WOT timing at 19, what to look for
WOT timing at 19, what to look for My WOT timing is at 19* and i cant figure out why.
PP stage II heads 59cc with TSP 231/237 cam in an A4.
Ive seen the post on efilive about how the high and low octane tables work and it uses a multiplier. but if im only getting 19* at WOT then its only looking at the low octane table. im not getting much KR and im using 100 octane gas.
so far the only time i really see knock is while the car is still cold and in open loop.
PP stage II heads 59cc with TSP 231/237 cam in an A4.
Ive seen the post on efilive about how the high and low octane tables work and it uses a multiplier. but if im only getting 19* at WOT then its only looking at the low octane table. im not getting much KR and im using 100 octane gas.
so far the only time i really see knock is while the car is still cold and in open loop.
Ok, how much is a little? And you say you still get it with race gas? Where in the RPMs do you get it? Have you upgraded your 98 POS Knock sensors for newer ones? They are known to be POS.
You can copy the high octane over the low, then -a couple degrees, but in your case, find the KR source 1st.
Whats the timing b4 the KR?
And whats your AFR at?
Look into your intake, removing TB, if you have a nice coat of oil you may want to run soe top end cleaner, excess oil will cause detontation, and KR.
You can copy the high octane over the low, then -a couple degrees, but in your case, find the KR source 1st.
Whats the timing b4 the KR?
And whats your AFR at?
Look into your intake, removing TB, if you have a nice coat of oil you may want to run soe top end cleaner, excess oil will cause detontation, and KR.
if u have oil get a catch can, well let me rephrase that, make one...it was simple and doesnt look too bad. save u some problems too
also i take it the car is tuned? if so have it checked out. i was only gettin 25* at WOT cause the tables were all messed up. now its fixed and im about 29-30* from 2800 rpm plus. is it at 19* from about 3000-redline?
also i take it the car is tuned? if so have it checked out. i was only gettin 25* at WOT cause the tables were all messed up. now its fixed and im about 29-30* from 2800 rpm plus. is it at 19* from about 3000-redline?
WS6-Mike, yes the catch can will work, and as I read you must have just finished yours, good job. But the fact remains that if there is oil in there, it can cause detonation. He is having issues with KR which is why his timing is pulled so low.
Hang in there WicketMike, we'll get this cam sorted out yet.
Hang in there WicketMike, we'll get this cam sorted out yet.
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Originally Posted by WicketMike
My WOT timing is at 19* and i cant figure out why.
PP stage II heads 59cc with TSP 231/237 cam in an A4.
Ive seen the post on efilive about how the high and low octane tables work and it uses a multiplier. but if im only getting 19* at WOT then its only looking at the low octane table. im not getting much KR and im using 100 octane gas.
so far the only time i really see knock is while the car is still cold and in open loop.
PP stage II heads 59cc with TSP 231/237 cam in an A4.
Ive seen the post on efilive about how the high and low octane tables work and it uses a multiplier. but if im only getting 19* at WOT then its only looking at the low octane table. im not getting much KR and im using 100 octane gas.
so far the only time i really see knock is while the car is still cold and in open loop.
joel
Originally Posted by CAT3
Ok, how much is a little? And you say you still get it with race gas? Where in the RPMs do you get it? Have you upgraded your 98 POS Knock sensors for newer ones? They are known to be POS.
You can copy the high octane over the low, then -a couple degrees, but in your case, find the KR source 1st.
Whats the timing b4 the KR?
And whats your AFR at?
Look into your intake, removing TB, if you have a nice coat of oil you may want to run soe top end cleaner, excess oil will cause detontation, and KR.
You can copy the high octane over the low, then -a couple degrees, but in your case, find the KR source 1st.
Whats the timing b4 the KR?
And whats your AFR at?
Look into your intake, removing TB, if you have a nice coat of oil you may want to run soe top end cleaner, excess oil will cause detontation, and KR.
nomore then 3 and its only when the temp is 145 or less and im guessing in open loop. i did upgrade the knock sensors and i have a wideband and my AFR is 12.9 at WOT. and ive been thinking about running some top engine cleaner thru it and getting the injectors cleaned also
Originally Posted by WS6FirebirdTA00
if u have oil get a catch can, well let me rephrase that, make one...it was simple and doesnt look too bad. save u some problems too
also i take it the car is tuned? if so have it checked out. i was only gettin 25* at WOT cause the tables were all messed up. now its fixed and im about 29-30* from 2800 rpm plus. is it at 19* from about 3000-redline?
also i take it the car is tuned? if so have it checked out. i was only gettin 25* at WOT cause the tables were all messed up. now its fixed and im about 29-30* from 2800 rpm plus. is it at 19* from about 3000-redline?
i already have a catch can. yes the car is tuned and i use to always get 28* timing before this heads and cam and its 19* all the way thru WOT
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Originally Posted by binksz06
You can hold it in the high octane table ( which is where it should start after an Edit) by -> Eng Cal -> Ign Tab -> Knock Learn -> wind the "Min" value up to 6500 RPM. Then it can't drop into the Low Octane Table. FWIW.
joel
joel
Hey Joel,
i know this will fix the problem, but wouldnt this just be considered going around the problem? ive always gotten 28* of timing at WOT until after this head/cam swap
thanks
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Verdad Gallardo well i would think it would be some kind of programing issue or something if it happened just after that. unless something was damaged or not hooked back up after the heads and cam. since u know it started then i would back track and make sure u go over everything again, maybe a sensor was damaged. have u loged all other parameters? do they all seem normal?
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Originally Posted by WicketMike
Hey Joel,
i know this will fix the problem, but wouldnt this just be considered going around the problem? ive always gotten 28* of timing at WOT until after this head/cam swap
thanks
i know this will fix the problem, but wouldnt this just be considered going around the problem? ive always gotten 28* of timing at WOT until after this head/cam swap
thanks
Yes, it's a Band Aid. But an easier way to lock it into the Hi-O table ( avoiding knock retard and an increased proportion of Lo-O table) while you tune. GMPX told me about this on the EFILive Forum - the man knows his stuff when it comes to the LS1 PCM. FWIW.
joel
Mike,
-Is there any audible knock?
-Its only when cold yousaid right? If so, then your running cold, seeing KR, going into the Low Octane Table, and stuck there until you; reflash, or fill up with min. 5gals gas, or tweak the KR tables reducing the decay rate. Look at the cold settings, IFR increase, timing decrease when cold. Are getting misfires from the cam? I say concentrate on the cold settings, and seeing whats up. Have you tried reflashing it, or doing an idle relearn, or even fillign up when warm just to make sure it is not anything when your warm as well?
-Is there any audible knock?
-Its only when cold yousaid right? If so, then your running cold, seeing KR, going into the Low Octane Table, and stuck there until you; reflash, or fill up with min. 5gals gas, or tweak the KR tables reducing the decay rate. Look at the cold settings, IFR increase, timing decrease when cold. Are getting misfires from the cam? I say concentrate on the cold settings, and seeing whats up. Have you tried reflashing it, or doing an idle relearn, or even fillign up when warm just to make sure it is not anything when your warm as well?
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Originally Posted by binksz06
WicketMike
Yes, it's a Band Aid. But an easier way to lock it into the Hi-O table ( avoiding knock retard and an increased proportion of Lo-O table) while you tune. GMPX told me about this on the EFILive Forum - the man knows his stuff when it comes to the LS1 PCM. FWIW.
joel
Yes, it's a Band Aid. But an easier way to lock it into the Hi-O table ( avoiding knock retard and an increased proportion of Lo-O table) while you tune. GMPX told me about this on the EFILive Forum - the man knows his stuff when it comes to the LS1 PCM. FWIW.
joel
joel
Welcome to the 98s. You can do what blinksz06 said, other than that good luck. 98s are weird like that. And no, replacing the knock sensors with the newer ones does not correct the issue.