HYPOTHETICAL - Rocket 3 powered Stag

[Squall0g]

I'm gonna get straight to the point here. The 2.4 litre inline 3 that Triumph stick in their Rocket 3 Storm has remarkably similar performance figures to the V8 they put in the Stag.

I don't have an exact dyno chart, but it makes peak torque (~ 225nM) at 4,000 rpm, slightly over that of a stag, and makes peak horsepower (~ 180) at 7,000. The Triumph V8 made, I believe, 230nm of torque at 3500 rpm and 145hp at 5500.
these numbers don't match up perfectly, being a motorcycle engine - albeit a big one - the Rocket 3 revs a tad higher, and it does make slightly less torque.
That said, it'd be really interesting to see dyno charts for both of these engines side by side. Given that it makes generally more horsepower, I reckon the Rocket 3 engine probably would meet or exceed 145hp at 5500 RPM.

I'm not sure if anyone is ever going to do this, though if I ever have the means I'd like to try, but i reckon, with some ECU tuning and a supercharger to increase low rev power, the inline 3 from a Rocket Storm could power a Stag.
If anyone else has thought of this, or has more details on the characteristics of the Rocket 3 engine, feel free to comment.

[jbuckl]

Power tech v8 bike based (hayabusa) does it for me … Steve Owen’s brainchild, as fitted to a few hillclimb cars. (OMS) as driven by Trevor Willis.

The triumph triple clutch & transmission would need a rethink due to the cars weight….. may require crankcase alterations or a tear up.

[Squall0g]

Power tech v8 bike based (hayabusa) does it for me … Steve Owen’s brainchild, as fitted to a few hillclimb cars. (OMS) as driven by Trevor Willis.

The triumph triple clutch & transmission would need a rethink due to the cars weight….. may require crankcase alterations or a tear up.

yeah, the bike gearbox would have to go. I don't know for certain, but most bikes have that built into crank case so a modified case would probably need to be fabricated to allow the stag transmission to go on

[jbuckl]

It seems as if both variants of the rocket engine have an integrated transmission…. As most motorcycle power units do…. But at least the take off is north south.