Tunning Help with LM7/4L60E

[senorc10]

How's it going guy's/gal's I am new to the forum and computer tunning and would like some help/guidance on tuning my lm7 engine with some basic mods. Pretty mechanically inclined and able to do some computer mods like Vats delete, Rear O2's, DTC. But lose some confidence when it comes to the spark, fuel, air and such. I understand the concept just applying it to the tune is what gets me. If any of you can please guide me in the right direction to get my truck started I would greatly appreciate it. I want to learn to do it myself so any help/tips/advise is welcomed. Thanks in advance. Here are the mods with the parts.

It came out of a 2001 chevy Tahoe with the RPO code LM7
Stock 4L60E the only modification to the transmission will be a corvette servo, Transmission cooler.
The engine and transmission are going into a 1964 c10 the only modifications done to the engine are as follows.
Camshaft https://www.summitracing.com/parts/hrs-198035-09
.080 in. wall pushrods
Trunnion bearing upgrade
LS6 valve springs
LS7 lifters
LS2 timing chain
Long tube headers
Emissions delete
A 4-corner steam kit.
42lbs injectors https://www.summitracing.com/parts/ado- ... 5#overview.
A cold Air Intake.
Electric fan kit from a 2005 GMC Yukon with an LQ4 with electric fans, so ill need to proper parameters for the tune.
And this fuel pump https://www.amazon.com/Installation-Rep ... hdGY&psc=1.
I am using Tuner ProRT, PCM Hammer, and Universal Patcher for my tuning. My goals for the tune/truck are max performance on 91/93 octane, and a loppy idle. I have not yet started the engine so I can't log anything or have a wideband installed.
my bin file- included
my XDF- included
OS ID- 12208322

[gametech]

There is good news and bad news. The good news is that you picked fuel injectors with proper gm format data available for them, and people have converted this gen4 data into gen3 data that will work with your computer. The bad news is that the cam you picked will not be easy for a novice tuner to properly tune for. The worse news is that even though it says "can be used with stock torque converter", that is a joke. It would be a fool's errand to attempt to tune or drive this with a stock converter. In other bad news, there is no way to know for sure if the Walbro you purchased from amazon is legit or a knockoff. I will attempt to attach a spreadsheet (credit to Blindsquirrel from the hptuners forum) that has the injector data you need.

[senorc10]

oh man this seems like it's going to be way to big of a bite for me to chew....I feel like I take one step forward and then two or three steps back and I'm getting discouraged. how can I convert the gen 4 to gen 3 data? I didn't really think that much of it when I bought the cam I figured that it would be an easy tune/thing to do....I kind of assumed that was the case with the torque converter I went on jegs and talked to their online person and they said that I should get one in the 28-3200 range but I would like to daily it or take it on trips so I don't want a crazy high stall .....my original plan was to manual swap it... but then I said F@k it use what you have save a little $$ so I went with the 4L60E. More than willing to do it myself and learn just need someone to tutor me on how to do this... I can offer you a FAT ASS BURNOUT hella shout outs and possibly might be able to compensate.

[gametech]

That spreadsheet already has the data converted to gen3 format, so all you have to do is pick the page with the part number of your injector, and enter in all the different data. Pay attention to the difference in tables regarding whether you are using a vac/boost referenced fuel pressure regulator or not. As for the torque converter, a good quality 3000rpm converter will drive almost like stock. Quality ones don't have that mushy takeoff feel that cheap ones have until you get to really high stall rpm numbers. That being said, I would certainly not expect a Jeg's branded, TCI, or other "discount" brand converter to fall into the good quality category. You did not mention tire size or rear gear ratio, but overall final drive ratio will also have a large impact on your drivability results. This forum is more about modifying software/hardware, and not really about tuning, so you will be much better served posing your questions on a forum with more actual tuners to help you out.

[V8fan]

save a little $$ so I went with the 4L60E

4l60e definitely not bad tranny but requires proper build to hold good power
No need to spend fortune for tuning parts -but it requires knowledge and experience to build it right to hold 500+ whp
Stock tranny at least needs shift kit to withstand some abuse
And dont turn off torque management -it literally saves tranny

[senorc10]

ok I will do that when i tune the tranny portion of my pcm

[senorc10]

Got it Thank you for your input I appreciate the help, that said believe it or not I got it started.... I feel like I kinda cheated because I used ChatGTP to get it started. I was able to turn it on I only ran it for like 5-10 seconds. That being said I did have to open the throttle open a tad to get it to stay on so I added a couple more steps to the IAC default B4401/maximum steps B4402....B4344 – Cranking Airflow B4307 – Startup IAC Airflow vs Temp...for the second attempt I will flash the bin today and try to start it the next couple days we are supposed to get rain in the bay tomorrow so we shall see if I am able to get it going. still have alot more actual tunning to do this was just a start up file but it worked!!! kinda sorta but happy it turned on! I have been working on this truck for some time so it's good to get it going.

In regard to the spreadsheet I'll have to take a look at it once I flash this bin and see if the tunes made to the bin will work or not. I do know that I have a return style fuel system. Yeah I know it won't be the best but I'm just going to ride this torque converter for the time being while I finish getting the truck put together, then I'll see about getting a torque converter for it and a shift kit or see what mods the tranny will need to hold up to minor abuse.... The tire is a still a tad undecided right now I have 17" steelies from a Tahoe on 245/45/17 tires and the gear ratio is a 3.07 if my memory serves me right.
I see I figured tuning was modifying the software. but can you tell me a couple of the thing's you guys do here? in terms of modifying software/hardware.

[Deuce]

oh man this seems like it's going to be way to big of a bite for me to chew....I feel like I take one step forward and then two or three steps back and I'm getting discouraged. how can I convert the gen 4 to gen 3 data? I didn't really think that much of it when I bought the cam I figured that it would be an easy tune/thing to do....I kind of assumed that was the case with the torque converter I went on jegs and talked to their online person and they said that I should get one in the 28-3200 range but I would like to daily it or take it on trips so I don't want a crazy high stall .....my original plan was to manual swap it... but then I said F@k it use what you have save a little $$ so I went with the 4L60E. More than willing to do it myself and learn just need someone to tutor me on how to do this... I can offer you a FAT ASS BURNOUT hella shout outs and possibly might be able to compensate.

How many horses hiding in this new engine combo would you estimate?
I've done a few things to my 4l60e and am happy to share if it's relevant. (Motor should be around 500n/a, and I'm drag racing early January, hopefully everything stays together)

[V8fan]

How many horses hiding in this new engine combo would you estimate?
I've done a few things to my 4l60e and am happy to share if it's relevant. (Motor should be around 500n/a, and I'm drag racing early January, hopefully everything stays together)

There is a thread here below about rebuild 4l60e
You can share ur knowledge about it
I also build several 4l60e and many similar 4 and 5spd
Its not so bad tranny as many used to talk about
LS1tec also has a good thread about free mods (experienced builders share some their knowledge)
I personally took from it overrun mod ) Im not pro builder but I 'bite' old guys to make them more talkative )

[Deuce]

How many horses hiding in this new engine combo would you estimate?
I've done a few things to my 4l60e and am happy to share if it's relevant. (Motor should be around 500n/a, and I'm drag racing early January, hopefully everything stays together)

There is a thread here below about rebuild 4l60e
You can share ur knowledge about it
I also build several 4l60e and many similar 4 and 5spd
Its not so bad tranny as many used to talk about
LS1tec also has a good thread about free mods (experienced builders share some their knowledge)
I personally took from it overrun mod ) Im not pro builder but I 'bite' old guys to make them more talkative )

Link to the thread?