[6pack] PI Rocker Ratio?

[John Macartney]

> Jonmac-Even though the PI cars weren't marketed in NA, the TRF catalog lists
> all of the PI components, including a cylinder head for "police cars only"?

A strange decision for Mr. Runyan to make? Presumably he's selling kit for people to convert? As for 
the police cars, Standard-Triumph did sell a large number of cars to UK police forces. Mostly, they 
were the 2.5PI saloon car with a special police spec on several different fronts. On occasions, I 
drove these police variants when they'd been returned from different forces after evaluation as 
motorway patrol cars. They were considerably faster than the normal 2.5PI (132bhp) with TR5 & 6 at 
150bhp. At a guesstimate, I'd say the output was around 170bhp. They certainly had unique camshafts, 
different distributor settings, different heads and completely different datum track settings on the 
metering units. I do remember returning one to the factory in Coventry from London and this was 
fitted with a separate police spec speedo that was super accurate. All I do remember was that at 
120mph, the car was still accelerating and was very much on the level and not downhill. By contrast, 
the normal version sold to the general public would just about stagger to 110 downhill with a 
following wind.

Jonmac