With it’s flared wheel arches, frenched in lights, and custom interior the Jensen Interceptor is ready to take it’s 412 hp, 478 ft-lb, 440 ci engine to the streets of the Northwest United States.
After: 1973 Jensen Interceptor
Tag Archives: Dyno
ZYA
Local Datsun guru Ed brought his Datsun 280Z over for us to run his car on the dyno and gather information useful for tuning future 280Zs. He had spent years tuning this car by hand and the dyno showed that he had it spot on.
Better Healey
Now upgraded with twin 45mm Dellorto two barrel carburetors the 1974 Jensen Healey Series II starts better, runs better, and a joy to drive compared to having the original Strombergs.
1966 Marcos 1500GT
The GT body style was first introduced in 1964 with a Volvo B18 unit with overdrive gearbox and De Dion rear axle. In 1966 they switched to the Ford Kent “Formula Ford” engine. The plywood chassis was glued together from 386 separate pieces and was not only light and strong. Although most people have never heard of Marcos which ceased production in 2007 you have heard of the drivers who raced them. Among the drivers were Jackie Stewart, Bill Moss, John Sutton, Jack Gates, John Mitchell and Jackie Oliver, as well as Jem Marsh.
Might Be Adequate
Rolls Royce has famously advertised the horsepower of their cars as either “adequate” or “sufficient” instead of printing an actual number. Today we find out if the power made by the 6.25 Liter Rolls Royce V8 in this 1961 Silver Cloud is actually adequate.
Most with the Least
The DynoJet is a great tool for more than just seeing horsepower and torque numbers especially on a car with a small engine. Using the DynoJet on this 1953 Ford Anglia we can scientifically check how the carburetor is functioning, ignition health, top speeds in each gear, and accuracy of the speedometer.
Tale of Two Octanes
Running this Shelby GT500 Super Snake first on 91 octane pump gas and then on 98 octane Sunoco racing fuel confirmed what we saw two weeks ago with the GT350 that these cars will greatly benefit from higher octane fuels. The Super Snake saw an increase of 46 hp giving it around 740 gross horsepower.
50 Years Coming
Fifty years after the original Shelby GT350 a new one is now available in dealerships. Ford rates this 2016 Shelby GT350 at 526 hp but it wasn’t until we drained out the premium pump gas and put 98 octane Sunoco race fuel through it that we were able to see those numbers. To our surprise switching fuels netted a gain of 25.5 horsepower with this car.
Anglo American Hemi
Jensen used Chrysler V8 engines for the Interceptor with a 4-barrel carburetor 440 c.i. engine they produced 305 hp SAE net. Mated to an automatic transmission this car was a true GT that could cross continents effortlessly.
Uncommon Dyno
We have had the DynoJet for just shy of a year now and by the end of the year it will have seen a fair share of interesting makes and models. The DynoJet is great for much more than just finding out how much power or torque a car makes. You can analyze the fuel to air mixture, ignition condition, finding leaks, engine break-in, and even aero dynamic effects on gearing.
Tuned Binder
One has to wonder if an International Metro has ever been on a dyno before. The old Silver Diamond 220 doesn’t make much horsepower but it has plenty of torque.
Fastest SAAB
It was a pleasure to have this land speed record holding two stroke SAAB Sonett at the shop today. Hearing this car on the dyno is not for those who do not like loud noises. See this car tomorrow in downtown Des Moines for the Des Moines Concours.
Birkin S3 Lotus Super Seven
Lotus released the second generation of the Lotus Seven in 1961 and it was such a hit that there have been many copies made over the years. This Birkin S3 is a modern interpretation of the Lotus Seven with a similar tube frame and a twin cam Ford engine.
CMC Restricted
This new Camaro Mustang Challenge build was just finished and is here for inspection and certification. The engine was making much more than the owner expected and the restrictor set wouldn’t bring it down to spec. After fashioning a custom restrictor this car is right on the mark and can be seen at NASA events very soon.
Six Cylinder Jag
A couple years ago we pulled this 1969 Jaguar XKE out of a shed and after restoration and some time on our DynoJet this car runs like a dream.
SU Tuning
Using the new Dynojet we can now tune carburetors in a quarter of the time and we have solid quantitative data to know that we have it right where it should be.
First Dyno Run
Our new Dynojet with Eddy Current Load Absorption Unit to perform loaded tests is up and running. We now have the ability to run the cars in a controlled environment at all speeds and loads to make sure the car is running optimally.
