[DeTomaso] Intake port spacing

Tue Mar 22 16:07:48 EDT 2022

Hi Robert- long time no hear! Given your location, Haltech used to be the go-to operation some years ago, even for some pro Ford teams. Until Haltech pulled their operation out of the US entirely and went back to Oz- their home base. Nowadays, I hear good things about Microsquirt and a few others. A few have used hacked stock ECUs. Be really good at electronics if you dive into this pool! The conditions in a typical engine bay are extremely hostile to electronics (heat, vibration, EMF and so on). 
The SVO intakes have stock 351-C port position but at least some intakes from that era are shifted backwards an inch or so as well as being raised, for even better fuel distribution. I use an offset air cleaner base to compensate for this with my A-3 heads & intake. 

-----Original Message-----
From: Robert Stroj <npdrs at maui.net>
To: detomaso at server.detomasolist.com
Sent: Mon, Mar 21, 2022 7:04 pm
Subject: [DeTomaso] Intake port spacing

Hi, working on building an 8-stack ITB system using eight 52mm Bosch
Electronic Throttle Bodies (available at very reasonable cost as they are
OEM on Ford 1.6l Ecobust).

Main motivation for this project is to eliminate mechanical play in linkage
system (keeping them balanced) as well as have a possibility of adjusting
progressive throttle movement and improving drivability at very small
throttle opening. 

Does someone knows of a good stand-alone system to control 8 ETB's; after
searching the net found lots of options for single an sometimes double TB's
but failed to find an 8 channel system.
Would need an independent system as my XFI2.0 does not have option of ETB
control, so only communication between the two would be TPS output to XFI
and ideally Idle Valve output from XFI to throttle controller to use
controlling the idle. 

As well, please if someone could confirm the distance between the intake
ports on Yates C3 heads (center to center); believe this is the same for any
351c heads?
Strangely, looked a lot on the net and could not find any drawing showing
this distance and do not have on hand any intake manifold or intake manifold
gasket to check.
Need this measurements as it could be there is some clearance issues to fit
the throttle bodies next to each other as they are 117mm wide and if I am
correct, intake ports are 111mm center-to-center (please if someone could
confirm).

If this project becomes successful will be happy to share the details.

Thanks, Robert

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-------------- next part --------------
   Hi Robert- long time no hear! Given your location, Haltech used to be
   the go-to operation some years ago, even for some pro Ford teams. Until
   Haltech pulled their operation out of the US entirely and went back to
   Oz- their home base. Nowadays, I hear good things about Microsquirt and
   a few others. A few have used hacked stock ECUs. Be really good at
   electronics if you dive into this pool! The conditions in a typical
   engine bay are extremely hostile to electronics (heat, vibration, EMF
   and so on).
   The SVO intakes have stock 351-C port position but at least some
   intakes from that era are shifted backwards an inch or so as well as
   being raised, for even better fuel distribution. I use an offset air
   cleaner base to compensate for this with my A-3 heads & intake.
   -----Original Message-----
   From: Robert Stroj <npdrs at maui.net>
   To: detomaso at server.detomasolist.com
   Sent: Mon, Mar 21, 2022 7:04 pm
   Subject: [DeTomaso] Intake port spacing
   Hi, working on building an 8-stack ITB system using eight 52mm Bosch
   Electronic Throttle Bodies (available at very reasonable cost as they
   are
   OEM on Ford 1.6l Ecobust).
   Main motivation for this project is to eliminate mechanical play in
   linkage
   system (keeping them balanced) as well as have a possibility of
   adjusting
   progressive throttle movement and improving drivability at very small
   throttle opening.
   Does someone knows of a good stand-alone system to control 8 ETB's;
   after
   searching the net found lots of options for single an sometimes double
   TB's
   but failed to find an 8 channel system.
   Would need an independent system as my XFI2.0 does not have option of
   ETB
   control, so only communication between the two would be TPS output to
   XFI
   and ideally Idle Valve output from XFI to throttle controller to use
   controlling the idle.
   As well, please if someone could confirm the distance between the
   intake
   ports on Yates C3 heads (center to center); believe this is the same
   for any
   351c heads?
   Strangely, looked a lot on the net and could not find any drawing
   showing
   this distance and do not have on hand any intake manifold or intake
   manifold
   gasket to check.
   Need this measurements as it could be there is some clearance issues to
   fit
   the throttle bodies next to each other as they are 117mm wide and if I
   am
   correct, intake ports are 111mm center-to-center (please if someone
   could
   confirm).
   If this project becomes successful will be happy to share the details.
   Thanks, Robert
   _______________________________________________
   Detomaso Email List is not managed by POCA
   Posted emails must not exceed 1.5 Megabytes
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   use the links above.
   Members who post to this list grant license to the list to forward any
   message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

References

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