Tuning for Larger Fuel Injectors

[thehemi]

In preparation for my turbo swap project, I'm converting my S10
to MPFI (using the marine intake). Stock injectors are 23#, and
I'm going to be swapping in 60# MotoTrons. With only the thing
changing is the size of the fuel injectors, what do I need to start
modifying in the tune? And what do I need to monitor post-swap
so that I can fine tune the parameters appropriately?

I'm new to tuning. Any how-to guides or instructions appreciated.

[thehemi]

There's no tutorials, how-tos or instructional guides on this topic?
The engine remains the same, the only change is the fuel injectors.

[thehemi]

No one has a before and after tune for just an injector swap?

[MMGT1]

There is a table that will help you set up your injectors in the very first sticky in v6 engine tuning.
First sticky...first post...first link

[thehemi]

There is a table that will help you set up your injectors in the very first sticky in v6 engine tuning.
First sticky...first post...first link

Touché. The details are always in the last place you look.

Where is this MAP vs Inj Flow table? I cannot find it anywhere.
I see where I change the fuel injector size, but I cannot find the
table mentioned. Do I need to touch any of these pulse values?
I thought with a larger injector, I would also need to lower a PW
so the overall amount of fuel remains the same? Or is that what
the MAP vs Inj Flow table is taking care of for me?

PS- Thanks for the help!

[mtcrusan]

I think the table is under Engine > Fuel Control > General > Injector Control > Flow Rate vs. KPA

[thehemi]

I think the table is under Engine > Fuel Control > General > Injector Control > Flow Rate vs. KPA

I guess this must vary based on the computer or something?
Under that section my option is Flow Rate Modifier vs Volts.

[thehemi]

No other help here? The chart in the sticky isn't in my tune.
Other than changing the injector size value, what else should
I need to adjust in order to keep the system flowing correctly?

[starks]

besides changing the flow rate numbers (i figured out the difference between stock and my new ones, and multiplied my stock table by that number) you will need to do some maf tunes that will fine tune the fueling back where it needs to be.

besides that, i didn't make any other changes. but tunning a 3800 is quiet a bit different then alot of other cars, as we dont have access to alot of tables.