Kal-El

Does anyone have a round green and yellow Caterham 7 16 Valve badge they'd be willing to part with? Thanks p

Hi, I'm after the Titan dry sump pan, gold pump, swirl tower and the CC bell tank if you have any of those parts surplus to requirements. Many thanks

I spoke to Powervamp the other day as I also need one and they recommended the Odyssey PC680 which is the same as the powervamp branded PVR25. The CS22 battery is Chinese made and they advised against it. The others are made in the US. £99 for an Odyssey with a bracket off eBay. P

Yes, EU3 ECU side is precisely what I need. I've sent you a PM. Many thanks P

I've found a 2003 1.8 MGTF ECU on eBay. Is this likely to be EU3? P

Does anyone know where I can get an EU3 ECU plug? Thanks P

I've seen a few race cars that have a plate fitted behind the steering wheel which adds easy access to buttons for indicators, horn, flash etc. Demon Tweeks have one by Summit Technologies that works wirelessly but this is too large. Does anyone have a solution? I think it would be pretty neat. Piers

What did he say the benefits were over the CR500?

Good news! Both the ZZR and ZZS tyres will be available in a 195 50 15 from May 2015 and will fit the 15" caterham wheels without issue. Avon have tested this with Caterham. (Despite a small increase in diameter). Avon will also be producing the CR500 tyre for a while yet. I spoke with James at Avon today. p.

Do the new 195 50 15 ZZS tyres fit without any clearance issues on the 15" rims? P

I am after a stainless 4-2-1 manifold for an 1800 K-Series, either 2.25 or 2.5". SLR, EBD, PowerSpeed etc.. thanks

I see that the R400 and R500 come with the Watt's Linkage as standard, and wondered what the benefits are, how does it affect the handling and road manners of the car, and is it worth retro fitting? If anyone can also give me a basic understandig of how it works too that would be great. Thanks, P

Go to The Polishing Shop and order the Aluminium polishing kit. It includes a number of menzerna abrasives and compounds that will have them looking like a mirror in no time! You can use the mops on your drill. Cheap too. P

You could try some Menzerna GZ13P Tripoli compound , followed by Menzerna Glossworks 16 polish. You'll also need a couple of mops for your drill. Its designed for use on plastics to remove scratches. Google 'The Polishing Shop'. P.

My apologies if you thought my response to be rude, it certainly wasn't my intention. I was just trying to make my question clear. I was simply asking how the algorithm within the ECU functions, which was the reason behind my "contrived" scenario. Your response however does answer my question, but also highlights the flaw in alpha-n mapping at low Rev and throttle openings due to the large change in air flow against a tiny change in the throttle pot. How we can map around this using throttle enrichment transients and closely packed load sites is an interesting one. This is why I questioned using a 'hybrid' strategy which uses the MAP signal below a set threshold and the TPS above it. Since the map signal responds with high resolution at low throttle openings it's advantageous to use it and since map signal has low resolution above 90kpa it is advantageous to then switch to TPS. In your previous post you mentioned that this caused problems on the VHPD engine, and I am keen to understand why that's all. You mentioned about how the engine actually runs on alpha-n, and my own limited experience has seen that on a car with throttle bodies, and cams is that there is a lean off at tip in which means the engine stalls. This means that I have to then drive around the problem. I suspect many people on the forum may have a similar issue, and I thought a sensible debate about alternative solutions would be healthy.

I was asking about the way the algorithms inside the ecu firmware functions rather than the resultant dynamic of actually running an engine. Assume for this question a braked rolling road holding steady state rpm so we can change throttle angle without rpm changing. I am really interested to fully understand how this works.

Ok I think I understand, so if I had 10 fuel at idle, 0% throttle, and that had a perfect afr, and I had 20 fuel at 2% throttle with perfect afr (let's say on the 1000rpm column) the ecu would interpolate 1% throttle to be a fuel value of 15? Assuming my throttle spacing was 0,2,4... At the bottom?

Oilyhands, so interpolation is filling in the gaps? If we are half way between two throttle sites will the interpolation make the fuel half way between?

Are Pagid RS15 with standard front calipers going to be suitable for a car used predominently on the road? Looking at the Pagid site they seem to offer the best of both worlds. More bite and stopping power when cold and a phenominal operating range. Is this the reality Thoughts?

Bump

82mm Forged Omega or Accralite pistons for use in a K-Series engine. Must be in very good condition. Thanks

So my recent foray in Caterham ownership has come to an abrupt pause whilst my car is off the road due to what we suspect to be a serious bottom end failure. Since I was planning some upgrades anyway (VVC head, cams, TB's)I thought this might be a good opportunity to address the bottom end strength. I figured if I am to replace the pistons and liners, why not consider a 1900cc upgrade. Roger at Sabre Heads is near to completing his own 1900 engine and I am very tempted. However a number of tuners / users have commented that the 1900 engines suffer from reliability issues. (Not sure what these are). Just wanted some more opinions on whether I should go the 1900 route, or stick with the tried and tested forged omega piston in the std liners, replace the bearings (lead copper?) and leave it at that. Your thoughts would be much appreciated.

Ok so the GM/Sagem twin coil from QED sounds like it will work, however where can I find the corresponding 4 pin connector to hook it up to the ECU?

So is it possible for me to have the older style cam cover, but still have coil on plug? I assumed they wouldn't fit. What I am trying to achieve is the new VVC head, older style cam cover but still maintain wasted spark type ignition. Perhaps this setup from QED would be best? So confused.com

Will I be able to mount this on my block or will it need to be modified? Also, and lastly (I think) where can I get the connectors that attach to the coils? Any ideas? Thanks again P