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A Question S1 And S2 Stock Ecu's

Pal

By Pal,
in Engines & Forced Induction

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Pal Veteran

Pal

Posted
Posted

i had a manual conversion done a couple of years back now but left the auto ecu in there with a safc2 piggyback. now my power levels have increased from stock(about 290hp with just about all stage one modes done), i am thinking the ecu is not the best thing to have as i seem to be very flat midrange in my power curve. i have decided to buy a manual ecu to see if it helps but i am wondering if stock s1 and s2 from r33 swappable? i have added my dyno sheet to see if anyone has any other ideas.

Eric

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MBS206 Grand Master

MBS206

Posted
Posted

I am led to beleive there is a difference between them.

Also between mine and friends S1 engines, there seems to be a difference between 93 and 94 model engines.

I have a 94, all the guys have 93s, and my ECU just runs like a dog on there engines.

paulr33 Grand Master

paulr33

Posted
Posted

the map data and chip is different between models (including the same series)

if you get the wrong model of chip the car sluggish (as matt said) and is a pig to drive

the engine works fine and runs ok, just drives like poo

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