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REPLY to #4: Thats right. LED bulbs can be fitted to a light, not originally designed for them on any car older than 1986. "The MOT rules have been clarified from 22.3.21 to allow the use of LED conversions that pass the beam pattern tests for headlights for Class 3, 4, 5 and 7 vehicles (car, private bus and light commercial vehicle) first used before 1 April 1986 and all class1 and 2 motorcycles of any age." At that age (1969 Lotus 7) you're MOT exempt anyway. I used properly clocked and shaded LED bulbs in my '73 BGT. Its MOT Exempt, but I have the car "inspected" to keep it safe and compliant every 12 months anyway... If its younger, you have to stick to standard bulbs in the original units, or upgrade to suitable sealed LED units, E-marks etc and correctly adjusted to comply... More HERE

I'm in!

I'm in!

Was thinking the same!

The Just Add Lightness "how to' Video may be useful reference if you've not found it... Its talking about their brake light, but talks about cable runs, and the location of the sub loom. To your original question, You should have the Subloom already fitted as others have suggested on the right hand side between the tank and the skin tied/taped somewhere. My 2016 car did...

Certainly very different experience to mine. My car did have a full flat floor set up/ corner weighting etc at a similar time. Seven's are very sensitive to set up as we all know... Perhaps as you say, set up is the difference?

Hi @Aerial_stu. I have a Premier Power modded 2016 270 which uses the standard AP calipers front and rear on the standard discs. On road and my track days last year I ran standard caterham rears ( AP I think?) with Mintex 1144's on the front. These were recommended to me by a seven specialist to cure my squealing issues - which they did. They gave noticeably better bite and power vs the standard pads. In terms of track use, I was at Castle Coombe with the club on the hottest day of the year last summer - 41'c Air temp and lord knows what track surface temp! I lapped all day in 20min stints without problems. No fade. SO I"d say for your 310 well worth a look. I would add I'm a bit of a track novice, so perhaps I wasn't lapping as hard/fast as more skilled people might... But that said I'd buy them again... And compared to the pads for the big brembo's on my old car they're cheap as chips! Hope that helps.

I went from a stock Ford flywheel on my Sigma to the Premier Power Ultralight flywheel and clutch. It offers no power or torque at the wheels, but a vastly improved response by removing about 6-7kg of rotating mass. The car now revs like a motorbike and "feels" liberated - like it has another 25bhp. The reality it just has less weight to spin up and slow down. Rev matching + heel and toe on the way down is now a delight, and ripping up through the gears the car is transformed. In terms of driving in traffic, it required me to relearn my car over the first 150miles or so. But after that I was slouching through traffic as before. The bite is much more aggressive, and the pedal action is now a bit heavier (due to the new clutch and master cylinder etc as part of the upgrade) and with the revs rising and falling so much quicker, it was initially easier to stall. Engine braking is also much increased, which i like a lot on flowing roads as I find the cars road speed can be adjusted much more smoothly. But as I say, after 150 miles or so, I was as smooth as the day I passed my IAM exam ;-) Personally I'd never go back. And I'd recommend Premier Power to anyone, they're awesome. But I'd say light flywheels won't be to everyone's taste. And of course a heavier lightened flywheel, like the CC one (if that makes sense) would dampen some of the effects I describe above, keeping the original clutch and feel, and so may be better for some people/tastes. Bottom line, in my view, the sigma is held back by an unnecessarily heavy flywheel. I'd say most people would prefer the character of at least a mildly lighter flywheel, hence the Super Sport 140 upgrade was so popular on the older fixed cam sigma... The ONLY downside is my local MOT station can no longer pop it onto their ramps in their massive safety boots. I now have to do it for them

I don't know too much about the CSR 200 and how it feels stock. Or how heavy your flywheel and clutch are! But I also had Sir Stuart Cresswell of Premier Power convert my car including a ultra-weight flywheel and clutch (F160 in my case) and can't recommend it enough. Its transformed the character of the car, removing about 7KG of rotating mass - which had a magical effect on response. It doesn't' effect power of course, but it feels like it does! My power gains came from his other magical tricks (cams, springs, injectors, new map etc) With 217 Bhp your car is already pretty powerful vs mine. But I'd highly recommend a call to Preimer Power. Stuart won't give you a hard sell, but he will give you an honest opinion on the matter and if its right for what you like to do with your car, and how you like to drive. If you're near Lemington Spa, drop in and have a face to face chat. A great little workshop and a fabulous team...

What winter tyres are you going for @ptr_drvr? I run them on my boring cars... but not yet on the Seven.

BUMP! Interested in this too... I was also looking at Lanoguard... for the Seven and another old car...

Presumably your lenses are E-marked though? I"ve done the same. JAL inners, e-marked lenses. JAL rear fog and High level brake lights too. MUCH more visible. Much safer. Especially in rubbish weather...

Just seen I'm repeating Blue7 - there must be an echo

Just get a set of JAL LED boards and keep your clear lenses if you like the look. MASSIVE difference and easy fit. https://justaddlightness.co.uk/product/caterham-7-rear-light-cluster-led-upgrade-kit/ And then add a high level light as GulfSeven suggests.... all about being seen...

Totally agree with #2. I've been looking at EVs recently. Want to go green. Tried a few. (Tesla, BMW, Hyundai, Kia, Ford, MG) Enjoyed the instant torque on the first test. Then that was that. They've all given me nothing. Automotive equivalent of a fridge - just buy on size and price. Also, its surprising how dirty they are to produce (in CO2 terms) and how many miles I'll have to do to break even on CO2 vs burning dino juice! (see here if anyone wants to see Volvo's numbers) Even my home solar won't take much of the edge of it. Trying to be green day to day so we feel less guilty about sipping a bit of 99Ron in the Seven - but its not easy!

I wouldn't worry about your hot air point. Many, many caterham's standard and modified Ks, sigmas and Duratec run without that air box and seal configuration and make very good reliable power in the process... cold air is of course better, but that standard vent and air box isn't very effective... many just ditch it and run a cone filter...

In croydon, you're give or take 19miles (40mins ish?) from GP Sevens. I use them for servicing and also bought there. They'll do jobs while you wait and have Wifi and a decent enough sofa. I drive an hour to get there... They also pick your car up in a covered trailer too if you've not time to do battle with the roads south. All ex caterham people, and their tech's are good lads.

Thanks @mph, will look into Bootcamping... I see Assetto Corsa and also be used online/streamed? Perhaps a PS3/4 is in order, though I think you can't download all the track mods (so all the extra UK circuits)?

Aaah Misha, yes I've been following him since his 'boosted borris' days. As well as Apex and Robert, Tim Morely et al. I had a trip booked before Covid to Apex but it never happened. But would love to go with a gang of Seven's. I've really enjoyed my club track day this year... So completely agree with you @ptr_drvr, TF probably doesn't deserve its rep. Still... A SIM sounds like a good shout. What SIMs would people recommend? I don't have a PC or console but I do have a powerful iMAC

Always wanted to vist too. TF scares the hell out of me as I don't have too much track experience, especially in my 7. But love the idea of this, especially the road trip too. But not sure my track skills are up to sight driving the ring without instruction and GT3s coming at me from behind!

Hi @Shaun_E and all. Here is mine working. The DRL changes to Orange. I still have my standard flashers up front and on the cycle wings... but gives you an idea My lights look identical to the Wisamic ones in this thread, but include the indicator function (which you don't have to wire up) and were bought via Andy Hobbs on the Club FB pages. Very good upgrade all round.

Looking now! I did scan through but didn't see!

Looking for a set of 8" rears and 6" fronts please. Any colour. I'm Guildford, Surrey. Happy to travel a bit.

Hi Beagler. This thread might be worth a read for you. Some pics, member how too's and links to parts... /forum/techtalk/installing-usbcigarette-lighter-charge-socket

Convex it is then, thanks... Now, carbon (£££) or gloss black (££) ??