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Old 08-05-2003, 12:11 AM   #1
03WRX83
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Default AccessECUstage1 question.. cobb help..

I have a stage 1 accessecu reflash.. I am only making 14~14.5psi with it, and i have the cobb restrictor in that they have supplied me with.

My current mods are, intake silencer removed and txs uppipe.

I'm suposed to be making 15psi with this stage 1, and ive heard other people have too?



Can i do the 3/16mod with this setup, or add a mbc(which i used to have on the car)???
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Old 08-05-2003, 09:18 AM   #2
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bump
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Old 08-05-2003, 09:50 AM   #3
KGreb
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From Cobb's AECU FAQ -- target for stage 1 is 14.7 psi +/- 0.5 psi peak. I'd say you're making your target and shouldn't mess with it.
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Old 08-05-2003, 09:56 AM   #4
03WRX83
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ok thanks
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Old 08-05-2003, 01:34 PM   #5
stimpy
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The FBC will also alter target boost pressure based on ambiant temp and possibly barometric pressure. Being that it is summer, it may go up a little when it cools down. In any case, I think you are fine.

-Jon
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Old 08-06-2003, 07:05 PM   #6
Rexxxx
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Definitely,

The heat / humidity has been keeping my boost lower too(.09mpa stock boost gague). Cold dry nights generally hit .1mpa . All winter it would hit .1, always.

I have JDM up-pipe but stock restrictor. The supplied one caused spikes and wavering.
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Old 08-07-2003, 07:43 PM   #7
brizey
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I just put my stage 1 in last night (stock restrictor). I could barely hit 0.09 today, but it was well over 100 degrees. Makes it hard to evaluate. I may get up early tomorrow and go for a drive while it is still in the 70's. I hit 0.095 last night and it was about 90 degrees.
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Old 08-07-2003, 09:11 PM   #8
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I think it needs to be cooler and dryer. When I first got my stage 1 (93 octane) it was late spring and not hot and humid like now. My boost is a little lower now than before but I attribute that to the weather. Although I still get 1.0 now I was getting 1.1-1.2 back then. I'm NOT using the tube/restrictor that Cobb sent me. I have a Stage 1 (mapped for the Injen CAI), Vishnu uppipe, Blitz nur rear sec.

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Old 08-07-2003, 09:53 PM   #9
brizey
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I just went out for a drive. I hit about .098 in fifth gear, which is the highest I have ever seen the boost get on my car. It is still pretty hot out, maybe in the upper nineties (Dallas sux this time of year).
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Old 08-07-2003, 10:51 PM   #10
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what boost are you getting in 1st? Is it lower than the rest of the gears?
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Old 08-09-2003, 09:35 AM   #11
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pc109:

I find it hard to read the gauge in first gear. I am still getting used to the sound of the reflashed ECU, so I have to concentrate on the tach to shift. I will try to get a reading today, but it is still warm here in the big D (storm on the way this morning, though).

I think the peak is maybe only a little higher in first. It definitely pulls harder in the upper rpm range (6000-7000), and in first that probably means a higher peak. (In second and third, the peak is higher and it hold the peak longer.)
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Old 08-09-2003, 11:28 PM   #12
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I'm also running the AccessECU Stage1 for 91 octane, though I always make a point of putting the highest octane in I can find; usually 93. I went for the 91 oct. map for a slight margin of safety.

Anyway, I was just curious whether anyone else has decided to run with colder plugs. I know that Cobb doesn't sell them or mention anything about colder plugs being necessary, but was just curious. Just want to avoid detonation at all costs.

Thanks!
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