What to expect from a Stromberg OF

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
Don ellis
Posts: 380
Joined: Sun Jan 06, 2019 8:51 pm
First Name: Don
Last Name: Ellis
* REQUIRED* Type and Year of Model Ts owned: 1911,1917,23,27
Location: Julian nc

What to expect from a Stromberg OF

Post by Don ellis » Sat Jan 13, 2024 8:58 pm

I now have a Stromberg OF on my 23 touring. It seems to run good and I can tell a difference in low end power and performance. But I have never been in or near another T with one so I don’t know what it’s supposed to be like. Top end is not much different than the straight thru NH I had on it. What should I expect? I have a z head and early aluminum intake.
Thanks
Last edited by Don ellis on Mon Jan 15, 2024 1:26 pm, edited 1 time in total.


Burger in Spokane
Posts: 2264
Joined: Sat Mar 09, 2019 2:05 am
First Name: Brent
Last Name: Burger
* REQUIRED* Type and Year of Model Ts owned: 1926 TT closed cab flatbed
Location: Spokane, Wa.
Board Member Since: 2014

Re: What to expect from a Stromberg OF

Post by Burger in Spokane » Sat Jan 13, 2024 9:56 pm

The only reason I pulled my OF from the truck was I could not get it
to stop leaking when not in use. I felt it ran very well and helped scoot
the truck along better than anything else I ever ran on it. I stuck a bored-
-out NH on it, and that runs well and reliably too, but I think the OF
performed better. I haul a lot of heavy loads.

26lumber 2016 aug 01.jpg
More people are doing it today than ever before !


RVA23T
Posts: 834
Joined: Sat Apr 02, 2022 8:27 am
First Name: Richard
Last Name: C
* REQUIRED* Type and Year of Model Ts owned: 1923 Touring
Location: Lake Country, Virginia

Re: What to expect from a Stromberg OF

Post by RVA23T » Sat Jan 13, 2024 10:13 pm

Where I use to live I had a hill that in a 45 mpg zone my NH would top at 28 to 30 and the OF on my 23 touring gained 5 mph so it was 33 to 35 mph.
I also out ran another restored teen something touring one time with only a driver while there were 4 adults in my touring.
The OF holds out or goes on longer vs my NH. Does not help off the line but never feels it is starving for fuel.
I feel it wants another gear more than more fuel but I'm also not a slow driver.

Also nice not the have to spin the knows and turn the wheels to get just the right carb adjustment while driving. It is nice to "set it and forget it" just as if Ron Popiel made a manifold cooker for the T.
Everything works in theory.
Reality is how you determine if something works or not.


Allan
Posts: 6609
Joined: Sun Jan 06, 2019 7:21 pm
First Name: Allan
Last Name: Bennett
* REQUIRED* Type and Year of Model Ts owned: 1912 van, 1917 shooting brake, 1929 roadster buckboard, 1924 tourer, 1925 barn find buckboard, 1925 D &F wide body roadster, 1927LHD Tudor sedan.
Location: Gawler, Australia

Re: What to expect from a Stromberg OF

Post by Allan » Sun Jan 14, 2024 9:10 pm

Brent, my OF weeps from the bottom of the vertical throttle shaft. I found an interesting modification on an original OF I bought at a swap meet that fixed that. Over the bottom of the shaft they had soldered a cap to the carb body. Simple, but I wonder if there were any implications for the fuel being retained/accumulated.

Allan from down under.

User avatar

kelly mt
Posts: 261
Joined: Sun Jan 06, 2019 2:55 pm
First Name: Pat
Last Name: Kelly
* REQUIRED* Type and Year of Model Ts owned: 23 Speedster, 25 TT, 26 Roadster, 27 Tudor
Location: Noxon MT

Re: What to expect from a Stromberg OF

Post by kelly mt » Mon Jan 15, 2024 12:25 am

I'm running an OF on two of my T's. I replaced a good NH and a Simmons. They pull hills real good.


AndyClary
Posts: 835
Joined: Sun Jan 06, 2019 11:15 am
First Name: Andrew
Last Name: Clary
* REQUIRED* Type and Year of Model Ts owned: 1914 Runabout 1926 Coupe. Mercury Speedster #1249
Location: Usa

Re: What to expect from a Stromberg OF

Post by AndyClary » Mon Jan 15, 2024 9:55 am

Are there any problems starting an OF in a non starter car. My NH starts right up and I’d hate to lose that.


Andy


RGould1910
Posts: 1128
Joined: Tue Jan 22, 2019 8:16 am
First Name: Richard
Last Name: Gould
* REQUIRED* Type and Year of Model Ts owned: 1910 touring, 1912 roadster , 1927 roadster
Location: Folsom, CA

Re: What to expect from a Stromberg OF

Post by RGould1910 » Mon Jan 15, 2024 12:32 pm

I don't know Andy, I'd leave well enuf alone. I installed an OF on my 27 with electric start and I honestly don't see much difference in performance between it and a straight thru NH it replaced. It does idle better however.

Can't address your question re an OF on a crank start car
but you'd need a way to choke it. If memory serves you can attach the standard choke rod that passes thru the radiator but Im not sure about that.Tim Morsher made a good relica of the steering column choke. If you decide to try the OF I may be able to locate one for you.


SurfCityGene
Posts: 681
Joined: Wed Jan 23, 2019 3:00 pm
First Name: Gene
Last Name: Carrothers
* REQUIRED* Type and Year of Model Ts owned: 1912 Torpedo Roadster
Location: Huntington Beach, Ca
Board Member Since: 1999

Re: What to expect from a Stromberg OF

Post by SurfCityGene » Mon Jan 15, 2024 1:15 pm

Andy, Simply connect the choke wire to the OF. I don't have any problems starting different than any other carb. Each car may be different, I give two pulls on a cold engine with throttle opened and full choke. Starts with quarter pull every time in the garage. The more people Watching the higher the odds are it'll Never start... Ha ha

The OF was the best selling carb of the day for $15. and that was a pretty good amount then and today they also bring a premium. Good Luck with yours
1912 Torpedo Roadster

Post Reply Previous topicNext topic