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Bob’s blog.
We attended the July 7th race with about 30 winged FI sprint cars and several other carburetor fed racers and late models all competing in front of a couple thousand spectators; thanks to Dani Noceti and staff for a great evening; many couples and families with children all enjoying the competition; very safe and clean […]
On Sun, Jun 10, 2018 at 12:42 PM, Chris Murphy wrote: Hi Bob, I have Don Geradot’s Yellow ’78 Corvette Funny Car… John Dunn built a 540″ Fuel Hemi that he converted for alcohol: JP-1 Block, Veney fuel heads… SSI 14-71 Blower, Enderle Hat, CS-1 3 speed Lenco, & Crowerglide 3 disc pedal clutch. I […]
Dani Noceti & staff at Stockton 99 speedway did another great job organizing this event. All of these racecars on pavement are fast. The turn-around of the various classes was very quick. The racer participants kept their cars reliable with few show interruptions. I was impressed with all of the fuel injection cars storming out […]
Rons Fuel Injection provided MFI throttle body flow data so that we could analyze the power potential of these low cost, simple fuel injection systems. Racing engine sizes and horsepower potentials were determined at these flow cfm numbers for 100% air density, and are included. Rons FI MFI Toilets 3-3/4″ = 1240cfm: can feed 595 […]
Due to popular demand, we can now provide our ProCalc fuel injection jetting calculator already set up to run your fuel injection combination. This special service includes an extensive evaluation of your fuel injection setup and a custom fuel injection manual all about your engine. We have already done different fuel injection configurations, fuels, and […]
We will be at The Sacramento Autorama Feb 16-18, 2018. Email us at bob@racecarbook.com if you are attending. We’ll look you up and take pictures. This event is tops for Sacramento area hot rodders. A host of MFI and EFI powered hot rods and performance boats are featured. We will be studying them and again […]
Happy Holidays from all of us at RaceCarBook.com! We hope you’re 2017 was great with even greater things to come in the new year.
Engler Stumble Valve A recent provision from Tim Engler is his stumble valve. It is a normally open bypass valve that closes with pressure. Note: Most conventional fuel injection bypass valves are normally closed and open with pressure, such as for a high speed lean-out function.
Blower Sizing Review An example is provided for an 8,000 RPM Roots blower speed. That would be for a blower drive ratio at 1-to-1 on an engine spinning 8,000 RPM. It could also be for a blower overdrive ratio at 1.333-to-1 or 33.3% over for an engine spinning at 6,000 RPM. The 6-71 Roots […]
Restricted Fuel Pump Sizing with Inlet Restrictors Certain racing classes specify fuel pump flow value limits. The common way to achieve this is fuel pump size. However, another way to achieve this is to restrict the fuel pump inlet using a larger fuel pump. When this is done, it cavitates the fuel pump, limiting […]