thoughts on aem eti vs stillen gen3

XwChriswX · 01-05-2013, 08:56 AM

Quote:

Originally Posted by Hotrodz

I totally agree with this statement. I have had an AEM CAI installed for about three months and just removed it yesterday as I could not get it to work without the check engine light coming on and having problems with air flow. There was quite a bit of hesitation during shift changes and the engine would periodically shut down when under load going up hill. After discussing the issue with Seb at SpecialtyZ, he recommended I remove the CAI and replace it with the OEM set up and get K&N drop in filters since I'm getting a tune anyway and with the mods I have the horsepower loss is minimal and the vehicle will perform better. A very expensive lesson for me.

As the saying goes "keep it simple...stupid!" Got Z1 silicone post-MAF intake hose on the way as well. This setup has been suggested by many on the forum.

Might be too late to do so, but I wonder if you still had the AEM's on, and then got a tune With them, if it would solve some of the issues?

Hotrodz · 01-05-2013, 09:26 AM

Yup, that was what I was holding out for, but the tuner suggest I switch it out because the MAFS is always trying to adjust the ECU with AEM's setup. He suggested gen 3s if I felt the need to have an aftermarket CAI. I think it the whole law of diminishing returns as you add mods related airflow should equal thing out since I have ART pipes and a better flowing CBE. The whp loss should be no more than 5. It's more about peace of mind at this point for me. I don't track, but I want my car to perform the way it looks!!!

DEpointfive0 · 01-05-2013, 09:29 AM

I think the G3'a are also the best because intakes like the AEMs and Takedas have oversized piping that gets smaller at the MAFs... Which creates choppy air, not smooth airflow

SS_Firehawk · 01-05-2013, 09:35 AM

I have no issues with my AEM's. I think the ETI module works. There was no discernible difference between my untuned and tuned numbers. Car got tuned, dyno'd it in similar conditions as my original run and it was the same result. AFR's were within .3 of each other, 9 months apart, and at a different elevation (still a dynojet). I made decent gains on a modified car, but it was including pulleys. 16whp combined gains, I would guesstimate 8-10whp above 6500rpm came from the intakes. The intakes don't neck down at the MAF to "trick" the MAF readings, it stays the same diameter. I don't feel the intake location is a problem. It does not receive direct airflow, but it is not a sealed space, and I have not sucked up any water, even after washes or torrential rains. They come in polished or powder coated gunmetal for the same price and can usually be found for at least $100 cheaper than the G3's.

In my opinion, there is enough evidence to say that the difference after tuning between CAI's is minimal. Lastly, because the ETI modules are still functioning after tuning, the ECU is not going to try and revert what tuning changes were made to the AFR's. I don't know how much of an issue, if at all, but some cars do this on their own.

chknhawk · 01-05-2013, 09:53 AM

Quote:

Originally Posted by SS_Firehawk

I have no issues with my AEM's. I think the ETI module works. There was no discernible difference between my untuned and tuned numbers. Car got tuned, dyno'd it in similar conditions as my original run and it was the same result. AFR's were within .3 of each other, 9 months apart, and at a different elevation (still a dynojet). I made decent gains on a modified car, but it was including pulleys. 16whp combined gains, I would guesstimate 8-10whp above 6500rpm came from the intakes. The intakes don't neck down at the MAF to "trick" the MAF readings, it stays the same diameter. I don't feel the intake location is a problem. It does not receive direct airflow, but it is not a sealed space, and I have not sucked up any water, even after washes or torrential rains. They come in polished or powder coated gunmetal for the same price and can usually be found for at least $100 cheaper than the G3's.

In my opinion, there is enough evidence to say that the difference after tuning between CAI's is minimal. Lastly, because the ETI modules are still functioning after tuning, the ECU is not going to try and revert what tuning changes were made to the AFR's. I don't know how much of an issue, if at all, but some cars do this on their own.

I have the same without tune and same results. I am completely happy with aem. I only had one instance of moisture right after I installed the. Since then nothing. I didn't get a CEL until I put my catback with test pipes. Even then it was an air fuel mix error and it actually regulated the idle so I didn't clear it the second time it came on. I would log it to see but the CEL isn't always a bad thing. I think it's smart to include a self regulating module that adjusts on its own and helps the car run right. That's why I went wit aem...that and powder coat out of the box.

Hotrodz · 01-05-2013, 10:03 AM

Quote:

Originally Posted by SS_Firehawk

In my opinion, there is enough evidence to say that the difference after tuning between CAI's is minimal. Lastly, because the ETI modules are still functioning after tuning, the ECU is not going to try and revert what tuning changes were made to the AFR's. I don't know how much of an issue, if at all, but some cars do this on their own.

Hi SS, I have been waiting for you to weigh in as you are a fan of AEM. This really was the point I wanted to make. Each Z has its own personality and from everything I have read pretty much shows that if you get a tune the gains with most CAI are on the upper end of the RPM range and are within a few hp of each other.

I guess if it is about the biggest and best numbers, then be prepared to spend some time and money getting to know your Z...she like a woman. No offense ladies!

SS_Firehawk · 01-05-2013, 10:37 AM

Quote:

Originally Posted by Hotrodz

Hi SS, I have been waiting for you to weigh in as you are a fan of AEM. This really was the point I wanted to make. Each Z has its own personality and from everything I have read pretty much shows that if you get a tune the gains with most CAI are on the upper end of the RPM range and are within a few hp of each other.

I guess if it is about the biggest and best numbers, then be prepared to spend some time and money getting to know your Z...she like a woman. No offense ladies!

The intakes and pulley's were by far best bang for buck improvement I made to the car. Unfortunately, I have to remove both for my twin supercharger upgrade... I have a lot of info my my sig link about it as well. Indeed, these cars do have their own temperments. I'm happy mine worked as well as it did before I decided to do my new project. Nearly every mod I did was never considered the most popular option, some controversial, but my gains definitely show. I made about 50whp over my baseline, I can't complain. Researching is really key, do your homework before opening the wallet. Everyone wants to vouch for a product that works great for them. Cheers to that, spread the word on products that perform.

edub370 · 01-05-2013, 10:53 AM

Quote:

Originally Posted by Hotrodz

I totally agree with this statement. I have had an AEM CAI installed for about three months and just removed it yesterday as I could not get it to work without the check engine light coming on and having problems with air flow. There was quite a bit of hesitation during shift changes and the engine would periodically shut down when under load going up hill. After discussing the issue with Seb at SpecialtyZ, he recommended I remove the CAI and replace it with the OEM set up and get K&N drop in filters since I'm getting a tune anyway and with the mods I have the horsepower loss is minimal and the vehicle will perform better. A very expensive lesson for me.

As the saying goes "keep it simple...stupid!" Got Z1 silicone post-MAF intake hose on the way as well. This setup has been suggested by many on the forum.

enter, injen intakes.... like aem, without all the hesitation/tricking computer bs. only water issues i had is when i parked my car on a downhill slope in about 4 hours of rain, car just sputtered a little. let it sit overnight and it was fine. no intake has ever "hydrolocked" a 370z. ever.... even tho that phrase gets tossed around on this site like a $2 whore.

the only thing i don't like about stillens, is they are kinda ugly imo. why do they have a random coupler in the middle of the intake?? BUT, u can't argue with the great track record that intake has had.

if i had to get an intake right now, it would be akumas. simply the sharpest looking intake available at the moment.

they will all perform within 3-4 hp of each other, so differences are negligable. just boils down to opinion.

ziaprowler · 01-05-2013, 01:11 PM

Also I live at 7000 feet above sea level. I know on stock Toyotas the mafs read low and are fuel trims arent normal as a result of the elevation. I know my power here is lower and that gains fron anything will not be as great. Im jusy wondering if these systems will function properly at my elevation. Thanks

Sales@AAMComp · 01-05-2013, 03:58 PM

I'll have something neat for you guys in the next week or so

A few members already got the inside scoop but I don't want to leak all the info just yet!

Very small teaser: Our intakes 1) work on the stock tune via a tuning insert by the MAF, 2) with the tuning insert removed you run a full 2.75" piping, this requires a tune or recalibration of the MAF, 3) if you decide to go with our TT kit in the future, the intakes work in conjunction with our IC piping! so you won't have to try to get rid of your intakes or sell them!

Kevin@AkumaMS · 01-08-2013, 11:29 AM

!Come check out the Akuma Spec Rev3 Intake!

-The Rev 3's are made from 6061 aluminum and include nomex couplers, K&N Oiled Filters and include all necessary hardware.
-They are made for ease of installation and removing with as little work as possible
-K&N Filters with angled inlets for optimal fitment
-12-14whp increase can be expected using just the intakes!
-More can be expected with proper cat back exhausts!
-20whp increase with an invidia catback and the AKUMA Rev 3 intakes!
***These intakes require tuning but for anyone with an Accessport or an Up-Rev we can provide the proper info to make the changes yourself***

We have multiple threads with plenty of info, commentary, and dyno sheet on these intakes in the link below
-http://www.the370z.com/group-buys/58954-akuma-motorports-rev3-intakes.html
-http://www.the370z.com/intake-exhaust/55275-akuma-motorports-370z-intake-post1771764.html#post1771764

Brushed Aluminum Installed

juld0zer · 01-15-2014, 01:22 AM

SS, did you by any chance compare IAT readings via an OBDII reader before and after the AEM install?

7speed · 01-15-2014, 11:45 AM

I haven't had any hestiation with my aem but has been causing random misfire code and cold weather seems to trigger it more often.

The electronics on it probably are bull so I plan on eventually having it bypassed. But it same diameter throughout so haven't done it , plus I may just wait until tune.

SS_Firehawk · 01-15-2014, 01:32 PM

Quote:

Originally Posted by juld0zer

SS, did you by any chance compare IAT readings via an OBDII reader before and after the AEM install?

I didn't get a before, but IAT's were within 10 degrees of ambient when in motion.

juld0zer · 01-15-2014, 05:40 PM

it's summer here in Australia and yesterday the car drove so badly it was not possible to overtake. i'm getting massive heatsoak issues - 50-60*C while rolling at 70kmh is ridiculous.

Thing is, the right hand side is the side the ECU reads IAT from and this happens to be the side with the power steering cooler lines which are blazing hot. I wrapped them with exhaust wrap yesterday and put some foil around the intake pipe so we'll see how it goes.

Thanks for you input though. It's really disappointing.

I also tested to ensure the ETI box is not fudging the signal or sending a signal
of ita own. I pointed a hairdryer at the ETI box and it did not affect the IAT.
It is definitely reading from the MAF sensor

01-05-2013, 09:26 AM	#17 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	Yup, that was what I was holding out for, but the tuner suggest I switch it out because the MAFS is always trying to adjust the ECU with AEM's setup. He suggested gen 3s if I felt the need to have an aftermarket CAI. I think it the whole law of diminishing returns as you add mods related airflow should equal thing out since I have ART pipes and a better flowing CBE. The whp loss should be no more than 5. It's more about peace of mind at this point for me. I don't track, but I want my car to perform the way it looks!!! __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

01-05-2013, 09:35 AM	#19 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	I have no issues with my AEM's. I think the ETI module works. There was no discernible difference between my untuned and tuned numbers. Car got tuned, dyno'd it in similar conditions as my original run and it was the same result. AFR's were within .3 of each other, 9 months apart, and at a different elevation (still a dynojet). I made decent gains on a modified car, but it was including pulleys. 16whp combined gains, I would guesstimate 8-10whp above 6500rpm came from the intakes. The intakes don't neck down at the MAF to "trick" the MAF readings, it stays the same diameter. I don't feel the intake location is a problem. It does not receive direct airflow, but it is not a sealed space, and I have not sucked up any water, even after washes or torrential rains. They come in polished or powder coated gunmetal for the same price and can usually be found for at least $100 cheaper than the G3's. In my opinion, there is enough evidence to say that the difference after tuning between CAI's is minimal. Lastly, because the ETI modules are still functioning after tuning, the ECU is not going to try and revert what tuning changes were made to the AFR's. I don't know how much of an issue, if at all, but some cars do this on their own. DEpointfive0 likes this. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction Last edited by SS_Firehawk; 01-05-2013 at 09:37 AM.

01-05-2013, 03:58 PM	#25 (permalink)
Sales@AAMComp A True Z Fanatic Join Date: Jul 2012 Location: Annapolis Junction, MD Posts: 4,079 Drives: GT-R Rep Power: 21	I'll have something neat for you guys in the next week or so A few members already got the inside scoop but I don't want to leak all the info just yet! Very small teaser: Our intakes 1) work on the stock tune via a tuning insert by the MAF, 2) with the tuning insert removed you run a full 2.75" piping, this requires a tune or recalibration of the MAF, 3) if you decide to go with our TT kit in the future, the intakes work in conjunction with our IC piping! so you won't have to try to get rid of your intakes or sell them! __________________ Tyler Day, Technical Sales TylerD@aamcompetition.com 301-497-9214 Direct AAM Competition \| YouTube channel \| LIKE us on Facebook!

01-08-2013, 11:29 AM	#26 (permalink)
Kevin@AkumaMS Base Member Join Date: May 2012 Location: New Jersey Posts: 136 Drives: 01 Suby 2.5RS Rep Power: 13	!Come check out the Akuma Spec Rev3 Intake! -The Rev 3's are made from 6061 aluminum and include nomex couplers, K&N Oiled Filters and include all necessary hardware. -They are made for ease of installation and removing with as little work as possible -K&N Filters with angled inlets for optimal fitment -12-14whp increase can be expected using just the intakes! -More can be expected with proper cat back exhausts! -20whp increase with an invidia catback and the AKUMA Rev 3 intakes! *These intakes require tuning but for anyone with an Accessport or an Up-Rev we can provide the proper info to make the changes yourself* We have multiple threads with plenty of info, commentary, and dyno sheet on these intakes in the link below -http://www.the370z.com/group-buys/58954-akuma-motorports-rev3-intakes.html -http://www.the370z.com/intake-exhaust/55275-akuma-motorports-370z-intake-post1771764.html#post1771764 Brushed Aluminum Installed Last edited by Kevin@AkumaMS; 01-08-2013 at 11:40 AM.

01-15-2014, 11:45 AM	#28 (permalink)
7speed Track Member Join Date: Jan 2013 Location: Dallas Posts: 697 Drives: 09 370 sports clone Rep Power: 13	I haven't had any hestiation with my aem but has been causing random misfire code and cold weather seems to trigger it more often. The electronics on it probably are bull so I plan on eventually having it bypassed. But it same diameter throughout so haven't done it , plus I may just wait until tune. __________________ 09 370z 6spd traded 1/12/15 for 15 Challenger RT 6spd Last edited by 7speed; 01-15-2014 at 05:52 PM.

01-05-2013, 09:29 AM	#18 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	I think the G3'a are also the best because intakes like the AEMs and Takedas have oversized piping that gets smaller at the MAFs... Which creates choppy air, not smooth airflow

01-05-2013, 01:11 PM	#24 (permalink)
ziaprowler Base Member Join Date: Dec 2012 Location: Santa Fe, NM Posts: 20 Drives: 09 370Z M6 Rep Power: 12	Also I live at 7000 feet above sea level. I know on stock Toyotas the mafs read low and are fuel trims arent normal as a result of the elevation. I know my power here is lower and that gains fron anything will not be as great. Im jusy wondering if these systems will function properly at my elevation. Thanks

01-15-2014, 01:22 AM	#27 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	SS, did you by any chance compare IAT readings via an OBDII reader before and after the AEM install?

01-15-2014, 05:40 PM	#30 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	it's summer here in Australia and yesterday the car drove so badly it was not possible to overtake. i'm getting massive heatsoak issues - 50-60*C while rolling at 70kmh is ridiculous. Thing is, the right hand side is the side the ECU reads IAT from and this happens to be the side with the power steering cooler lines which are blazing hot. I wrapped them with exhaust wrap yesterday and put some foil around the intake pipe so we'll see how it goes. Thanks for you input though. It's really disappointing. I also tested to ensure the ETI box is not fudging the signal or sending a signal of ita own. I pointed a hairdryer at the ETI box and it did not affect the IAT. It is definitely reading from the MAF sensor

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