Listers,
You may remember I did ask some questions about installing SU carbs on a
TR6. Well, last week I finished of a rather longish preparation period by
mounting the carbs and this Sunday morning the ultimate test was a two hour
drive on the famous old 'Nordschleife'. As I still have the biggest smile on
my face I tought I'd share some with my cyber TR friends.
This is what I did to the carbs: I got a pair of Rover 3500 SU HIF6 carbs
from a bloke in the UK, these are a 'mirrorred' pair like HS6 carbs. I
completely rebuild these and changed the linkage so it fits the Triumph six
cylinder engine and the TR6 linkage. As the carbs are of the same era as the
TR6, all hoses including crankcase vent and float chamber vent hook up easy.
The biggest task was making up a choke connecting rod with a curve in it to
clear the throttle linkage. A pic is available on request for those
interested!
My engine is a bit warmed: Kent TH5 fast road cam, compression of about
10:1, sports exhaust and twin K&N's. Based on epert advise I opted for BCQ
needles and am rather happy with them. At 2000 rpm and up the engine is
running like a champ, the pick up from 1000 rpm (with a hot engine) needs
some improvements. Also, in the current great summer wheater, I have no
cooling problems of any kind, not even after the track experience below.
This morning I had the opportunity with a few Dutch friends to join the
German TR club in an outing on the Nuerburgring. See www.nuerburgring.de
(and switch to English bottom right corner). We got to drive the famous old
racetrack 'Nordschleife' from 8 to 10 am and I did a total of 7 laps of 20,7
km's. Though not really timed the lap time was short over 12 minutes, not
bad at all for a TR6 and a driver (me) that is not familiar with the track.
Few are because of the length of the track and the accidented terrain. They
call it 'the green hell', and you will lift of on a number of points on the
track because you just can't see where you go.
The top speed down the straight was, according to a wobbly speedo, above 180
km's. And while the ring technically is a public one way toll road, speed
traps are non-exist.
Needless to say I had a blast!
Cheers to all,
Marc
1974 TR6
The Netherlands
|