Down Draft Intake

Fillinjc

Fillinjc

Member
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
 
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.
 

Attachments

  • trog motor1.jpg
    trog motor1.jpg
    65 KB · Views: 384
  • trog motor2.jpg
    trog motor2.jpg
    54.6 KB · Views: 302
Last edited:
I have a fairly new Snyder's exhaust manifold. I figured I would need to have them machined flat when mounted together.
 
zzlegend said:
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.
Click to expand...

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 said:
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
Click to expand...

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. :cool:
 
Tod said:
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
Click to expand...

Very nice looking header Tod !
 
zzlegend said:
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. :cool:
Click to expand...


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
 
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
 
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!
 
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
 
I put the Anson on, the Scalded Dog looks easier to hook up.
 

Attachments

  • P1130180.jpg
    P1130180.jpg
    63.9 KB · Views: 183
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.
 
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
 

Attachments

  • IMG_1457.jpg
    IMG_1457.jpg
    70.5 KB · Views: 235
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
 
You must log in or register to reply here.
Back
Top