Ian Mackenzie

Thanks for the replys so far. I got the ignition map from an Emerald Mapped K-series that was a similar spec. As Oliver says this is a hard one to map by yourself (At least that is my experience as well!). I've also monitored the spark pugs to check on the mixture and any signs of detonation and it all looks good so far. Though I know it may not be optimal. I've been using the self mapping on the Megasqurt to tune my fuel map as well as doing data logs for some fine tuning. Though I suspect that I'm now approaching the state of tune that Tom experienced prior to the rolling road session. Cheers Ian P.S. Here is link to the engine:

Hi there I've got the same system, but I changed to the old system for the MOT with the CAT. I went to my MOT station and we looked at any potential loop-holes, here is a copy of the manual which gives very little flexibility: http://www.dft.gov.uk/vosa/repository/Emissions%2017th%20Edition.pdf you'll see the emissions by Caterham chassis / engine numbers. At one point I'll fit the CAT exhaust to the race manifold. I'll need to weld a reducer and a link pipe in and it should work. Regards Ian

Also don't use the handbrake until you've bled the system and pumbed the brakes out or this can effect the handbreak efficiency. Cheers Ian

Hi there I'm looking for advice please......over the winter I've been updating my engine with new cams, throttle bodies etc. Here is the specification below: 1600 K series -Forged pistons -Up rated big end bolts -QED 375HK cams running on verniers (Cam timing from Oily 😶‍🌫️setting Inlet 0.080", Exhaust 0.070", I later got the QED data sheet with 0.112 for both inlet and exhaust, but for now I've gone with Oily, thank you!!) -VHPD Throttle Bodies (Swan neck and KV6 throttle bodies) -Caterham 4-1 race exhaust (Collector external to the side skin) -Head - ported to match Inlet manifold and similar porting on the Exhaust to open the ports to 36mm from 24mm (Quick and dirty method with head still on the engine so nothing fancy) ECU / Ignition - Megasquirt II running with grouped/batched injection using EU3 coilpacks (I like building as much as driving and i wanted to learn more about fuel injection) - LC-1 Wideband - added extras include a shift light, launch control and flatshift (All just for fun and again the extra challenge!) Current AFR and ignition maps can be accessed here: http://www.locostbuilders.co.uk/photos.php?action=showphoto&photo=MS%20-%20AFR%20Table.JPG http://www.locostbuilders.co.uk/photos.php?action=showphoto&photo=MS%20-%20Ignition%20Table.JPG The maps have been based around what I've found on the internet so far. The ignition map is based on one I got from tripleracing.co.uk (Thank you) and the AFR map is a blend of research from the Megasquirt Forum and a map from an Elise..... I appreciate that the rolling road is the real solution here, but I'm keen to get the closest maps as possible prior to getting the car on a rolling road in the future. If you have any advice regarding my maps etc. or have a K-series on throttle bodies / fast road cams and programmable ECU it would be really interesting to learn from your maps? Any advice / comments gratefully received and thank you in advance. Best regards Ian

"Have you considered using the water temp gauge to do both via switch on the dash. That's what I have. " I've got the same set up so that I can switch from oil to water. Oil sender is in my apollo tank. Cheers Ian