Tag Archives: Engines


Pontiac Power Video: 535ci Of Butler Performance Built Blower Motors Cranks Out More Than 800hp!

This is the cure for the common LS engine. You are going to watch an awesome 535ci, Butler Performance built Pontiac engine whine and grunt out more than 800hp and more than 850 lb/ft of torque on the dyno. The insane thing is that the torque peak is made at 3,8000 RPM according to the Butler guys so that would make this thing an awesome street engine in every way. It will mangle tires from here to eternity. We have no idea what model of Pontiac this engine was headed for but we can only guess it is a GTO of some form or fashion. We’d love to see it in a Bonneville or Catalina but we likes ’em big. That’s just our thing.

Note the fact that this thing has a damned AC compressor hooked to it as well. That means whoever is driving around with this monster under the hood is also going to be doing it in comfort. How cool is that?! Far be it from us to suggest modifying he awesome work done by Butler Performance but if one wanted to make some more horsepower in a pretty quick fashion they could swap out the wagon-wheel sized top pulley on the blower, load the thing up with good gas, and really let it eat. Dumb for a street engine but interesting for the occasional trip to the strip, right?

We love the fact that people still crave engines like this and the fact that Butler Performanc is still a thriving performance business even a decade after Pontiac ceased being a thing. Who needs an LS engine, right?

Press play below to see this Butler Performance Built 535ci Pontiac make 800+

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Small Block Ford Intake Testing – Single vs Dual Plane On Both 351 Cleveland And Windsor

The world of intake manifolds is a diverse one, where dual plane, single plane, tunnel ram, IR, cross ram, long runner and short are available for just about every popular engine combo. And because modern intakes have gotten more and more modular, there are lots of ways to configure intakes for your particular application. But with the increasing number of throttle body fuel injection systems, and the still much larger number running carburetors, the age old discussion of dual plane vs single plane is a valid one. There has always been a belief that single planes are for racing and dual planes are for street cars, but with the ever increasing performance potential that we take advantage of, our street cars are getting more and more powerful all the time. So does the rule still apply? Is single really only good for the race track? Are dual planes only good for a cruiser?

Thanks to our friend Richard Holdener, we’re going to see the results of some testing with both a 351 Cleveland and a 351 Windsor on the dyno at Westech Performance Group. Watch, look at real data, and listen to the conclusions Richard has come to after years of dyno testing. Then use the info to help you make the right parts decisions for your bitchin Ford build.

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Not A Supercharger: This All-Billet Four Rotor Engine Build Is Awesome And Wild!

It was 1991 when Mazda won the 24 hours of Le Mans with their famed C787B race car which was powered by a four rotor version of the company’s rotary engine called the 13J (also built as the 26B). Instantly, rotary engine fans everywhere wanted a four rotor mill. It was never made as a production line engine but over the years people have gotten creative and stacked the rotors in about every form you can think of, building their own and even larger versions. This being said, using factory parts has it drawbacks and this video goes over those drawbacks and shows an-all billet version of the engine going together. Sure it looks like an overgrown blower, but this is actually a big horsepower maker.

Filmed in Australia where the rotary engine has a really strong following (chased only by the USA on this front) we are at the Promaz engine building shop to see how they assemble one of these and to learn some of the tricks of the trade as well as some of the inner workings of these amazing billet parts.

You are looking at probably $45,000 worth of engine before it has even been completed here. These things with boost can produce 1,500+ horsepower so it’s not like there isn’t payoff but it’s big money for a very specific way of making horsepower.

Watch the build and appreciate the engineering!

Press play below to see an all-billet four rotor engine get bolted together –

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Lifter Ill Redux: A Demonstration Of The Gen 3 Hemi Camshaft And Lifter Issue

One of the most infamous videos Uncle Tony has ever released  was his call-out of the cam and lifter issue that third-gen Hemi engines have been known for. The answer is pretty much the same, especially on MDS (cylinder deactivation) equipped engines: a seized lifter roller bit into the camshaft. Jalopnik has discussed this in deep technical detail. Plenty of forum posts, NHTSA complaints, et cetera…it’s a known fact that there are certain issues with the Gen 3, and that’s not to call it out as a bad engine, just that it has an issue that you need to be aware of, like trying to get over 500 horsepower out of a Ford 302 without splitting the block in half. The short story is that the lifter roller’s needle bearings do not get the lubrication they need due to a lack of splashing oil from the crankshaft at low RPMs or idle and the shallow angle of the lifter is not conducive to get oil fed up at the top of the lifter down to the roller.

The controversy started the second the video went live. Many claimed that Tony had figured out the issue and were heaping their praises, many said that there was no way it was possible, many claimed that this was another case of “old man yells at cloud” and wrote him off as a kook, somebody who hated any engine that didn’t come with a carburetor straight from the factory. Well, this time around he’s going to show you…not just tell you, but show you…what is going on within the engine that is at least part of the problem, if not the entire problem.

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1962 Oldsmobile F-85 Jetfire Hardtop Coupe

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

Note: The following story was excerpted from the February 2017 issue of Collectible Automobile magazine

General Motors was flexing its engineering muscles in the early Sixties, especially when it came to the corporation’s new Y-body small cars. The line of 112-inch-wheelbase premium compacts included the Pontiac Tempest with independent rear suspension and curved “rope drive” driveshaft. Meanwhile, the Buick Special and Oldsmobile F-85 bowed in 1961 with an aluminum V8, followed in ’62 by a 90-degree V6 initially exclusive to Buick. 

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In April 1962, Olds introduced America’s first mass-market turbocharged car, the F-85 Jetfire. (Chevrolet brought out its turbocharged Corvair Monza Spyder about a month later.) A turbocharger uses the force of escaping exhaust gas to turn impellers that raise air pressure in the intake manifold, forcing the fuel mixture into the combustion chambers for more power. Working with Garrett AirResearch, Olds adapted a turbocharger to the 215-cid aluminum V-8. Where naturally aspirated versions made 155 or 185 horsepower, the Jetfire’s “Turbo Rocket” version put out 215 horsepower.

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

Turbo engines usually have reduced compression to avoid preignition or “pinging,” but to reach the magic one-horsepower-per-cubic-inch mark, Olds engineers used a high 10.25:1 compression. To head off detonation, an ingenious fluid-injection system added a 50/50 mix of water and alcohol (“Turbo-Rocket Fluid”) to the fuel mixture to lower the combustion-chamber temperature. A wastegate limited turbo boost.

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1962 Oldsmobile F-85 Jetfire Hardtop Coupe

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

Inside, a vacuum-boost gauge on the standard center console indicated if the turbo was doing its job. The gauge also included a warning light to remind owners to refill the Turbo-Rocket Fluid tank—a bottle in the engine bay held an emergency supply. 

A Jetfire could go 0-60 mph in 8.5 seconds and had a top speed of 107. The quarter-mile run was achieved in 16.8 seconds. All Jetfires were hardtop coupes with standard front bucket seats. The Jetfire cost $3049.

Photo Feature: 1964 Ford Galaxie 500 Four-Door Sedan

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

Oldsmobile engineers came up with a lot of ingenious engineering to make the turbo work, but ultimately the engine was unreliable in the hands of average owners who often failed to refill the Turbo-Rocket Fluid tank. In 1965 Olds recalled the Jetfires to replace the turbocharger with a conventional four-barrel carburetor. Today, turbos benefit from computerized technology and are increasingly popular because they generate more power from small, fuel-efficient engines. 

Photo Feature: 1951 Jowett Jupiter Convertible

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

1962 Oldsmobile F-85 Jetfire Hardtop Coupe

Only 3765 Jetfires were sold in 1962, with a further 5842 built in its final year of 1963. It’s estimated that only 30-35 with a functioning turbocharger remain. One of them is this Chariot Red ’62 owned by Rich Baughman of Churubusco, Indiana. It is one of only about 50 ’62s with a four-speed manual transmission.

Baughman and a friend rebuilt the engine but sent the turbocharger to Turbo Rocket expert Jim Noel for restoration. Given the car’s rarity, one of the hardest tasks was finding parts. Baughman didn’t plan to show his car, but it turned out so well that it has been retired from judging in Oldsmobile Club of America and National Antique Oldsmobile Club events. 

How Turbocharging Works

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1962 Oldsmobile F-85 Jetfire Hardtop Coupe

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1962 Oldsmobile F-85 Jetfire Hardtop Coupe Gallery