Set of 3 9 Super 7® 3-Bolt 2-Barrel Carburetors, Plain Finish

Description

Features stainless steel linkage and hardware, Grose style fuel inlet, Nitrophyl float and an extended shaft to make multi-carb linkage easy to install, Accepts original jets and components, Comes with .045 jets and 6.5 power valve, New aluminum base assembly allows for cooler fuel temps and better fuel efficiency as compared to the original cast iron design, Extended brass throttle shaft to simplify multi-carb linkage
Set of 3 9 Super 7® 3-Bolt 2-Barrel Carburetors, Plain Finish
Sku # 915116553
Mfr. Part # 915116553
Condition
New
Brand
Speedway Motors
Sold
Kit
Details
Info
Speedway Motors now offers a reproduction version of one of the most popular carburetors ever used, the original Stromberg 97! Original equipment on 30s and 40s cars and trucks, the Stromberg 97 has long been favored by flathead hot rodders and racers who realized the performance qualities of this timeless fuel supplier.
There have been numerous attempts to reproduce this unit, with little success. "Speedy" Bill Smith of Speedway Motors in Lincoln, Nebraska, took on the challenge to make a great product even better. The 9 Super 7® Carb brings this reproduction of the original Stromberg 97 2 barrel carb into the 21st Century!
Speedway Motors has incorporated all of the improvements shown above while maintaining the carburetors original look. Features such as the choke assembly, , and cosmetics have all been faithfully retained. Additionally, each carburetor is individually flow tested and inspected for leaks. Perfection is the result!
Aesthetically, the 9 Super 7® is nearly identical to the stock unit, minus the large 97 logo that appeared on the side and the patent numbers found on the float bowl area. Upgraded internal parts include; the float, needle, and seat. Jetting and power valve settings remain as they were for the original 97 carbs as well as the cfm and vacuum specs.
The other similarity that the 9 Super 7® shares with the original 97 is the setup and tuning necessary to yield a well-running machine. While perhaps not as simple as bolting on a single four-barrel, the 9 Super 7® makes setting up a multiple carburetor induction system easier than when Strombergs were available new. All thats required is an intake, a , a , and a little patience. Our 3 Carb kits come with one primary carburetor and two secondary carburetors while the 2 Carb kits are both primary carbs. See our for more information on using the 9 Super 7® in a 2x2 or 3x2 carb tri power set-up.
On the primary 9 Super 7® carb the throttle shaft extends from carb body .983" and has the hole on the end to pin the linkage. There is a brass sleeve that the throttle shaft rotates in that extends from the carb body .400 and this leaves the useable throttle shaft length of .583. There is sufficient room for progressive linkage and the manual throttle linkage that rotates over the sleeve.
Three Deuce carburetor setups come with two "secondary" carbs for front and rear intake position and one "primary" carb for central/middle position
All-new tooling for crisp, flawless castings
New aluminum base assembly allows for cooler fuel temps and better fuel efficiency as compared to the original cast iron design
Stainless steel screws and hardware
Features original Stromberg 0.97" venturi diameter
Modern Nitrophyl float and Neoprene gaskets
Original troublesome needle and seat replaced by a Grose-style fuel inlet valve to better cope with higher fuel pressures and improved high speed running
Will not stick or dribble like the old Viton-tipped needle and seat setups
Grose-style jet valve wont corrode in modern fuel, something the original needle and seat units cant do
Comes with a No. 65 power valve and 0.045" main jets, identical to the stock 97
Extended brass throttle shaft to simplify multi-carb linkage
Primary Carb - (1) Middle Position
Choke assembly, accelerator pump, and jets have all been faithfully retained and accept standard Stromberg parts
Secondary Carb - (2) Front and Rear Position
Special base plate with no idle circuits or choke linkage
Special butterflies and shafts installed
Works best with progressive linkage
Idle only off the center or main carburetor
No more plug foul
Note:
The secondary carbs have NO choke, and they have NO idle system. Not recommended for use with Ethanol fuels.
Recipient of the NSRA 2009 Best New Product Award!
Recipient of the Goodguys Best New Product Award!
-
Engine and Transmission, Goodguys PPG Nationals 2009
Charts
(PDF)
Installation Tips
Features .045" main metering jets and a number 65 power valve, which is the same as a stock 97 carb.
Replacement use # 91011542, replacement use # 91011543.
Includes base gasket.
The 9 Super 7® will operate suitably with fuel pressures ranging from 1-1/2 psi to 4 psi, with a desired setting of 2-1/2 psi to 3 psi. Fuel pressure from 4 psi to 7 psi will cause the carburetor to run excessively rich and may cause flooding. Flooding or leaks caused by excessive fuel pressure do not indicate a faulty carburetor. A fuel regulator such as # must be utilized in order to keep proper fuel pressure at the 1-1/2 to 4 psi range.
There are no provisions for a vacuum advance line. Ford & Mercury engines 1949-1953 using stock distributors will need an alternative place to connect the vacuum line.
Our independent tests produced these flow numbers:
3" of Vacuum - 60 CFM
10" of Vacuum - 110 CFM
15" of Vacuum - 136 1/2 CFM
28" of Vacuum - 184 CFM
Learn more about setting up 3 x 2 carbs using the 9 Super 7® in
Street Rodder
Magazine's tech article, .
See what other industry experts are saying about the 9 Super 7® .
Specs
Sold in Quantity
Set
Finish
Natural
Choke Type
Manual
Fuel Type
Gasoline
Carburetor Barrels
3 x 2-Barrel
Secondary Type
Mechanical
Carburetor Flange Type
2-Barrel 3-Bolt
CFM
552 CFM
New or Remanufactured
New
Notes
This Product is a Kit. (1) #91511655 is a Primary Carburetor and (2) #91511656 are the Secondary Carburetors
Gasket(s) Included
Yes
CFM Range
500-599 CFM
MFG. Part #
915116553
Reviews
A Positive purchase made with hesitation, turned out GREAT!
Rated
by EDDY"P" on November 18, 2020
Summary:
I was leary about buying these carbs after reading postings on a very prominent web site. They suggested rebuilding your old 97s. Well my tri-power set of 97s were fairly good, ran not to bad, but were a real pain to set all 3 up. So with hesitation I purchased Speedways set of 3 Super 7s and was pleasantly surprised, They ran fairly well right out of the box, a quick tweak and my "Y" Block ran perfectly. My original 97s will be going up for sale very soon!
Yes, I recommend this product.
Great product
Rated
by Charlie fixx on October 20, 2020
Summary:
I bought these to replace my old worn out 94s Installation was easy everything fit with some modifications turned the key to start and ran perfect only bad part was no choke cable kit for these carbs had to modify old cable to fit But it was worth it
Yes, I recommend this product.
Yes i would
Rated
by Bob on December 30, 2019
Summary:
They are on my 1932 Ford roadster
Cons:
None
Pros:
Good carbs
Yes, I recommend this product.
I would buy this again
Rated
by Donn on October 01, 2019
Summary:
A great replacement for the Ford 94 carbs a much better vintage look. I would like instructions on how and where to add a vacuum port for my vacuum advance distributor.
Yes, I recommend this product.
LOOK GREAT AND ALUMINUM BASES ARE A BONUS
Rated
by Mikey on June 13, 2019
Summary:
LOOKING FORWARD TO USING THEM ON MY 283 !
Yes, I recommend this product.
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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