detonation or not?

[duMb KeoLa]

how do you tape those vids??? from like a digital camera, like cybershot or from a real camera? but yah, i need to start doing that so i can see whats happening

 

[duMb KeoLa]

so whats the cure and whats the consequences of running it like that??? if my a/f is okay, will that mean i am "safe"?

 

[charles]

Could it be due to a limitation of the air flow meter? A lot harder to say since your car is not stock :-/

 

[igdrasil]

could be injectors maxed, or limited maf!

I film that with a real camera Sony DCR-TRV250

Well if you keep lean readings like that on a heavy load or for long, temps will rise in a breeze...piston rings may fry or detonation may occur and break something before frying pistons.

 

[unwrittenLaw]

let me take back my thread...mmmmk...thanks

quasi bumpage

 

[[syko.xero]]

im guessing that noise is detonation

 

[unwrittenLaw]

that's my guess too..but it seems that after all the times i've heard it, my engine would have blown by now...but who knows...

 

[PaulMP3]

i installed my msd knock sensor sunday.. i am detecting knock above 5000 rpms. i having been boosting above that untill i get my timing nder controll, and im gonna add some fuel up top. maybe bring my AFR down into the low 11's see if that helps.

This was 142$ and took 30 minutes to install.. This should be a must for anyone upping the boost on a msp or a boosted protege. I never heard any detonation.. but the sensor is fine untill 5k than starts blinking and beeping.. not good, but im glad i caught it in time, i hope i havent done to much damage. I will post pics and a thread when i get around to it.

 

[unwrittenLaw]

sounds like a good preventative mod....its just strange that alot of people are boosting over stock and haven't noticed or seem to worry about detonation...maybe i'm over-paranoid, but this is my daily driver and i'd like it to last awhile...its not like i have a spare engine sitting in my garage

 

[duMb KeoLa]

PAULMP3

whered you get that msd knock sensor??? you got any pics of it how it looks and operates?? thanks a lot man, maybe something i might be picking up very soon..im afraid of blowing up my engine...

what kinda comp you got in your turboed mp3??

 

[[syko.xero]]

sounds like a good preventative mod....its just strange that alot of people are boosting over stock and haven't noticed or seem to worry about detonation...maybe i'm over-paranoid, but this is my daily driver and i'd like it to last awhile...its not like i have a spare engine sitting in my garage

if that was detonation wouldnt it have destoryed your motor or at least made it slower (the car)?

 

[charles]

It can take time... this isn't a rotary where if you detonate once the thing pops.

 

[unwrittenLaw]

yeah, thats true....I thought using the copper plugs would allow me to boost a little more safely, but i guess not

 

[azian6er]

hey paulmp3 where exactly did you thread the msd knock sensor into?

Just curious because i think i am gonna use it too.

-B

 

[PaulMP3]

i dont feel like searching now, but i got it off www.jegs.com.

The display unit is hideously ugly, for now i have the wire just hanging in fornt of the stereo and have it placed in the pocket next to my wideband, i might try and open it up and make a custom face for it so i dont have to look at the cheap looking display. but it serves a purpose so i will get over it.

as for the sensor itself, it is threaded and there are a few places you can put it.., i put mine in the front f the engine below the exhaust manifold into a threaded unused hole in the block. There are a few to choose from. One wire runs through the firewall to this sensor.

when i get around to it i will start a thread and show pictures of the install.

 

[duMb KeoLa]

http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=3367&prmenbr=361

that the one??? yah, that does look nasty...

 

[duMb KeoLa]

what other safe guards are there like this thing??

 

[PaulMP3]

yep thats it.. ewwww..


the j&s is the ultimate tool to get, it actually does something if hearing knock.. but ths is 1/4 the price and it is a nice heads up warning that there might be a problem, and to get out of boost.

 

[[syko.xero]]

how long would it take for detonation to actualy affect your engine performance (i.e. how unwrittenlaw described it)

 

[unwrittenLaw]

I guess it depends on other variables, but I'm going to have to go down to 7-8 psi to be on the safe side...kinda sucks. I suppose w/ the advanced timing after the re-flash and piss poor Cali 91 octane thats what happens...