For some reason I just started picking up knock when I have not been. This datalog is with the 4306 plugs but I canged them back out and put the 2 step colder Iridium plugs back in at a .028 gap but it still did not help. I also found and fixed 3 boost leaks and it still did not help. I am running about 20psi with the af's in the hight 10's to mid 11's at redline on 93oct pump gas. I just don't see why it is knocking, anybody see anything wrong that might help me fix this?
1) It could just be the gas you're using. Many stations are switching to a crap winter blend around here. Run this tank through and switch brands to see what happens. Be sure to clear the LT Knock before testing.
2) Your most prominent knock is at ~5100rpm, where, imo, false knock pops up. Be sure your Knock sensor is properly torqued to no more than 190in-lbs.
3) If this is a new tune, be sure TDS raised your knock thresholds. As far as I know, they usually do. won't hurt to double check.
4) Just a general observation: I've notice since last winter, most guys have a reduction in Knock as temps got warmer. Having a colder ACT but the same Boost psi does increase the charge density and likelyhood of knock, if the timing isn't properly reduced to match. I suspect we'll see more threads from guy's complaining about a sudden rise in knock.
__________________
"Just because someone goes fast doesn't mean you should do whatever you think they did.
This path assumes they knew what they were doing, which isn't necessarily the case"..........RB Racing
1) It could just be the gas you're using. Many stations are switching to a crap winter blend around here. Run this tank through and switch brands to see what happens. Be sure to clear the LT Knock before testing.
2) Your most prominent knock is at ~5100rpm, where, imo, false knock pops up. Be sure your Knock sensor is properly torqued to no more than 190in-lbs.
3) If this is a new tune, be sure TDS raised your knock thresholds. As far as I know, they usually do. won't hurt to double check.
4) Just a general observation: I've notice since last winter, most guys have a reduction in Knock as temps got warmer. Having a colder ACT but the same Boost psi does increase the charge density and likelyhood of knock, if the timing isn't properly reduced to match. I suspect we'll see more threads from guy's complaining about a sudden rise in knock.
Well, I already did the fuel switch and it did not help. TDSAaron has already raised my knock thresholds also. You are right and kason23 told me the same thing it does seem to want to knock more in the colder air. Does everything else look pretty good to you?
What do you mean by clearing the LT knock? Just reset the computer or something?
1) It could just be the gas you're using. Many stations are switching to a crap winter blend around here. Run this tank through and switch brands to see what happens. Be sure to clear the LT Knock before testing.
2) Your most prominent knock is at ~5100rpm, where, imo, false knock pops up. Be sure your Knock sensor is properly torqued to no more than 190in-lbs.
3) If this is a new tune, be sure TDS raised your knock thresholds. As far as I know, they usually do. won't hurt to double check.
4) Just a general observation: I've notice since last winter, most guys have a reduction in Knock as temps got warmer. Having a colder ACT but the same Boost psi does increase the charge density and likelyhood of knock, if the timing isn't properly reduced to match. I suspect we'll see more threads from guy's complaining about a sudden rise in knock.
Well, my gauge on the boost controller is saying 20.5psi and it was dead on on the dyno. Something might be going wrong with it or something. How is it that you said that I can read psi with the diablosport?
ADV map to use minus BARO.. And I would go by that...
Ok, I will try that out. Hell, if it is rising that high, that's probably why i'm getting knock then. Damn that will suck if I have been running 23psi this whole time getting use to it and have to turn it down, it will feel like a turd.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
60-1 3rd gear datalog...
Linear Mode
