Some enthusiasts opt for a Weber DGV down-draft or single side-draft 40 DCOE setup. While adding main bearings and redesigning thrust washers is not an easy feat, at least one of the engine’s problems can be addressed: without much headache better carburetion. To save money and meet the ever-stricter U.S. emissions standards, American-market versions of this 1500 were fed by just one carb, not the dual SU setup found on earlier Spitfires. The biggest problem with these engines, however, had to be the single, emissions-era Zenith Stromberg CVcarburetor. Thrust washers needed to be maintained, or crank walk would destroy them as well. The three-main-bearing design did not lend itself well to hard use. These engines were known to be delicate, especially if over-revved. Detractors complained of durability and drivability issues. More torque, as we know, helps produce better acceleration numbers.īut there were some problems. Right off the bat, this larger engine delivered more torque than its predecessor. Almost 100,000 of these engines were used in the 1973-’80 Spitfires, and nearly as many were used in MG Midgets sold from 1975 and later. While often lamented, Triumph’s 1500cc, four-cylinder engine is still owned and loved by thousands of enthusiasts.
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