Need help from the RB20 wiring guru's please!

Discuss the RB20, RB25 and RB26 series engines.
bigfootap
Posts: 104
Joined: Wed Jul 15, 2009 5:15 pm
Car: 1991 240sx coupe

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So I picked up an rb20 a while back and ended up not getting a harness with it. Well I came across this guy selling one that is supposively already wired to go into an s13 (which is what I have). I really don't know how to tell if it is wired for it or not so I was hoping you guys could help me out. Here are some pictures.

Does the harness look like it is in good condition? and ready to plug directly up to an s13? The guy that is selling it also said that it was converted by Top Hat Performance.


bigfootap
Posts: 104
Joined: Wed Jul 15, 2009 5:15 pm
Car: 1991 240sx coupe

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Anybody?

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RustspecS13
Posts: 928
Joined: Sat Sep 08, 2007 5:30 pm
Car: '74 260z and '88 300zx turbo

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You don't have pics of the 3 plugs that matter. The brown one you have a pic of matters, but we cant tell if its been cut and spliced properly.

The other two are oval plugs if they use the s13 style connector which they should if they did a good job. Just look at the write ups for pics

But if its not for a silver top, or the same series rb you have I wouldn't bother. Not only is it older, but the pin outs are different. I would just get a good harness that's made to go with your engine, it makes everything easier.

~Alex

bigfootap
Posts: 104
Joined: Wed Jul 15, 2009 5:15 pm
Car: 1991 240sx coupe

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So your saying I should just go find one that hasn't been touched and get it wired?

bardabe
Posts: 122
Joined: Fri Mar 10, 2006 3:12 pm
Car: Z32
Location: SoCal

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looks ok, Top Hat was reputable when they where around as far as i knew, I used their mounts in my Old S13, the brown plug is the under dash plug that has the Tach, Speed, Temp, Start Signals and all that stuff, install it and if there is any problems post up and let me know i can help you out.

FAST-DATSUN
Posts: 1019
Joined: Tue Oct 22, 2002 9:46 am
Contact:

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89-90 and 91-94 are different wiring.............

bigfootap
Posts: 104
Joined: Wed Jul 15, 2009 5:15 pm
Car: 1991 240sx coupe

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^^^hey I got my mounts from you!

And yes they are different but the harness is for a 1991 240 and I have a 1991 240


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