Which Sigma do I have?

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garybee
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An easy way to tell if you have fixed or variable cam is to look at the inlet.  Notice on yours the dipstick is between runners 2 and 3.  On the fixed cam engines it's between 1 and 2,

krisfl
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Great thanks @K7 VCT. 
 

Clear on the fact it's a 135BHP Ti-VCT. And that makes sense with it being described as a 270. The bits that don't quite add up are the roadsport badges on the bonnet and the dealer saying it's got 140Bhp. Perhaps a mild upgrade?!

or a swap from an older fixed cam lump to the later unit?? Or a typo! 
 

I wasn't quite with you on your point re checking with the dealer if it's been upgraded. Did you mean to 310 spec? I.e the 152Bhp via cams and map? This would usually come with the cam cover plate sticker, as you say... 

Thanks again! 

 

pugwash
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If it helps, this is a 2012 sigma 140 for comparison.

pugwash
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krisfl
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Thanks @garybee. Another top tip! Clap
 

krisfl
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It does thank you. Completely different cam/rocker cover for a start. And the dip stick point noted above... 

Nice clean engine!! 

K7 VCT
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Sorry, didn't realise it was with GP when I wrote about checking with dealer. The 310 upgrade is cams, spark plugs,ecu remap and k & n performance air filter. Looking at your car, strange that the catalyst heat shield is not black as that's part of the black pack. Also it would have had apollo alloys on it. You can ask caterham for the date it was sold as a kit or full build from its chassis number if the history with it doesn't tell you. Black decals look great on the ballistic orange, I'm biased as that's my colour scheme. Looks like it needs to be used. Sure you will love it

Orange is my new black

Ballistic orange 310s
krisfl
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Yes good chaps, great service so far from them. Buying in these times is less than straightforward, but they're earning top marks. 
 

I'll certainly go for the flywheel and 310 kit in due course. I'll drive it as is for a while first though. Learn the car etc. 
 

yes she needs some use! Can't wait. Funny you should mention stripes. They're sorting me a full set.
 

thanks for the tips!  

SM25T
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JK photo edit turned it into an SV XL
heptagon
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Hi Kris, nice looking car, I saw it there just after they'd sold it to you I think.  Needs a couple of nice black stripes on the bonnet Thumb Up