i installed my aem intake this weekend..

loaded up cobb's stage 1 aem ca/az/nv 91 octane map..

drove around for 15 miles.. around 9pm.. 70degree outside.. did two wot 3rd gear logs.. hit peak boost of 23.3 on the ap even tho log shows a bit lower.. according the map notes.. boost target is 22.5 +/- .8 psi.... am i boosting too high causing too much knock?..

car is stock except for the aem

log 1:



log 2:

 

Thats probably the issue
Aem intakes can vary and one map cant compensate for them all

Time for a wideband, or a few dyno pulls to verify AFR

 

jon i emailed you about a ap pro tune this morning .. and didn't you say you have ap maps for aem?

also would boosting octane help? you know how our ca 91 **** is

 

easy way to check
toss 5 gal of 100 in and re log!

someone will return your email in the am!
i cant think schedule right now....

 

problem is i don't know where i can get 100 octane around 91780 lol

how bout a gallon tolulene into the tank

 

Some of these may or may note still be there


Fullerton
Mark's 76
2043 W Commonwealth Ave. (cross of Gilbert) Between Magnolia and Brookhurst, north of I-5 and 91 Fwy.
(714) 278-0986
Open 24 hours
100 octane unleaded at the pump @ 6.99 (4/18/2007)

Bellflower
Bellflower 76 Service
16719 Lakewood Blvd. Bellflower (562) 633-9176
100 octane in barrels @ 10.00 a gallon (4/18/2007)
110 octane LEADED in barrels @ 10.00 a gallon (4/18/2007)

Huntington Beach
Huntington Beach Car Wash
18971 Beach Blvd near Garfield Ave. (714) 847-4924
Hours: 8 AM - 5 PM, 7 days a week.
100 octane VP Racing at the pump @ 5.89 (4/18/2007)
Pump is padlocked because that pump doesn't have an ATM reader. You'll need to pay inside.

Indio
Clark's Travel Center
82-253 Indio Blvd. (Exit Indio Blvd off I-10) (760) 342-4776
http://www.clarkstravelcenter.com/
Sunoco 100 unleaded at the pump @ 6.19 a gallon (4/18/2007)
Sunoco 110 leaded racing fuel at the pump @ 5.99 a gallon (4/18/2007) Open 24 hours

Laguna Hills
76 Station
25172 Cabot Rd. (near La Paz) (949) 770-8300
101 octane unleaded at the pump @ 8.99 a gallon (4/18/2007)

Los Angeles
Rio Petroleum 76
11675 W. Pico Blvd. (cross of Barrington) (310) 477-6144
100 octane unleaded VP fuel at the pump @ 8.49 a gallon (4/18/2007)

Los Angeles
Brentwood 76
12037 San Vicente Blvd. (cross of Bundy) (310) 476-4818
100 octane unleaded fuel at the pump @ 7.89 a gallon (4/18/2007)

Newport Beach
Newport Hills 76
2690 San Miguel Rd. (949) 644-7151
Hours: 6 AM - 10 PM, 7 AM - 10 PM on Sundays.
100 octane unleaded fuel at the pump @ 7.99 a gallon (4/18/2007)

Norco
Mark's 76
2807 Hamner Ave. (1/2 mile north of Second St. exit from I-15) (951) 278-2330
Hours: 5:30 AM to 10:30 PM
100 octane unleaded at the pump @ 6.97 a gallon (4/18/2007)

Orange
Mitchell's Auto, " The Pit Stop "
700 Chapman Ave. (714) 532-5900
100 octane unleaded at the pump @ 7.35 a gallon (4/18/2007)
110 octane leaded at the pump @ 7.05 a gallon (4/18/2007)

Pasadena
Arroyo Parkway 76
155 E. Glenarm St. (626) 441-3392
South of California Blvd. between Fair Oaks and Los Robles where the 110 Fwy ends
Hours: 6:00 AM to 10:00 PM
100 octane unleaded at pump @ 6.49 a gallon (4/18/2007)

Pomona
Phillips Ranch 76
16 Village Loop Rd. (909) 623-2429
Hours: 5:30 AM to 9:00 PM
100 octane unleaded at pump @ 7.49 a gallon (4/18/2007)

Rancho Santa Fe (near Encinitas off I-5)
VP Racing fuels
6089 La Flecha 858-756-2929
VP racing fuel 100 octane at the pump @ 6.99 a gallon (4/18/2007)

San Marino
Huntington 76
2390 Huntington Drive (626) 286-6030
100 octane unleaded at pump (unconfirmed) (4/18/2007)

West Covina
South Hills 76
150 S. Citrus Ave. (626) 339-8018
100 octane unleaded at pump @ 6.95 a gallon (4/18/2007)

Rosamond
(unconfirmed) Willow Springs Race Way (road track)
http://www.willowspringsraceway.com/home/home.asp
$10 gate fee during weekend events.

Bakersfield
(unconfirmed) Buttonwillow Raceway (road track) http://www.buttonwillowraceway.com/
(located 28 miles northwest of Bakersfield off I-5) $10 gate fee during weekend events.

Downey
Socal Performance
9723 Washburn Road. Downey, CA 90241
(562) 862-9122
Open Mon-Fri; Saturday mornings (Call)
Lowest grade they carry is
108 Octane @ 6.75 per gallon. (4/18/2007)
114 oct @ 7.50 per gallon (4/18/2007)
121 oct @ 8.00 per gallon (4/18/2007)

 

cool.. ill call up a few tomorrow thanks

 

i compared the fuel maps for stage 1 stock acn 91 octane vs stage 1 aem acn 91 octane..

and it seems the fuel maps are the SAME!!! cobb.. shouldn't the fuel delivery compensate for the much high air flow of the AEM??

someone else did a aem map vs stock map comparison and all they found different was the MAF SENSOR calibration!!??

https://www.evolutionm.net/forums/ev...ab-now-12.html

what about more fuel?? for the aem's boost increase.. i was hitting 22.2 peak on stage 1 stock now im hitting 23.3 peak on stage 1 aem..

 

here's a log from this morning on my way to work.. i didn't hit redline due to traffic.. same 3rd gear wot..

hardly any knock and the timing was not retarded like log 2 from last night..

what gives!!

i changed nothing since last night

 

Is the "knock retard" column the same as "learned knock retard"? Because, maybe it has learned and adjusted from the night before, and no longer retards any further showing no change.

And what's up with the throttle not opening 100%? At some point, at a certain mod level, this has to be a choke point.

 

i don't think throttle every reaches 100 i dont think it's measure in % thats why.. but trust me my foot was through the floor

i don't think the ecu learned.. because if it learned... it would have retarded the timing.. as you can see the ignition advance is back to normal on the 3rd log.. unline the 2nd log where the timing was obviously retarded

 

88% is about as high as the drive by wire signal goes on our cars, so that part should be normal. It's typically the case that if a tune is right on the edge for the type of fuel used that runs made later in the afternoon are more heat soaked compared to driving first thing in the cooler morning hours. A good front mount intercooler would reduce that effect, not sure if you have one.

 

Thats because the MAF calibration is what makes the car fuel properly
These are NOT evo 8/9 they are more like a subaru now

 

how come my run this morning was so normal.. is it normal for it to fluctuate like this when the flash is new?

i wish cobb would come out and say something about this

 

2 degrees isnt abnormal for a tune to fluctuate
again you are using an off the shelf map that isnt custom tuned to your setup

.5 afr difference in that area can be the difference between knocking and not

get on a dyno and check afr or get a wideband you can log to verify
you can also reset the ecu and try logging again

reset it by pulling the connectors off the ecu for a few sec, then reconnect and go from there