[TR] How easy is it to get a Spitfire through a CA smog? Follow up questions

[Paul Tegler]

the twin SUs and 4-2-1 Eurospec exhaust will definitely be a noticable 
improvement.

Late 70's spits were de-tuned (smog regs) in the US and choked down with 
the single ZS carb , somewhere around 58 hp.
Just the carbs and exhaust change puts you back to near 75HP..... and 
before the cam change!

ptegler

On 10/24/2020 6:34 AM, Jeff Scarbrough wrote:
> > The 1500 engine is positively athsmatic and has always had breathing 
> issues in standard spec. No doubt there will be howls of protest in 
> favour of the 1500
>
> Well, I'm about to find out.  My short block has been cleaned up and 
> balanced, a lightened flywheel and slightly hotter cam has been 
> purchased, and my head is at a 1500 specialist having its breathing 
> attended to.  Add a pair of HS4s and the UK exhaust manifold, and it 
> ought to be better than the original US spec, anyway.  I will 
> certainly have spent enough cubic dollars to go at least a little faster..
>
> Jeff Scarbrough
> Corrosion Acres, Ga.
>
>
>
> On Fri, Oct 23, 2020 at 1:51 PM John Macartney 
> <John.Macartney at ukpips.org.uk <mailto:John.Macartney at ukpips.org.uk>> 
> wrote:
>
>     Air pollution regs kicked in for 1968 build. Albeit very limited,
>     the SU carb proved a bit difficult to lean out and that’s why
>     Spitfires from either 1969 or 1970 model year used a single
>     Stromberg. My personal opinion is the Mk3 Spitfire with the 1296 8
>     port head is the Best Buy, hotly followed by the 1296 Mk4. The
>     1500 engine is positively athsmatic and has always had breathing
>     issues in standard spec. No doubt there will be howls of protest
>     in favour of the 1500 but the many I’ve driven over years -
>     rebuilt/cared for/completely knackered - were all the same, I.e.
>     seriously disappointing and that same engine in the Midget made
>     that great little car something that is best forgotten.
>
>     Jonmac
>
>     Bessie Braddock: “Winston! You’re drunk”.
>     Churchill: “and you, Madam, are ugly. But tomorrow, I shall be
>     sober but you will still be ugly”.
>
>     On 23 Oct 2020, at 17:28, Sujit Roy <triumphstag at gmail.com
>     <mailto:triumphstag at gmail.com>> wrote:
>
>>     Thanks for the answers. Here are a few follow up questions.
>>     If the Smog parts were completely removed from the car and it
>>     needs it, what is the  worst case cost wise to buy this stuff to
>>     get it though a Smog? What workshop equipment would I need to buy
>>     and cost to make sure I can get it close to passing a smog
>>     without having a repair shop tweek it to pass a smog check? Also,
>>     are '74 year and earlier cars exempt from a smog but  '75 on are not?
>>
>>     Regards, Sujit
>>
>>     -- 
>>     Sujit Roy
>>     Cupertino, California
>>
>>     https://triumphstagblog.wordpress.com/
>>
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-- 
Paul Tegler
ptegler at verizon.net  www.teglerizer.com

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