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Top Swap and S2IC Knock KR issues

rell2005

rell2005

New member
Im having around 4-5 degrees KR and figured I would see it anyone had any others ideas I didnt think of...The mods are the Top-Swapped GT motor with SLP headers, 3.2 pulley and the Stage 2 IC. New spark plug wires from ZZP and AL103 plugs. I would like to believe its a fueling issue, maybe an old ass partically clogged fuel filter (which I forgot to change but will be doing soon) but wondered what else it could be. When we did the scan for knock and I went WOT, its sometimes felt like it didnt wanna shift or it would jump throttles, if that makes any sense. Little KR at 70-90%, I'll jump to 2 or 2.5 degrees then gon downs to 0 kr. And this is sometimes, not everytime. Also having false knock. Only about for 5 minutes after start up. ill just all over the place, even at 20%-40% throttle. Then after a few mintues, its gone. Other than the KR issues the car runs smooth and shifts fine. Im going to get dyno-tuned at ZZP soon too, most likely in the next week or two.
 


Fivefingerdeathpunch said:
You need a real tune for the mods you have.
Click to expand...

We tuned it shortly after the TopSwap, the file with the tune was from a buddy of mine who used to work at ZZP (unless my roommates altered the file when flashing the pcm). He's kinda knock for hitting a tune on the spot. Thats why I didnt think tuning was the issue, but we'll soon see after the dynotume
 
put the stock pulley back on till you can get it re tuned then. the file you got needs help. what you got was canned tune basically. it needs to be fine tuned.
 






That'll come in handy. Purchase one as soon as you can. I agree with the others on the larger pulley. I'd throw one on to be a little safer until you can get a true street / dyno tune. Canned tunes are just pissing in the wind hoping to get close.
 
lol @ 3.2" with no valvetrain upgrades.

Needs bigger injectors, needs a solid WB tune, needs more 3.4"~ pulley.

Then, needs more timing :)
 
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