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Old 04-06-2017, 05:34 PM   #1
Fillinjc
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Default Down Draft Intake

Hi,

I know there are a bunch of guys running Strombergs. I just ordered a model 81 for my 1930 coupe. Does anyone have opinions on the Scalded Dog intake manifold?

Thanks,
Jerry
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Old 04-06-2017, 06:30 PM   #2
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Default Re: Down Draft Intake

I just put one on 2 weeks ago with a Holley 94. Just re-jetted it an hour ago. See what happens now. I also had a warped manifold so I installed on of snyders cast iron header. Much better but you do have to alter or change the exhaust. I will try and get a picture.
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Old 04-06-2017, 06:38 PM   #3
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Default Re: Down Draft Intake

I have a fairly new Snyder's exhaust manifold. I figured I would need to have them machined flat when mounted together.
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Old 04-06-2017, 06:40 PM   #4
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Default Re: Down Draft Intake

Pictures posted. Good luck with yours. I like the manifold.
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Old 04-06-2017, 06:52 PM   #5
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Default Re: Down Draft Intake

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Originally Posted by zzlegend View Post
I just put one on 2 weeks ago with a Holley 94. Just re-jetted it an hour ago. See what happens now. I also had a warped manifold so I installed on of snyders cast iron header. Much better but you do have to alter or change the exhaust. I will try and get a picture.
That is the new replacement header I made for Snyder's. Did you paint it? How did it fit up? I have a few of them out for testing prior to selling them to Snyder's. There were no complaints. It actually appeared in the latest issue of Model A Times. We have about 30 more castings ordered.

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Old 04-06-2017, 06:56 PM   #6
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Default Re: Down Draft Intake

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Looks awesome! Thanks for the pictures.
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Old 04-06-2017, 07:14 PM   #7
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Default Re: Down Draft Intake

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That is the new replacement header I made for Snyder's. Did you paint it? How did it fit up? I have a few of them out for testing prior to selling them to Snyder's. There were no complaints. It actually appeared in the latest issue of Model A Times. We have about 30 more castings ordered.

Tod
Tod, yes it fits great. I did paint it with some VHT high temp silver. It bolted up with that intake just perfect. No complaints here. You did good.
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Old 04-06-2017, 07:17 PM   #8
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Default Re: Down Draft Intake

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That is the new replacement header I made for Snyder's. Did you paint it? How did it fit up? I have a few of them out for testing prior to selling them to Snyder's. There were no complaints. It actually appeared in the latest issue of Model A Times. We have about 30 more castings ordered.

Tod
Very nice looking header Tod !
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Old 04-06-2017, 07:24 PM   #9
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Default Re: Down Draft Intake

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Tod, yes it fits great. I did paint it with some VHT high temp silver. It bolted up with that intake just perfect. No complaints here. You did good.

Good to hear. The shape and webbing do better at holding stability during machining. The old version was flexible and unstable. I hope it serves you well.

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Old 04-06-2017, 07:26 PM   #10
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Very nice looking header Tod !
Thanks. I hope to see one along with my new downdraft intake. Both are available only through Snyder's for now.

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Old 04-06-2017, 07:30 PM   #11
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Good to hear. The shape and webbing do better at holding stability during machining. The old version was flexible and unstable. I hope it serves you well.

Tod
Thanks Tod. Mark.
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Old 04-06-2017, 07:32 PM   #12
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Looks awesome! Thanks for the pictures.
Your welcome. Good luck on your project. Mark.
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Old 04-07-2017, 11:20 AM   #13
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Default Re: Down Draft Intake

IMO.........
The manifold sold by Snyders under part # A 9425-SGL is a better choice for a single carb setup. I believe that this manifold copies the original Winfield design, but adapted for Stromberg/Holley carb base.
The manifolds that make sharp 90* turns into the runners allows for a fuel air separation to occur due to low port velocity.
Ken
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Old 04-07-2017, 11:29 AM   #14
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Default Re: Down Draft Intake

I agree with rally 1
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Old 04-07-2017, 01:43 PM   #15
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Default Re: Down Draft Intake

rally 1 or Jim Brierley,

I am building a car with a touring engine built for extended road trips. I want strong performance between 1800 and 2800 rpm. Seldom will I hold the rpm's above 3000 for any extended period of time.

I ordered the "sharp bend" aluminum manifold (A-9425-SD which is the Scalded Dog" from Snyder's and have not yet installed it. I ordered it because of the heat transfer plate thinking it would be necessary. I have seen different methods of fitting a heating shroud around some downdraft intakes to help warm up the intake manifold. I do not want to have to mess with this issue.

I could return the manifold and order the one you both agree is better.

So my question: Knowing how I plan to use it and my dislike of building an intake manifold heater, is your opinion still the same? Do you think I should exchange it?

Thanks Guys!

Good Day!
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Old 04-07-2017, 02:12 PM   #16
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Default Re: Down Draft Intake

Yes, my engine builder had the same concerns regarding the 90 degree bends but he also said that the intake manifold should be heated so ultimately I chose the Scalded Dog. Ordered earlier today. Thanks for the input.

Jerry
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Old 04-07-2017, 02:28 PM   #17
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Default Re: Down Draft Intake

I put the Anson on, the Scalded Dog looks easier to hook up.
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Old 04-07-2017, 02:34 PM   #18
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Default Re: Down Draft Intake

I like the Scalded Dog down draft intake because they have the "Hot Plate" to heat the intake ... prevents "carb icing" and poor running while engine warms up.

In most cases the exhaust headers do not have provisions for using heated intakes.

Year round driving here with some cold weather driving really brings out this problem.
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Old 04-07-2017, 02:44 PM   #19
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Default Re: Down Draft Intake

I have had the ScaldedDog for several years now with a 97. The first thin we noticed is it ran smoother at low speeds than the Zenith plus good power up hills.No problems.

I use a carte electric pump with pressure rgulator.

John
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Old 04-08-2017, 05:25 AM   #20
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Default Re: Down Draft Intake

I've run both manifolds.
Throttle response with the Ansen/Scalded Dog wasn't acceptable to me. The Snyders design just ran better.
While manifold heat definitely helps maintain fuel vaporization, not having it never was a problem for me. Being in Ohio, late fall generally just required a little longer warmup, plus a 180 thermostat.
To qualify, my engine(s) are 8:1, Stipe touring cam, tube header, electronic dizzy, Stromberg 97. Currently run twin 97's.
Spent a LOT of time working out the ignition timing. I believe compression and ignition are the key components to making these engines run good.
Ken
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Old 04-08-2017, 09:21 AM   #21
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Default Re: Down Draft Intake

Quote:
Originally Posted by rally 1 View Post
I've run both manifolds.
Throttle response with the Ansen/Scalded Dog wasn't acceptable to me. The Snyders design just ran better.
While manifold heat definitely helps maintain fuel vaporization, not having it never was a problem for me. Being in Ohio, late fall generally just required a little longer warmup, plus a 180 thermostat.
To qualify, my engine(s) are 8:1, Stipe touring cam, tube header, electronic dizzy, Stromberg 97. Currently run twin 97's.
Spent a LOT of time working out the ignition timing. I believe compression and ignition are the key components to making these engines run good.
Ken
Thank you Ken.
Good Day!
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Old 04-08-2017, 11:30 PM   #22
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Default Re: Down Draft Intake

Funny this should come up now. Just yesterday, I was looking at someone else's car and he had put a heating box on the manifold that came with his Weber carb. He says he went down a jet size and the economy is just great - runs well too.
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Old 04-09-2017, 12:19 AM   #23
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Default Re: Down Draft Intake

Here's my Stromberg 97 with the Snyder intake manifold. Don't think the lack of direct contact with the exhaust manifold to create heat has been a problem at all -- even here in Alaska where it doesn't get all that hot, even in the summertime.
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Old 04-09-2017, 06:58 AM   #24
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Here's my Stromberg 97 with the Snyder intake manifold. Don't think the lack of direct contact with the exhaust manifold to create heat has been a problem at all -- even here in Alaska where it doesn't get all that hot, even in the summertime.
The newest version of that intake looks even better.

Tod
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Old 04-09-2017, 04:20 PM   #25
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The newest version of that intake looks even better.

Tod
Tod,
Do you have a photo of the newest version you could post?

Thanks!
Good Day!
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Old 04-09-2017, 04:39 PM   #26
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Why Stromberg 97? Is it better than the Weber that Snyder's sell? Where can the Stromberg be bought from a reliable source at a reasonable price?
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Old 04-09-2017, 04:56 PM   #27
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Tod,
Do you have a photo of the newest version you could post?

Thanks!
Good Day!
Here is the first one. The next ones are better. I have 1 or 2 that had very minor issues so I did not let Snyder's have them. They need a home. PM me if you are interested in a reduced price on one.

Tod
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Old 04-11-2017, 11:14 AM   #28
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Default Re: Down Draft Intake

Been using the Scalded Dog for a few years now with a Stromberg 81. Basically very streetable performance with no issues.

We also have another car with the Ansen intake as well. That's on a mildly modified B engine also with an 91 carb. As far as jets we went with adjustable jets and once they got dialed in we basically have left them alone.
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Old 04-11-2017, 03:27 PM   #29
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Default Re: Down Draft Intake

I have a Scalded Dog with a Stromberg 81 on an engine in an engine stand. Not installed in coupe yet. Cant get the 81 to run. Runs about 5 seconds and quits. 5 seconds and quits. starts immediately runs another 5 seconds and quits. Any suggestions? Engine runs great with Zenits carburetor.
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Old 04-11-2017, 04:15 PM   #30
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I have a Scalded Dog with a Stromberg 81 on an engine in an engine stand. Not installed in coupe yet. Cant get the 81 to run. Runs about 5 seconds and quits. 5 seconds and quits. starts immediately runs another 5 seconds and quits. Any suggestions? Engine runs great with Zenits carburetor.
You need to talk to the ultimate Stromberg guru- Uncle Max.
He is a Fordbarn member and posts on the EV8 Forum.
Here is his profile: LINK

Uncle max also has a website.
Strombergs are his full time business. LINK

I had him completely restore a matched pair of 81's for me a few years ago and they were absolute perfection.
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Old 04-11-2017, 05:11 PM   #31
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thanks Mikek. I am following up on the link and a phone call in the morning.
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Old 04-11-2017, 05:34 PM   #32
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Here is the first one. The next ones are better. I have 1 or 2 that had very minor issues so I did not let Snyder's have them. They need a home. PM me if you are interested in a reduced price on one.

Tod
Tod,

Are you going to make an intake for two carbs?

David Serrano
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Old 04-11-2017, 06:06 PM   #33
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Here's my Stromberg 97 with the Snyder intake manifold. Don't think the lack of direct contact with the exhaust manifold to create heat has been a problem at all -- even here in Alaska where it doesn't get all that hot, even in the summertime.
What is the extra block above the water outlet? thermostat?Heater outlet?
Is that an oil pressure cut off for the fuel?

Nice Ride!
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Old 04-11-2017, 06:15 PM   #34
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What is the extra block above the water outlet? thermostat?Heater outlet? ...
It's a thermostat housing with outlets for a heater and a temp gauge. It's made by Vintage Precision, see picture below.

Quote:
... Is that an oil pressure cut off for the fuel? ...
I think what you are referring to is a fuel pressure gauge and regulator.

.
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Old 04-11-2017, 06:56 PM   #35
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Tod,

Are you going to make an intake for two carbs?

David Serrano
Snyder already sells one. As it turns out I designed and CNC cut the tooling for a shop that made it for Dan Price. Now Snyder owns the tooling and I machine them. The only real problem is the shrink factor of the tooling is off (I tried to advise otherwise) and the castings are about .06 off center to center. So far, that hasn't hurt anyone's performance. I would have made it differently but it is what it is now. If I thought I could sell a few hundred I would make my own. But, that is not likely.

Tod

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Old 04-11-2017, 07:44 PM   #36
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Snyder already sells one. As it turns out I designed and CNC cut the tooling for a shop that made it for Dan Price. No Snyder owns the tooling and I machine them. The only real problem is the shrink factor of the tooling is off (I tried to advise otherwise) and the castings are about .06 off center to center. So far, that hasn't hurt anyone's performance. I would have made it differently but it is what it is now. If I thought I could sell a few hundred I would make my own. But, that is not likely.

Tod
Thanks Tod.

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