[DeTomaso] IR FI system

Thu Oct 22 19:58:27 EDT 2015

I suggest goggling "procomp law suits", then decide if you trust this guy.
Ken
       From: Robert Stroj <npdrs at maui.net>
 To: 'Daniel C Jones' <daniel.c.jones2 at gmail.com> 
Cc: 'POCA list' <detomaso at poca.com> 
 Sent: Thursday, October 22, 2015 4:48 PM
 Subject: Re: [DeTomaso] IR FI system

Hi,

Thanks a lot for your comments!

I did get to talk to the actual owner of the company (who seems to be same person that develops the parts); you are right, it is the same person that owns Procomp brand.
It is Australian company based in NSW and apparently all the development work is done there while manufacturing is outsourced in different places, including China.
I believe throttle bodies are made in China. 

"You would have to weld up a 2V intake to make it seal against Yates heads."
After talking to him again I believe it could be possible to slide the whole intake higher up to match the port holes on Yates C3.
Apparently the bolt holes are elongated and it is possible to mount it onto CHI 3V heads; as it is split design it is possible to slide it up on the head.

"50mm = 1.9685 inches which is a lot smaller than your Yates intake valves."
Yes, my intake valves are 2.1 inch, but, at the same time my intake ports are ported to 39x51mm, cross section area (taking into account rounded corners) is 2.95 square inch while 50mm bore of the throttle body would make 3.05 square inch.
Would that mean that 50mm throttle body could be a good match or is it better to have throttle body larger than intake port on the head?

I am waiting for them to provide me with intake manifold template and will share it if/once I get it.
Since the price is good I might in the end take a chance and, in worst case, I could later replace throttle bodies with different once that would fit same IDA style manifold.

All the best, Robert

-----Original Message-----
From: Daniel C Jones [mailto:daniel.c.jones2 at gmail.com] 
Sent: Thursday, October 22, 2015 7:51 AM
Cc: POCA list
Subject: Re: [DeTomaso] IR FI system

> My understanding is that they somehow use Procomp name or sales 
> network
to sale their parts in US.

Speedmaster = Procomp.

http://www.semashow.com/press/2014/09/14/speedmaster-new-brand-manufactured-by-procomp-electronics-new-look-new-business-mot

The Procomp website redirects to Speedmaster now.  Is he claiming the parts are manufactured in Australia or just that the person or company that commissioned them is based in Australia and the parts are made in China?
Being made in China isn't necessarily a bad thing but being made in China to Procomp standards of design and quality control is.

> According to the tech guy in Australia the 351C manifold is made to 
> fit
2V heads and would have enough material to port it to fit 4v or my Yates C3 heads.

You would have to weld up a 2V intake to make it seal against Yates heads.
The bottom of a 2V port is way lower than the bottom of a Yates port.  Take a Yates intake gasket and lay it on top of a 2V intake gasket.  Note how far off the port locations are and the areas which will need to be welded up and how far the roof will need to be raised.  Make sure you leave enough material for a gasket to seal at the top off the port.  Their engineer should be able to provide you with port template with the outline of the ports and the bolt hole locations.

> The only throttle body size they offer at the moment is 50mm; would 
> this
be adequate for 416ci engine that made 675Hp at 6500rpm on engine dyno with Holley 850 carburetor on single plane high intake.

50mm = 1.9685 inches which is a lot smaller than your Yates intake valves.
I'd expect them to limit peak power.

Dan Jones

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-------------- next part --------------
   I suggest goggling "procomp law suits", then decide if you trust this
   guy.
   Ken
     __________________________________________________________________

   From: Robert Stroj <npdrs at maui.net>
   To: 'Daniel C Jones' <daniel.c.jones2 at gmail.com>
   Cc: 'POCA list' <detomaso at poca.com>
   Sent: Thursday, October 22, 2015 4:48 PM
   Subject: Re: [DeTomaso] IR FI system
   Hi,
   Thanks a lot for your comments!
   I did get to talk to the actual owner of the company (who seems to be
   same person that develops the parts); you are right, it is the same
   person that owns Procomp brand.
   It is Australian company based in NSW and apparently all the
   development work is done there while manufacturing is outsourced in
   different places, including China.
   I believe throttle bodies are made in China.
   "You would have to weld up a 2V intake to make it seal against Yates
   heads."
   After talking to him again I believe it could be possible to slide the
   whole intake higher up to match the port holes on Yates C3.
   Apparently the bolt holes are elongated and it is possible to mount it
   onto CHI 3V heads; as it is split design it is possible to slide it up
   on the head.
   "50mm = 1.9685 inches which is a lot smaller than your Yates intake
   valves."
   Yes, my intake valves are 2.1 inch, but, at the same time my intake
   ports are ported to 39x51mm, cross section area (taking into account
   rounded corners) is 2.95 square inch while 50mm bore of the throttle
   body would make 3.05 square inch.
   Would that mean that 50mm throttle body could be a good match or is it
   better to have throttle body larger than intake port on the head?
   I am waiting for them to provide me with intake manifold template and
   will share it if/once I get it.
   Since the price is good I might in the end take a chance and, in worst
   case, I could later replace throttle bodies with different once that
   would fit same IDA style manifold.
   All the best, Robert
   -----Original Message-----
   From: Daniel C Jones [mailto:[1]daniel.c.jones2 at gmail.com]
   Sent: Thursday, October 22, 2015 7:51 AM
   Cc: POCA list
   Subject: Re: [DeTomaso] IR FI system
   > My understanding is that they somehow use Procomp name or sales
   > network
   to sale their parts in US.
   Speedmaster = Procomp.
   [2]http://www.semashow.com/press/2014/09/14/speedmaster-new-brand-manuf
   actured-by-procomp-electronics-new-look-new-business-mot
   The Procomp website redirects to Speedmaster now.  Is he claiming the
   parts are manufactured in Australia or just that the person or company
   that commissioned them is based in Australia and the parts are made in
   China?
   Being made in China isn't necessarily a bad thing but being made in
   China to Procomp standards of design and quality control is.
   > According to the tech guy in Australia the 351C manifold is made to
   > fit
   2V heads and would have enough material to port it to fit 4v or my
   Yates C3 heads.
   You would have to weld up a 2V intake to make it seal against Yates
   heads.
   The bottom of a 2V port is way lower than the bottom of a Yates port.
   Take a Yates intake gasket and lay it on top of a 2V intake gasket.
   Note how far off the port locations are and the areas which will need
   to be welded up and how far the roof will need to be raised.  Make sure
   you leave enough material for a gasket to seal at the top off the
   port.  Their engineer should be able to provide you with port template
   with the outline of the ports and the bolt hole locations.
   > The only throttle body size they offer at the moment is 50mm; would
   > this
   be adequate for 416ci engine that made 675Hp at 6500rpm on engine dyno
   with Holley 850 carburetor on single plane high intake.
   50mm = 1.9685 inches which is a lot smaller than your Yates intake
   valves.
   I'd expect them to limit peak power.
   Dan Jones
   _______________________________________________
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   Posted emails must not exceed 1.5 Megabytes
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References

   1. mailto:daniel.c.jones2 at gmail.com
   2. http://www.semashow.com/press/2014/09/14/speedmaster-new-brand-manufactured-by-procomp-electronics-new-look-new-business-mot
   3. mailto:DeTomaso at poca.com
   4. http://poca.com/mailman/listinfo/detomaso_poca.com