patrick.perez2

Im wondering if anyone has a map for the cobb ap that is close to my mods.

Currently have -
header back exhaust
ingen intake
ap pulley

New to the cobb and if anyone has any suggestions on how to tune it it would be appreciated


Mod Edit: Changed Title
RX8Club User Conduct Rules

Brettus

iTrader: (2)

It doesn't work that way .

Where did you buy your AP ?

Juansito

iTrader: (5)

You need to have a custom map made for your car.

Every car is different and using someone elses map will make your car run like crap.

bse50

check out www.mazdamaniac.com

patrick.perez2

I will have my ap in the mail this week. Didn't want to spend $200 or so with mazdamaniac when I could do it myself. what is the best way to start doing a street or track tune?

bse50

To tune it yourself is not an easy task.
Hours of study, comprehension of our system and deep understanding of the dozens of maps that you need to deal with to properly tune the car. Practical experience is a must, too.
There's no such thing as a street and\or a track tune, either.
Unless you're working for 2$ an hour i don't know how you could tune the car yourself any cheaper than what MM asks, seriously. It will take you at least 100 hrs of study and testing plus up to 10hrs to build your first acceptable tune. Factor in the dyno time if you please as well if you please.
Most tuners ask 5\700$ to properly make a custom tune for a reason. Jeff aka Mazdamaniac chose a while back to support cheap tools like you a while ago.
It's no longer the realm of "adjust the timing and set the fuelling", i'm sorry. Our pcm deals with 3d and 4d "maps", a royal pain if you don't know what you're doing.
Most of the maps don't even really affect what they're supposed to, how long will it take you to figure what to change to obtain the desired results? and oh, what are the desired results... do you know them? Like timing vs load adjustments, λ to shoot for etc...

If you have to ask then it's not a wise idea to do it yourself! Maybe asking for advice on how to deal with a couple of specifi maps but a complete tune... oh lord! 200$ is a hell of a price already, don't be a cheap ghetto ricer and spend them!
The other option would be joining one of his webseminaries... probably only to understand even better why you should have someone else tune the car for you.

laythor

as has been said by bse50, the time to learn vs cost of a MM map makes it hard to justify the DIY approach. Now, if the 8 isn't your daily driver and you like to do things yourself, there is no reason you can't learn to "tune" your car with the AP.

People look at tuning as some form of witchcraft (it isnt) and think it's impossible to learn how to do it yourself (it isnt).

Make sure to do your research (hint: there's more then a few threads here and on other forums on how to tune with the cobb ap), read up and get a basic understanding of how to use it, then start asking questions if you have any. From experience I've learned that if you asked a well though out question that has not been asked 100 times already you'll actually get knowledgeable help from people.

Keep in mind you're looking at a significant amount of time on your part to get to the point where you can safely change more then the simplest of parameters on your ecu. The AP is a powerful tool and using it incorrectly can do a lot more harm then good.

patrick.perez2

Thanks for all the info. Didn't realize making custom maps are so difficult for the 8s. I have read alot about it and do see that you can easily mess up your ecu if your not careful.

How is the result from using the mazdamaniac custom tune? Is it well worth the money? Anyone happen to have some hp/tq increases and fuel eco change?

RX8Soldier

iTrader: (24)

worth it? Some say yes. Others, no. Search for cobb accessport discussions to get a better understanding of it.

And if you ask about hp/tq increases, chances are you understand less of the RENESIS engine than you thought, and therefore should not attempt to tune yourself until you research a lot further into the engine...

TeamRX8

iTrader: (25)

A normally aspirated Renesis is pretty hard to blow up. You can even run it WOT at 14.7 AFR on good fuel without any real issue other than over time it will eventually overheat the side seals to the point that they lose compression. Detonation and overheating are about the only thing that will take out a NA engine quickly ...

bse50

A stoich lambda will kill a track driven engine pretty quick though and the OP was asking about "track" maps as well...
Even at 13.7\13.8 the heat wears the damn thing off pretty quick and lowering that target provides a great reliability increase vs a negligible loss of power (if any at all).
I know you know that stuff Team, it's just a random consideration that may help the OP.

TeamRX8

iTrader: (25)

The point is that working through basic tuning isn't likely to result in a blown engine for an NA application. You only need to make a data log run each in both 2nd and 3rd gear from low rpm to redline. Starting from the factory map is pig rich. If you go too lean at some point it shouldn't cause any extended harm as long as you correct for it in subsequent data log runs.

laythor

and there are flags in the parameters that say "this is basic tuning"? I don't pretend to be any good at tuning but can think of three parameters off the top of my head that could lead to the engine's life being greatly shortened.

the point a few of us are making is that yes, you can tune yourself. But since the OP was asking for someone to hand him a map that would work in his first post I'm thinking that isnt the best way to go here.

TeamRX8

iTrader: (25)

I didn't suggest that he tune it himself. Rather, I merely addressed your previous comment about doing more harm than good. There are some people who can do more harm than good just checking their oil level. That said, IMO a more accurate description would be that he is more likely to stumble around and not accomplish anything meaningful.