Swapping from Spec S ECU to Spec R ECU

[- 0h -]

hi there...
I have a S15 Spec S Auto but I have converted to manual using 6spd box from Spec R....i'm wondering if I swap my factory Spec S auto ECu to Manual Spec R ECU...would it make any different in any ways??

thanks for all the answers

 

[Hypnotik]

It won't work. The Spec R is completely different. Different MAF, different injectors, coilpacks vs distributor, etc. You could swap to a manual Spec S ecu however if yours is going into limp mode. If your car runs fine with the stock ecu then I see no reason to change it.

 

[- 0h -]

oh alright...that's a good input for me..I'm saving up for Sr20 DET....so might put the Spec R ECU in later on....
cool mate...thanks

 

[spoonman]

spec s manual ECU you should be able to pick up for $30 - $40, anyone wrecking a spec s should be able to do this, if they quote you anymore then $40 they are joking

 

[- 0h -]

spec s manual ECU you should be able to pick up for $30 - $40, anyone wrecking a spec s should be able to do this, if they quote you anymore then $40 they are joking

oh alright..i will try search that on trademe bro..
on the other note....at the moment my car still runs fine with stock Auto ECU....is there a point in switching to Manual Spec S ECU for now??
as Hypnotik stated that if it runs fine, theres no reason to change it??

 

[meddler]

If you are going to change the ECU when you put in the spec R engine, why not got for something like a PFC. Alternatevely get a stock ECU with a Nistune addon board.

 

[spoonman]

oh alright..i will try search that on trademe bro..
on the other note....at the moment my car still runs fine with stock Auto ECU....is there a point in switching to Manual Spec S ECU for now??
as Hypnotik stated that if it runs fine, theres no reason to change it??

If it runs fine then i wouldn't worry about it. more importantly have you got a LSD in there yet? when i changed the single spinner out of mine made a huge difference, by the way the extra bracing on the spec r, the subframe braces are a straight bolt on for a spec s all the holes are there you just need to get them and bolt them on, the rear needs a bit more time and patience but makes it handle way better.

and as meddler said if you upgrade to the DET engine you may as well just get a better ECU anyway, just get a sec hand one off trademe and get it remapped, came across a greddy e-manage the other day was about $600.
or better still just do what i did, sold the spec s and just got a spec r, they are cheap enough now