Bumping this thread to ask a question:
Does anyone know if the Kouki S13 blacktop used different sensors than the other S13 blacktops? Specifically, the oxygen sensor? When I look here (http://www.nissansilvia.com/fo...00572), it says the kouki blacktop uses a different water temp sensor, but doesn't specifically mention the O2 sensor. The thing is, I just installed a new turbo elbow in my kouki blacktop SR and it's threaded for the fat-type O2 sensor, and the O2 sensor I pulled out of the stock elbow is a skinny type. All the information I'm finding says that ALL blacktop SRs use the fat-type O2 sensor.
Anyone?
S13 Red Top Vs. S13 Black Top - The differences
Re: (Project240)
yea all blacktop sr20 use fat type o2 sensor. If you need one, order one for a 95 300zx TT. I found the best price at oxygensensors.com
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Project240
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Re: (garagelu)
Why would my blacktop have a skinny-type O2 sensor in it though? Maybe the person who did the swap used a redtop elbow and sensor? Would there be any other explanation?
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homeslicej2
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Re: (Project240)
^that, or someone has put a blacktop valve cover on your SR.
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Hijacker
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'94 F-150 - Location: Fredericksburg, VA
Re: (Project240)
Just to stop propegation of misinformationProject240 wrote:When I look here (http://www.nissansilvia.com/fo...00572), it says the kouki blacktop uses a different water temp sensor, but doesn't specifically mention the O2 sensor.
The site linked states that the water temp sensor is different on the Type X 180sx
[qoute]...also in the update model 180sx's (type X 1996-98) there was a different ECU and some different sensors (water temp sensor). [/quote]
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Project240
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Re: (tenkawa_akito)
I thought that's what I was saying...maybe my definition of "kouki blacktop" is incorrecttenkawa_akito wrote:Just to stop propegation of misinformation
The site linked states that the water temp sensor is different on the Type X 180sx
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Project240
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Re: (tenkawa_akito)
So apparently the J4 ECU won't work on earlier SR20s....I have a #62 ECU (redtop) running my 97-98 blacktop (which should have a J4). Exactly how many problems should I expect this to cause me, if any?
and edit: I was thinking it might be nice to find a J4 ECU and run that, since it has different/slightly better fuel mapping, but since it has a different pinout, it probably wouldn't work in my car at all. Which probably means I'm running a redtop ECU, a redtop (or early blacktop) wiring harness, and a 97-98 S13 blacktop engine. So it would be entirely not worth the trouble to try converting the harness and whatnot to run a J4 ECU.
So the easiest thing would be to replace the sensors (like O2 and water temp) to be compatible with my #62 ECU. Anyone able to tell me if there any other sensors I should be replacing, besides those 2?
Modified by Project240 at 11:45 PM 9/24/2007
and edit: I was thinking it might be nice to find a J4 ECU and run that, since it has different/slightly better fuel mapping, but since it has a different pinout, it probably wouldn't work in my car at all. Which probably means I'm running a redtop ECU, a redtop (or early blacktop) wiring harness, and a 97-98 S13 blacktop engine. So it would be entirely not worth the trouble to try converting the harness and whatnot to run a J4 ECU.
So the easiest thing would be to replace the sensors (like O2 and water temp) to be compatible with my #62 ECU. Anyone able to tell me if there any other sensors I should be replacing, besides those 2?
Modified by Project240 at 11:45 PM 9/24/2007
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SpeedRacer1
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How do you know for sure that you had a late model blacktop and not an early model one?
J4 ECU's will run redtops and early model blacktops, but they will run aweful. They only fire the 1st cylinder.
Those 2 sensors are pretty much the only two you need to change. The temp sensor is the 2 wire one that should be part number 22630-44B20. Also the single wire temp sensor in the later model engine is for an S14 so unless the engine is in an S14 you should have changed that to get the right signal for the temp gauge.
J4 ECU's will run redtops and early model blacktops, but they will run aweful. They only fire the 1st cylinder.
Those 2 sensors are pretty much the only two you need to change. The temp sensor is the 2 wire one that should be part number 22630-44B20. Also the single wire temp sensor in the later model engine is for an S14 so unless the engine is in an S14 you should have changed that to get the right signal for the temp gauge.
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Project240
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Re: (SpeedRacer1)
I guess I'm not entirely certain that I have a 97-98 blacktop, beyond what I was told by the previous owner. He had bought the car from a shop, it had a blown redtop SR swap in it. So he pulled out the blown redtop, bought a fresh 97-98 blacktop, and swapped it in. I haven't examined the block casting to make absolutely sure, but since the seller seemed very knowledgeable and trustworthy, I'm guessing it's a real 97-98 blacktop.
I'm just gonna change those 2 sensors, hopefully that'll solve things.
I'm just gonna change those 2 sensors, hopefully that'll solve things.
Re: (Project240)
OK lets get this straigt red top and black top S13 sr's are the same?!?And also regarding the o2 type...the blacktop s13 has fatty while the red is skinny right? Well some turbo elbows, i.e. greddy say it uses a fatty and I have a redtop (skinny). What do I do about that? Are the sensore plug and play interchangeable?
Thanks!
Thanks!
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Project240
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Re: (nwmrkt)
Redtop and early S13 (not S14) blacktop motors are pretty much the same. S13 type X blacktop motors (late, between ~97 and 98) used a different ECU pinout in the wiring harness, different fuel mapping, and a couple of different sensors (water temp and O2). You can't run a J4 ECU (S13 type X) on a non-S13TypeX wiring harness without re-wiring. I'm guessing that this also means you can't run a non-J4 ECU on an S13 Type X wiring harness without the same rewiring.
With the O2 sensor, I'm not sure how compatible the fatty sensor is with a redtop motor/ECU. It'll still run but probably won't run as well as it should (I'm running a fatty O2 on a redtop ECU and I'm getting some backfiring and bogging, although that could be due to other issues I'm having at the moment).
You can run your skinny redtop sensor in the aftermarket elbow with an adapter bolt, which you can get from Megan Racing. It's basically an 18mmx1.5 cap bolt with a 12mmx1.5 thread pattern drilled and tapped into it. They don't have the part available online, but if you call them and explain what you need, they'll take care of you. 626-581-0988. $15 shipped and you're all set. I ordered mine Tuesday, should be in the mail probably tomorrow
With the O2 sensor, I'm not sure how compatible the fatty sensor is with a redtop motor/ECU. It'll still run but probably won't run as well as it should (I'm running a fatty O2 on a redtop ECU and I'm getting some backfiring and bogging, although that could be due to other issues I'm having at the moment).
You can run your skinny redtop sensor in the aftermarket elbow with an adapter bolt, which you can get from Megan Racing. It's basically an 18mmx1.5 cap bolt with a 12mmx1.5 thread pattern drilled and tapped into it. They don't have the part available online, but if you call them and explain what you need, they'll take care of you. 626-581-0988. $15 shipped and you're all set. I ordered mine Tuesday, should be in the mail probably tomorrow
Re: (zrowkewl)
no not possible. The KA and Sr bell housing are different. What you can do is swap the internals from the KA into the SR bellhousing.
Re: (dustyk)
from wut i heard it was the same gear box but a 6th gear was just crammed in itdustyk wrote:
it's not a Lie, the S15 6 speed is weaker than the SR 5 speed. Ive had friends in japan that broke the 6 speed and switch to the older 5 speeds.
Re: S13 Red Top Vs. S13 Black Top - The differences (Onizuka
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Last edited by wzntha on Thu Sep 20, 2012 3:08 am, edited 1 time in total.
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SpeedRacer1
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SpeedRacer1
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Re: (wzntha)
Really the only thing that matters when you pay extra fro the blacktop is the pistons. All blacktops should have the 54c pistons. They have a better bottom end than the redtop. so o2 sensor really doesnt matter. The seller could have swapped it out. You never know. And even the later redtops came with fins so someone could have sold you a later redtop with a black valve cover. You really wont know till you take the head off. Or you can look at the oil pickup.
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SpeedRacer1
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SpeedRacer1
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Re: (SpeedRacer1)
sorry for threadjack. SpeedRacer1, i got some questions about the r33 wheels on your s13, but how can i contact you (your email's hidden)? If you don't mind PM me at [email protected]. Thanks.
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