clarification guys!

no problem, they should both be good systems to tune with, we have been using Osiris since it came out about 7-8 months ago for the 350Z/G35 and love it, have used it to tune NA and turbo Z's/G's so we can't wait for it to come out for the 370Z

The Cobb just came out and we have been playing with it and giving Cobb feedback on some things we think should be added to the software so we will see how this platform evolves we love it for the EVO's and Suby's, we will be using it soon to tune a 370Z we are installing Twin Turbos on.

yup, they hadnt encountered my ECU yet. should get a call today about when to come in.

since they do not really have any maps out for the 370z, is this access port fully tunable to do manually? like can i take my car to a dyno tune shop and since they are professinals would they be able to manually tune my car through this cobb access port? we need this because the stock ecu on this car isnt manually tunable right?

yes, you can take it to a Cobb tuner and have it tuned

Does the ap by chance come w/ a 2-step function?

Guys, how much of a gain could you honestly expect with just tuning? I currently have the Cobb AP for my 2005 Legacy GT and it did wonders but that was for a turbo vehicle.

Not that I am aware of, that is something usually used for turbo cars to build boost at the line

It all depends on where you are at to begin with, we have seen some Z's running lean and some rich, so of course if you are rich there is room to make some power plus timing, you can also sharpen the throttle response and raise the rev limiter. From Osiris experience with the 350Z we typically see about 10 RWHP increase and improved response.

does it have to be a Cobb tuner? cant it just be a very good professinal tuner thats not a Cobb tuner? not too sure that theres any Cobb tuners in the chicago area.

well if you download the software you can go to any tuner, they may need to play with it to get used it, it is not straight forward as other tuning software, but a good tuner will figure it out, just need to read the manual and understand what the numbers do.

Where is the COBB Tuning map ??

they are bit slow at getting this out.

I suspect there is not much left to play with in this engine with a few bolt on's, hence they slow boat to china effect.

If you buy an accessport you can download the tuner race software which is the same Cobb tuners get just tied to the one accessport, with this you can access the maps and tune the car.

from your experience so far in tuning the 370z, would u say buying this access port is worth it with a stillen g3 intake system and a fast intentions catback exhaust with high flow cats? how much more whp would i see if brought to a good tuning shop with this access port and these mods? its a price vs. benifit thing for me, would you say its worth it with just those mods? thanks.

Well....now I am lost.

As I mentioned it depends on where you are at now specifically air fuel ratio wise, this will tell how much you can gain, on average I would expect on 10 or so, the best is that you can get more under the curve. If you are not in a hurry you can see what Osiris has to offer, hopefully they will have theirs out soon

Sorry, to get a custom tune on your Z with the Cobb, you have to buy an accessport to get the license to tune your ECU, then you can either download the racer software and take it to a tuner or tune yourself, or if you have access to a local Cobb tuner they may have the Pro software and tune your ECU.

Hey Gus, how is your AP tune development coming along?

Jack has been waiting on some feedback from Cobb on things he suggested but I think we should get you on the dyno and see what your setup will do, Jack is out of town for 10 days so when he gets back I will talk to him about trying yours

Sounds good. Let me know :)

^^always getting first dibs....im jealous. i need to mod more:tup:

lets say i bring my car in to get dyno tuned through the access port, will i ever have to bring the car in to get retuned? i heard of something called "tune drift", which is where the ecu resets itself back to stock configuration so therefore you lose the tune you got.

no, the tune is burned on the ECU you will not lose it. You will only have to retune if you do some mods

well lets do it :)

tune drift? thats new...

Yeah you know RCZ, sort of like alzheimers of the ecu species. I think I saw a commercial for some kind of pill that helps the ecu cope with it...

:eekdance:

yup, new to me too. i heard it talked about on my sentra ser forum, its pretty common with our cars once you tune with a afc.

well that is a different story. the AFC just does pluses or minuses so it is simply making changes to the stock ECU numbers so if the stock ECU makes changes due to temps for example the AFC doesn't know this so it keeps taking or adding what it originally had programmed which can make things worse but with Cobb or Osiris you actually change the numbers in the ECU.

Have you played around with the VVEL yet?

Ill be nice and clarify your question despite the fact you told me you had a 370 and you wanted to know where to get it tuned in Chicago. You are correct, you heard about "tune drift" but if you read about it you would have learned that it is a correction the stock ecu is trying to make.

The AFC, as in Apexi AFC is a piggyback fuel solution that adapts the stock ecu fuel tables to get your AFR in the target range. Some one named it "tune drift" because they feel the Apexi AFC is tuning the ecu (which it isn't its just modifying the signal.... and it was drifting away from the settings because the two narrow band 02 sensors on the Sentra are so sensitive they adapt the stock ecu fuel delivery to adjust the compensation the Apexi AFC was making to the AFR to get the AFR back to stock parameters. So someone decided to say that their "tune" was "drifting" as in the modification from the Apexi AFC was variable since the stock ecu still had control over the fuel values dependent on the 02 sensor readings.

It is more respectful to read threads to learn about the 370 if you are interested than to post unrelated questions and compare it to a car with almost zero equivalency. I have seen your posts all over the board asking what a exhaust resonator is to how much power you can get from headers and if it makes the car louder.

:shakes head: