I like data! I need data! I LOVE data! I live and dream data. I feel empty, without purpose and am feeling hungry! In all seriousness, I want to log as a minimum: AFR MAP RPM So a 4 channel analogue jobbie would be ideal. But I don't want to spend the £400+ on the well known brands. I want to hook up my AEM AFR gauge with it's 5v output, use MAP and RPM sensors that do pretty much the same but yet TBD. Is anyone using anything that costs around the £100-200 mark? Google tells me about Loguino but I don't want to do a lot of coding to get it working. Then there are some other more techie ones that need some work. But I want a pretty much plug and record + download to .CSV file. I don't care about real-time analysis or fancy software - I eat Excel for breakfast and lunch and prefer raw data. In case you are wondering I have PPT for supper and snacks (frankly built a career on PPT). I have in the past used my iPhone strapped to the passenger seat pointing at the iPad running the 123 Ignition app and my AFR gauge - very poor man's data logger. So, any thoughts? What are people using? Any cheap options? Let me pre-empt some responses (joke flag flying high, please don't take offence): @Rob Gaskin - What do you want that for? You need to drive your car more and tinker less. @jonbills - Just get a speeduino and EFi and stop dicking about with the obsolete technology of carbs. @franky - Just buy some DCOEs or a Kameari <insert any product here> @status - The only data you need are your tyre pressures and level of beer in your pint glass. @Albrecht - Naoto-san in Fujisawa had an elegant solution now lost among the weeds of time. @Woody928 - Not having kids I'd just buy the most expensive option possible. @johnymd - I have data loggers on all 17 of my S30s.