Search results
Mar 26, 2001 · The following is my best understanding of Spitfire engine tuning and for the most part should obviously not be regarded as the opinion of a professional engine builder.
Feb 4, 2024 · I recently acquired a 67 Spitfire. first, not sure which engine; i suspect the 1150 engine but i'm not sure. i clearly need to tune this guy, but i don't know the specs. i believe i should set timing first, but don't know where to set it. then probably balance the carbs,
A few manuals I found recommend against using static timing on cars with electronic ignition. BTDC= Before Top Dead Center ATDC= After Top Dead Center. ***The recommended timing for a Mk1 or Mk2 Spit. Adjust as follows: Rotate the Vernier adjuster knob counterclockwise until it won't turn anymore.
- Starting Simple
- Not-So-Complex Carbs
- Going Continental
- Numbers Game
The first step is buying the right parts. The key here is getting the entire setup, including the linkages. Ideally, you’d also get carburetors that aren’t worn out. Remember, these parts may be nearing their 40th birthday, so go with a reputable dealer. In our case, Quantum Mechanics sold us a brand-new downpipe to match the European exhaust manif...
Freshening a carburetor is not as scary as it sounds, and companies like Quantum Mechanics supply the necessary kits. The process is mostly a function of carefully cleaning, disassembling and reassembling each carburetor while installing new gaskets. The idea is to remove all the accumulated junk, especially from critical areas like the float bowl ...
After refreshing the carburetors, the next step is simply to replace the intake and exhaust manifolds with the European-spec pieces. The exhaust manifold goes on first, underneath the intake manifold. Use new gaskets and properly clean all mating surfaces. Bolting on the new carburetors is easy, and since this is a factory setup, the throttle cable...
Theory is great, but how much does this swap really help performance? Before the swap—and with the original single-carb unit properly tuned—our Spitfire produced 49 horsepower and 66 lb.-ft. of torque at the rear wheels, as measured on a chassis dyno. Remember, these cars were optimistically rated at about 70 horsepower at the crank. By the time yo...
For a typical Spitfire, a reduction of 25 to 30 pounds is equivalent to adding one horsepower (not counting other benefits). Roughly speaking, increasing Spitfire engine peak power to 90 bhp and beyond (i.e., 1 bhp or more per cubic inch displacement) enables crossing the 100 bhp/ton, 10 second 0-60 threshold.
Below is the list of figures from the Triumph Tune list of camshafts in ascending order of top end output, I have included a short note on each for its best use. If you have an alternative camshaft supplier you can draw similar comparisons by getting similar specifications to the ones below.
People also ask
How much horsepower does a Spitfire have?
What happened to my Triumph Spitfire engine?
Are Triumph Spitfires any good?
Do Triumph Spitfire 1500s have dual SU carbs?
Can Triumph Spitfire 1500 and MG Midgets be improved?
Are Spitfire & GT6 transmissions interchangeable?
Building a Reliable Spitfire Engine for High Performance v1.45 Title Page | Table of Contents | I- Forward | II -The Golden Rule | III- Use Which engine?
