Super High KR?

[Gotta_Go_Fast]

So I finally got an UltraGauge to monitor my car about 2 days ago, and my KR has been super all over the place every time I do a pull. Just cruising around town it shows no KR at all, but the second I give it the beans the KR jumps. Most times when I do a pull it will have KR in the teens, but tonight was the worst I've ever seen. I did a pull and saw it jump into the 30s and 40s and definitely noticed a loss in power. I know my coil pack is on its way out (there is quite a bit of corrosion on the springs so I ordered the MSD Blaster unit and new plugs). I'm also going to get some Gumout tune up that you throw in the gas tank since the top end of the cylinders look incredibly dirty. Anything else I can try?

Edit: The weather on the super high KR pull was high 60's, freshly rained, at night, with an intake temp in the 80s and engine temp in the 190s

 

[Gotta_Go_Fast]

Update: The new coils and plugs didn’t help much. It’s still really bad. Anyone?


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[RodKnock]

How are the injectors? When I was tuning my car I saw some KR. The cars are rediculously sensitive and base fuel enrichment on preignition, not throttle position, so there is the possibility of weak injectors too. On a tuned street car a wideband is always helpful. My engine mods are very similar to yours, except I used HP Tuners, and I am at about 93% IDC at the top, which is the most the stock injectors can handle, any little bit of weakness in the injectors and it will go lean.

 

[Gotta_Go_Fast]

How are the injectors? When I was tuning my car I saw some KR. The cars are rediculously sensitive and base fuel enrichment on preignition, not throttle position, so there is the possibility of weak injectors too. On a tuned street car a wideband is always helpful. My engine mods are very similar to yours, except I used HP Tuners, and I am at about 93% IDC at the top, which is the most the stock injectors can handle, any little bit of weakness in the injectors and it will go lean.

Ah I’m sorry, I forgot to update the thread. I talked with Trifecta and they said the KR from my datalogs didn’t go over like 2 lol. It only did it when I was really trying to aggravate it (hot day, ac on, accelerating uphill in 6th). The Ultragauge was apparently lying and it runs totally fine so we chalked it down to false knock or the Ultragauge not reading the correct sensor. I have the one that’s supposed to read specific GM factory gauges so idk what’s up with it.


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