hello, i'm thinking on doing a swap on my car, as i'm going for evo IV engine and wiring, and this is were if found my fist info, the evo IV dosen't have an immobilizer and coded key?

 

no immobiliser or coded key

 

thank you, so it should be just drop in and drive

 

what car you putting it in ?? yes should be

 

planing to put it in my Hyundai Tiburon RD first Gen from 1997-2001

 

Cool job

 

Wow this thread is awesome! I hope you guys are still active and can help me out. I have an Evo V RS LHD and am interested in using an Evo VIII ECU, while keeping the Evo V wiring. I also have the built in antilag (SAS) system and am wondering if the VIII ECU will be able to operate it properly. I am almost ready to get the car started and need to figure out which ECU to go with. The car came with a MOTEC but I have no experience tuning it and figured the VIII ECU would be easy to tune and easy to come by in the US.

 

An evo5/6 ecu would be easiest for you

 

Ah ok. Is there a tephra mod rom for the V/VI ECU?

 

Well I got my V running today but I have no way to tune with the current Motec.

If I go with a V/VI ECU is there a Tephra rom available for it?

 

Ceddy does a ROM for the V/VI that is similar to Tephra's ROMs.

 

succesfully swapped VIII ecu in IV
now installing slim fan and how to wire it ?
it is one speed unit, so has only 2 wires - positive and negative

so how should I connect it to oem harness' 4 wire plug ? is it safe if I join car's hi/low wires together and negative wires together and connect them to fan's two wires accordingly ?

 

You can do that, or just connect it to the low speed wires.

 

doesn't low speed relay turn off when high speed one kicks in ?

 

It stays on as far as I remember, but it is easy to double check. Having it stay on would be the safer way to do it, because if there is a failure of the high speed circuit this way the fan would still run.