Who delete's KR
Thread Starter
LS1Tech Sponsor
iTrader: (12)
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Who delete's KR I've noticed a few cars lately coming to my shop with the KR taken out.So the computer does not pull timing like it should.
I'm highly against it,but was wondering how many people have actually tuned and deleted KR?
I'm highly against it,but was wondering how many people have actually tuned and deleted KR?
I had the Knock Retard removed from my PCM in my first MTI heads/cam setup. Jayson at MTI recommended that I not have it removed, but stupid me removed it anyway. Having it removed was the reason for my 80% leakdown results and chunks missing from my ringlands on pistons 3 & 5. I'll never make that mistake again. See the pictures:
http://community.webshots.com/photo/...49283765fRQpRl
http://community.webshots.com/photo/...49283840UCtRAd
http://community.webshots.com/photo/...49283765fRQpRl
http://community.webshots.com/photo/...49283840UCtRAd
BIG HP setups you have to can KR.
Big nitrous motors you have to can KR
Anybody who runs solid motor mounts you have to can KR.
Anybody who is making in excess of 650-700 HP should have thier KR taken out, because it IS NOT going to save your motor. All it is going to do is slow you down at the track.
I have removed the KR on quite a few vehicles. I don't recommend it for normal street setups, but its not like the car is going to spontaneously explode if it is removed. I have also pulled it on several 98's with the dreaded false KR problem when specifically asked.
Big nitrous motors you have to can KR
Anybody who runs solid motor mounts you have to can KR.
Anybody who is making in excess of 650-700 HP should have thier KR taken out, because it IS NOT going to save your motor. All it is going to do is slow you down at the track.
I have removed the KR on quite a few vehicles. I don't recommend it for normal street setups, but its not like the car is going to spontaneously explode if it is removed. I have also pulled it on several 98's with the dreaded false KR problem when specifically asked.
Thread Starter
LS1Tech Sponsor
iTrader: (12)
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
I under stand big HP cars.So far I've seen this on 3 street cars that the owners didn't even know it was pulled..I was actually surprised to see 2 mild H/C cars and 1 bolt-on car with this done..
I removed it because the sensors were shot (got water in them). I was going to replace them but now that I am doing solid motor mounts I won't be able to use them anyways. I just tune the car to not knock (a little less that 100% advance) and always run the best gas I can (have never had a problem).
Thread Starter
LS1Tech Sponsor
iTrader: (12)
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Originally Posted by CAT3
Slowhawk, are you talking about low matching High Octane tables? If so, I have mine set to take 2* out.
I just found it rather disturbing that the H/C cars had this deleted without the customer's knowing.Timing was set to 30 and 32 degree's and when we dyno'd the A/F was over 13-1 and could here pinging (no timing being retarded)
So,just seeing how many people actually do this..
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Regular
Joined: Nov 2003
Posts: 434
Likes: 0
From: Dallas
I have reduced the Max KR a bit (from 8 to 5) and decreased the KR sensitivity 10% around a troublesome RPM range. Made these changes mainly to make tuning A/F less confusing. Changing the max KR to a different value in each table lets me know which table is being referenced when KR is applied. I have no plans to completely disable the KR system.