High knock control

[U.S.C]

Currently running phearable tune and I went to Mexico and raced someone up to around 115mph. I looked and the knock control got up to 1.12. When normal driving stays around 0.60-0.70.

ima noob with this stuff is that bad? Or am I okay?

Sponsored

 

[gtman]

The "in Mexico" comments drive me nuts considering that their speed limits are way lower than the US. But any hoo...

Being in California, your knock control will run a bit high on that tune because 91 is really the very lowest you can use and have it run decently. Plus, once you hit 5300 rpm on a non-Si, KC will go up noticeably.

Continue to push it hard and you could possibly see something over 1 which isn't great.

As far as .6 to .7 in normal driving, that's a bit high.

Did you happen to do this race right after uploading a new tune? The reason I ask is a new tune reverts to .59 and than drops down after some sedate driving.

Report back with your KC numbers on a normal 30 minute commute type day.

 

[360glitch]

1.12 is not something you want to see. What kind of fuel do you have in the tank?

Have you upgraded your intercooler?

 

[U.S.C]

The "in Mexico" comments drive me nuts considering that their speed limits are way lower than the US. But any hoo...

Being in California, your knock control will run a bit high on that tune because 91 is really the very lowest you can use and have it run decently. Plus, once you hit 5300 rpm on a non-Si, KC will go up noticeably. Continue to push it hard and you could see something over 1. Doing a race to 115 would certainly elevate it.

As far as .6 to .7 in normal driving, that's a bit high.

Did you happen to do this race right after uploading a new tune? The reason I ask is a new tune reverts to .59 and than drops down after some sedate driving.

Report back with your KC numbers on a normal 30 minute commute type day.

Nope I’ve had it tuned for a few days now.
okay I will check back after I do that.

 

[U.S.C]

1.12 is not something you want to see. What kind of fuel do you have in the tank?

Have you upgraded your intercooler?

I live in California so best I can do is 91 and nope no intercooler.

 

[gtman]

Remember too that after that race, those super high KC numbers will take a fair amount of time to drop down into a more normal range.

The other thing is that the Phearable tune really needs 93+ to run best. John Vega even posts that on the product page. You may need to splash a gallon of E85 per tank of 91 to keep KC in a better place.

 

[U.S.C]

Remember too that after that race, those super high KC numbers will take a fair amount of time to drop down into a more normal range.

The other thing is that the Phearable tune really needs 93+ to run best. John Vega even posts that on the product page. You may need to splash a gallon of E85 per tank of 91 to keep KC in a better place.

yeah numbers went back down to the normal I have. I just wanted to know if that 1.12 was like something major.

 

[ivanCivix]

1.12 is not something you want to see. What kind of fuel do you have in the tank?

Have you upgraded your intercooler?

What's the problem if k control goes up to 1 or more because of that non si logic? It would only pull timing and decrease power as far as i know

 

[gtman]

yeah numbers went back down to the normal I have. I just wanted to know if that 1.12 was like something major.

I don't think you did damage, no. Especially considering you said the numbers did drop down. But 1.12 is very high. I mean it's possible it also was a bad batch of gas or you were pushing it REALLY hard. Was the 1.12 after that one single pull to 115 or multiple hard acceleration runs?

 

[U.S.C]

I don't think you did damage, no. Especially considering you said the numbers did drop down. But 1.12 is very high. I mean it's possible it also was a bad batch of gas or you were pushing it REALLY hard. Was the 1.12 after that one single pull to 115 or multiple hard acceleration runs?

it was 1 pull with phearable map 3 tune.

 

[gtman]

It shouldn't go that high after 1 pull. Maybe John Vega could chime in. Also posting a datalog might be good as well.

 

[U.S.C]

Just got back from an hour drive back on factory tune and numbers were .55-.70

 

[phearable]

Replied to your dm. Culprit is fuel quality in mexico ?

 

[10thgenSIcoupeBLK]

I love Mexico drives

 

[NicoFK7]

Hi guys, hijacking the thread as I see a "similar" behavior and just would like to confirm everything's normal.

Car is a EUDM 1.5T sport (similar to US hatchback sport) that I just switched to Phearable 1.5R. I'm using only premium 98 RON fuel since i got the car. After a first 20min drive (no WOT pull) with Map 1 everything was ok: LTFT is around -5%, kcon is 0.49.

Then switched to Map 2 and did 2 WOT pulls in 3rd + 4th gears up to 100mph. WOT AFR is 11.2-11.3 (open loop) and kcon raised to 0.6 after 1st pull then 0.66 after 2nd. So everything seems fine.

Switched to Map 3 and did 2 WOT pulls more (wanted to check if everything was fine, especially the clutch). kcon was stable at 0.66 during 3rd pull however during 4th pull, in 4th gear after 5300 RPM it started climbing up to 1.05

After several pulls I understood it can happen. Somebody can confirm ?

Sponsored