C10 6.0 T56 newbie

[Light_Chop]

Hey y'all newbie here. I finished building my C10 a few months ago with a 6.0 and T56 and it's been a blast. I got it tuned from a local guy and did an ok job I think but had some small issues. I've been wrenching for a long time but have never done any tuning whatsoever so I decided to finally start somewhere. I guess to start off its a 6.0 LQ4 bored .020 over with flat top pistons, Gen 4 rods, BTR truck norris cam, with 243 heads and stock truck intake and injectors. Since I am running a T56 and electric fans and AC, the tuner has the ECM showing as a 2002 Camaro with a 5.7. He mentioned something about the truck ECM doesnt have provisions for electric fans and a AC request to bump idle up so he had to write it as a 2002 camaro. Does this sound right? Would all the stock parameters be the same for the camaro 5.7 and the 2002 Silverado the engine came out of? Ill attach it but looking for advice if I need to start over or if this looks fairly ok for my setup. I appreciate all the help and patience as this is all new to me but I am excited to learn!

[gtstorey]

Stock truck injectors doesn’t really mean anything. Need to get the part number off of the injector.

[2xLS1]

Looks fine. The important things were changed to the 60s settings that I saw. Cylinder displacement is set for a 60. It doesn't reflect the .20 overbore but that is negligible. The stock 25 lb 60 injectors are going to be border line small for really high rpm but the rev limiter is only 6100. I'd say whoever set the tune up did a pretty good job. If it runs good I wouldn't change much of anything but a data log with fuel trims would tell a lot. I would bet they would be pretty good.

[Light_Chop]

Stock truck injectors doesn?t really mean anything. Need to get the part number off of the injector.

They are Multec 17113698

[Light_Chop]

Looks fine. The important things were changed to the 60s settings that I saw. Cylinder displacement is set for a 60. It doesn't reflect the .20 overbore but that is negligible. The stock 25 lb 60 injectors are going to be border line small for really high rpm but the rev limiter is only 6100. I'd say whoever set the tune up did a pretty good job. If it runs good I wouldn't change much of anything but a data log with fuel trims would tell a lot. I would bet they would be pretty good.

good to hear! I will take it out and data log tomorrow. For datalogging, is there a certain amount of time or driving I need to go? I assume a mix between easy street driving with maybe a couple good pulls? highway cruising?

[bk2life]

For datalogging, is there a certain amount of time or driving

about 5 to 10 miles is all you really need
at operating temp
and have your passnger watch the scanner and you try to fill as many blocks as possible.
Driveing at 70 mph for an hour on the higway does nothing but shows what your engine is doing at that rpm that speed.
you need to have stop and go, a bit of small WOT (staying under 4k prms) and driving up a hill etc.
It all has to vary.
Here is a graph i pulled up, try to fill as muich under 4k as you can.gtgtty6.jpg

[Light_Chop]

about 5 to 10 miles is all you really need
at operating temp
and have your passnger watch the scanner and you try to fill as many blocks as possible.
Driveing at 70 mph for an hour on the higway does nothing but shows what your engine is doing at that rpm that speed.
you need to have stop and go, a bit of small WOT (staying under 4k prms) and driving up a hill etc.
It all has to vary.
Here is a graph i pulled up, try to fill as muich under 4k as you can.gtgtty6.jpg

I just went for a short drive and logged it and now just seeing this. I will do another one in a few days when I get a chance after work but here is what I have for now.

[Light_Chop]

about 5 to 10 miles is all you really need
at operating temp
and have your passnger watch the scanner and you try to fill as many blocks as possible.
Driveing at 70 mph for an hour on the higway does nothing but shows what your engine is doing at that rpm that speed.
you need to have stop and go, a bit of small WOT (staying under 4k prms) and driving up a hill etc.
It all has to vary.
Here is a graph i pulled up, try to fill as muich under 4k as you can.gtgtty6.jpg

here are 2 logs I just did. The first one stopped randomly halfway through my drive. Sounds like I am getting some knock at lower RPM when I hit the gas.test drive3.hpltestdrive4.hpl

[horsepowerguru427]

here are 2 logs I just did. The first one stopped randomly halfway through my drive. Sounds like I am getting some knock at lower RPM when I hit the gas.test drive3.hpltestdrive4.hpl

Engine>spark>retard>burst knock retard> zero these 2 tables and see if it fixes the knock issue at tip in. Also, Put stock timing tables back in and start there! Use stock fbody 2000-2002 camaro or trans am. Those usually work well as a good starting point. You have a huge timing dip in both tables (which appear to match) timing dip.jpg Put stock idle tables back in and adjust them accordingly.idle map puke.jpg

Your VE table doesnt look realistic either. Its pleasing to the eye, but that doesnt correlate to an accurate representation.