After Market ECU's for '85 XT

H-top · Post by **H-top** » Mon May 26, 2008 2:45 pm

Is it worth it?
What is available?

foxx510 · Post by **foxx510** » Mon May 26, 2008 3:54 pm

What do you want to achieve? Stock or modified? Everyday driver?

Gannon · Post by **Gannon** » Mon May 26, 2008 5:40 pm

H-Top,.. how about you give all of us a little more info

Introduce yourself, tell us what you drive, what mods you have done to it and what you plan to do with it.

That way, we can get an idea of what would best suit your application.

twilightprotege · Post by **twilightprotege** » Thu May 29, 2008 8:28 am

even stock, an aftermarket ems is going to be good money spent. a mate of mine with a 2002 mazda protege sp20 put a microtech on his car with no other mods and went from a 16.2 1/4 mile time to a 15.5 1/4 mile time, and had better fuel economy to boot!

i'm a big fan of microtech ems's. best value for money out there imo

schultzie · Post by **schultzie** » Fri May 30, 2008 4:57 pm

im running a wolf 3dv4+ and on a standard motor with the only mod being a 3" exhaust and a dump pipe. it made 110kw at the wheels now with the intercooler and a high flowed turbo im maxing my injectors out. so with out a re tune it is making 120 comfy atw. with a tune and injectors im sure the power will come up some more ( but im doing a High comp rebuild and aming for 140/150 atw and keeping my turbo...

so yes for the older moter i think it is a good idea but at the same time have an intercooler installed and if the head gaskets are as old as the motor get them re done because when u run more boost you will most likeley blow the head gasket as well

H-top · Post by **H-top** » Mon Jun 02, 2008 9:38 pm

The vehicle is a '85 Vortex NON-Turbo with extractors and minor head work.
looking to give it more grunt. microtech make an ECU for XT's?

Cheers

Gannon · Post by **Gannon** » Mon Jun 02, 2008 10:22 pm

H-top wrote:microtech make an ECU for XT's?

In short... no.

You can buy a microtech and make it work on a vortex, but there is no 'direct replacement' plug in ecu for and EA82 engine.

Being an 85, its gonna be a 3 plug ecu so you only have to control the fuel. Something like this will do the job Apexi AFC neo piggyback ECU

With a piggyback, you still retain the factory stuff the ecu does like cold starts, idle up and closed loop mixture control.

H-top · Post by **H-top** » Tue Jun 03, 2008 6:51 pm

What kind of increases in power or economy can i expect? marginal? noticable?

Gannon · Post by **Gannon** » Tue Jun 03, 2008 8:08 pm

Marginal for both power and economy.
Generally, you will have to sacrifice one to make the other

twilightprotege · Post by **twilightprotege** » Wed Jun 04, 2008 9:29 pm

you can get a microtech (or other ems) to control timing as well as fuel

H-top · Post by **H-top** » Fri Jun 06, 2008 10:17 pm

on the ea82 the timing is controlled by the distributer.

would the piggyback ecu control the fuel with larger injectors too?
could i expect i better increase?

Gannon · Post by **Gannon** » Fri Jun 06, 2008 10:50 pm

There isnt much point adding larger injectors until you get a whole lot of air moving through the engine (ie. turbo or supercharger). For now, stick with your ecu and maybe put a different cam in to shift your powerband up a bit. Do a through service and upgrade your coil, spark leads and airbox.

H-top · Post by **H-top** » Fri Jun 06, 2008 11:14 pm

What should i do to the airbox?

Gannon · Post by **Gannon** » Sat Jun 07, 2008 9:14 am

you could remove it and put a pod filter on

H-top · Post by **H-top** » Sat Jun 07, 2008 9:56 am

how would i bypass the big air flow meter? do i NEED it it? how do i start the pod on the other side?

please, show me the way, all knowing god of the L series