http://www.cardomain.com/member_page...=391233&page=2

i decided to relocate the sucker, pics are on the webpage, anyone see anything that might cause a problem here? seems to be running just fine right now. any and all input is appreciated!

 

oh and there are no clearance issues its not rubbing against anything even if it looks like it is in the pic!

 

definately interesting.. how is it attached?

 

I HOPE YOU DO REALIZE......

Now that the KS is relocated, it will never go bad again due to Murphy's law. If you were to put it back in it's original location, it would crap out on you next week.

 

i removed the stock bolt and bought another from sears which was about 1.25 inches longer and used a 1/4 inch nut and a washer on the bolt near the top so that would act as a lil bit of a torqued bolt washer on the ks, so that i wouldtn tighten it too much... if that makes any sense? lol

 

but at least IF it ever does again it will be an easy swap!

 

Hey, I just checked out your cardomain site. Nice color, real clean. Say, how did you get those fugly stripes off? There was a thread ahile ago on it but I can't find it. Thanks

 

thanx man, i used a hair dryer and my finger nails, its tedious when the pin stripes dont feel like coming off, but all in all it works well

 

nissan nightmare...thats the last place they wanted it...an easy to change location which would prevent them from making hundreds on the labor.

 

took me like 45 seconds to decide to put tha sucker there, it was a no brainer to me...

 

Kind of close to the injector... don't know if the ticking could be mistaken for knock.

 

it feels like all the power is back now, so i dont think that it is, not now at least... even with the resistor bypass, power was not at full i can say that pretty confidently now

 

The reason it's on the block is so the piezoelectric sensor can better "hear" the high frequency pings that the engine generates from the combustion chambers. Now that you moved it to the intake manifold, it would hear the ping as well. I bet the car feels powerfull but I also bet it won't be able to hear detonation as well also. Be more diligent in what gas you use and if you hear some detonation back off.

 

i always use 94, even with the resistor mod i dont think i heard any detonation or pinging, but i dont really know what to listen for, would i definately be able to tell if it was knocking or pinging? or would it be something only a trained ear could hear?

 

In theory the KS can detect knock that we can't hear. Personally since it's actually possible to get at the KS w/o taking off the intake manifold, I'd put it there. Dunno. Whatever way makes you car run better I guess. I think since you can get 94 octane, you in pretty good hands

 

problem was i could not get the damn bolt loose on the ks in its original spot, my stock one is still there, so until i can get it off i think this one is staying where it is, any other spots that might be better? besides the stock location? thanx for the help Jeff92se!

 

can someone clue me in on what ping and knock sounds like? i dont think i'v ever heard it, is it noticeable? also in some cars the ks is located on the firewall, not even on the block, couldnt that work for us, and since i have mine closer to the block than the firewall, wouldnt it do a good job in its current new location?

 

anyone? now im curious and paranoid about every single sound i hear lol

 

i re-located it once again to the firewall, where alot of u use that one hole to route ur stereo amplifiers power wire, i'll get pics soon, what do u all think of that?

 

Putting it on the firewall doesn't make sense to me. The whole idea of it being in the middle of all the cylinders is so it can "hear" knock and ping from each cylinder. Nissan Performance Mag did this to gain more horsepower by relocating the sensor to the firewall, so if they did it, I guess you can too.

http://www.nissanperformancemag.com/.../knock_sensor/

 

it comes stock on the firewall on some vehicles as well

 

the reason they moved the spec-v knock sensor is because it's hyper-sensitive. It thinks it hears knock even when there isn't. Also, they didn't do it for more horsepower. They did it to make the car more consistant.

nismos14:
I would not leave the KS on the firewall. Move it back to the engine.
The maxima KS is designed for working in a specific area. Changing its location will reduce its ability to detect knock/ping.

Not every KS is created equal.

 

when i can finally get the stock bolt off i'll put it in the stock location, but for now this seems to be working okay thanx for all the help everyone

 

Hmm...I've got to do some work this weekend...maybe I'll rig up a switch to toggle between the resistor mod and the real KS. They said in that article that it might be a good idea to have the real KS in place for racing...having a switch would be handy for that. Putting the KS on the firewall is, in effect, like having no KS at all.

 

anyone with any suggestions on how to get the damn bolt out, i tried a swivel socket with a long extension, no luck

 

Is the bolt rounded off?

 

I used a 3/8 rachet about 6" long. To brake the bolt loose I had to use a pry bar.

 

I am going to tell you how I removed the KS. But you must promise not to laugh at my low tech method.

I used a 12mm socket and a regular Craftman ratchet 3/8" drive. After putting the socket on the KS bolt, I position the ratchet handle at the middle of the block. You will see a round hole on the block just under the handle. The hole's openning is about the size of the little finger and it is about 1/2" deep. I put in a flat blade screw driver and used it as a lever to push against the ratchet handle. As the handle moves, I put in a second screw driver to take up the slack. (Note: This would be a good location for the KS if you can thread the hole). After the bolt is loosen up, you can use a 12mm flex head and a long extension bar (14") to get it out.

 

Im really consideringrelocating the KS, this seems to be a great place to have it, but yet again, I agree with what others said, will it still perform the same as if it was in its stock location? Will it detect the pinging/knocking exactly the same if it was relocated? Thats the most important question.

 

d1no i dont think it detects the pings and knocks as well, because i dont believe its as sensitive as other cars ks's BUT i have not heard any knocking or pinging since i put it here, BUT then again i dont know what knocking and pinging sounds like also, i never put less than 94 octane in... so im not sure that i'd be knocking or pinging too bad even if it were to happen, im just worried about when i am at WOT

 

hmm..well here in florida, i use nothing bu 93 octane..why did you relocate the KS by the way? Im worried cause I am actually getting a code, but only a KS code (the ghost code)...

 

my stock ks is still stuck in there, i have had a real hard time getting the bolt out, so tommorow im gonna give it one last hard try, and hope i can get it out, and if not gonna have to take it to get done some wheres, so i relocated the new KS

 

relocating KS is too much of a hasssle for me.
, beside the engine can't sense knock. why don't just replace KS with 500 k ohm resistor and done with it?

 

i did replace it but its the same story, cuz the resistor does not detect knock, so then the ecu will not retard timing it will run full timing at WOT even when it should retard it using the signal from the ks

 

resistors just act as a KS but wont fullfill the important functions of a real KS... if something bad is happening to your engine that will cause the knock/ping, teh resistors wont pick it up, and your ecu will think everything is fine, when its really not. Thats why I only used the resistors for a week, I like the power gain, but was afraid of long term effects.

 

That's why I want the switch

 

Your lucky I saw some **** on the can last night Well, I saw both but.......hehe

I was reading a SCC mag with the F&F cars on the cover. In there was an article about their project Sentra(35 more wheel hp with bolt ons) In that article they mention that this SER was the most inconsistent car in regards to dyno runs. They figured out it was an overly sensitive KS. So what they did is remove it, wrap it with a towel and mount it on the firewall or something. They had to add a ground wire but no biggie. They said even with 91 octane, it ran fine thoughout their dyno runs and they never heard any knock(there is knock that you can't hear but I digress). In conclusion, I think you are okay with your relocation. Especially with the 94 octane you run. Just thought you would want to know what I found. (other than some stinky doo-doos)

 

Jeff, you nasty!

 

I dunno. Removing the KS the "hard" way by taking of the intake manifold(s) and fuel rail may take 5 hours if you're doing it for the first time.

For that little amount of time, I wouldn't take a chance on damaging the engine.

 

hmm i'd have to agree but today it was really really hot out and i could tell the ecu was retarding a bit because i wasn't getting the same power, but this morning when it was cool i was getting really good power, jeff i love the skillz u possess just by sitting on the can, thanx for not droppin the doo doo on uz, but supplying that great info i think im gonna take some octane booster with me on the trip to montreal in case i can't get 94 when i have to fill up, what do u guys think?