Need Some help w/ weird Knock
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,376
Likes: 4
From: Hershey, PA, USA
Cruise-In VI Veteran
St. Jude Donor '12
Need Some help w/ weird Knock
I have a 00 Vette w/ A&A ATI kit.. pushing 5-6# of boost....
Right now I am getting this weird knock problem and I have been fighting it for a while.
In 4th gear I can mash it WOT all the way to 6k and get maybe 1* of knock around 57-58k, but when I am in 2nd or 3rd gear and do the same thing I will get 5-8* of knock same thing I will get knock from about 0.72 (g/cyl) @ 3800rpms all the way up to 6k WOT....
I changed my plugs and ran a can of sea-foam through the motor to clean all the carbon and crap out...
Also i already have the maxium amount timing set at 6* WOT....
Right now I am getting this weird knock problem and I have been fighting it for a while.
In 4th gear I can mash it WOT all the way to 6k and get maybe 1* of knock around 57-58k, but when I am in 2nd or 3rd gear and do the same thing I will get 5-8* of knock same thing I will get knock from about 0.72 (g/cyl) @ 3800rpms all the way up to 6k WOT....
I changed my plugs and ran a can of sea-foam through the motor to clean all the carbon and crap out...
Also i already have the maxium amount timing set at 6* WOT....
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
Originally Posted by C5kid
I have a 00 Vette w/ A&A ATI kit.. pushing 5-6# of boost....
Right now I am getting this weird knock problem and I have been fighting it for a while.
In 4th gear I can mash it WOT all the way to 6k and get maybe 1* of knock around 57-58k, but when I am in 2nd or 3rd gear and do the same thing I will get 5-8* of knock same thing I will get knock from about 0.72 (g/cyl) @ 3800rpms all the way up to 6k WOT....
I changed my plugs and ran a can of sea-foam through the motor to clean all the carbon and crap out...
Also i already have the maxium amount timing set at 6* WOT....
Right now I am getting this weird knock problem and I have been fighting it for a while.
In 4th gear I can mash it WOT all the way to 6k and get maybe 1* of knock around 57-58k, but when I am in 2nd or 3rd gear and do the same thing I will get 5-8* of knock same thing I will get knock from about 0.72 (g/cyl) @ 3800rpms all the way up to 6k WOT....
I changed my plugs and ran a can of sea-foam through the motor to clean all the carbon and crap out...
Also i already have the maxium amount timing set at 6* WOT....
please give some more details.....edit software..throttle position..
"Also i already have the maxium amount timing set at 6* WOT...."
your not saying that your total timingis only 6*?
cannot be tip in...to long..
what u need to do first is determine if its false kr or not. throw in some 100 octane unleaded race gas then report back.
Last edited by NICK YOSKIN; Mar 21, 2006 at 07:30 AM.
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,376
Likes: 4
From: Hershey, PA, USA
Cruise-In VI Veteran
St. Jude Donor '12
i ran some 94 octane through and it's not false knock... very audible and sounds like someone is smacking the motor w/ a hammer.
i am using HPtuners to edit...
TP usually i am at 60% throttle when it's the worst....
i am using HPtuners to edit...
TP usually i am at 60% throttle when it's the worst....
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 3,376
Likes: 4
From: Hershey, PA, USA
Cruise-In VI Veteran
St. Jude Donor '12
this is a dumb question to that i just realized
what is the total timing?
I have the timing set from about 1.12 (g/cyl) down set at 6*( across the whole RPM)
what is the total timing?
I have the timing set from about 1.12 (g/cyl) down set at 6*( across the whole RPM)
