2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Diff between S4 and S5's

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Old Mar 31, 2006 | 04:22 PM
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mechman12867's Avatar
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From: Lakleand, FL
Diff between S4 and S5's

Guys:

I am planning on putting a 5SPD in my 90 Vert. I have a line on an S4 Motor to go with the 5SPD and am wondering what kind of horrible problems I am going to run into if I decide to stick the S4 Motor in as well. If there are some threads someone can point me towards, I'd appreciate it.

Thanks!
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Old Mar 31, 2006 | 05:42 PM
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From: Kiev, UKRAINE
you'd have to replace a lots of stuff if you do that... it has different wirings, mechanical OMP and other stuff different...
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Old Mar 31, 2006 | 05:45 PM
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Does anyone know if the s4 and s5 factory spoiler options where the same, or if there were different ones offered on the s5?
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Old Mar 31, 2006 | 05:48 PM
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Fuel injectors are different, lots of stuff...
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Old Mar 31, 2006 | 07:10 PM
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when you say spoiler you mean on the back of the car right? the verts didnt come with one, and i think there is a difference between S4 and S5, but its minor.

the engines have different ECUs, wireing, rotors, manifolds, injectors, OMPs, 5th/6th ports are accuated by exhaust return on S4 and by the air pump on S5. thats all i can think of off the top of my head. anyone else?
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Old Mar 31, 2006 | 09:57 PM
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OK.....Looks like I'm just going to use the 5SPD out of it then.............I can't stand this Automatic anymore.........I can't even begin to tell you all how much of a pian in the a$$ it has been.
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Old Apr 1, 2006 | 10:50 PM
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Yeah man if you ever need advise then hit me up. I've done a couple of swaps.
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