I have a 2002 Chevy Camaro Z28 that I just put a BTR LS1 Stage 3 Cam (231/244 .630"/.615" 112.5+2.5) in with supporting mods. Now I'm starting to tune and wonderings if anyone has a tune I could use for a baseline for idle and so I can start to tune because I'm struggling too. I'm completely new to tuning, any Help is greatly appreciated, and thank you in advanced.
Post the tune you have now.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Auto or manual? If auto I hope you put in a minimum 3600 stall converter with that cam.
I will post the tune in a bit but it is a Auto with a 3200 stall?which FTI said it was ok but if I need a 3600 ig I will
As Found 31624.hpt
This is the tune that is on the car from the previous owner.
See if this will get you idling. Just some basic rough adjustments for that cam size.Originally Posted by Evan Burghart
"I don't care how it runs as long as it chop chops at idle"
Thank you very much I will flash the tune and start it up when I get back to the car on Friday
I put this tune on it but it was about the exact same as it was before is there something I could be doing wrong?
You need to post some data logs so we can see what is going on.
We also need to know what supporting mods means. Is that headers and full exhaust, stock intake manifold or aftermarket? Stock injectors or aftermarket?
Because there is no way stock injectors will support that camshaft.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
idle 1.hplidle 2.hpl
here are 2 log its idling now... the mods on the cars are headers, true duals, "caddy lifters", pushrods, .660 valve springs, timing set, high pressure oil pump, but stock injectors because i was told they would be find but what would you recommend, i hope i didnt forget anything
2002-04 Z06 makes 405 HP with the same injectors. My own 99 F-body made 400RWHP with those 02 injectors and ran high 11s with a 224/228 cam shifting at 6500 rpm. They are rated at 28.7 and a little higher in the Vettes. While they are at their limit there they will work.
Last edited by 2xLS1; 03-22-2024 at 09:22 PM.
Ok thank you, what do you think i should do based on the 2 logs i posted above.
You need to get VE correct. The difference between MAF and DynAir shows that the VE table is being referenced. In fact, you will have better results running the SD OS.
Over/underspeed idle spark corrections are too high. Definitely don't want 4 degrees for 0 rpm error.
Injection Timing Normal table should be adjusted for your cam.
And why is Torque Management>Maximum Torque>vs. RPM zeroed? Set it to stock unless you have a TCC with a multi-disc clutch.
Last edited by SiriusC1024; 03-22-2024 at 11:56 PM.
Because it is a F-body not a truck/suv. That is how the stock table is on those.
Ah ok.
So do I need to change it or am i good?
You're good on that one. Sorry for the confusion.
idle 7.hplStartUp changes2 32324.hpt
i have made some adjustment from suggestions and i keep applying the MAF error every time but wondering what should be next. thanks for help in advanced
Seriously, tune the VE table. Look what happens at the idle dip. See the difference in MAF and DynAir? See what the O2 traces are doing?
dip.png
Last edited by SiriusC1024; 4 Weeks Ago at 08:20 PM.
OK i think i see what you are saying i didnt have dynair on my chart like you do thank you i will try to figure it out.
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