AEM Ultimate Resource Thread>>>>

[93V]

I'm most likely getting an EMS soon and have some questions.

1) If you use the EMS to control boost, you can only change it when you are running the program on a laptop, correct? Is there any way to modulate on the fly?

2) How do you installed the IAT and MAP sensors? Which are the best? Does it matter?

I am just trying to decide if I'm going to install it myself and then have someone else tune it, or if I should just have someone do the whole thing.

What are your thoughts?

I would read through, but there are 100+ pages.

Thanks for helping my laziness

-Chris

[pacman3000gt]

Originally Posted by 93V

1) If you use the EMS to control boost, you can only change it when you are running the program on a laptop, correct? Is there any way to modulate on the fly?

You can setup a hi/lo switch to toggle between a hi boost and typical boost. You would need to wire into an input switch, the method is up to you. You can use a relay a some mechanical switch of some sort... depending on what you are trying to do.

Originally Posted by 93V

2) How do you installed the IAT and MAP sensors? Which are the best? Does it matter?

IAT MAP is fairly straightforward... this requires you to look at a few of the older threads. I know the IAT you need to wire from the stock MAS harness. The MAP goes directly into the EMS. Best? I'm sure there are options out there... but IAT is an IAT. MAP will depend on how much boost you plan on running. Most won't need more than 3-3.5Bar. But if you feel cocky enough and want to run 35+psi... then you will need a 5bar.

Originally Posted by 93V

I am just trying to decide if I'm going to install it myself and then have someone else tune it, or if I should just have someone do the whole thing.
What are your thoughts?

Unless you have a beater car to drive while you research, install, troubleshoot... then I would take it to an professional EMS tuner. If the tuner is someone u know... you could install it and invite him over to do the software bit.
On the other hand, If you want to learn the ins-and-outs of the software... nothing is better than learning first hand. But depending on your pre-existing knowledge and your capacity to learn... your turnaround could be one week... or never.

[93V]

Originally Posted by pacman3000gt

You can setup a hi/lo switch to toggle between a hi boost and typical boost. You would need to wire into an input switch, the method is up to you. You can use a relay a some mechanical switch of some sort... depending on what you are trying to do.


IAT MAP is fairly straightforward... this requires you to look at a few of the older threads. I know the IAT you need to wire from the stock MAS harness. The MAP goes directly into the EMS. Best? I'm sure there are options out there... but IAT is an IAT. MAP will depend on how much boost you plan on running. Most won't need more than 3-3.5Bar. But if you feel cocky enough and want to run 35+psi... then you will need a 5bar.


Unless you have a beater car to drive while you research, install, troubleshoot... then I would take it to an professional EMS tuner. If the tuner is someone u know... you could install it and invite him over to do the software bit.
On the other hand, If you want to learn the ins-and-outs of the software... nothing is better than learning first hand. But depending on your pre-existing knowledge and your capacity to learn... your turnaround could be one week... or never.

Well, if i was going to do the install and try to tune a little, i was going to ask you to make me a map haha.

as for the boost control, sounds like i might as well keep my evc ez...its not worth a lot of money to sell it anyway.

I think i might give it a go...i'll be installing a fmic first...we'll see

my beater is an '05 350Z =)

[pacman3000gt]

Originally Posted by 93V

my beater is an '05 350Z =)

...beater, eh.

[93V]

Originally Posted by pacman3000gt

...beater, eh.

nobody believes me when i say it haha

[Weasel GTS]

Originally Posted by pacman3000gt

Just two questions...
1. Why an MBC? You could run a GM boost solenoid and have the EMS handle the boost.
2. How hard would it be to get some stock parts to break-in the motor, do you even see this as an option?

1. I wanted to control boost in car but I relise letting the AEM control boost is a better idea.
2. getting some stock parts would be a little hard on my wallet right now, since I just spent alot on the AEM+ sensors, wideband, egr block offs, krank vents, and some 99 lifters, and still have to pay for the engine work + forged pistons & rods.

-so if I dont go the stock injector route should I trust the guy (does not claim to be an AEM expert) to set up for a good break in, rather then than the old piggybacks. Or do you think someone some where could come up with a "break in map" for me?

[pacman3000gt]

Originally Posted by Weasel GTS

1. I wanted to control boost in car but I relise letting the AEM control boost is a better idea.

How would you control in the car with an MBC? If you are using an EBC then that's fine. You 'could' set the EMS for hi/lo boost settings via switch if that was what you were concerned with.

Originally Posted by Weasel GTS

2. getting some stock parts would be a little hard on my wallet right now, since I just spent alot on the AEM+ sensors, wideband, egr block offs, krank vents, and some 99 lifters, and still have to pay for the engine work + forged pistons & rods.

Well with a new motor... I'd rather you use something that's been proven. So that's why I mentioned stock injectors/ ECU. At least to break-in the motor with a safe environment. It's really hard to say a particular map will start your car right up... So you would want an EMS pro. He doesn't 'necessarily' need to specialize in 3s'... but he would need to be up-to-date with any problem spots that may arise from a 3s map(based on the version that you guys are using).

[Weasel GTS]

Originally Posted by pacman3000gt

How would you control in the car with an MBC? If you are using an EBC then that's fine. You 'could' set the EMS for hi/lo boost settings via switch if that was what you were concerned with.

lol yes it is a EBC... but still will use AEM

very true I really do want to protect my new motor, I have the origanal 96 ecu in now. the bigger turbos should not hurt any thing if they are turned down right? what about the Supra fule pump should that hurt anything? its running through ipo's pressur regulator...

I have a 91 NA too, the injectors are not the same as a 96TT right?
if im going to have just the original ECU running things what other precautions should I take?

[mehlosTT]

Got to ditch the 700 plus cc injectoirs with a SAFC...it can't handle that and the timing will be terribly high, the opposite of what you want with breaking in a new motor. listen to Pacman and install the stock injectors and stock ECU and run her for a good 1,000 miles or more...depends upon the rebuild vs stock shortblock..new honing techniques will let her seat fast under vac and boost loads.... after the rings are well seated, then ask here again for a start up workmap for timing and fuel maps. Just my 221,000 Stealth miles' $0.02 worth

[pacman3000gt]

Originally Posted by Weasel GTS

lol yes it is a EBC... but still will use AEM

very true I really do want to protect my new motor, I have the origanal 96 ecu in now. the bigger turbos should not hurt any thing if they are turned down right? what about the Supra fule pump should that hurt anything? its running through a pressur regulator...

When you are breaking in the motor... there's no reason to be in boost and a supra fuel pump shouldn't affect it. Just stay out of boost (I know it's probably hard for some people )... after the engine is properly-broken in... and oil changed blah/blah... then swap out the EMS/injectors/etc. asap.

Now I'm not saying 'avoid the EMS' when you break-in the motor... just make sure the guy tuning your car can get the car idling and running properly. It'd just be easier to use the stock ECU/injectors to save all that drama and downtime.

Originally Posted by Weasel GTS

I have a 91 NA the injectors are not the same right?

nope not the same 210 vs 360. You need some TT injectors... see if anyone has any good working ones they could loan you locally to break-in the motor.