0411 PCM Swap/Opti Delete... Nothing Else Needed! Video inside.

Reply Subscribe

Thread Tools

Search this Thread

Apr 23, 2026 | 09:19 AM

#21

Cody-Knutson

Registered User

Joined: Apr 2026

Posts: 3

Likes: 0

thank you fast355. I am repinning a 96 b body lt1 harness to run the vortec computer. my other big question is the injector flow rates. i see the vortec has 23.1 lb injectors, and ive heard the lt1 has 24.87 lb injectors? think its worth changing in the tune, or should i wait till ive got the fuel trims recorded? going to tune the ve tables and maf for sure.

Apr 24, 2026 | 09:23 AM

#22

Supercharged111

TECH Resident

iTrader: (1)

Joined: Dec 2015

Posts: 930

Likes: 152

From: MI

Quote:

Originally Posted by LilJayV10

I'm really interested in reading more about this. Seems a lot cheaper than doing a full 411 swap.

With this you're running it off of a 411 so how is this not a "full" 411 swap?

Quote:

Originally Posted by Cody-Knutson

Absolutely. EVERYTHING in the tune revolves around the injectors. It is literally the very first parameter you set when tuning a 411.

Apr 24, 2026 | 12:34 PM

#23

Cody-Knutson

Registered User

Joined: Apr 2026

Posts: 3

Likes: 0

Quote:

Originally Posted by Supercharged111

With this you're running it off of a 411 so how is this not a "full" 411 swap?

Absolutely. EVERYTHING in the tune revolves around the injectors. It is literally the very first parameter you set when tuning a 411.

thanks for confirming that fast355. if the injector data is skewed, wont that throw off the calculated g/s airflow, hence throwing the ignition timing off?

I am playing with a p01 0411 computer. Isn't the black box different, because it uses map instead of calculated airflow for timing? plus the resolution on speed density tables is pretty bad compared to the newer p01, from what i see.

Reply Subscribe

Reply Share

First
Prev
2 / 2
Next
Last