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08-17-2008, 01:18 AM
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3800 Newbie
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Korey Carnevale
Location: Miamisburg
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High KR
My car has high KR and I was told that this is the place to find help. Here's where i'm at. It started with 9 degrees of KR so we changed the plugs to AL 104's got KR down to 7 so then we change the front header to a power log and got the KR down to 4ish. So any suggestions of what to try next?
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2003 GT, Intense PCM, ZZP alt rewire, MSD Coils, Taylor 8mm wires, Custom CAI w/ 7" K&N, GMPP RTA, GMPP RSB, 2.5 ZZP Down Pipe (No Cat), ZZP Front SS Plog, 180 stat, ZZP HF Fuel Filter, Custom Paint, hopefully more to come (like turbo in '09)
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08-17-2008, 05:11 AM
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Proud customer of Sinister Drag Design!!
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Mike Stiemann
2002 grand prix gtp
Location: Oswego, il
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12.99someday98 holds the following arcade championships:
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i find it very weird that you have kr like that on a gt...? Have you tried scanning for afr's to see if you are running lean? What kind of timing are you commanding? That's the first two places i would start. If you need more mods to get rid of it then i would suggest rockers? Those should kill 4kr, but first things first is finding out why its doing it in the first place.
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2002 gtp 4inch intake, 3.2 pulley, msd coils, msd wires, 104/103 plugs .055/.030 gap, 60# injectors, hpt, e85, 1.95 roller rockers, paceruster headers, 160 thermostat, 85mm maf, b&g lowering springs, strut tower braces front and back, nx dry kit, alky injection, tranny man trans (i freakin' love it!!) and electric water pump.
New pb.... I RAN 11's!! 
PB 12.83@102/1.83 60'  no spray. best mph 106.16
PB 11.84@115.56 1.76 60'  with spray.
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08-17-2008, 05:56 AM
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steve crabtree
01 gtp
Location: merced
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the kr sounds really high.. .......
are you running 91 octane?
I never new gt had kr.. I thought being none blown that they had no kr....
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Yes i no copper plugs...
Ap104,180 tstat, pulley 3.4-3.7.3.9 - ubend delte..
Full exhaust, Homemade heat shield -removed it.. thorttle body spacer. K&n fiter .
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08-17-2008, 01:24 PM
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Vinnie DiRenzo
MP112 97 GTP
Location: Huber Heights, OH
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I have been helping him try to get rid of this and short of a dynotune I'm not sure what to do. The colder plugs killed a few dgrees like he said but he still had part throttle knock and WOT knock. Then we got rid of the fromt manifold in favor of a plog and that did get rid of the part throttle knick, from what I can remember, but he still averages 4* and up to 6* the higher the RPMs.
This isn't the first GT I have heard of with high knock. Dayday's wife's GT gets up to 11* IIRC at cruise!
I'm wondering if a set of 1.9s and an HV3 is in his future here. His eventual goal is turbo and these are at least good compliments to that so it wouldn't really just be a band-aid.
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08-17-2008, 01:30 PM
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Harry Stone
1997 Buick Regal GS
Location: Clovis NM
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Do you still have the U bend? I agree that you should scan for lean condition.
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As always, contact Ed Morad for your used parts needs. sales@moradpartscompany.com
I AM NOT ED!!! 
Regal GS(X), 3.5 installed (3.3 hanging around)" MPS pulley, SLP headers; cat back; CAI, Intense upper engine mounts; 3rd gen LSD; S1X cam; HPTuner, 1.6 Roller rockers, ported S/C, Autolite 104's, 180 t-stat, headlight wiring upgrade, HIR low beams, SLP springs, GM sway bars and trailing arms, fancy-ass rims and cool badges. 
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08-17-2008, 01:41 PM
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3800 Newbie
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Korey Carnevale
Location: Miamisburg
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No I replace the down pipe with no cat.
Vinnie the plugs are 605's not 104's.
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2003 GT, Intense PCM, ZZP alt rewire, MSD Coils, Taylor 8mm wires, Custom CAI w/ 7" K&N, GMPP RTA, GMPP RSB, 2.5 ZZP Down Pipe (No Cat), ZZP Front SS Plog, 180 stat, ZZP HF Fuel Filter, Custom Paint, hopefully more to come (like turbo in '09)
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08-17-2008, 01:48 PM
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Vinnie DiRenzo
MP112 97 GTP
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I thought so
We need to find you a stock PCM.
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08-17-2008, 01:50 PM
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3800 Newbie
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Korey Carnevale
Location: Miamisburg
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got one.
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2003 GT, Intense PCM, ZZP alt rewire, MSD Coils, Taylor 8mm wires, Custom CAI w/ 7" K&N, GMPP RTA, GMPP RSB, 2.5 ZZP Down Pipe (No Cat), ZZP Front SS Plog, 180 stat, ZZP HF Fuel Filter, Custom Paint, hopefully more to come (like turbo in '09)
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08-17-2008, 04:53 PM
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3800 Newbie
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Korey Carnevale
Location: Miamisburg
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Okay just switched over to the factor pcm and still does the same. Some of the things that i noticed is that i had no KR when the engine was cold. after about 160 degrees i started seeing KR around 4 ish. Also noticed that after 4k rpm is when i noticed KR. the average was about 4KR. here are the temps of everything when i did this.
Air intake 84
water 186
trans 88
any suggestions? I was told to try an HV3 then rockers, but holding off of those since i would like to get turbo this winter.
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2003 GT, Intense PCM, ZZP alt rewire, MSD Coils, Taylor 8mm wires, Custom CAI w/ 7" K&N, GMPP RTA, GMPP RSB, 2.5 ZZP Down Pipe (No Cat), ZZP Front SS Plog, 180 stat, ZZP HF Fuel Filter, Custom Paint, hopefully more to come (like turbo in '09)
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