PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

KR issues

Thread Tools
 
Search this Thread
 
Old Nov 7, 2003 | 07:04 PM
  #1  
purevilss's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2002
Posts: 301
Likes: 0
From: Fayetteville, NC
Default KR issues

I have been chasing my Tip in and WOT KR issues for about 6 month with no luck. Any time I gun the throttle say from 10% to 30% or more, I get KR and at WOT I get KR. I have my LTFT's from - to -5 and I am at a point where if I add 1% to my PE/RPM I get more KR and if I remove 1% from my PE/RPM I get more KR. I also mixed 50/50 100 octane with 91. and no luck. Any Ideas???
Scott
Reply
Old Nov 7, 2003 | 07:06 PM
  #2  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Are you sure the headers, y-pipe or underdrive pulley aren causing a false knock. Is the detonation audible and how much retard are you getting
Reply
Old Nov 7, 2003 | 07:12 PM
  #3  
purevilss's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2002
Posts: 301
Likes: 0
From: Fayetteville, NC
Default

No not sure, Everything is tight, as I can tell, with the exhaust. I have the stock pully, so can't see that being an issue. Though I have never heard any audible noise from the motor. With throttle tip-in I see any where from 1* all the way to 9.1* KR. Depending on my speed when I ge on it. With WOT I see 4.5KR. I get it more than 80% of the time!

Scott
Reply
Old Nov 7, 2003 | 08:47 PM
  #4  
WS6FirebirdTA00's Avatar
TECH Senior Member
20 Year Member
iTrader: (33)
 
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Default

what temps your car running at? and what plugs do u have? i did a tune up with mds wires and ngk plugs and then i have my temps at abut 172-176 and its perfect now. can you explain false knock from headers or pulleys???
Reply
Old Nov 7, 2003 | 09:19 PM
  #5  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Check the other thread you posted in for reasons on false KR
Reply




All times are GMT -5. The time now is 01:33 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE