Throttle Body Fuel Injection Conversion on a Triumph Stag

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Stag that needs some help.

Stag that needs some help.

We have here a Triumph Stag with its original Triumph engine. Stags have benefited greatly from the continued development undertaken by owners since Triumph went out of business. I dare say if you wanted to get a Stag and have it run dependably you could now do so. Personally, I like the Triumph For The Family Man, though I also confess I favor the Rover V8 conversion (gasp!), but I’m getting off topic.

Jobs 1 and 2 on this particular Stag are a window switch that blows breakers and windshield wipers that don’t move. Let’s discuss the window switch first. As Dean explained to me, rather than simply reverse the polarity at the window motor to accomplish the up versus down of the glass, British Leyland’s electrical wizards decided it was better to use the window switch to reverse polarity. That makes for a more complicated switch. This particular complicated switch was trying to both raise and lower the window at the same time whenever you pressed it for anything. Whoops.

On to the windshield wipers. Take a gander at the photo below of the wiper motor. Double click to blow it up if you need to.
Triumph Stag wiper motor
Rust has welded parts together that are not supposed to be joined together. We’ll be looking for a new wiper motor.

BUT NONE OF THAT IS AS INTERESTING AS FUEL INJECTION. Yes, the owner has decided he’d like to add fuel injection. So, we’ve ordered the parts from Patton Machine to install it. I will get some photos of the installation once it’s done so you can see how it looks, which will be fairly close to stock. This came about because he was discussing with Chip what he wanted from the car. I don’t know the exact quote, but something along the lines of “I just want to turn the key and drive it” was the thought. Fuel Injection seemed a good choice.

What are the benefits of this magical fuel injection? Horsepower? No. Rather than words, I’m going to ask you go to this page and watch the video of a cold start on a TR6. THAT is the benefit of fuel injection.

I am, admittedly, a biased fan. More info here.