[DeTomaso] efi horse power gain

Sun Aug 9 08:27:54 EDT 2009

Not a trivial task to mount a pump in the tank on a GT40.

You would effectively have to build a new tank (or modify the existing  
one internally) to create a baffled area for the pump inside the tank.  
Mike Trusty and I have spoke about this numerous times.

On 9 Aug 2009, at 2:36 AM, Ken Green wrote:

> I understand the logic for the separate surge tank, but Aeromotive  
> is one of the big guns in high power EFI fuel systems, and they  
> don't seem to talk about the separate tank.  They do make a big deal  
> about mounting the high pressure EFI pump in the fuel tank and one  
> of their tech guys told me that the pump works better and longer  
> submerged in the tank.
>
> Ken
>
> --- On Sat, 8/8/09, Kirby Schrader <kirby.schrader at gmail.com> wrote:
>
> From: Kirby Schrader <kirby.schrader at gmail.com>
> Subject: Re: [DeTomaso] efi horse power gain
> To: "Julian Kift" <julian_kift at hotmail.com>
> Cc: wkooiman at earthlink.net, "De Tomaso List" <detomaso at realbig.com>
> Date: Saturday, August 8, 2009, 3:33 PM
>
>
> Ah, yes.... another person doing IR EFI on a GT40. Let us know how you
> get on!
> Jack Houpe, Mike Trusty and myself all have a TWM setup with a TEC3r
> (Jack uses a TEC2) on our GT40's.
>
> Each one of us attacked the twin tank fuel feed setup differently. I
> need to re-plumb my fuel system. I have a 'better idea' than what I am
> using now.
>
> On 8 Aug 2009, at 11:23 AM, Julian Kift wrote:
>
> > I am in the initial stages of an EFI retrofit on the GT40 with a TWM
> > IR system. Even after getting a good deal on the TWM throttle bodies
> > and the ECU it has cost far more than I care to tell in $$ and time
> > (it's all the little stuff, plus the complexity of twin tanks in
> > that application requiring a swirl pot etc.). I constantly ask
> > myself why I didn't just buy a Weber 48IDF set up and may even still
> > do that.
> >
> > For the Pantera I have a Kinsler mechanical unit that I will convert
> > to EFI and the ECU will be the DTAFAST (out of the UK), it is as
> > capable as a MOTEC at about half the cost.
> >
> > http://www.dtafast.co.uk/
> >
> > Julian
> > > Date: Sat, 8 Aug 2009 10:54:49 -0400
> > > From: boyd411 at gmail.com
> > > To: wkooiman at earthlink.net
> > > CC: kirby.schrader at gmail.com; detomaso at realbig.com
> > > Subject: Re: [DeTomaso] efi horse power gain
> > >
> > > The EFI set up I am looking at and considering is basicaly the  
> same
> > > one Mad dawg has. It is a twm Induction stack (looks like webers)
> > The
> > > ECU I am considering is the FAST ( I spoke to dawg and this is a
> > more
> > > upto date ECU then he has) Another key component are the
> > injectors.The
> > > two things I don't have are Mike Trusty and the CASH! I'm  
> working on
> > > the cash but I don't know what to do about Mike.
> > > Boyd
> > >
> > > On Sat, Aug 8, 2009 at 9:57 AM, Will
> > Kooiman<wkooiman at earthlink.net> wrote:
> > > > There's a very dramatic initial negative increase.  In most
> > cases, the
> > > > initial increase is the carbureted HP * -1.
> > > >
> > > > After a year or two of fiddling around, EFI catches up.
> > > >
> > > > Then you get smart and buy Mike Trusty a plane ticket.  You
> > treat him right,
> > > > feed him, and brag about how your tires hook really well.  Then
> > M.T. fiddles
> > > > for 15 minutes, and finally EFI surpasses your carbureted HP.
> > > >
> > > > But then you need better tires.
> > > >
> > > > -----Original Message-----
> > > > From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com
> > ] On
> > > > Behalf Of Charles Engles
> > > > Sent: Saturday, August 08, 2009 8:46 AM
> > > > To: boyd casey
> > > > Cc: Kirby Schrader; detomaso at realbig.com
> > > > Subject: Re: [DeTomaso] efi horse power gain
> > > >
> > > > Dear Boyd,
> > > >
> > > >
> > > >                  Perhaps Kirby Schrader would comment on this.
> > He had one
> > > >
> > > > of the Haltech EFI systems installed on his already healthy
> > engine back in
> > > > the mid nineties and he has first hand experience about the
> > before and after
> > > >
> > > > performance.  He was very happy with the change.
> > > >
> > > >                             Warmest regards,  Chuck Engles
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "boyd casey" <boyd411 at gmail.com>
> > > > To: "De Tomaso List" <detomaso at realbig.com>
> > > > Sent: Friday, August 07, 2009 10:50 PM
> > > > Subject: [DeTomaso] efi horse power gain
> > > >
> > > >
> > > >> Can anyone tell me what kind of horsepower increase one could
> > expect
> > > >> from the addition of a quality professionally setup sequential
> > efi to
> > > >> a Cleveland  engine?
> > > >>
> > > >> Boyd
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