Drivetrain The Official ALTA AccessPORT Thread
#2802
i know this is a PITA for people to answer. it also annoys me when people ask similar questions. with that out of the way, i am going to ask anyway...
my first question is: what are the "off the shelf" tuning/power limits of this device for an '07/08 MCS? are those limits shared with the '07/08 JCW? the reason i ask is because the nearest authorized tuner is 400+ miles away, and i would be limited to what i could download and flash for quite some time.
my second question is: what is the most power squeezed out of one of these things, when coupled with a myriad of other aftermarket goodies. Altas website claims 214hp/265tq(flywheel i presume?) with the tuner and only their dual cat exhaust and their own intercooler. what if one were to also install hard tubes, a catless downpipe and high flow intake, such as the M7 Super AGS or DDM RIS, or even Altas own intake. would the ecu/AP compensate for these changes and make even more power?
my first question is: what are the "off the shelf" tuning/power limits of this device for an '07/08 MCS? are those limits shared with the '07/08 JCW? the reason i ask is because the nearest authorized tuner is 400+ miles away, and i would be limited to what i could download and flash for quite some time.
my second question is: what is the most power squeezed out of one of these things, when coupled with a myriad of other aftermarket goodies. Altas website claims 214hp/265tq(flywheel i presume?) with the tuner and only their dual cat exhaust and their own intercooler. what if one were to also install hard tubes, a catless downpipe and high flow intake, such as the M7 Super AGS or DDM RIS, or even Altas own intake. would the ecu/AP compensate for these changes and make even more power?
#2804
#2806
what i'd really like to know is who is making the most reliable power with one of these, on a stock turbo/stock internal engine.
M7 AGSR or DDM RIS intake, CNT 2.5" exhaust, Exhaust Depot catless downpipe, Forge intercooler, Forge or other hard pipe kit, and intercooler sprayer(for warmer months) are what i'm looking into purchasing. i know theres probably no off the shelf map for this, which is why i'd like to know what the stock ECU with AP can compensate for.
#2807
#2809
#2810
Intake, Intercooler, catless dp and a 2.5" catless exhaust none of which is Alta. I had it dyno'd before but, it was saying like 150/170 which was little off because they hooked it up wrong and were saying it was running lean.
#2811
not too far off from what Alta claims, provided their dyno numbers are at the fly. 170hp/200tq at the fly - 15% for drivetrain loss would be 145/170 "ish" at the wheels, and 214/265 would come out to about 182/225. perhaps you picked up some peak whp with the intake and no cats, but lost a few ft/lbs of torque
meanwhile wayne picked up 20hp/35tq at the wheels, from just the AP alone. seems like Wayne had an optimistic dyno, but still not really that far off from what Alta claims.
i'd like to hear some more examples
#2815
Now there is something I'd reallllly like to see more examples of. If Alta is getting 214/265 at the wheels, there has got to be room for improvement. If their numbers aren't inflated or "optimistic", I would expect to see substantial gains from a catless down pipe and proper intake, provided there's a map for that.
#2817
#2818
I don't want to read through 113 pages to find an answer, so I will ask. Can the access port fix the issues with the "lazy" gas pedals on the automatics? I tried the D1 spec throttle controller, but it didn't fix the delay between pushing the gas pedal and the car starting to move. It's driving me nuts, dealer says its normal.
#2819
According to their website, the stage 3 consists of a 3" turbo back(with two cats), an intercooler, and the access port. Makes an advertised 214hp/265tq, and no mention of a high flow intake. If they are truly gaining 45whp & 65wtq without a high flow intake, you would almost have to see an additional 8-10whp by adding one. Unless, perhaps they have discovered that those gains are the safe limit of the fuel pump and/or injectors, and adding any more air causes a lean A/F situation.
Oh and jtack, I understand that it's a hub dyno, and am actually quite familiar with the Dyna-Pack system. I actually prefer them to a Dynojet, because while they may read a tad high, they remove the wheel weight and balance from the equation.
Oh and jtack, I understand that it's a hub dyno, and am actually quite familiar with the Dyna-Pack system. I actually prefer them to a Dynojet, because while they may read a tad high, they remove the wheel weight and balance from the equation.
#2821
#2822
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#2823
And Creeve, the reason I am asking about the limits of the tuning and fuel is this thread is about the tuner itself, the software designed around it, and its limitations. I don't need to ask about the limits of the turbo, but if I did, it would be in a turbo thread.
Since we're on that topic, and again, i'm not trying to be a smartass, but you cant simply claim that "the pistons fail above 21-22psi". 22psi on a 14b isn't quite the same as 22psi on a GT60.
#2824
#2825
Beau M, probably the second best change that I noticed from the AP is the gas pedal fix. It nearly eliminates the delay. I am running a stock 08 MCS, so just on the Stage 1 92 octane map it is a definate improvement. The best change is the surge at midrange (2500-4000 rpm) that does not factor into the peak numbers that people talk about. It is truly painful every time I go to the dealer and uninstall the AP, it makes me appreciate it. No regrets on the funds spent for this, Alta has been helpful in my case.
Mike
Mike