i have an 87 rx7 TII. i am going to order a garrett gt3574 turbo and a greddy front mount intercooler. im not sure what engine management system to get. i am on a tight budget and i am stationed overseas, so i dont have access to any specialty tools or much help. i am looking for price and ease of installation/use.
any help is greatly appreciated.
kevin

 

well being on a tight budget definitely isn't going to help...figure $800-$1000 for the unit, plus installation and tuning if you can't do it yourself.

most people go with haltech or microtech.

 

In all honesty, I would start by looking for a tunner, as you will need one to tune the stand alone. Once you find one, go with what he recomends...

With that said, installing a stand alone is fairly easy, specially with all of the help found on this forum. The easiest one to install has to be the power fc by apexi, and banzai racing sells the adpater so that you can use a power fc for a FD3S (Twin Turbo RX-7). Check the adapter at:
http://www.banzai-racing.com/product...ss_adapter.htm

One thing is for sure, and that is that the power fc will not be the cheapest route

 

Best solution is to wait until you have more money.

 

wow going all out huh, the GT3574 is pretty wild and non-bb too. Your probably going to have to go with 1000cc injectors to push that turbo. Any major standalone will help you control your fuel needs, id recommend Microtech or Haltech for your application. But based on your situation theres no real easy way to do what you want to do you. If you try to cut corners on cost and time spent you will just end up blowing up your engine and wasting even more time.

 

I have a Haltech and I wouldn't buy another. They have low resolution, old software, and something ridiculous like 1/3 of the costumer base are rotary engine users. That means they have very small support compared to more widely used EMS like AEM. Also, Haltech is based out of Australia. I recommend AEM because although you pay a little more, they're have large help forums, better software with regular updates, and better costumer support. Haltech seems to lag AEM technologically by like 10 years.

I used an AEM on another project and if I had the time to swap out my RX-7's EMS I would sell my Haltech and get an AEM.

Don't forget to include a decent WB02 in your budget. An electronic EGT that has an output for data logging voltage would be nice for tuning too.

 

ok...1/3 of haltech's customer base is from rotary engine owners...You think that AEM has a larger rotary engine base? No way. What specifically makes the AEM better than say an E8 or E11? I don't think I've ever even seen someone with an AEM unit on an FC before. There is way more support for Haltech when it comes to rotaries.

 

Are you comparing an E6K to an AEM?

When the E6K came out, AEM was just an intake manufacturer, if that

If we compare apples to apples, I don't think one is better then the other, but the AEM has less rotary support and is more expensive than the haltech.

 

thanks for all the help guys, i think the microtech is my best option. my friend at racing beat has refferred me to a tuner here in germany (im in the air force). im not going to be running a whole lot of boost yet, not til i can pull the motor and port it and other major mods. probably only gonna be running between 12 and 16 lbs of boost at most.

 

I have worked on a number of Supras running AEM, they take a long time to sync up for start up. Some of the really modified cars would even flood out before the ECU would sync up for start up. Don't know if that is a problem specific to Supras or not, but if it's just a characteristic of the unit, I could see that being a problem for rotaries.

 

Only buy a Microtech if you don't need features like the ability to save maps to disk, closed loop and 3D timing tables. Other then that the Microtech is fine but could really use more resolution.

 

Motec has all the resolution you want. Even the older m4... They have closed loop, telemetry and a rotary specific ecu. I know it isn't as popular here, but they are on many race curcuits. Not to mention they are 500 times for helpful than aem. Aem has the worst customer service. Try getting help with one of their wideband units, or ignition boxes... Much less a freaking ecu!

 

Just because "everyone on the internet with a rotary race car" has a Haltech or Microtech doesnt mean it's the best option. Do you homework, take your time, and make you're own decision. You know your options and capabilities better then we do...if you're on a budget why not run the stock ecu with a fuel controller piggyback?

 

Megasquirt is a cheap DIY'r. you can get the box and harness for under $500...

 

or just go with a RTek...

 

Damn you beat me to it.

The rtek has 720x4 presets, but check out the rtek enging management sub-forum here, there are people using larger injectors.