Thread: 5.8* kr?!

Hp estimates are pretty lame... How much timing were you seeing? What was the NB reading?

Also which fuel trim were you watching?

I didn't log timing, I will have to set that for next time. I'm not sure what NB stands for. I was watching LTFT

NB means what you O2 mV were reading.

Not sure on that either. I'll have to look over what I should be logging. Other then that, how are my fuel trims looking? I know nothing about how those should read.

Ya I'll have to see if I can get to a local dyno to see what my actual numbers are. I am using torque pro not light.

Can anyone explain why at the gas pump that the pump thinks I have a full tank when I could be on empty? It's so annoying sitting at the pump and having it click off every 20cents.

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Stop sticking the pump nozzle into the filler neck so far...!

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NB = Narrow Band = O2 sensor

I've checked torque pro against hpt and it's pretty good. Not as quick, but numbers were accurate. Problem (my $.02) here is OP is under the impression that a 3" DP with a box tune will eliminate KR. Seeing as there was no benchline established prior to the tuned PCM and DP being added, there's no way to know if in fact those two mods helped lower KR at all. I will assume it did as even higher KR at stock, no mods is normal too. Your chasing ghost's IMO...

*A note on Torque Pro: you can record your drive/runs by setting which pid's to record, save the file (cvs) and post for others to see.


I know prior to headers on stock pulley I seen 8*+ KR... Even with my mods, still got blips up to 3* sometimes (bad fuel my guess)... Prior to tuning it down on an even smaller pulley. But you can certainly benefit from checking things such as fuel pressure, change filter, plugs, clean injectors, etc., etc. to try and identify any issue possibly causing knock.

good luck!

The pumps I go to don't even have long necks though Lol but I'll see what I can do. Thanks for the tips as well. I'll go through and log a bunch more pid's and see what I come up with. Just gotta wait until I get the damn plog installed, if it will ever happen lol

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It happened again the other day. Put the pump in about half way and it kept clicking off. Frustrating

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Did a run today with Plog installed also added some Turbo 108 Octane Booster to see if that actually helped with my knock issue.

Full boost was 10.10psi at which I had 5.8* of knock at 5981rpm. Timing Advance was at 10, fuel trim at 0

Max knock was at 5285rpm, 7.4psi boost, 6.8* of knock. Timing Advance 10.5 and fuel trim also at 0.

Are these ok number's with my setup? Again setup is in my sig. I think the octane booster helped me get up to 10.10psi on stock pulley.

No offense. But you claiming octane booster helped you get more boost is prolly the dumbest thing I have read all week...

Well I don't know, I was thinking that's a lot of boost for a stock pulley and just an upgrade of a plog. My max before that was a little over 8psi

I know that did sound dumb about the octane booster, but how did I get two more psi with just a plog? Possibly more timing with less kr?

Boost is a measure of restriction.. Did your shift points gets raised?

Weather plays a factor

Octane booster did nothing to increase that.

Ya I think my shifts went closer to redline on this run. The booster I got did have MMT. I'll have to try a run without it and see what I get.

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Well did you change your tune??

The colder it is the more boost you'll run.