s14 rb20 wiring is kicking my arse!
s14 rb20 wiring is kicking my arse!
well ive got most of the wiring done for the harness except the w/b wire on the rb side.while wulfgang's guide was on par for all the other wires it was a bit vague as what to do with this one, not too sure what all the little notes ment.also as for grounds i have 2 black wires comming from the wiper motor? and the cruise control, i assume they are grounds and i should just tie them into the black wires comming off of the p and q plugs and put them on a ground correct?anyone who has done this please chime in as i can wire a s13 in minutes and ive been at this for hours playing with harnesses.
Re: s14 rb20 wiring is kicking my arse! (Carl H)
What I did with my w/b wire was put it together with my w/purple wire and got it working fine.. as far as the wipers yes that little box that controls the timing of the intermitent swipe has to be grounded and the wiper motor also has to be grounded that should be it. as far as the cruise control I had mine installed on the car still but never did hook it up but I think grounding it should be the trick since none of the wires for it were cut.Carl H wrote:well ive got most of the wiring done for the harness except the w/b wire on the rb side.while wulfgang's guide was on par for all the other wires it was a bit vague as what to do with this one, not too sure what all the little notes ment.also as for grounds i have 2 black wires comming from the wiper motor? and the cruise control, i assume they are grounds and i should just tie them into the black wires comming off of the p and q plugs and put them on a ground correct?anyone who has done this please chime in as i can wire a s13 in minutes and ive been at this for hours playing with harnesses.
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goofynick6
- Posts: 1216
- Joined: Thu Feb 05, 2004 9:58 am
- Car: 1995 S14.5 RB20DET
Re: (Wulfgang)
I'll look, I'm currently using a KA tb since my RB one had the linkage bent a little, but if it's usable I'll send it to you; or maybe I can pull the cruise part off my ka tb? I'll check into it this week.Wulfgang wrote:If any of you guys have the cruise control throttle linkage on the RB20 but do not use your cruise control, I would gladly trade my TB + cash for your cruise control TB.
Nick
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goofynick6
- Posts: 1216
- Joined: Thu Feb 05, 2004 9:58 am
- Car: 1995 S14.5 RB20DET
Re: (goofynick6)
Goofy, what about maybe installing a larger TB, such as a 70mm 3.5L Pathfinder TB or an 80mm Q45 TB? Would that work for the RB swap? All you would need is an adapter plate, which can be made at a machine shop, given the proper specs and all. Just an idea if you really want cruise. And hell, maybe you would gain a few HP from the use of a larger TB. This was a common thing done on the Maximas. The Maxima has a 60mm TB, and we all used the Pathfinder 3.5L TB, with the use of an adapter plate. This generally yeilded about 3-7 HP gain with NA, and about 6-10HP gain with Forced Induction.
Just a thought for you.
BTW, sorry for this being off topic Carl.
Just a thought for you.
BTW, sorry for this being off topic Carl.
Ah, I thought you guys had cruise. Well, I've done some research and wasted some money trying to make cruise work. Here's what I've found:
KA TB won't work due to obvious reasons (it's cable is mounted on the opposite side and throat is too small).
The TB from a 92-93 Pathfinder (auto with cruise) is a direct fit except for some coolant line mods. However, it's throat is also too small, and swapping the cruise related parts to the RB TB does not work because the shaft is a different length and configuration. If you could fab a new shaft, it would probably work. But that's a lot of work just to get cruise control.
And this: I've looked all over the internet for pics of RB20DETs from GTS-Ts and I have yet to find one with cruise. However, it seems that ALL Cefiros with RB20DET had cruise (which must be why our TB cable brackets have that extra slot). I am not sure if the throat diameter is the same size (why wouldn't it be?), but maybe I'll hit up Venus and see if they have anything lying around.
Yeah, that adapter plate would be a good idea, but there is not really much room if you use the stock intake piping. There's just a short, maybe 4", piece of rubber hose connecting the TB to the intake pipe.
Again, sorry for hijacking the thread.
KA TB won't work due to obvious reasons (it's cable is mounted on the opposite side and throat is too small).
The TB from a 92-93 Pathfinder (auto with cruise) is a direct fit except for some coolant line mods. However, it's throat is also too small, and swapping the cruise related parts to the RB TB does not work because the shaft is a different length and configuration. If you could fab a new shaft, it would probably work. But that's a lot of work just to get cruise control.
And this: I've looked all over the internet for pics of RB20DETs from GTS-Ts and I have yet to find one with cruise. However, it seems that ALL Cefiros with RB20DET had cruise (which must be why our TB cable brackets have that extra slot). I am not sure if the throat diameter is the same size (why wouldn't it be?), but maybe I'll hit up Venus and see if they have anything lying around.
Yeah, that adapter plate would be a good idea, but there is not really much room if you use the stock intake piping. There's just a short, maybe 4", piece of rubber hose connecting the TB to the intake pipe.
Again, sorry for hijacking the thread.
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goofynick6
- Posts: 1216
- Joined: Thu Feb 05, 2004 9:58 am
- Car: 1995 S14.5 RB20DET
Re: (Wulfgang)
Well, the good thing is that the adapter plate that we used on our Maximas to use the larger 2001+ Pathfinder 3.5L TB was only about 3/4"-1" thick at most. So, you do have some play.Wulfgang wrote:Yeah, that adapter plate would be a good idea, but there is not really much room if you use the stock intake piping. There's just a short, maybe 4", piece of rubber hose connecting the TB to the intake pipe.