On Wed, 26 Nov 1997 23:32:16 EST LO soccer <LOsoccer(at)aol.com> writes:
>OK i bought the Series II special tuning book from Sunbeam
>Specialities. I
>got better info when I built my Fiat 850 race car. Are any of the
>parts
>listed in the book still available, or does anybody have
>specifications for
>flywheel lighting, cam design, valve spring tension etc. Forza had an
>excellant book on modifing the Fiat engine. Any information to start
>tracking northwest connections are appreciated.
>
>david in L.O. Oregon
The Series II tuning book gives a number of really important tips that
are just about mandatory for building up a hipo SII, but I would treat
it more as a refference book than anything else.
The linkage mods are really important, as is the engine torque retraint.
If you are goona be making some corner G's, the baffles in the axle
are important too. To keep the front cover from filling with oil,
head the blanking plate cover mod.
Few if any of the parts are still available, but the specs for the
original cam "as they saw it", are published in the book.
After some listers took interest in reproducing the series II competition
sway bar last year, Sunbeam Specialties now stocks them, and I am
happy to say it fits perfectly.
Jets and stuff like that may me available, but most builders would be
more inclined to dump the OEM carbs in favour of dual sidedraught
DCOE webers "Hartwell option".
As for springs ECT, If you use standard valves, the valves dont float
untill 6000 RPM, and the bottom end wont take more revs anyhow,
so most will agree that standard springs are just fine.
If your ambitions go beyond making a strong 6000 RPM motor,
then you are going beyond what the factory invisioned for this motor,
and thus outside the scope of the tuning manual.
As for the flywheel, I sent my clutch and flywheel to McLeod clutches,
and they grafted a hipo single disc 8 inch clutch from a formula atlantic
engine. The clutch is made from billet aluminum, and is so much smaller
in OD than even the 7 and 1/2 inch piece, that they were able to take
a huge ring out of the outer diameter of the flyweel. The clutch and
flywheel lost 14 lbs, and the inertial effect is even more significant as
the mass was removed from the outside of the clutch.
There are people who have livened the Rootes motors up, and even
race various Rootes cars. Some of which are on this list.
Also, I have procurred "through hook and crook" an extensive list
of performance writeups on the alpine engine.
I would say that specific information requirements might be directed
toward the list. Someone out there will have some usefull info,
if not a really good opinion.
Jarrid Gross
61 SII B9116899 OD LRX
This archive was generated by hypermail 2b30 : Tue Sep 05 2000 - 10:02:56 CDT