03-04's dont have em , and ours pulls timing for no reason so i just tuned em out(cept @ idle)
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Knock sensors (Good/important information)
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help me out 2001asp what was the difference in peak HP from the runs with the knocks on and the last one with it off??
Cool thanks Jamie so your thinking timing was getting pulled out by the knocks during those 12.70 runs? How much ET did you shave by turning them off? 12.70 to ???
That is EXACTLY what I wanted to hear OzzDOA, thanks!!
It looks about 25tq and about 15-20hp peak to peak. If you run with the knock sensors off, you run the risk of a bad tank of gas and possible boom goes the Dynamite..... Be careful and have your tuner make sure the tune is set to withstand a bad tank of gas if it should happen.:beer:
What are some characteristics of having the timing being pulled as the engine nears redline under boost with a centri? Does the timing have any effect on the redline, boost (even though it's a centri)?
I have a very very conservative tune that came with the car. I'm pretty sure that this tune is too conservative and pulls way too much timing than necessary in the higher RPM's under boost.
I guess I'll just have to take it to the tuner and see what they say.
Homer
I have a very very conservative tune that came with the car. I'm pretty sure that this tune is too conservative and pulls way too much timing than necessary in the higher RPM's under boost.
I guess I'll just have to take it to the tuner and see what they say.
Homer
DAMM that's a HUGE Difference, I'm gonna make sure my tuner turns it off when I get a revision. From what I've read 93 Octane with 26 degrees of spark advance sounds like the ticket!! :thumbsup:
I bet lots of us New Edge guys are getting timing pulled cause of the knocks and don't even know it?? I need to dig deeper into this and find out Ricks tuning procedure. I noticed when I played back my newest datalog it looks like timing is being pulled, scrolling through the TP mode at WOT it'll go from 24 to the mid teens abruptly and it'll stay that way for a couple seconds till it starts to build up higher again?
Shit, that is ALOT of HP being lost by the Knock sensors.
Since the 03-04 Cobras come without knock sensors, I'm sure we're safe with turning them off.
Does anyone know the differences on KS between the Machs and our motors? If the Machs have a lowered sensitivity on them, it could explain the differences they get with mods.
Perhaps our KS are set too high? :nonono:
No oil leakage, they're just raised bosses with threads in them. Just remove the single bolt that sucks them up tight to the block and that's it. Wrap them up with some padding and electrical tape. Make sure if you use some kind of cotton rag you completely wrap it with electrical tape. Not like it gets hot enough to start a rag on fire but just be safe, it's good policy.
Brutal I know the car was pulling timing because I was on the car hard and all it would run was some 70 somethings that night in cool air. After getting the tune fixed with the sensors off like they were off when I had my predator in the car the car ran some 60's in hot air and I honestly was'nt on the car near as hard. I just wanted to make sure it was ok in the tune, I had a half shaft popping so I was'nt trying to really get after it off the line and consequently was bogging the hell out of the car. I was very pleased with the passes looking at the increments, knowing how much the car bogged.
Jamie R.
Jamie R.
Thanks a lot, sounds like that will be my next project. I just found out that when they put my motor in, being that it still uses the 97 harness on the 01 motor my knock sensors aren't even plugged up. Does anyone know of which wire to splice to which one, or if there is three wires or something crazy if there is any way of doing this? Thanks a lot I really appreciate the info.
Hey Jamie R or OzzDOA have you ever tweaked your timing to the point you actually heard your cars pinging when you had the knocks turned off? I've never encountered it and my spark plugs don't show signs of detonation so it's pretty obvious the sensors are pulling timing and I DON'T WANT THAT! And as far as making them less sensitive F that, if there's a chance they'll kick in by vibration or other outside factors not related to actual detonation why cost yourself potential peak power? 03-04's don't have em and seem to run FINE!
You know how we did it back in the day with our Fox Bodys, turn the distributor till it pings then back it off a hair and boom your done, if it could only be so easy nowadays, haha!!
You know how we did it back in the day with our Fox Bodys, turn the distributor till it pings then back it off a hair and boom your done, if it could only be so easy nowadays, haha!!
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I just got my tune today and i told my tuner to turn the knock sensors off , the car runs awsome without them!
Another satisfied customer of the "NO Knocks":rockon:
Do you know what your tuner set spark advance at? 24-26?
No im not sure what he put it at, as soon as i figure out how to datalog my tune ill tell you guys whats it set at.
i redneck rigged my knock sensors today...since my 97 harness does not plug up to my 01 knock sensors i just simply spliced them...then i moved them from under the valley to where they are easily accessible and wrapped them up in swimming pool noodles foam that i stole out of my dads pool...just got a little piece off and they slid right in...then i wrapped them in about a mile of electrical tape and zip tied them to the fire wall where the strut tower brace holes are...car seems to run way better since before they weren't even plugged up
Nice! :rockon:
lol thanks...sometimes being broke is not always a bad thing just have to be creative :rolling:
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