Check out this new Stromberg BIG97 video, awesomely directed for us by Piero De Luca. We love it and you will too. And thanks to Walden Speed Shop for the location! For full BIG97 details and pricing, please click here for the Stromberg BIG97 page.
It’s hard to beat the patina of old chrome Strombergs – those 97 carbs lucky enough to have felt the polisher’s hand way back when. Knowing what we do now about how hard it is to chrome passivated zinc, it’s a miracle any were done in the first place, let alone survived. But we’re glad they did. It’s like they have a life all of their own. If they could talk, what stories would they tell? Whatever their history, here’s a few examples of old chrome Strombergs that are still doing great duty in their current lives…..Click on the pics for bigger views.
We’ve worked hard this year on new solutions for Stromberg 6×2 set-ups, and here’s another smart idea that makes things even easier. Stay with us. It’s complicated!
Banjo fittings have always seemed a clean solution for 6×2 sets because you can run just two simple hose lines to the back of the engine and fit a fuel block on the firewall. Yet you never see it with progressive linkages. Why? Because progressive linkages with banjos also need banjo spacers to move the feel line away from the long center lever arm. But if you do that, you get into another issue, as the progressive linkage sliding rods on each bank must pull the front carbs open, because of clearance issues with the back-bar. And the sliding rod hits that banjo spacer.
Our new 9086K-C Banjo Spacer with Clearance solves that issue. Fit one to each center carb on your 6×2 and you will provide clearance for the forward-facing sliding rod. Job done! Of course, this also works for 3×2 linkages if you need to configure it in the same way. Check the new pieces out on our website and speak to your Genuine Stromberg dealer today!
The Installation Guide for the All-New Stromberg BIG97 can be found on the Stromberg Tech Center at www.stromberg-97.com, along with a lot of other tech information. So if you want to read up before you make a purchase, it’s the ideal opportunity. It covers not just the carb installation but tuning tips for the BIG97 Tri-Power. If you click on this link, it will take you straight there. BIG 97 Installation Guide
We’ve been talking about our new BIG97 for far too long already. But now they’re available. Here’s the press release to start with. And we’ll be posting far more (i.e. everything we’ve got!) in the coming days and weeks. Please stay tuned!
May 2015. New BIG97 makes traditional carburetion available to a new performance audience.
Stromberg Carburetor is excited to announce the all-new BIG97 Tri-Power. On the outside, it’s all Genuine 97 – the original hot rod 3×2. But on the inside, an incredible 750cfm air flow makes traditional hot rod carburetion available to a whole new performance audience. Designed on the classic Primary/Secondary format with many new and exclusive features, the all-new BIG97 Tri-Power is the perfect bolt-on for your performance small block Chevy or Ford.
- BIG 750cfm airflow – 55% more air than regular 97s
- Signature 97 outside shape – No change!
- New power valve circuits improve fuel conditioning
- New ‘early plenum effect’ boosts top end power
- Ported distributor vacuum adds mid range torque
- Progressive linkages and classic 3-into-1 fuel line available
- Runs out of the box. Pre-jetted for typical SBC/SBF
Stromberg owner, Clive Prew said: “With 750cfm in a three-carb package on a progressive linkage, you can cruise economically on the single Primary, then punch in the Secondaries when you step on the gas. BIG97s reduce the level of vacuum the engine has to pull to get the air it needs, which promotes higher air/fuel density. They also reduce mixture velocity which allows that denser, fuel-heavy air an easier, less turbulent, turn into the inlet manifold. Coupled with improved fuel conditioning, it all adds up to more power for your rear wheels.”
From the outset, Stromberg’s aim was to re-engineer the 97 venturi and throttle body to maximize airflow without changing the signature outside shape. But achieving as much as 250cfm per carburetor – some 55% more than a regular new 97 (at 162cfm) is only part of the story.
The BIG97 Primary carburetor has a new power valve, located in the fuel bowl. Feeding top end enrichment directly into the emulsion tubes, it significantly improves fuel conditioning for more horsepower on less fuel. How? Because the more it emulsifies the fuel, especially at high rpm when manifold pressure is low, the easier it is to atomize, distribute and burn. At the same time, an oval cut-out, just under the throttle plates (Stromberg’s ‘early plenum effect’ ) coupled with our recommended intake manifold modifications, boosts top end power by slowing the mixture down and allowing any cylinder to draw from both barrels.
BIG97 Primaries also come with a swap-in fitting to provide ported vacuum for your aftermarket distributor, improving combustion efficiency in cruising mode for more torque and improvements in fuel mileage too.
Finally, everything that’s made the Genuine Stromberg 97 so popular over the past ten years is built into the all-new BIG97: An early style cast iron base for low heat transfer. A reinforced air horn casting to eliminate warping and leaks. High tech gaskets. Stainless steel levers, linkage and springs. Original-style riveted throttle and choke shafts. And more.
Stromberg BIG97 Primary and Secondary carburetors are available separately or as a ready-to-run Tri-Power (one Primary and two Secondaries), with extra savings available on packages with Stromberg’s exclusive Small Block Chevy linkage and fuel line.
Further reading on all of the new BIG97 features and benefits is available on the Stromberg Tech Center at www.stromberg-97.com:
- BIG97 Installation Guide
- How To: Maximise BIG97 intake flow
- The All-New BIG97 Tri-Power. In Detail.
- BIG97 FAQs
The new Genuine Stromberg BIG97 Tri-Power is available through the worldwide Stromberg dealer network. Further details and help with installation is available at www.stromberg-97.com.