Speed Density larger throttle body, what EEC-IV parameters to change?

W

wwhite

New member
Hi, have a stock 351w, bolting on larger throttle body.
Background info, have a built 351w, heads, cam, intake, headers, etc. tuned no problem with stock throttle body.

Now, I am learning to tune JUST idle air, etc. with only a larger throttle body. I think will help once I do the engine swap later.

So, with specifics, looks like Throttle Body Air Flow is ITHBMA. Different bins have different values.

Currently my bin has it set at .6599121 lbs/min.
Others I see, at stock are .6699... lbs/min.

How to calculate what is needed?
Also, what other scalars, functions and tables need to updated for proper tune, with just changing out the TB?
 
By using the term bin I'm assuming you have a quarterhorse? Not alot of those guys on here anymore. The Tweecer was more used. However you shouldn't really need to change much at all for a larger TB on a stockish truck.

Sent from my moto z3 using Tapatalk
 
You must log in or register to reply here.
Back
Top