[Supras] LEX-stock AFM comparison

[Steve Michael]

I'll agree with the post that recommended Arlene's detailed information
about Fuel & Air.  She's also the A/T guru.

Dave Hall got the best out of the Lexus AFM & stocker injectors, taking
advantage of the rich ECU settings and making sure he got FIVE things right:
1. AFPR. Get one and a small fuel pressure gauge to attach to it. No
interior gauge is needed (now that I'm running a 60mm on my Apillar.
Worthless, but pretty).
2. Stock 440's, but send them all to RC engineering and get them all benched
to at least 455 across the board.
3. Walbro fuel pump. The stocker MkIII pump sucks, even with the voltage
regulator bridged at 12v.
4. Fuel computer, like the Apexi Super AFC, I or II, or similar unit.
5.  TUNING, TUNING, TUNING.  On the dyno with PUMP gas, a wideband o2 and
someone who knows what they're doing.

With these mods (and better intake & exhaust), I'm ~300 RWHP and 362 RWTQ to
my 90T...with the STOCKER CT Peashooter (which explains the torque).
With the current mods on the car, I'm expecting to tune it out to ~325/375
before I top out on the turbo.

To answer your question, Ray...You don't have to do ALL of those things, but
you MUST do some of them to safely increase your HP.

Steve in N.Scottsdale...Sarah, 90T/A/T
July Covergirl, Supras Invade Las Vegas Calendar, 2006.

> Date: Tue, 10 Oct 2006 16:52:56 +0100
> From: "Supras Ireland Admin" <admin at supras-ireland.net>
> Subject: Re: [Supras] Lex AFM
> To: "ray bleakley" <ripinray at hotmail.com>, <supras at supras.com>
> Message-ID: <00c001c6ec84$294d2e40$34ea0c56 at marts>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Ray,
> As Jeff says, IMHO the AFPR is one of they key parts needed in tuning, we
> use his kit on a few 7M's as its Plug'n'play to speak, and gives us the
> control we need when running different sized injectors, either to raise FP
> when reaching max duty cylcle, or to aid tuning in closed loop when
running
> seriously big injectors. Have also used the kit on a stock system to get
the
> most outta 440's. Defo worth the investment. But for all the of a set of
> 550cc injectors, i would rather be running on the safe side rather than
> playing on the dangerous side. Without a good wideband and data logging,
you
> wont really know how much your on the limit of the injectors
>
> Marty
> Supra Spercialists Ireland
> www.supraspecialists.co.uk
>
> ----- Original Message -----
> From: "ray bleakley" <ripinray at hotmail.com>
> To: <supras at supras.com>
> Sent: Monday, October 09, 2006 10:10 PM
> Subject: [Supras] Lex AFM
>
>
> > Hi there could anyone please tell me if it is possible to use a Lexus
AFM
> > without upgrading  injectors, pump and fuel pressure regulator? Thanks
for
> > the help guys!
> >
> > ray, ireland, 89T