I have found the Cobb Evo X map to be much more on the agressive power side than the old Subaru tunes they had for many years. This is no doubt due to the more robust nature of the Evo X motor and its amazing ability to avoid knock. I am not sure how much of a fudge factor there is to mix and match parts with those base maps. Time will tell how they respond to additional parts.

Al

 

^^Al would you leave an AEM intake on the car or go back to stock if you where getting a custom tune? I have the Nisei Turbo Inlet that will stay, but I can put the stock box back on.

 

AL does that apply to all the models and base map. aka 93 oct GSR and MR, and 91oct GSR? Thanks.

Also did you see what i posted about target boost, it mentioned that it would have to be adjusted mechanically? would that be the WGA nut?

 

I wouldn't adjust any boost settings unless you have a real boost guage. The 18.29 psi reading from AP seems to be clipping and therefore is not correct.

 

thanks for the info, i will give COBB a call and i guess i'll do a 3rd pull see what the logger says mine is doing.

 

I found this bug on Friday and I have reported to our engineering team. We should hopefully have a firmware update to correct this issue shortly. Ahead of time, thank you for your patience.

Christian.

 

Dynoflash... thanks for the reply... it's the AEM CAI (21-678), and I use 91 Octane fuel, as that seems to be the only kind I can get up here... That's my only mod so far, although I am considering a Buschur exhaust, with a quiet muffler... so, just to confirm, if I get it tuned with just the intake... it'll be fine... until I decide to add the exhaust, and then I have to get it professionally tuned again (everytime I add something?)

It'll be really unfortunate if I have to sit and look at that Accessport (even just for a couple days), and can't install it for fear of blowing up my motor or something... I wish I would have known about this prior to purchasing it...

 

I've done real back to back tests with the HKS drop in filter and every time it has leaned the car out .3-.4

The last HKS drop in made 20whp/15wtq just by dropping it in on a stock 10.

I also did a test where I tuned the 10 with the stock air filter, dialed in the AFR and then I put in the HKS drop-in filter and the car leaned out .3 but only gained 6whp. Big difference in power from un-tuned to tune.

Either way the filter leans the car out from taking out the restriction of the stock paper filter.

YMMV

I'll try to remember to find the charts this week.

 

Just spoke to Shawn at COBB, and the max psi it still @ 18, they are working on it. I was told that it appears to be a limitation with the actual part, but they should have a fix for it. Just in case anyone is wondering if you car is only boosting 18psi.

 

Might as well get them to look at the Load value peaking at 4801.1 also.

 

Great info! Looking at the power gains it seems like the filter would lean out ALOT more on a stock map vs a tuned map.

I would say the same theory also applies to other aftermarket intakes that only replaces the filter box of the intake. But not the ones replacing the MAF housing which tricks the airflow sensor reading.

 

Hello Everyone... I finally decided to try my Accessport, as I haven't been able to get an answer from Cobb... I tried the Stage 1 tune for a short run to the store and back and I'm pretty sure I could feel the difference... could have been the placebo effect, but, I'll know tomorrow for sure...

I looked through all the Live Data settings, as I was hoping to monitor the AFR, because, from what I understand, this is the issue when running an AEM CAI and the Accessport Stage 1, but, I don't know what to be watching, and what I should be looking for in terms of results...

If someone here in the forums could please help me, it would be greatly appreciated... otherwise, I guess I might unmarry this thing, and it'll be up for sale... that would be a shame though....

Any responses would be greatly appreciated! Thanks!

 

You cannot monitor/log AFR without a wideband AFR sensor. Currently you won't be able to log that via the AccessPort either.

 

It is no placebo effect my friend - the AP Stage I map has been doccumented to make a solid 30 whp gain

Al

 

Hi Japistani,

The best way to get a hold of Cobb would be to call. We have a few very knowledgeable guys on the phones and email. (801)713-0035

To answer your question the AEM intake is going to lean out your fueling. The AP is also going to lean out your fueling. Combining the two modifications with our current OTS maps may not be optimal for what the motor wants.

There are a couple of solutions.
1. Work with a tuner to get a custom tune addressing how the AEM intake affects the fueling on the vehicle. I believe Jon@HB speed runs a AEM intake and should have a tune ready to go. That being said, I'm sure Al or any of our other tuners would be happy to help out as well.
2. Replace the intake with the stock airbox for now. Your power increases from the AP will far out way the intake. It's free and worth a try We are considering releasing a OTS tune specific for out customers with AEM intakes. It's not for sure, but is very heavily being considered.

Either way we are more than happy to help get you running optimally with your current modifications. Please let me know if you have any other questions.

Thanks,
Rob