N/A ECU Coupe vs. Vert
Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
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From: Rohnert Park CA
Originally Posted by vectorminds
oh come on mark... thats not fair... and arent you using an s5 intake on your car 
And I have both parts from a S4 and S5 on the intake of my car...
Senior Member
Joined: Sep 2003
Posts: 414
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From: Fort Worth, TX
Originally Posted by ICEMARK
because gearing and fuel mileage setups are different.
Originally Posted by VECTORMINDS
because i was under the impression that they have the same gear ratio?
Originally Posted by ICEMARK
Yes the gearing in the manual tranny coupes are the same as the verts, however I am guessing that the gas mileage map is not. The verts skated the fine line of gas guzzler tax, because of the weight.
Originally Posted by ICEMARK
I am guessing that the vert ECU would probably give you slight performance gains in a coupe.
Seems like a lot of guessing. A quote you once told me.
Originally Posted by ICEMARK
Please do not post unless you know. Making up what you think is right does not cut it.
Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
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From: Rohnert Park CA
Originally Posted by stacher
Seems like a lot of guessing. A quote you once told me.
Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
Likes: 24
From: Rohnert Park CA
Originally Posted by marlaman
oh btw, i forgot to ask, would it be worth it to switch out an s4 ecu to the s5 ecu into a 87 coupe?
Matt
Matt
If you are going that far as changing ECUs (which would require a full re-wire) then you are better to save your money and go with a new stand alone haltech or the like. Even the S5 ECU using a simple 8 bit processor was pretty outdated in its day (well alone by todays standards- almost 15 years later).
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