The good and the bad: mods+uprev lost power

Leuz · 10-10-2013, 01:31 AM

Quote:

Originally Posted by synolimit

Yeah I saw that... What I got from all this is the tuner isn't very good. 1. He didn't change the cold map. 2. Can't or doesn't scale the MAF right (I tune and this is very easy). 3. Needs to call other people for help for something everyone knows how to do. 4. Dyno's in the wrong setting (PS. You're making about 4% less than what the graph shows). I think it was a waste going to 2.75" pipes when you're NA making barely 300hp to begin with which the stock size is more than capable of handling, so I'm in to see if this tune holds together and the cars fine tomorrow which before didn't seem the case.

I've been with this tune for a month now (I hadn't had time to post about it before and wanted to be sure this time) and the car has been doing great.
Now, about the tuner... well... he is de-facto the Z place to go if you are in NorCal (people from the area correct me if I'm wrong). I am not expert enough to judge his capabilities but I think that he definitely overlooked the fact that I had CAIs that needed a proper tune, although stated by me multiple times that I had 2.75'' pipes. Anyway...

cdoxp800 · 10-09-2013, 07:34 PM

Why where they scaling your MAF Sensor when tuning?

Sh0velMan · 10-09-2013, 10:19 PM

Quote:

Originally Posted by cdoxp800

Why where they scaling your MAF Sensor when tuning?

Because the AAM intakes have a metering orifice that is larger than the stock airbox. Thus, you have to scale the MAF table when tuning to restore your open-loop calibration to something normal.

Edit: my stupid tablet replaced 'oriface' (which was orifice misspelled, doh) with 'preface'.... stupid auto correct.

cdoxp800 · 10-11-2013, 04:34 PM

Quote:

Originally Posted by Leuz

Correct. I stated already in my post where I am selling the CAIs that we could not get the tune right with the AAM in R-mode.

@cdoxp800: afaik with 2.75'' intakes MAF scaling is apparently necessary.

Quote:

Originally Posted by Sh0velMan

Because the AAM intakes have a metering orifice that is larger than the stock airbox. Thus, you have to scale the MAF table when tuning to restore your open-loop calibration to something normal.

Edit: my stupid tablet replaced 'oriface' (which was orifice misspelled, doh) with 'preface'.... stupid auto correct.

Humm. I have the Akuma intakes " 2.75" pipe and all we did was change the fuel multiplier.
Seems the tuner did it the really HARD way.

37ZERO · 10-11-2013, 03:45 AM

Has anybody else had this issue with the AAM's? Im just about to get mine tuned, Im currently running them with the restricters in.

Leuz · 10-11-2013, 12:04 PM

Quote:

Originally Posted by 37ZERO

Has anybody else had this issue with the AAM's? Im just about to get mine tuned, Im currently running them with the restricters in.

I would like to point out that technically it is not an issue of the intakes themselves. A cold air intake is just a pipe with a filter at the end, the issue I had is that my tuner, for some reason, could not adjust properly the MAF scaling.
Also, in my post I'm referring to the intakes in R-Line mode, in S-Line I bet you won't have any problem. Don't get me wrong, they are definitely very good intakes but after having tried the G3s too my personal preference goes toward the Stillens. Unfortunately I don't have a dyno comparison with the AAMs in S-Line and that's what I would like to see to see, I can just speak about butt-feelings haha.

osbornsm · 10-11-2013, 01:27 PM

Quote:

Originally Posted by Leuz

A cold air intake is just a pipe with a filter at the end...

Unless of course you have the AEM CAI, which has a computer chip (which fails) to trick the MAF sensors.

bacalhau1669 · 10-11-2013, 01:30 PM

Quote:

Originally Posted by osbornsm

Unless of course you have the AEM CAI, which has a computer chip (which fails) to trick the MAF sensors.

I have had my AEM intakes installed on my 2013 for a few thousand miles now and have had no issues. Im aware that the boxes sometimes have issues, but I am fortunate enough to not have them yet.

I am planning on getting a tune and using that wiring as a jumper and then tuning the maf with maf scaling by someone who knows what theyre doing.

No need to spread misinformation however.

synolimit · 10-12-2013, 02:05 AM

Quote:

Originally Posted by bacalhau1669

I have had my AEM intakes installed on my 2013 for a few thousand miles now and have had no issues. Im aware that the boxes sometimes have issues, but I am fortunate enough to not have them yet.

I am planning on getting a tune and using that wiring as a jumper and then tuning the maf with maf scaling by someone who knows what theyre doing.

No need to spread misinformation however.

Have you dyno'd? You won't know a drop of power unless you do. A guy from Indy drove here, never had a complaint. Had it tuned for months. Did a dyno day and had less HP than stock. Sell that junk and get a real cai! Tricking the ecu is like a gt wing on a corola. Its pointless and ghetto.

coolvans1988 · 12-12-2013, 05:50 PM

Did you do your tune at Specialty Z?

I ordered my set of the AAM CAI, since theres some issues based on your review with the uprev tune when doing the R-Line mode. You think its possible to still do the tune while in S-Line mode?

Leuz · 12-12-2013, 07:48 PM

CAIs in S-Line mode should not have any problem. I used them in S-Line on my stock Z without a tune with no problem at all.
Technically you should not having issues in R-Line mode either with a proper tune. I "think" we were not tuning the MAF scaling correctly but, at the same time, I also don't know of anybody that has successfully tuned them in R-Line. I'd love to hear from them tho

SS_Firehawk · 12-12-2013, 10:17 PM

My AEM's paired with pulley's untuned and broken O2 sensors gained 16whp on top of the full exhaust. Had things been running perfectly and with tuning, I don't doubt the gains would have been 25 or more. Unfortunately I didn't know about the O2 issue until after FI so no info on after it was fixed NA.

10-09-2013, 07:34 PM	#2 (permalink)
cdoxp800 A True Z Fanatic Join Date: May 2009 Location: FL Posts: 1,337 Drives: 2011 Nismo Rep Power: 21	Why where they scaling your MAF Sensor when tuning? __________________ 2011 Brilliant Silver NISMO 370z. #: 0046. PPE LTH \| MillSpec Cats \| F.I Exhaust \| Akuma Intakes \| Rotora 6/4 Brakes

12-12-2013, 07:48 PM	#11 (permalink)
Leuz Track Member Join Date: Nov 2012 Location: NorCal Posts: 555 Drives: Bunny Rep Power: 15	CAIs in S-Line mode should not have any problem. I used them in S-Line on my stock Z without a tune with no problem at all. Technically you should not having issues in R-Line mode either with a proper tune. I "think" we were not tuning the MAF scaling correctly but, at the same time, I also don't know of anybody that has successfully tuned them in R-Line. I'd love to hear from them tho __________________ 2013 PW 370Z Touring+Sport, NAV Tint 35% side, 18% back \| RJM clutch pedal \| ZSpeed SS lines \| Stillen Gen3 CAI \| Fast Intentions HFC and TDX 12'' CF CBE \| UpRev

12-12-2013, 10:17 PM	#12 (permalink)
SS_Firehawk A True Z Fanatic Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7336	My AEM's paired with pulley's untuned and broken O2 sensors gained 16whp on top of the full exhaust. Had things been running perfectly and with tuning, I don't doubt the gains would have been 25 or more. Unfortunately I didn't know about the O2 issue until after FI so no info on after it was fixed NA. luigi90210 likes this. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

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10-11-2013, 03:45 AM	#5 (permalink)
37ZERO Base Member Join Date: Oct 2012 Location: Burradoo Posts: 26 Drives: --- Rep Power: 14	Has anybody else had this issue with the AAM's? Im just about to get mine tuned, Im currently running them with the restricters in.

12-12-2013, 05:50 PM	#10 (permalink)
coolvans1988 Enthusiast Member Join Date: Oct 2012 Location: NA Posts: 402 Drives: 2013 370z PW A/T Rep Power: 14	Did you do your tune at Specialty Z? I ordered my set of the AAM CAI, since theres some issues based on your review with the uprev tune when doing the R-Line mode. You think its possible to still do the tune while in S-Line mode?