reading kr

[buschegt]

Ok so I'm kinda a noob on this one but what do I need to scan for kr?

 

[Scottydoggs]

torque app is the cheapest way under 20 bucks, then aeroforce or scan gauge.

 

[buschegt]

Something has to hook up to the car righThe for the app to work?

 

[Scottydoggs]

a elm 327 obd2 Bluetooth reader, its like 11 bucks, the app is 5, you need a droid OS in a phone or tablet.

 

[buschegt]

So like a note 4 would work for the android part?

 

[Booba5185]

As long as it is Android and has Bluetooth.

 

[J57ltr]

Ok so ho exactly do you read KR? It's not one of the choices, I picked timing.

 

[Scottydoggs]

look for knock retard, dont take offence, its what KR stands for lol

 

[buschegt]

Ok so once you find that category how do get rid of it? How much is bad and what does kr really do?

 

[Scottydoggs]

if your stock your gonna see some kr. its normal and ok.

but once modded you dont want any kr.

i had 8* kr stock. 1.95 rockers and a u bend delete made the car kr free with out a tune. once the headers and 3.4 went on tuning had to happen.

 

[Xorbex]

Not to say scotty is wrong but a few of us recently bought an elm that didn't work with our cars. The adapter that worked for us was the BAFX on amazon/ebay for $23. If you need the link PM me and ill get back to you

 

[buschegt]

Ok so once you find that category how do get rid of it? How much is bad and what does kr really do?

 

[Xorbex]

KR is pre-detonation in your cylinder. Meaning it ignites before it should and can cause a chipped piston. On a stock car 5-7 should be ok but on a modded car you don't want any. To get rid of it you need to have more airflow out of the motor. If you are moderately modded you need to tune it out along with breathing mods.

http://www.zzperformance.com/blog/kr-how-to-fight/

http://www.zzperformance.com/blog/eliminating-kr/

http://www.zzperformance.com/blog/about-knock-retard-kr/

 

[Scottydoggs]

Ok so once you find that category how do get rid of it? How much is bad and what does kr really do?

did you just skim this?

if your stock your gonna see some kr. its normal and ok.

but once modded you dont want any kr.

i had 8* kr stock. 1.95 rockers and a u bend delete made the car kr free with out a tune. once the headers and 3.4 went on tuning had to happen.

 

[buschegt]

I'm not sure why it posted twice my bad. So on a stock other than a pcm kr is ok. Would you notice any difference if you got it lower or eliminated?

 

[Scottydoggs]

you will. rockers, down pipes, u bend deletes, headers all kill off KR with out a tune.

when you have kr the timing gets pulled down to save the engine. no kr the timing stays up and you can feel it pull harder. of course this all depends on how much kr your seeing. like i said, i was at 8*, timing was cut to 7 from 15.

 

[buschegt]

With those mods do you have to retune the pcm?

 

[REDCRAPGP]

You don't have to but you should to maximize its potential


Sent from my iPhone using Tapatalk

 

[Scottydoggs]

With those mods do you have to retune the pcm?

you will. rockers, down pipes, u bend deletes, headers all kill off KR with out a tune..

your reading mod needs to be stronger my friend.........

 

[luckyg817]

Sorry for sort of semi bringing this thread back to life but I just had a quick question. On my 04 NA I am looking at around 5-6* of KR. I see that KR on cars that are stock is normal but was just wondering how much KR is fine until you should be concerned? And also would NA and supercharged have a different range as far as how much KR is normal for each?