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KR Questions...

Yea I have noticed that while reading around here. Guess that should be my next purchase. Then I will have it retuned AGAIN!! oh well part of the learning curve I guess.
 




Ok, so I went down to PRJ this weekend so he could see why my car has excessive KR. Checked the tuning and all the parameters of the engine and didnt find anything out of wack. Everything looked good, plugs were good, had one wire that was suspect so we changed the end but didnt change anything. Checked the down pipe to sway bar clearance and im good. We were starting to suspect it was just false KR since everything was checking out good. So Paul said just to make sure, run my car down close to empty and put some 100+ octne unleaded race fuel in and see if the KR is still there. If it is there with race fuel we know its a false reading. If it does go away with race gas... Well gonna have to dive in a little deeper. So i got it down to below a 1/4 tank yesterday and put 5 gallons of 105 octane go go juice in her. KR all but went away. Dropped from 7* KR at WOT to about 1.5-2* KR @ WOT with the race gas. Its not false KR. So PHUK ME. We also noticed my car produces about 10# boost at WOT. Paul thinks my short block might have been swapped to an L36 at some point in the past. Guess ill get a compression test done and a bore scope to see if i have a chipped piston... FML. That is all for now
 
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I would rather find the actual issue than band aid it. Obviously there is something a miss. Many many guys run a set up similar or the same as mine and alot more extreme and dont have the issue i am having. I wasnt suggesting i run race fuel to cure my KR issue. I want to know whats causing it and fix it. Not take my mods off.
 
Not every car is the same, it isn't that hard to grasp this concept.

My buddy ran a 3.3" with just a u-bend delete and a canned PCM. Had like .5* of KR.

Point being is just because you have "X" mods, doesn't mean you can just run "Y" pulley because "Z" did on his GTP.
 
Im not giving up that easy and going to a stock pulley. Its not like 2 or 3 guys are running my set up.. Its a common, mild set up snd should be and is able to be run with very minimal if any KR.
 


I tried a 3.5 and went back to the stock pulley because of similar circumstances. No fun chasing the KR.
 
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