[Spridgets] SU Carb Help Sought

[miniac7 at aol.com]

Evidently somewhere in cyberspace my apostrophies and quotation marks are
being converted onto  the letters b and s.

You have probably already figured that the carbs in questions are the HS2 and
HS4 variety and that I am either looking for the help to come from someone
here on the list or from some other recommended SU expert. Those are my
clarifications to the previously sent message.

Thanks.



-----Original Message-----
From: miniac7 <miniac7 at aol.com>
To: spridgets <spridgets at autox.team.net>
Sent: Mon, Jan 16, 2012 10:53 am
Subject: [Spridgets] SU Carb Help Sought


I recently had an A-series engine built for a street driven Sprite and now
eed to select the intake system. I am trying to decide between twin SU
S2bs or twin HS4bs, and I have the following questions:
a) Which of the above choices would be most appropriate for this engine?
b) Which needles and springs should I start off with?
The engine spec is as follows:
1275 block bored .020 (1293)
urfaced .010 clean up cut
.625 con rods balanced and reconditioned
020 Omega 6 cc dish pistons with Swain Tech PC 9 skirt coat
275 12g 1316 smog head
orted and chambers shaped
ew cast valve guides
ard exhaust seats
.410 intake valves and seats cut to match
.150 exhaust valves and seats cut to match
ent MDM 276 camshaft
.5 alloy roller tip rocker assembly
sky springs and alloy caps
pprox. compression ratio 10:1
ertronix Ignitor Ignition
ebuilt and recurved Lucas 25d distributor
CB exhaust manifold with tuned exhaust
I am considering using twin pancake K&N air filters, possibly with internal
tub stacks.
If you cannot help answer these questions yourself, I would like to know who
he bgo-to-guyb is for these types of SU carb selection and tuning
uestions.
Thank you.
Howard Collins
irginia Beach, VA.
60 AH Bugeye Sprite
68 Austin Mini
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