It is indeed a tiger hundred barrel but count the fins, it's been machined down! It's an ultra-short stroke 350, with a crank that I made at varsity. Started life as a breathed-on 3TA motor which kept losing its piston crowns at high revs so I brought the piston speed down with a short stroke crank. I won't bore you with everything I tried but got it reasonably competitive in the end, running in the high 11's running on nitro. Because the short stroke killed a bit of torque, it was better at longer distances and I did a 30 second s/s mile on it with a terminal speed of 149 mph. It was pretty scary at those speeds as you correctly pointed out, the front end was fairly light construction and flexed a bit!
Fuel consumption was around 2mpg on 20% nitro. The Wal Phillips "injector" (remember them?) feeding the Shorrock C750 supercharger had a 3/16" main jet in it!
My road bike was a pre-unit T100 and the crash bars were essential for winter riding. God knows how often I arsed off it! It later had "ace" drop bars and I had a wonderful 2 weeks on it in '69 at the Isle of Man.
Mike - I preferred the 60's too, far less complicated. The main embarassment though was thinking and talking infinitely more about sex than actually getting it![]()
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Notalgia ain't what it used to be!
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