Does anyone know a way to use AEM to follow these same safeguards to also drop boost pressure? Assuming you're using the GM boost solenoid controlled by AEM, there should be a way to do this, right?

Otherwise, this way you could seamlessly switch between pump gas or pump+alky, and not run the risk of still running such high boost when your alky is disabled.

 

You can do this 2 ways...

You can power the GM solenoid only when there is a alky signal .... Therfore when you run out of alky power is cut and you are forced to run just wg pressure..

Or you can use this alky signal to run your high boost settings and when no alky signal.. run the low boost setting.

 

Exactly right, this topic was touch on in the earlier replys of the thread.

 

thanks for the p[ost guys def helped me out alot a+++

 

wow, I gotta reads this when i have time

 

A question was raised so bump to come back alive.

 

are there two different settings with the aem boost control? i thought there was only one table?

 

there is one table but you can set Hi/Lo boost switch to operate along with the Switch #7 to turn on or off the hi boost.

 

The high boost setting parameter is just a target number .. no need to mess with tables when it sees the input signal it is looking for the aem just goes to that arget number.

 

I have a question regarding this topic. I use a mbc instead of the aem or a ebc.

Question is would i be able to use the NOS map as a safety map on an already tuned meth/pump map? In other words since I use a manual boost controller and for say the meth stopped spraying , Instead of having the Nos map for fuel enrichment and timing , use it to run a super safe set of paremeters in case of pump failure?

so if the pump went down and the AEM could recognize this , it would go to the Nos tables with retarded timing and fuel enrichment to prevent engine damage . In my setup there is no way the AEM can turn down the boost due to a mbc.

Is there any method to my madness ?????????

 

Yes you could, it can be used for an alternate map as explained here on this thread and this way has several other benifits too it. Or you can do what you are wanting by using the NOS map as a active safe gaurd to only retard ign timing and richen fueling if the pump was to fail. You would hook it up in the same way except you would use the nos map only above your alky controler turn on point. I would say alot of testing too but in theory it should work.

 

^^^^ Ok good

1 question then. I would have to activate it the oposite as you described it in your how to first post right?

In your first post you explain it to use the Nos map once the pressure switch closes and voltage is sent to the AEM correct ???

I would want it the other way in other words if the pressure switch open due to lack of pressure I would want the AEM to then revert to the Nos map wich would be a super safe map as a safegaurd ??

Am I thinking and understanding this correctly??

 

It doesn't matter, you can have the AEM trigger the Nitrous map on an open switch or a closed switch.

Don't get too crazy with the "super safe map" by the way. You don't want to just retard the timing to nothing and dump in a bunch of extra fuel. Ignition in the exhaust manifold is not a good idea either. You'll want the switch to go to a map that is good for off-meth driving rather than some arbitrary fuel overload and no spark to ignite it.

 

True right. this will be with a mbc so it would have to be enough to offset the lack of meth with just the presence of pump gas.

How about seting the fuel cut to a conservative setting on the Nos map so if it went to the Nos map from lack of meth it would tap off the fuel cut which would be obvious to the driver ???

 

That won't work. You're not dealing with two independent maps.

The nitrous map is really just fuel and ignition "modifier tables" that are active only when the ECU is in the nitrous state. No other parameters are really changed, so you can't have a separate fuel cut or ignition cut or anything like that.

If you ditch the current MBC, there are ways to change boost at the same time as you change maps. You have a few options:

1. Use the AEM to control boost, which I am told can be tricky, but very good if you can work it out ($50-120 for a solenoid).
2. Buy a multi-stage MBC like the one Buschur just released. I believe TurboXS and TurboSmart have solutions as well, but I have heard mixed reviews of the TurboXS unit.
3. Buy a high-end EBC with trigger inputs. The only two I know of like this are the Turbosmart EBoost2 (~$550) and NLR Systems AMS-1000 (~$900).