torque converter

Q: I have a 1969 Chevelle with a 402 big block, a Turbo 400 transmission, and a 12-bolt rear axle with 4.56 gears. I used to run 7.20s in the eighth-mile and wanted to go faster, so I had an 8-inch converter built and a trans-brake installed. Now the converter won’t stall. It was designed to stall

Because we must understand how certain parts work to make the best choices for our specific application, this edition of Carl’s Tech Talk video series from Summit Racing begins with tech expert Carl Pritts explaining the finer points of torque converter operation. The rpm at which vehicles begin to move can be changed by modifying

Q: The 350 Chevy in my ’73 Pontiac LeMans needs a new bumpstick, and I’m looking at COMP Cams Extreme Energy XE274-10 camshaft (part #CCA-CL12-246-3). I plan on running a TH-350 transmission with a 3,000 rpm stall speed converter and a 3.42:1 rear-end ratio. Plus, the engine has a 10.0:1 compression ratio, and the car has

I have a ’69 Chevy C-10 pickup with a 383 stroker small-block and a TH350 transmission. We recently put a bigger hydraulic lifter cam and headers on the engine to make a little more power. Before, the cam was really mild and idled like a stocker. The rest of the engine is Vortec iron heads,

EDITOR’S NOTE: What are the top high performance automotive parts of all time? Or in this case, what are the Top 20 most iconic parts that changed hot rodding? We’re talking total game-changers in the annals of our hobby. We asked a panel of OnAllCylinders staffers, longtime automotive journalists, and veteran members of the Summit Racing technical and marketing

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re nailing down the right combination of tire size, gear ratio, and torque converter stall speed for a Pro Street Plymouth. C.C. Governors Island, NY Q: I am building a 1948 Pro Street Plymouth Club Coupe for weekend cruising and

You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re troubleshooting drivetrain vibration. Q: I have two questions about my truck. It’s a 1994 Chevy C1500 pickup with a 4.3L Vortec V6 engine. I purchased it from  my uncle, who converted it from a manual transmission to a TH-700-R4

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re making a few jetting changes to accommodate for high-humidity racing.                                 D.D. • Agana, Guam Q: I recently bought a 1970 Plymouth GTX. It came equipped with a Chrysler 440, a 750 cfm carb on an Edelbrock manifold, a stock Chrysler