Stinger thread....

[Clint]

I set the anti lag to drag mode then set the following settings:
Turn On Above: 4500RPM
Turn On Above TPS: 5%
Turn off Above KPA: 200KPa
Ignition Miss Fire Seq: 2
fuel trim % to 101.60%
Ignition trim % to -102.40%

yet i cant get the damned thing to build more than .8PSI of boost.. I even tried flipping the fuel trim % and ign trim % to complete opposites and it didnt even work then.

 

[suprahero]

Be careful with it until someone comes in and helps you out. I'd hate to see you mess something up. Good luck.

 

[gravesdu_99]

I'll proaly try working with it when I get back home, I have to wait until it's really warm before I drive and then if it's under a load like headlights on or Hydro fan kicks on it wants to go dead like at a red light or just in neutral sitting still.

Does anybody else have a probably like this. My car doesn't try to die, but watching the a/f ratio I can see it change a decent amount. Just wounding if it's normal or what is normally done to fix this problem.

 

[apexi287]

I have a question on the injector impedance, does it matter what you run since the standalone has the option for either high or low, or will a resistor still need to be used. I have 12.2ohm high impedance injectors from DM the top mount ones.

Just wondering if I'll be able to drop these in with no issue.

 

[gravesdu_99]

I have a question on the injector impedance, does it matter what you run since the standalone has the option for either high or low, or will a resistor still need to be used. I have 12.2ohm high impedance injectors from DM the top mount ones.

Just wondering if I'll be able to drop these in with no issue.

It all depends on your application. I see that aaron has some that drop into a 7mgte fuel rail if thats what you using then yes. If not then you will need to buy the rail from him also, which wouldn't be a bad thing to do anyways.

For the impedance you can use an ohm meter and get a diagram from the stinger help manual. Test the impedance going into the stinger and then you will know for sure. Or with the 1jz the injectors are wired in paralle so you would set it for half of the injector impedance.

 

[apexi287]

It all depends on your application. I see that aaron has some that drop into a 7mgte fuel rail if thats what you using then yes. If not then you will need to buy the rail from him also, which wouldn't be a bad thing to do anyways.

For the impedance you can use an ohm meter and get a diagram from the stinger help manual. Test the impedance going into the stinger and then you will know for sure. Or with the 1jz the injectors are wired in paralle so you would set it for half of the injector impedance.

Right its for a 1J with top feed injectors with the correct rail, that is the rail that i do have. The impedance was already checked and they all read 12.2 ohms, so when I wire the new injectors in your telling me I will then set the injector ohms to 6 instead of 10-16? There is no 6ohm selection though only 4.5?

 

[jmcboost]

Just curious if anyone knows some technical info on how the 7MGTE CPS and the stinger communicate? For example :

1. What does each wire going from the CPS to the Stinger do?

2. How does this translate into how the Stinger tells the ignitor when to fire the coils.

3. How does this tell the Stinger when to fire the injectors?

My issue right now is that I have a 2JZGE-T with 7M electronics and I am getting spark but I'm not getting an injector pulse.


EDIT!!!! It's running now! I just needed to swap around the coil pack harness to get them firing in the right order.

 

[gravesdu_99]

Right its for a 1J with top feed injectors with the correct rail, that is the rail that i do have. The impedance was already checked and they all read 12.2 ohms, so when I wire the new injectors in your telling me I will then set the injector ohms to 6 instead of 10-16? There is no 6ohm selection though only 4.5?

Yes I would go with 4.5 ohms. If you havn't wired them in yet just cut the old injector clips off and wire in the new ones the same way. Then with your ohm meter got to the stinger ecu and measure the impedance at the end of the wiring harness that plugs into the stinger. This will give you what the ecu is reading for sure.

 

[apexi287]

Yes I would go with 4.5 ohms. If you havn't wired them in yet just cut the old injector clips off and wire in the new ones the same way. Then with your ohm meter got to the stinger ecu and measure the impedance at the end of the wiring harness that plugs into the stinger. This will give you what the ecu is reading for sure.

Ok cool i guess that's the main part i was unsure of is what the stinger would see, because after splicing them in i didn't know if stinger would see 12.2 or close to half, but after looking at the diagrams it makes more sense, thanks.

 

[Viggs]

Which way do I wire up a 1jz igniter? Do I tie the coils together for wasted spark before or after the igniter?
Before:

After:

 

[10secdream]

To set up the stinger for wasted spark you have to do it going from the ECU output to the ignitor. Leave the wiring from the ignitor to the coils as it is.

 

[SHIZNT]

Bumping up an old thread!

I recently purchased a MA70 Supra (7M-GTE) running an EMS Stinger 4424 v2 off a fellow member of the forums.. I sent the car off to be tuned but myself and the tuner have been left stumped...

Before I purchased the car the injectors we're upgraded from 440cc injectors to 750cc injectors and fuel pump changed to a Bosch 044...

The tuner trimmed a bit of fuel off the map to get it running better but car is idling at 2500rpm and spluttering under load...

From what I've read I need to screw the idle control screw all the way out and adjust the fuel & timing until the car idles correctly. Also we are having issues with no TPS signal in the Software interface.. Could this be an issue with incorrect software version, can you use the stock TPS with the 4424? or has my TPS seen better days?..

Anyone who has experience with EMS Stingers, 7M-GTE's and can shed some light on my issues.. Your help would be greatly appreciated!

 

[10secdream]

I cant really give you an exact answer relating to the 7m but I can speak from a 1JZ perspective. The TPS needs to be properly calibrated so make sure that is in order. Other than that just make sure the wires are connected properly and it should work just fine.

All I did for the idle was adjust the idle screw to the desired RPM and then adjusted the fuel on the map. From there on I did light load/cruising and tuned WOT.

If you have more questions just PM me.

 

[hottscennessey]

Bumping up an old thread!

I recently purchased a MA70 Supra (7M-GTE) running an EMS Stinger 4424 v2 off a fellow member of the forums.. I sent the car off to be tuned but myself and the tuner have been left stumped...

Before I purchased the car the injectors we're upgraded from 440cc injectors to 750cc injectors and fuel pump changed to a Bosch 044...

The tuner trimmed a bit of fuel off the map to get it running better but car is idling at 2500rpm and spluttering under load...

From what I've read I need to screw the idle control screw all the way out and adjust the fuel & timing until the car idles correctly. Also we are having issues with no TPS signal in the Software interface.. Could this be an issue with incorrect software version, can you use the stock TPS with the 4424? or has my TPS seen better days?..

Anyone who has experience with EMS Stingers, 7M-GTE's and can shed some light on my issues.. Your help would be greatly appreciated!

1) plug your IACV hose. Sounds like it's sucking in air from the IACV, which it will since it's not wired up. (software is not compaitible with stepper motor IACV).

2) Do as 10secdream said, make sure your TPS is calibrated. If it's not, get a new tuner. This is BASIC, ANY tuner who knows anything would do that before anything else
a) yes the stock TPS IS compatible.
b) Check that the TPS has a ground
c) if the TPS has a ground, check continuity of other (2) wires to ECU with a multimeter.

FYI the TPS is not needed, therefore unless your tuners got it set up funny, it's not causing the spudder.

I'm 90% sure, your problem is with the tuner.

 

[TurboStreetCar]

Anyone play with the auxiliary inputs yet? Im having trouble with the translation table.

 

[10secdream]

What input are you trying to set up?

 

[Clint]

Im still trying to setup my 2step/anti lag...

 

[10secdream]

What are you trying to figure out about it? One thing I really don't like about it is that you can easily over-rev the engine.

 

[suprahero]

You can't over rev a 1jz........... they just keep on revving........JK

I"m going to be trying to get mine set up once I get my car painted and everything put back together. I will need some help on this as well Mr. Ten seconds. Dont' go anywhere. Stay right here in this thread until I get back to you............:biglaugh:

 

[10secdream]

Don't worry I will be right here. Now I am not trying to say the Stinger is a bad ems but lets face it the AEM, Haltec, Motec, Vipec ect are much better suited for this application. If I did drag race all the time I would have switched ECU's but it does everything I need at the moment and its easy to use. I have played with the antilag a lot and I could never get it just right. For instance I could get it to build 10 psi but as soon as I let off the rpms would shoot to 7k and it made me very uneasy. I would not recommend with just playing with settings because you can EASILY overrev your motor.

Plus it would be nice if it was speed activated then it would disable automaticially and not with a clutch or handheld switch. I have since just used 2 step for ease of convience. Yes it is not as good as anti-lag but a long short but I feel more comfortable with it.

Someone chime in if they found a way to get the Stinger to work antilag without too many headaches.