Harve,
According to the SU Tuning Guide from SpeedSport the "AN" needle is the
standard needle and your springs should be Red. This would be a good place
to start given your modifications and work from there.
Due to the age of the book this listing is for Spits up to 1964 with the HS2
carb. I can forward the PDF to you if you like, it has some handy tuning
and re-building tips.
Bill B
'58 TR-3A TS/30766 L
'59 TR-3A TS/64974 LO
"A Triumph is man's best friend, it always comes when it is called...of
course, some times it is difficult to make it go"
-----Original Message-----
From: triumphs-bounces+wbeech=flash.net@autox.team.net
[mailto:triumphs-bounces+wbeech=flash.net@autox.team.net] On Behalf Of
maya2blue@juno.com
Sent: Sunday, June 08, 2008 8:41 PM
To: nass@yahoogroups.com; NASS-club@yahoogroups.com;
spitfires@autox.team.net; spitfire-enthusiast@yahoogroups.com;
triumphs@autox.team.net
Subject: [TR] HS2's /needles/springs
I have a US 1500 1978 Triumph Spitfire with HS2's (tagged AUC9831 & AUC9831R
- handmarked on the top AUD9253 & AUD9256) I use K&N filters and a 4-2-1
exhaust manifold. I am using AN needles. I have no idea what springs are in
place.
My questions:
1) Is the AN needle okay for street use?
2) What springs do I need, and how do I tell what I have?
tks. harve
Harve Thorn (NASS #79)
531 Amen Corner ('78 1500 Spitfire)
Fayetteville, AR (looking for a "nice" GT6)
72701 USA
479.443.0818 evenings or lv msg
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