[DeTomaso] Speed Demon 750 anyone?
Charles McCall
charlesmccall at gmail.com
Thu May 4 05:39:17 EDT 2017
I selected Chuck Nuytten (he's still around and easy found with Google)
because of an experience reported by Chuck Engles. He can correct me if my
memory has failed.
He sent his carb to this outfit, who configured it according to their
procedure. Chuck then mounted it on his engine and spend a couple of days
dyno testing, adjusting the carb to see how close it was to optimal. I
think that after 2 days he managed to squeeze a whole 1hp and 2ft/lb more
out the engine by fine tuning. That means that Nuytten's configuration was
close enough for me!
On Thu, May 4, 2017 at 11:06 AM, Henrik Svensson <
henrik.svensson at intelligo.se> wrote:
> Hi all,
>
> Thanks for all feedback, I will do as Mike, dt and Charles say. I will
> start by asking for a questionnaire and see how much I remember about my
> engine :)
>
> /Henrik
>
> -----Original Message-----
> From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On
> Behalf Of Charles McCall
> Sent: den 4 maj 2017 08:57
> To: Mike Drew <MikeLDrew at aol.com>
> Cc: Detomaso <detomaso at server.detomasolist.com>
> Subject: Re: [DeTomaso] Speed Demon 750 anyone?
>
> If you do decide to buy a new carb, I'd second the suggestion to not buy
> an "off the shelf" carb. I bought a fancy carb from one of the Pantera
> vendors that was "tuned for a Pantera". But what is a Pantera? A
> bone-stock, 1974 engine with all the smog gear installed? A 1971 high
> compression engine? A
> 393 stroker? None of these engines will have the same needs, and a carb
> tuned for one will work poorly on another.
>
> The carb I bought worked horribly on my engine, which is far from stock.
> After a lot of fiddling, I sent it to Chuck Nuytten, who does the same
> thing Mike comments. There's a 5 page questionnaire about your motor, and
> he tunes it and sets it up for your specific use. (It's also who milled the
> choke off for better flow). I took it out of the box, put it on, and the
> engine ran fantastic ever since.
>
> Especially if your motor is a little different, I'd look at the option of
> a carb configured for your specific engine instead of "one-size-fits-all"
>
> On Wed, May 3, 2017 at 11:36 PM, Mike Drew via DeTomaso <
> detomaso at server.detomasolist.com> wrote:
>
> > Dan Jones recommends Competition Carbs out of Nevada. That's what I
> > have on my motor and its been great. No 'off the shelf' buying--you
> > send him a full spec sheet on your engine and exhaust and be builds a
> carb to suit it.
> >
> > Not overly expensive either.
> >
> > Mike
> >
> > Sent from my iPhone
> >
> > On May 3, 2017, at 14:34, Corey Price <coreyjprice at gmail.com> wrote:
> >
> > > Henrik,
> > > The Demon carbs aren't known for their reliability.A I would
> recommend
> > > an Holley Street Demon 625 or 750 or a Holley-type carburetor that a
> > > tuner has worked on (such as a Quickfuel); many of the Pantera
> vendors
> > > can help with a "tuner" carburetor.
> > > Corey
> > >
> > > On Wed, May 3, 2017 at 3:10 PM, Henrik Svensson
> > > <[1]henrik.svensson at intelligo.se> wrote:
> > >
> > > Hi Charles,
> > > No, I guess that is more of an excuse to by something new to the
> > > car. I'm a bit curious of what a new carb can do to my engine. But
> > > if someone tells me an Edelbrock 1411 is a good carb for my engine
> > > spec I guess I can live without the choke even if it makes life in
> > > Sweden a bit easier :)
> > > /Henrik
> > > Sent from my iPhone
> > >
> > > 3 maj 2017 kl. 20:51 skrev Charles McCall
> > ><[2]charlesmccall at gmail.com
> > >:
> > > The only reason you want to buy a new carb is because the choke
> stopped
> > > working?
> > > I had mine milled off 15 years ago and haven't missed it since. I
> don't
> > > have
> > > any cold starting problems, and the engine warms up pretty quickly.
> > > Granted,
> > > you live in Sweden and I live in Spain, where the temperature is a
> > > little
> > > different, but even in cool weather I don't really miss a choke. Are
> > > you
> > > sure it is necessary?
> > > -----Original Message-----
> > > From: DeTomaso [mailto:[3]detomaso-bounces at server.detomasolist.com]
> On
> > > Behalf
> > > Of Henrik Svensson
> > > Sent: miA(c)rcoles, 3 de mayo de 2017 16:49
> > > To: [4]detomaso at server.detomasolist.com
> > > Subject: [DeTomaso] Speed Demon 750 anyone?
> > > Hi all,
> > > I have a Edelbrock 750 (1411) on my car. It was placed there 2005 by
> > > the
> > > previous owner. Since then I have done a rebuild and it's now a 393
> > > with AFD
> > > 4v 64cc heads and a cam with intake duration of 239 and exhaust of
> 248
> > > (0.050).
> > > The Edelbrock have been working fine, not that I have much to compare
> > > with,
> > > but now the choke stopped working and I think I'll buy a new one
> > > instead of
> > > fixing the old one. I have been looking at the
> > > SPEED DEMON 1402020VE 750 CFM, anyone with experience of that carb?
> > > Or any other opinions about what carb to put on an engine with these
> > > specs?
> > > Thanks!
> > > Henrik
> > > #1477
> > > _______________________________________________
> > > Detomaso Email List is not managed by POCA
> > > Posted emails must not exceed 1.5 Megabytes
> > > DeTomaso mailing list
> > > [5]DeTomaso at server.detomasolist.com
> > > [6]http://server.detomasolist.com/mailman/listinfo/detomaso
> > > To manage your subscription (change email address, unsubscribe, etc.)
> > > 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.
> > > _______________________________________________
> > > Detomaso Email List is not managed by POCA
> > > Posted emails must not exceed 1.5 Megabytes
> > > DeTomaso mailing list
> > > [7]DeTomaso at server.detomasolist.com
> > > [8]http://server.detomasolist.com/mailman/listinfo/detomaso
> > > To manage your subscription (change email address, unsubscribe, etc.)
> > > 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
> > >
> > > 1. mailto:henrik.svensson at intelligo.se
> > > 2. mailto:charlesmccall at gmail.com
> > > 3. mailto:detomaso-bounces at server.detomasolist.com
> > > 4. mailto:detomaso at server.detomasolist.com
> > > 5. mailto:DeTomaso at server.detomasolist.com
> > > 6. http://server.detomasolist.com/mailman/listinfo/detomaso
> > > 7. mailto:DeTomaso at server.detomasolist.com
> > > 8. http://server.detomasolist.com/mailman/listinfo/detomaso
> > > _______________________________________________
> > >
> > >
> > > Detomaso Email List is not managed by POCA Posted emails must not
> > > exceed 1.5 Megabytes DeTomaso mailing list
> > > DeTomaso at server.detomasolist.com
> > > http://server.detomasolist.com/mailman/listinfo/detomaso
> > >
> > > To manage your subscription (change email address, unsubscribe,
> > > etc.)
> > 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.
> > _______________________________________________
> >
> >
> > Detomaso Email List is not managed by POCA Posted emails must not
> > exceed 1.5 Megabytes DeTomaso mailing list
> > DeTomaso at server.detomasolist.com
> > http://server.detomasolist.com/mailman/listinfo/detomaso
> >
> > To manage your subscription (change email address, unsubscribe, etc.)
> > 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.
> >
>
-------------- next part --------------
I selected Chuck Nuytten (he's still around and easy found with Google)
because of an experience reported by Chuck Engles. He can correct me if
my memory has failed.A
He sent his carb to this outfit, who configured it according to their
procedure. Chuck then mounted it on his engine and spend a couple of
days dyno testing, adjusting the carb to see how close it was to
optimal. I think that after 2 days he managed to squeeze a whole 1hp
and 2ft/lb more out the engine by fine tuning. That means that
Nuytten's configuration was close enough for me!
On Thu, May 4, 2017 at 11:06 AM, Henrik Svensson
<[1]henrik.svensson at intelligo.se> wrote:
Hi all,
Thanks for all feedback, I will do as Mike, dt and Charles say. I
will start by asking for a questionnaire and see how much I remember
about my engine :)
/Henrik
-----Original Message-----
From: DeTomaso [mailto:[2]detomaso-bounces at server.detomasolist.com]
On Behalf Of Charles McCall
Sent: den 4 maj 2017 08:57
To: Mike Drew <[3]MikeLDrew at aol.com>
Cc: Detomaso <[4]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Speed Demon 750 anyone?
If you do decide to buy a new carb, I'd second the suggestion to not
buy an "off the shelf" carb. I bought a fancy carb from one of the
Pantera vendors that was "tuned for a Pantera". But what is a
Pantera? A bone-stock, 1974 engine with all the smog gear installed?
A 1971 high compression engine? A
393 stroker? None of these engines will have the same needs, and a
carb tuned for one will work poorly on another.
The carb I bought worked horribly on my engine, which is far from
stock.
After a lot of fiddling, I sent it to Chuck Nuytten, who does the
same thing Mike comments. There's a 5 page questionnaire about your
motor, and he tunes it and sets it up for your specific use. (It's
also who milled the choke off for better flow). I took it out of the
box, put it on, and the engine ran fantastic ever since.
Especially if your motor is a little different, I'd look at the
option of a carb configured for your specific engine instead of
"one-size-fits-all"
On Wed, May 3, 2017 at 11:36 PM, Mike Drew via DeTomaso <
[5]detomaso at server.detomasolist.com> wrote:
> Dan Jones recommends Competition Carbs out of Nevada. That's what
I
> have on my motor and its been great. No 'off the shelf'
buying--you
> send him a full spec sheet on your engine and exhaust and be
builds a carb to suit it.
>
> Not overly expensive either.
>
> Mike
>
> Sent from my iPhone
>
> On May 3, 2017, at 14:34, Corey Price <[6]coreyjprice at gmail.com>
wrote:
>
> >A A Henrik,
> >A A The Demon carbs aren't known for their reliability.AA I
would recommend
> >A A an Holley Street Demon 625 or 750 or a Holley-type
carburetor that a
> >A A tuner has worked on (such as a Quickfuel); many of the
Pantera vendors
> >A A can help with a "tuner" carburetor.
> >A A Corey
> >
> >A A On Wed, May 3, 2017 at 3:10 PM, Henrik Svensson
> >A A <[1][7]henrik.svensson at intelligo.se> wrote:
> >
> >A A A Hi Charles,
> >A A A No, I guess that is more of an excuse to by something new
to the
> >A A A car. I'm a bit curious of what a new carb can do to my
engine. But
> >A A A if someone tells me an Edelbrock 1411 is a good carb for
my engine
> >A A A spec I guess I can live without the choke even if it
makes life in
> >A A A Sweden a bit easier :)
> >A A A /Henrik
> >A A A Sent from my iPhone
> >
> >A A 3 maj 2017 kl. 20:51 skrev Charles McCall
> ><[2][8]charlesmccall at gmail.com
> >:
> >A A The only reason you want to buy a new carb is because the
choke stopped
> >A A working?
> >A A I had mine milled off 15 years ago and haven't missed it
since. I don't
> >A A have
> >A A any cold starting problems, and the engine warms up pretty
quickly.
> >A A Granted,
> >A A you live in Sweden and I live in Spain, where the
temperature is a
> >A A little
> >A A different, but even in cool weather I don't really miss a
choke. Are
> >A A you
> >A A sure it is necessary?
> >A A -----Original Message-----
> >A A From: DeTomaso [mailto:[3][9]detomaso-bounces@
server.detomasolist.com] On
> >A A Behalf
> >A A Of Henrik Svensson
> >A A Sent: miA(c)rcoles, 3 de mayo de 2017 16:49
> >A A To: [4][10]detomaso at server.detomasolist.com
> >A A Subject: [DeTomaso] Speed Demon 750 anyone?
> >A A Hi all,
> >A A I have a Edelbrock 750 (1411) on my car. It was placed there
2005 by
> >A A the
> >A A previous owner. Since then I have done a rebuild and it's
now a 393
> >A A with AFD
> >A A 4v 64cc heads and a cam with intake duration of 239 and
exhaust of 248
> >A A (0.050).
> >A A The Edelbrock have been working fine, not that I have much
to compare
> >A A with,
> >A A but now the choke stopped working and I think I'll buy a new
one
> >A A instead of
> >A A fixing the old one. I have been looking at the
> >A A SPEED DEMON 1402020VE 750 CFM, anyone with experience of
that carb?
> >A A Or any other opinions about what carb to put on an engine
with these
> >A A specs?
> >A A Thanks!
> >A A Henrik
> >A A #1477
> >A A _______________________________________________
> >A A Detomaso Email List is not managed by POCA
> >A A Posted emails must not exceed 1.5 Megabytes
> >A A DeTomaso mailing list
> >A A [5][11]DeTomaso at server.detomasolist.com
> >A A [6][12]http://server.detomasolist.
com/mailman/listinfo/detomaso
> >A A To manage your subscription (change email address,
unsubscribe, etc.)
> >A A use the links above.
> >A A Members who post to this list grant license to the list to
forward any
> >A A message posted here to all past, current, or future members
of the
> >A A list. They also grant the list owner permission to maintain
an archive
> >A A or approve the archiving of list messages.
> >A A _______________________________________________
> >A A Detomaso Email List is not managed by POCA
> >A A Posted emails must not exceed 1.5 Megabytes
> >A A DeTomaso mailing list
> >A A [7][13]DeTomaso at server.detomasolist.com
> >A A [8][14]http://server.detomasolist.
com/mailman/listinfo/detomaso
> >A A To manage your subscription (change email address,
unsubscribe, etc.)
> >A A use the links above.
> >A A Members who post to this list grant license to the list to
forward any
> >A A message posted here to all past, current, or future members
of the
> >A A list. They also grant the list owner permission to maintain
an archive
> >A A or approve the archiving of list messages.
> >
> > References
> >
> >A A 1. mailto:[15]henrik.svensson at intelligo.se
> >A A 2. mailto:[16]charlesmccall at gmail.com
> >A A 3. mailto:[17]detomaso-bounces at server.detomasolist.com
> >A A 4. mailto:[18]detomaso at server.detomasolist.com
> >A A 5. mailto:[19]DeTomaso at server.detomasolist.com
> >A A 6. [20]http://server.detomasolist.
com/mailman/listinfo/detomaso
> >A A 7. mailto:[21]DeTomaso at server.detomasolist.com
> >A A 8. [22]http://server.detomasolist.
com/mailman/listinfo/detomaso
> > _______________________________________________
> >
> >
> > Detomaso Email List is not managed by POCA Posted emails must
not
> > exceed 1.5 Megabytes DeTomaso mailing list
> > [23]DeTomaso at server.detomasolist.com
> > [24]http://server.detomasolist.com/mailman/listinfo/detomaso
> >
> > To manage your subscription (change email address, unsubscribe,
> > etc.)
> 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.
> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA Posted emails must not
> exceed 1.5 Megabytes DeTomaso mailing list
> [25]DeTomaso at server.detomasolist.com
> [26]http://server.detomasolist.com/mailman/listinfo/detomaso
>
> To manage your subscription (change email address, unsubscribe,
etc.)
> 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
1. mailto:henrik.svensson at intelligo.se
2. mailto:detomaso-bounces at server.detomasolist.com
3. mailto:MikeLDrew at aol.com
4. mailto:detomaso at server.detomasolist.com
5. mailto:detomaso at server.detomasolist.com
6. mailto:coreyjprice at gmail.com
7. mailto:henrik.svensson at intelligo.se
8. mailto:charlesmccall at gmail.com
9. mailto:detomaso-bounces at server.detomasolist.com
10. mailto:detomaso at server.detomasolist.com
11. mailto:DeTomaso at server.detomasolist.com
12. http://server.detomasolist.com/mailman/listinfo/detomaso
13. mailto:DeTomaso at server.detomasolist.com
14. http://server.detomasolist.com/mailman/listinfo/detomaso
15. mailto:henrik.svensson at intelligo.se
16. mailto:charlesmccall at gmail.com
17. mailto:detomaso-bounces at server.detomasolist.com
18. mailto:detomaso at server.detomasolist.com
19. mailto:DeTomaso at server.detomasolist.com
20. http://server.detomasolist.com/mailman/listinfo/detomaso
21. mailto:DeTomaso at server.detomasolist.com
22. http://server.detomasolist.com/mailman/listinfo/detomaso
23. mailto:DeTomaso at server.detomasolist.com
24. http://server.detomasolist.com/mailman/listinfo/detomaso
25. mailto:DeTomaso at server.detomasolist.com
26. http://server.detomasolist.com/mailman/listinfo/detomaso
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