[DeTomaso] Brake vacuum source HELP
Joseph F. Byrd, Jr.
byrdjf at embarqmail.com
Thu Jul 2 17:18:09 EDT 2015
How are you plumbed?
Here would be my first arrangement. The upper vacuum source being the
manifold and the lower being the electric vacuum pump. The values shown are
for illustration and do not represent actual
I would be concerned about the orientation of the check valves, possibly
have them up/down with gravity assisting closing
Joe in NC
-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of
grayjim at cox.net
Sent: Thursday, July 02, 2015 15:07 PM
To: spkorb at gmail.com
Cc: detomaso at poca.com
Subject: Re: [DeTomaso] Brake vacuum source HELP
Collective advice needed. I installed an electric pump with a reservoir can
but also left the engine vacuum t'd in for safety. Yes I have 2 check valves
but I can't get the setup to work any better than my stock arrangement.
Anyone have a diagram as to how all that should be plumbed for efficiency. I
feel I've got something wrong.
Thanks in advance
Jim Gray
On Thu, Jul 2, 2015 at 1:31 PM, Sean Korb wrote:
> The EV crowd has this problem as well. Here is a solution that
> suggests it is quieter:
> <http://www.evsource.com/tls_braking_system.php>
http://www.evsource.com/tls_braking_system.php
>
> Maybe you can pull a pump off a Nissan Leaf, Fiat EV, Chevy Volt or
> another vehicle of that ilk. They're as libel to show up in junk
> yards as any limited production vehicle.
>
> sean
>
> On Thu, Jul 2, 2015 at 12:51 PM, Mike Drew via DeTomaso
> < <mailto:detomaso at poca.com> detomaso at poca.com>
> wrote:
>
>> In a message dated 7/2/15 5 23 23, <mailto:npdrs at maui.net>
npdrs at maui.net writes:
>>
>> Hello, I am just having new engine installed into my '71 and
>> will no
>> longer
>> have a reliable source of vacuum available for the brake
>> booster.
>> Could someone please recommend a proven electric vacuum pump
>> setup
>> and where
>> to buy it?
>> It would be great if possible to find a source in Germany (or
>> Europe) as the
>> car is in Germany.
>>
>>>>> Robert--I assume the problem is that your new engine is fitted
>>>>> with
>> a 'race' intake manifold that has no provisions for vacuum
>> take-off?
>> That's the problem with such things.
>> One solution is to have a bung welded to one of the intake
>> runners.
>> When I faced the same problem with my GT350, I took a different
>> path.
>> I fitted a Boss 302 carb spacer, which has provisions for brake
>> vacuum,
>> yet is very thin to provide hood clearance.
>> I got mine here:
>> <http://www2.cougarpartscatalog.com/bossspace.html>
http://www2.cougarpartscatalog.com/bossspace.html
>> You could always just get a typical one-inch spacer, but that adds
>> height that you don't want. This spacer is very, very thin; the
>> round
>> pipe goes oval as it enters the side of the spacer, reducing
>> height,
>> yet the total area remains unchanged.
>> <http://image1.cougparts.com/dc/16203/1430333053_l.jpg>
http://image1.cougparts.com/dc/16203/1430333053_l.jpg
>> <http://image1.cougparts.com/dc/16203/1430333006_p.jpg>
http://image1.cougparts.com/dc/16203/1430333006_p.jpg
>> <http://image1.cougparts.com/dc/16203/1430333005_g.jpg>
http://image1.cougparts.com/dc/16203/1430333005_g.jpg
>> (Those are photos of a used original, not the new repro, which is
>> built
>> to the same standard but obviously looks new).
>> Note that it is somewhat fragile; if you manhandle the hose onto
>> and
>> off of the pipe, you'll break it. Install the hose onto the pipe
>> holding the pipe in your hand, then lay the spacer in position,
>> and
>> manhandle the other end of the hose onto the pipe under the car.
>> Easy peasy!
>> In answer to your actual question, I have seen a number of Pantera
>> owners attempt to incorporate electric vacuum pumps, and every one
>> of
>> them was just miserable. Those are another 'race only' part, and
>> are
>> deafeningly loud and create a ton of vibration. I find them
>> completely
>> intolorable for a street car, plus they take up a lot of precious
>> front
>> trunk space. And they are more expensive than the simple spacer
>> shown
>> above.
>> Mike
>>
>> _______________________________________________
>>
>> Detomaso Forum Managed by POCA
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>> use the links above.
>>
>>
>
>
> --
> Sean Korb <mailto:spkorb at spkorb.org> spkorb at spkorb.org
<http://www.spkorb.org> http://www.spkorb.org
> '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
> #1382
> "The more you drive, the less intelligent you get" --Miller
> "Computers are useless. They can only give you answers." -P. Picasso
>
>
> ------------------------------
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
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> use the links above.
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-------------- next part --------------
How are you plumbed?
Here would be my first arrangement. The upper vacuum source being the
manifold and the lower being the electric vacuum pump. The values
shown are for illustration and do not represent actual
[cid:image002.jpg at 01D0B4EB.11338E10]
I would be concerned about the orientation of the check valves,
possibly have them up/down with gravity assisting closing
Joe in NC
-----Original Message-----
From: DeTomaso [[1]mailto:detomaso-bounces at poca.com] On Behalf Of
[2]grayjim at cox.net
Sent: Thursday, July 02, 2015 15:07 PM
To: [3]spkorb at gmail.com
Cc: [4]detomaso at poca.com
Subject: Re: [DeTomaso] Brake vacuum source HELP
Collective advice needed. I installed an electric pump with a reservoir
can but also left the engine vacuum t'd in for safety. Yes I have 2
check valves but I can't get the setup to work any better than my stock
arrangement. Anyone have a diagram as to how all that should be plumbed
for efficiency. I feel I've got something wrong.
Thanks in advance
Jim Gray
On Thu, Jul 2, 2015 at 1:31 PM, Sean Korb wrote:
> The EV crowd has this problem as well. Here is a solution that
> suggests it is quieter:
> [5]http://www.evsource.com/tls_braking_system.php
>
> Maybe you can pull a pump off a Nissan Leaf, Fiat EV, Chevy Volt or
> another vehicle of that ilk. They're as libel to show up in junk
> yards as any limited production vehicle.
>
> sean
>
> On Thu, Jul 2, 2015 at 12:51 PM, Mike Drew via DeTomaso
> <[6]detomaso at poca.com>
> wrote:
>
>> In a message dated 7/2/15 5 23 23, [7]npdrs at maui.net writes:
>>
>> Hello, I am just having new engine installed into my '71 and
>> will no
>> longer
>> have a reliable source of vacuum available for the brake
>> booster.
>> Could someone please recommend a proven electric vacuum pump
>> setup
>> and where
>> to buy it?
>> It would be great if possible to find a source in Germany (or
>> Europe) as the
>> car is in Germany.
>>
>>>>> Robert--I assume the problem is that your new engine is fitted
>>>>> with
>> a 'race' intake manifold that has no provisions for vacuum
>> take-off?
>> That's the problem with such things.
>> One solution is to have a bung welded to one of the intake
>> runners.
>> When I faced the same problem with my GT350, I took a different
>> path.
>> I fitted a Boss 302 carb spacer, which has provisions for brake
>> vacuum,
>> yet is very thin to provide hood clearance.
>> I got mine here:
>> [8]http://www2.cougarpartscatalog.com/bossspace.html
>> You could always just get a typical one-inch spacer, but that
adds
>> height that you don't want. This spacer is very, very thin; the
>> round
>> pipe goes oval as it enters the side of the spacer, reducing
>> height,
>> yet the total area remains unchanged.
>> [9]http://image1.cougparts.com/dc/16203/1430333053_l.jpg
>> [10]http://image1.cougparts.com/dc/16203/1430333006_p.jpg
>> [11]http://image1.cougparts.com/dc/16203/1430333005_g.jpg
>> (Those are photos of a used original, not the new repro, which is
>> built
>> to the same standard but obviously looks new).
>> Note that it is somewhat fragile; if you manhandle the hose onto
>> and
>> off of the pipe, you'll break it. Install the hose onto the pipe
>> holding the pipe in your hand, then lay the spacer in position,
>> and
>> manhandle the other end of the hose onto the pipe under the car.
>> Easy peasy!
>> In answer to your actual question, I have seen a number of
Pantera
>> owners attempt to incorporate electric vacuum pumps, and every
one
>> of
>> them was just miserable. Those are another 'race only' part, and
>> are
>> deafeningly loud and create a ton of vibration. I find them
>> completely
>> intolorable for a street car, plus they take up a lot of precious
>> front
>> trunk space. And they are more expensive than the simple spacer
>> shown
>> above.
>> Mike
>>
>> _______________________________________________
>>
>> Detomaso Forum Managed by POCA
>> Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list
>> [12]DeTomaso at poca.com
[13]http://poca.com/mailman/listinfo/detomaso_poca.com
>>
>> To manage your subscription (change email address, unsubscribe,
etc.)
>> use the links above.
>>
>>
>
>
> --
> Sean Korb [14]spkorb at spkorb.org [15]http://www.spkorb.org
> '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
> #1382
> "The more you drive, the less intelligent you get" --Miller
> "Computers are useless. They can only give you answers." -P. Picasso
>
>
> ------------------------------
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [16]DeTomaso at poca.com
> [17]http://poca.com/mailman/listinfo/detomaso_poca.com
>
> To manage your subscription (change email address, unsubscribe, etc.)
> use the links above.
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To manage your subscription (change email address, unsubscribe, etc.)
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References
1. mailto:detomaso-bounces at poca.com
2. mailto:grayjim at cox.net
3. mailto:spkorb at gmail.com
4. mailto:detomaso at poca.com
5. http://www.evsource.com/tls_braking_system.php
6. mailto:detomaso at poca.com
7. mailto:npdrs at maui.net
8. http://www2.cougarpartscatalog.com/bossspace.html
9. http://image1.cougparts.com/dc/16203/1430333053_l.jpg
10. http://image1.cougparts.com/dc/16203/1430333006_p.jpg
11. http://image1.cougparts.com/dc/16203/1430333005_g.jpg
12. mailto:DeTomaso at poca.com
13. http://poca.com/mailman/listinfo/detomaso_poca.com
14. mailto:spkorb at spkorb.org
15. http://www.spkorb.org/
16. mailto:DeTomaso at poca.com
17. http://poca.com/mailman/listinfo/detomaso_poca.com
18. mailto:DeTomaso at poca.com
19. http://poca.com/mailman/listinfo/detomaso_poca.com
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