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Cobb AccessPORT Discussion

Old Jun 26, 2008 | 03:58 PM
  #3176  
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From: Colfontaine, Belgium
Originally Posted by jackhain
Hey Jeff,

This was almost six days ago....what's going on? You don't like me or something??
lol, hes a busy man.. he wont forget ya, prolly not anyway
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Old Jun 26, 2008 | 04:02 PM
  #3177  
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From: Lake County, Illinois
Originally Posted by paulmasoner
lol, hes a busy man.. he wont forget ya, prolly not anyway
I hope you're right. This is the 3rd or 4th reminder. I asked for a tweaked map at the end of May.
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Old Jun 26, 2008 | 04:32 PM
  #3178  
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From: Sunny See attle
Originally Posted by w0rm
For performance only, your money would be better spent in other areas.
ORLY? What other single mod gains as much power as the AP NA?
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Old Jun 26, 2008 | 06:08 PM
  #3179  
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From: Under my car
I'm don't really understand what is going on in your calibration, Jack.
It just looks like a vacuum leak from here.
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Old Jun 26, 2008 | 06:30 PM
  #3180  
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From: Lake County, Illinois
Originally Posted by MazdaManiac
I'm don't really understand what is going on in your calibration, Jack.
It just looks like a vacuum leak from here.
I don't get it. I've checked all vacuum hoses on the intake portion, and all of them were tight. I'll check again as soon as the engine bay is cool enough to work in.

An another note, a vacuum leak really doesn't explain why the engine goes pig rich (11.1) at around 5,700 rpm and then comes back a little at 7,600rpm...unless the secondary ports aren't opening. A stuck port really shouldn't be the problem since it's a brand new engine with only ~8,000 miles on it.
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Old Jun 26, 2008 | 07:16 PM
  #3181  
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From: Under my car
Originally Posted by jackhain
An another note, a vacuum leak really doesn't explain why the engine goes pig rich (11.1) at around 5,700 rpm and then comes back a little at 7,600rpm...
Actually, it does.
You are running the 5a calibration, which adds 10% to the MAF.
At idle, where a vacuum leak is most noticeable, you need that 10% correction to make up for the unmetered air.
However, at higher loads and RPMs, the 10% is just adding a ton of fuel when it isn't needed.
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Old Jun 26, 2008 | 08:21 PM
  #3182  
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Hey Jeff,

If I bought an AP from you, can I request/purchase custom maps from you? You see..., I am interested in experimenting with a midpipe, but at the same time, I wish to stay competitive in AutoCross in Stock class, which does not allow midpipes.

I'm planning to put in on and off. What kinda prices can I expect for something like that?
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Old Jun 26, 2008 | 08:45 PM
  #3183  
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From: Under my car
Gotta read that first post!
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Old Jun 27, 2008 | 01:24 AM
  #3184  
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From: everywherez...
another highly modded S2K...it was sad...almost...

overall impressed with N/A results...

carry on...
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Old Jun 27, 2008 | 01:39 AM
  #3185  
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From: Aki City, Japan
can you go ahead and get mine sent? the guy who's supposed to be ordering it is busy or something lol... and I'm impatient... though I'm guessing you arent all to interested in sending something before you get the money
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Old Jun 27, 2008 | 01:53 AM
  #3186  
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From: orlando, fl
Originally Posted by dothackRAVE
Hey Jeff,

If I bought an AP from you, can I request/purchase custom maps from you? You see..., I am interested in experimenting with a midpipe, but at the same time, I wish to stay competitive in AutoCross in Stock class, which does not allow midpipes.

I'm planning to put in on and off. What kinda prices can I expect for something like that?

wow,

the instructions are going to be very hard for you... i think you are going to be the king of the stupid, i did not read the anything posts soon..

hint, this is not a blender. you have to read, and think.

the horror..

beers
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Old Jun 27, 2008 | 06:34 AM
  #3187  
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^Thanks for being a big help. Jackass.
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Old Jun 27, 2008 | 08:32 AM
  #3188  
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From: Lake County, Illinois
Originally Posted by MazdaManiac
Actually, it does.
You are running the 5a calibration, which adds 10% to the MAF.
At idle, where a vacuum leak is most noticeable, you need that 10% correction to make up for the unmetered air.
However, at higher loads and RPMs, the 10% is just adding a ton of fuel when it isn't needed.
Ahhh, got it.

I suppose a good way to test that theory is to flash the "0" calibration and see how my AFR reacts. If the numbers are better, then I get to spend a day checking everything under the hood for leaks.

Thanks for the input.
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Old Jun 27, 2008 | 10:21 AM
  #3189  
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Jeff, how much longer do you anticipate it will be before you get to my e-mail? It's been three weeks so I'm a little concerned. Please let me know if I need to email you anything else.
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Old Jun 27, 2008 | 12:49 PM
  #3190  
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From: Ellicott City, MD
I might be interested in ordering one of these things. Do I just purchase direct from the Cobb site, or is there a better option?
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Old Jun 27, 2008 | 12:50 PM
  #3191  
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purchase from the cobb website if you think you'll be happy with the stock map they supply.

purchase from mazdamaniac.com if you want tuned maps for your application (FI included)
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Old Jun 27, 2008 | 12:53 PM
  #3192  
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From: Ellicott City, MD
Originally Posted by mysql
purchase from the cobb website if you think you'll be happy with the stock map they supply.

purchase from mazdamaniac.com if you want tuned maps for your application (FI included)
So I assume that if my car is bone stock, it won't really matter where I purchase from, but if I should add a cold air intake or midpipe, etc., then I'd be better off with mazdamaniac?
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Old Jun 27, 2008 | 12:54 PM
  #3193  
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From: Sunny See attle
I wouldn't assume that. Everyone's car does not respond the same. You are definitely better off getting it from MM as he provides a matrix of maps to get you dialed in for your particular car.
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Old Jun 27, 2008 | 12:55 PM
  #3194  
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From: san mateo
Originally Posted by alphamale
So I assume that if my car is bone stock, it won't really matter where I purchase from, but if I should add a cold air intake or midpipe, etc., then I'd be better off with mazdamaniac?
yes, you'd better off with mazdamaniac
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Old Jun 27, 2008 | 02:02 PM
  #3195  
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Originally Posted by alphamale
So I assume that if my car is bone stock, it won't really matter where I purchase from, but if I should add a cold air intake or midpipe, etc., then I'd be better off with mazdamaniac?
No one map will work out of the box for everyone. You take a huge risk by ordering through cobb since you won't know how well the map works for you, and you will not be able to have any changes made to the map (like increasing omp flow rates, or changing radiator fan temps).

Also if you buy from cobb, you will not be able to get support from Mazdamaniac afterward. You either buy from him or you don't. The price is the same either way, so there isn't any gains to go elsewhere.
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Old Jun 27, 2008 | 02:26 PM
  #3196  
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Thank you mysql, I'd really like to get the AP from MM when it's fiscally appropriate for me =)

What's the best way to handle dyno tuning? I mean, can I find a reputable shop in socal and have them tune for best power on a dyno with the cobb AP? I'd guess that would work...

Or could I book some dyno time and have someone from rx8club come help me out?

Just not sure what the best way to go is...
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Old Jun 27, 2008 | 02:41 PM
  #3197  
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From: Under my car
Originally Posted by Jasonawojo
Jeff, how much longer do you anticipate it will be before you get to my e-mail? It's been three weeks so I'm a little concerned. Please let me know if I need to email you anything else.
Sent. Its been two weeks, BTW.

Originally Posted by alphamale
So I assume that if my car is bone stock, it won't really matter where I purchase from, but if I should add a cold air intake or midpipe, etc., then I'd be better off with mazdamaniac?
If you buy it directly from Cobb, its likely it will be essentially a paperweight.
I have yet to see more that one or two cars work with their provided map.

Last edited by MazdaManiac; Jun 27, 2008 at 02:44 PM.
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Old Jun 27, 2008 | 02:49 PM
  #3198  
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From: Ellicott City, MD
If you buy it directly from Cobb, its likely it will be essentially a paperweight.
I have yet to see more that one or two cars work with their provided map.[/QUOTE]


Point well taken, but I've never dyno'ed my car and wouldn't know where to go where I'd get someone to work with me, so short of doing that, how would I know how well my particular map was working on my particular car?

BTW, I'm located in the Balto/Wash area (actually Balto to be more specific).
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Old Jun 27, 2008 | 02:55 PM
  #3199  
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you drive it, follow the MM directions and if you need adjustments, you can talk to Jeff to make changes. It's even better if you can log your car information (such as afrs) and he can remotely use that to redo the map if required.
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Old Jun 27, 2008 | 03:04 PM
  #3200  
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From: Ellicott City, MD
Originally Posted by mysql
you drive it, follow the MM directions and if you need adjustments, you can talk to Jeff to make changes. It's even better if you can log your car information (such as afrs) and he can remotely use that to redo the map if required.

Cool. So I can get the full benefit of the AP without any dyno's.
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