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Old 02-08-2013, 01:07 PM   #1
kapp_badbloodz
Scooby Newbie
 
Member#: 203327
Join Date: Feb 2009
Location: Mount Holly, NJ
Vehicle:
2002 WRX
Silver

Default intake question regarding provided Cobb maps

Hello,

Was reading in another thread about how to make sure you use the correct map based on what intake you're running. Then I had a question pop up:

What if you're running a custom built 73mm intake off a Perrin inlet? The inlet doesn't quite concern me... if for some reason I dump my AP pro tune and I need to revert to a off-the-shelf map; what would one do?

Probably an unlikely situation... this will be my first AP and will not be running one of the provided maps. Does Cobb provide a map (like the stage (X) map) for cars that are forged built w/larger turbo, injectors, TBE, EWG, pretty much everything bolt on?

Insight is much appreciates

Corey
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Old 02-08-2013, 01:51 PM   #2
Tripintaz
Scooby Specialist
 
Member#: 245218
Join Date: Apr 2010
Chapter/Region: South East
Location: FL
Vehicle:
2013 STI Limited

Default

Quote:
Originally Posted by kapp_badbloodz View Post
Hello,

What if you're running a custom built 73mm intake off a Perrin inlet?

Corey
Then you DEFINITELY should not run an OTS map. If you do you have a high risk of breaking your motor due to running lean. There is no way around this. Get a pro tune, or get ATR and tune the MAF yourself if you have a wideband. Or install an intake that is supported by the COBB OTS Maps.
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Old 02-08-2013, 02:02 PM   #3
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Quote:
Originally Posted by kapp_badbloodz View Post
Hello,

Was reading in another thread about how to make sure you use the correct map based on what intake you're running. Then I had a question pop up:

What if you're running a custom built 73mm intake off a Perrin inlet? The inlet doesn't quite concern me... if for some reason I dump my AP pro tune and I need to revert to a off-the-shelf map; what would one do?

Probably an unlikely situation... this will be my first AP and will not be running one of the provided maps. Does Cobb provide a map (like the stage (X) map) for cars that are forged built w/larger turbo, injectors, TBE, EWG, pretty much everything bolt on?

Insight is much appreciates

Corey
Our off-the-shelf (OTS) are primarily for stage 1 (i.e. stock) and stage 2 (turbo-back exhaust) with stock injectors and stock or Cobb SF intake (additionally AEM intake on GR WRX/STi). You simply do not want to run the OTS maps with different intake and injectors than the map is calibrated for. It would run very poorly (the larger the injectors and the farther off the MAF calibration for the intake, the worse it would run, possibly stalling or not starting in some cases and possibly causing engine damage especially at higher load).

What I would do is have your protuner create a "limp" map of sorts (based off your custom tune) that disables boost control (assuming you are using factory ECU boost control) and has more conservative fuel/timing. That way, you have a map to use in case something mechanically goes wrong and you need to get the car to the shop or if you have someone else driving the car and you don't want them to rag on it (basically like a valet map). You could additionally have a much lower rev limiter if the "valet" consideration was the main purpose.

Bill
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