Thread: another kr issue

ok so i have adjusted the BBV 20+ times to try to fix burst knock...turns out no matter what i do i have at least 2.7 degrees of KR at WOT and high rpms...now today i noticed it his 9.3 out of no where but if i was really getting that much knock wouldnt i have felt it bogging like a champ...now two things..i talked to turbo tim at zzp and he said platinum plugs are terrible for knock reduction use copper? any body running platinum plugs without issues? and do you think that random 9.3 was false or are my plugs fouling out and causing excess knock?

i am having a burst knock issue on my car. it knocks a lot when i start to boost, then fades out as the RPMs go up. if youre getting knock that increases as the RPMs go up then it is not burst knock or caused by the BBV.

you should also be running copper plugs.

hey guys i noticed i have excessive knock at high speeds say i do a 0-100 pull i see 1.9/2.1 then around 65mph to 100 ill see spikes of 6,7,8,9 sometimes...wtf is that? i can feel it studdering too so i know its real....

excessive load at high speeds will cause knock. also, the car runs leaner and leaner each gear it makes it through.

ok wow found the problem....i had up to 8*kr when i was running ap104's (platinum) i just switched to AL104's (copper) and i side gapped them to preven fouling and i did 4 0-110 pulls and i never saw anything higher than 2.4*kr what a difference! dont run PLATINUMS PLUGS THEY SUCK ...got a catless downpipe in the mail im hoping for 0.0 kr after install!

Originally Posted by TDCRacing

Could also be TM

what is tm?

torque management. it cuts timing (KR) when it sees a high torque level.

cant wait to turn that crap off so i dont get 9* of knock on a downshift into boost.