[Diy_efi] Greetings...and Throttle Bodies

[Bruce]

----- Original Message -----
From: "Bob Anderson" <sandoren at worldnet.att.net>
> I have a Whipple charger on my L05.  I'm pretty sure the additional air
from
> an increased air flow TB would not be a problem (except possibly the cfm
> rating on my airfilter <g>).

Since the S/C is forcing more air thru the engine, how does the engine get
more fuel to go with the additional air?.

> Would just more air flow create a lean situation?

The injectors just flow so much fuel, if you increase the air flow thru the
motor by 20%, do you have an additional 20% of fuel?.

> Do you think higher rated (over stock) injectors would also be necessary?

Depending on how much capacity your's have, vs how much the engine needs.
The fuel and air must be both optimised for max performance.

> I'm new at this, so I'm assuming *recalibration* would be reprograming the
> PROM for the changes to the hardware (?)

Yep,
Your Welcome
Bruce

> Thanks for your reply,
> Bob

> ----- Original Message -----
> From: "Bruce" nacelp at bright.net
> Subject: Re: [Diy_efi] Greetings...and Throttle Bodies
> > Hard to tell, all engines vary some.  In closed loop there might be
enough
> > tolerance for the corrections to get it to work.  At WOT if your engine
> will actually use the addition air flow, then you'll need to do some
> > recalibrating.
> > Often, with almost stock engines, a large TB gives you the sensation of
> > better tip in performance, but are actually slower at WOT.
> > Bruce

> > ----- Original Message -----
> > From: "Bob Anderson" <sandoren at worldnet.att.net>
> > Subject: [Diy_efi] Greetings...and Throttle Bodies
> > > Question:  Will I need to recalibrate my ECM if I replace my trottle
> body with a Turbo City unit that allows 10-20% more air flow?...or is just
a
> > > simple swapping of parts?
> > > Bob Anderson



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