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Clayto
Hahaaaa! Hilarious!
That is a score! Just gotta drive a little over the Cascades have a refill of shitty coffee and head home!
Two stroke is all you need right! Oh and some 44mm carbs!??
I think stock is 3 x 40mm.....
The hot ticket would me to call my ol' buddy from way back in '85 Bengt-Erik Ström just outside of Trollhättan who worked in Saab rally depeartement as engine development guy from 1959 thru end of 1980 season when Saab closed down SSR (Saab Sort and Rally) and went full time on his own..
and ask for the porting specs he did---then compare them to what I know...
See they were pioneers in hi-po 2 stroke tuning...The 1st serious reasearch apaper on exhaust tuning had only been published just in late 1958 or '59 by a filthy Commie East German named Dr Walter Kaaden---and Sweden being Socialists they had good contacts with the DDR.
Problem was that Bengt ported based on measurments from top of the block down to the ports..
And the ports is what gives you your "event timing"....
By time I was fawkin wif serious ring ding shit we were using a degree wheel for accuracy and repeatability....but by then Saab had long since moved to the mighty Ford V4...
Additionally in the moto-cross world the late 60s onward was flat intesive the amount of work on exhaust tuning--and by '74 the use of reed valve...
Reed valve are the shit..You can go nuts on intake duration but the reed valves make the intake side essentially demand sensitive....and keep the intake charge velocity high....no more "flame outs" if you dive deep into a corner and in all the mad braking in waist high bumps you flub a downshift and whack open the gas---if there's siddenly a wide open throttle the reed valves don't snap full open--since there low vacuum, they just kinda wheeeze open--and bang you have high velocity--and there's you low pressure--and you motor out of the corner..
All this was 7-8 years after Saab stopped with the mighty 850 3.
That's 283cc per hole. by 1974 my KTM was doing 33 hp at the back wheel for 250cc--and pulled like a truck...
The cylinders on the Saab can easily be bored +3mm and make the thing a whopping 940cc or 313cc/hole just choosing the old ancient 1974 spec that would be a easy approx 41.3 hp/cylinder or 124 rip snorting horses....
Those things are barely 1800 lbs , come stock with 5.43 final drive and you can see where this is going...
Adam Crane did pretty Ok with his Toiletta Commodah making under 100 hp and weighing in at over 2450lbs---pretty good in large part to the Volvo axle with Dana 30 and a 5.35 final drive.
More powerz and 25% less weight....and vastly better areodynamics for the high speeed stuff..
And a stock 2.2 turns rack, and big discs..
All this depends on one critical item: connecting rods and crank pins and fortunately there are rods and pins and bearings available again after 30 years of being GONE...
Everything else is easy.
John Vanlandingham
Sleezattle, WA, USA
Vive le Prole-le-ralliat
www.rallyrace.net/jvab
CALL +1 206 431-9696
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