[Fot] TR6 Injection Fuel Pump

[Robert M. Lang]

On Wed, 14 Oct 2009, Tim Murphy wrote:

> The claimed horsepower for the TR5 with fuel injection was 150, whereas the
> TR250 2.5 liter 6 cylinder with carbs was 104 or 105, same as the 4
> cylinder.

... except the TR6 is 8.5:1 with a wimpy cam and the TR5 is 9.5:1 with a 
pretty kool (35/65-65/35 timing or 280 degrees of duration vs 256 degrees 
for the fed. spec cam).

Just the PI cam is probably 15 HP, especially when you start moving the 
static compression up above 9:1.

Here's a fun chart:

http://web.archive.org/web/20021204091351/kvaleberg.com/t_tune.html

scroll down to the cam section.

> Tim Murphy

regards,
rml
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Bob Lang              Triumph TR6!!            |  This space for rent
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