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OK, so I very much appreciate your replies. I've kinda gone down the rabbit hole a bit trying to understand this. I think I get it for my yukon, but now I'm questioning how I tune my other car. ls3...

how do I use maf g/s to come up with airmass for my timing logs?

there's no defined ve table or fueling adjustments on this so I'm not trying to tune it per say. well there is pe target a/f I...

yes, I do have mass airflow sensor in grams/s.

yeah, that's the thing. I have the option to log dynamic airflow on my c6 ecm, but not this one. no knock retard log, nothing. I can in other scanners, even a 5$ phone app has the knock retard.

...

I'm guessing that's a formula for hpt scanner to make airmass log match the editor scale?

but what perimeter do I need to be logging? I don't have anything called airmass on my list?

so I noticed today I get some timing retard at highway cruise high load before it down shifts. I'd like to try and pull some timing where this retard is happening. hpt doesn't log retard timing for...

13534128 is the oe part number. I got mine off ebay for 125$ cause it was just a test kinda thing. wasn't sure it would fit.

they are not a direct fit in a c5/c6 or the one year z28 that uses the...

I do have a amp clamp. this is at idle, with a 10% under drive crank pulley and stock pulley that come on the alt.

it's upside down lol but that's 101amps

there is a small difference between the c5 and c6 alt. you'll have to Google it, but c5 you should buy from gm, or have yours rebuild. not a auto parts store one. something throws codes, don't...

man that's a bummer. I've done a much something like that but on a much cheaper sbc engine. much less hp too..

hope you get it running.

did you put a non afm cam in it without any tuning of the ve tables you can't access? if so which cam and how does it run?

did you end up doing the cam swap?

thanks for the info, but seems no one makes a new regulatory for this newer alt. like I can't even find a replacement one for it even with the part number off from it.

guess they haven't caught up...

spark plugs? yeah just some oem replacements off rock auto. I'd have to pull a plug wire to get a part number.


seems there's a company that makes a box that ties into the can bus and tells the...

pic of it putting out 92amps at 750 rpm with a bigger than stock alt pulley and 10% under drive crank pulley.

solid 13.7v at the alt, about half a volt drop at the battery with that much load, and...

so today I put the tech 2 on it and looked around.. it has the return duty cycle % just fine to tell the ecm the load, but it just doesn't turn the L terminal on by itself.

if I command it on it...

I have an mostly stock c6, bcm still fitted. the stock alt on these cars is kinda junk. aftermarket is super expensive and still kinda blah. it's a 4 pin setup with 12 sense wire, a turn on signal at...

I figured as much, but couldn't hurt to ask.

is there an email or someplace to ask to see if a perimeter option is in a ecm but just not defined in the editor?

I see a lot of ecm's have the drop down box option to select relay control or pwm...

https://youtu.be/qiOBJj2xZbs

this guy explains it pretty well
he's wrong when he says hp doesn't work with the hybrids. it 100% does, it's just labeled backwards.

but his vlom mod and clipping...

I adjusted my speedo to correct for tire size and turned off the afm. that's all I did.

I think it's worth it over the plug in range extender thing. maybe if you can find a used v1. on a board for...

it was referenced at the bottom of. this post.

https://forum.hptuners.com/showthread.php?58429-2008-Chevrolet-Tahoe-Hybrid-support&p=706167&viewfull=1#post706167


I feel like if you want to...

I'm pretty sure he was referring to the afm. as in if I wanted to one set further than just changing the enable/disable in the drop down box, I could also set the rpm to 0 so it was off for 2...

just a quick update on the c7 fan upgrade on the c6. just back from the 2nd track day, I had also moved to an oil cooler in the radiator end tank so much more heat to dissipate, but it worked...

you ever get that alt up and running?