Bokonon

Thanks all, and thanks ChrisC for the offer. Was away yesterday... Will take it to a local place that services Caterhams and see what they say. Need to find a decent place for servicing anyway.

Thanks for the replies so far. Would there be an effect on fuel economy with a dodgy sensor? Appears to be doing about 15mpg currently which can't be right, even with some spirited driving.... Oh, and it does have a cat bypass pipe as well. As I say, it was running perfectly up until Friday though and suddenly started playing up. Was away for the weekend and returning today had to sit in some very heavy stop-start traffic. Pulled over eventually as was having to ride the clutch just to keep it running. Edited by - Bokonon on 24 Aug 2014 21:53:23 Edited by - Bokonon on 24 Aug 2014 21:53:51

Sorry yes, just edited it :)

I've had my car for a couple of weeks now and it's been running beautifully until now. It's a 2010 1.6 140bhp Sigma. Was on a long run and noticed it starting to run very unevenly at lower revs. It got worse and worse until it was struggling not to stall at idle with the revs repeatedly rising to 1k, dropping to virtually nothing and then back up again. When driving it was fine above around 3k revs but increasingly badly behaved below that, and was jerky and rough-sounding. At one point I stopped for a few minutes and it was fine again when started for a few minutes, then started to regress again. I have zero mechanical knowledge - is there anything this could obviously be? Edited by - Bokonon on 24 Aug 2014 14:58:07 Edited by - Bokonon on 24 Aug 2014 14:59:39

I'll get my drill :)

Thanks for all the replies. For reference, my car was originally a 2010 Academy car, now re-configured for road use (leather seats, heater etc) with the standard rollbar, and with the 140bhp Supersport upgrade. I'm not particularly looking for more volume either, it's loud enough really. I did see Grant_7's video while I was researching my purchase though and that made me think I needed more pops :) Mine does a little on the overrun sometimes, but nothing like that one.

Hi, I've just/finally bought a 7 after many, many years of promising myself one. And naturally, it's ace. A couple of things I'd consider changing though are the rollbar and silencer, albeit in different directions. It currently has the standard rollbar and the trackday exhaust, but I'd like an FIA rollbar for trackdays and, possibly, a peashooter at some point for the road. What I can't seem to find after trawling this site and Google is where one would buy either of these things. Who makes the rollbars? Also, is it straightforward to switch out the trackday and peashooter silencers? I only want the peashooter for childish pops and crackles, and I'd only bother if was easy to switch, and cheap :) Thanks.