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Old 09-02-2011, 01:16 AM   #1
saintrex2011
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Default no dyno or protune with cobb stages??

A friend of mine has an 06 sti and for 5 years he has kept this car at cobb stage 2. He has a cobb 3" dp with high flow cat and invidia catback. He kept intake stock and uses 93 octane ALWAYS, and changes oil at every 4K.

to the point.... He has NEVER had his car on a dyno or protuned or anything. No datalogs or checking of boost levels, nothing. His car still runs great with no problems at 80,000 miles.

I'm really hoping I can do the same, just keep things simple with a cobb stage 1 or 2 tune, stock intake , sunoco 93 and redline oil. On the later models like my 11' wrx, do you think I can get away with never checking my power/parameters on a dyno and never needing a protune?
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Old 09-02-2011, 09:41 PM   #2
fl4tpower
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Hahaha. Lucky friend you got there!! Regular maintenance can make a huge difference in how the car performs whether you're a 600hp car or a 200hp car. Obviously 600hp cars work the motor much harder but that doesn't mean it shouldn't last less than the 200hp car. That being said, I ran a 400hp boosted prelude from 45k to 110k with no issues what so ever on the block. Stock internals mind you. I regularly changed the oil and cleaned the CAI filter regularly and just really drove the car with care and sometimes would get all 400hp going. Your ride can easily go without a protune as long as you maintain the car to the utmost and do research as to what you are running mod wise. i.e. Don't be a clown with bolt on's and a power whore. That being said as well, a no kidding tune on your car with the mods you want/need for the purpose your trying to make the car makes too much sense. Why wouldn't you spend the money for a car that you want to last a while and keep her running at peak performance and just being a smooth fun car to drive? The bottom line would be do mod research, build for a purpose, get a tune for your cars performance efficiency, maintain her, and drive with care and you'll have the longevity in your car that you want. : )
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Old 09-02-2011, 09:44 PM   #3
Psychoreo
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Quote:
Originally Posted by saintrex2011 View Post
A friend of mine has an 06 sti and for 5 years he has kept this car at cobb stage 2. He has a cobb 3" dp with high flow cat and invidia catback. He kept intake stock and uses 93 octane ALWAYS, and changes oil at every 4K.

to the point.... He has NEVER had his car on a dyno or protuned or anything. No datalogs or checking of boost levels, nothing. His car still runs great with no problems at 80,000 miles.

I'm really hoping I can do the same, just keep things simple with a cobb stage 1 or 2 tune, stock intake , sunoco 93 and redline oil. On the later models like my 11' wrx, do you think I can get away with never checking my power/parameters on a dyno and never needing a protune?
If you follow the map notes and stick with ONLY the modifications it says, an accessport can last quite some time.

<---214k miles, the vast majority of that COBB stg2
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Old 09-03-2011, 04:05 PM   #4
saintrex2011
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well yes, thats what I want to do.... stick by the books stage 2 and maybe check the advance multiplier ???? did I get that right?? apparently a number of 1.0 is good....
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Old 09-04-2011, 01:20 PM   #5
ArSoN9
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well the AP ots maps use pretty conservative parameters so the reliability shouldnt come into question. The AP uses the same learning functions as the stock ecu. It just brings in more boost on the lower end of the power curve unlike stock which uses the turbo as a surge of power later in the curve. Thats where the increases in hp and tq come from.

And yes you should check your DAM (1.0 is happy engine with no knock detected) and other knock and feedback parameters the AP offers. How much trouble is installing the AP manager and taking a couple datalogs every few months to make sure all is well with the engine.
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Old 09-04-2011, 02:02 PM   #6
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I have an 11 STI and I am running stage 1 stock , I had to pull 1.4 degrees of timing in the high end because of some slight knock learn, I just had it pro tuned last week and I can't feel a difference. On my 07 STI I ran that with a stage 2 map and down pipe and never had it tuned and had 60k on it and never had it tuned and never had a problem.
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Old 09-04-2011, 10:57 PM   #7
saintrex2011
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Originally Posted by ArSoN9 View Post
well the AP ots maps use pretty conservative parameters so the reliability shouldnt come into question. The AP uses the same learning functions as the stock ecu. It just brings in more boost on the lower end of the power curve unlike stock which uses the turbo as a surge of power later in the curve. Thats where the increases in hp and tq come from.

And yes you should check your DAM (1.0 is happy engine with no knock detected) and other knock and feedback parameters the AP offers. How much trouble is installing the AP manager and taking a couple datalogs every few months to make sure all is well with the engine.
can you check your ecu DAM by just plugging accessport in and powering up while car is sitting there in your garage or do you have to do WOT run and check right after an actual run.

because for example, I drove my car last on tuesday, went into garage on friday and powered up my accessport by turning power on and scrolling to parameters. i discovered a DAM rating of 1.0.......... is this valid?
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Old 09-04-2011, 11:19 PM   #8
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Quote:
Originally Posted by saintrex2011

can you check your ecu DAM by just plugging accessport in and powering up while car is sitting there in your garage or do you have to do WOT run and check right after an actual run.

because for example, I drove my car last on tuesday, went into garage on friday and powered up my accessport by turning power on and scrolling to parameters. i discovered a DAM rating of 1.0.......... is this valid?
Yes. The engine doesnt have to see wot because its learned that it can apply 100% of the timing advance and use FBKC and FLKC to pull timing if theres a knock event.

DAM is basically the ECU's rough correction for knock. If it ever drops below 1.0 after its ramped up to that figure, then there is some serious problems going on with the engine.
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Old 09-04-2011, 11:48 PM   #9
saintrex2011
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Originally Posted by 2Fast4U1DAY View Post
Yes. The engine doesnt have to see wot because its learned that it can apply 100% of the timing advance and use FBKC and FLKC to pull timing if theres a knock event.

DAM is basically the ECU's rough correction for knock. If it ever drops below 1.0 after its ramped up to that figure, then there is some serious problems going on with the engine.
thank you!! ya know I have confidence in Cobb, I really do. and it feels good to be at 1.0.....

I guess I want to stay at stage 2 because of the option of flashing back to stock just in case, where with a protune there is no going back!!
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Old 09-05-2011, 10:13 AM   #10
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Originally Posted by saintrex2011 View Post
thank you!! ya know I have confidence in Cobb, I really do. and it feels good to be at 1.0.....

I guess I want to stay at stage 2 because of the option of flashing back to stock just in case, where with a protune there is no going back!!
With the AccessPORT, a protune is just another map that you can choose to use. You are not forced to do so, however. You could switch to any other map at any time. The only time when this would be difficult to do is if you have a major change to the car (such as injectors or aftermarket intake) that is protuned for but is not compatible with our Cobb OTS maps or the stock map.

Bill
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Old 10-14-2011, 05:12 PM   #11
kenflo
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Bill, I was wondering, I was looking at installing a Perrin stage 2 kit (turbo bak exhaust, high flow air filter, and Cobb accessport with stage 2 map). I also saw a set of deutchworks injectors that claimed to be compatible with accessport that I wanted to install with a Perrin top feed fuel rail kit. Was wondering if you had any insight... I see that you mentioned that new injectors can complicate the return to a stock map...
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Old 10-14-2011, 05:35 PM   #12
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Bill, I was wondering, I was looking at installing a Perrin stage 2 kit (turbo bak exhaust, high flow air filter, and Cobb accessport with stage 2 map). I also saw a set of deutchworks injectors that claimed to be compatible with accessport that I wanted to install with a Perrin top feed fuel rail kit. Was wondering if you had any insight... I see that you mentioned that new injectors can complicate the return to a stock map...
We do have some stage 3 maps for older cars (primarily 02-05 WRX) that do support specific aftermarket injectors, but not for the later models. That might be what they are talking about.

Any new injectors for most of the cars we support will require a custom tune. There is no need to go with new injectors with stage 2 mods unless you were going with E85, which would require a custom tune in of itself anyway.

Hope that helps.

Bill
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