Ok so it's time for an update.
Last weekend kermit was loaded up on to the back of my mates flatbed and taken up to EFI Parts in Runcorn. It was time for Scoff to work his mapping magic and get to the bottom of the intermittent starting dramas.
Mapping was originally booked for the following Saturday.............well the cup had other thoughts on that.
Initially Scoff was struggling to get it to run and a few emails were exchanged between us as he thought there was an issue within the loom itself. Things weren't looking good! My patience with the cup was at an all time low. Thursday evening arrived, and so did an email from Scoff.
He'd managed to find the cause of the issue! The throttle body wasn't working correctly - happily buzzing away and the pitch was changing when the pedal was pressed. Was the flap moving? Was it f**k!! Scoff changed a few things in the gen90 so that it would read from track 2 in the fbw tb. Unfortunately it was just too late for us to be in with a chance of mapping on Saturday, so Scoff suggested that the dyno time be better spent running it in, dialling in the vvc (more on this shortly) and generally getting a good base calibration done on the engine.
So a bit about the vvc. For those of you that don't know, the 197 runs a fully variable inlet cam. This is something that hasn't been seen or done in a 172. This is where Sean @ ktec came to the rescue. He sent Scoff an aspect file for the gen90 for the vvc to be activated within the ecu and allow him to dial it in to suit the engines requirements. I have nothing but positive words to say about Sean - the guys a legend and has ALWAYS been on hand to answer any queries/questions I've had regarding the gen90. Thanks Sean your help has been invaluable!
Saturday afternoon arrived as did another email from Scoff with another update - a new date for mapping was set. I set off on Sunday afternoon up to Scoffs to drop the oil so it could be given a good hiding on a drop of the good stuff. Time to put it in the rollers and strap it down.
With it being a vvc engine you have to start at the very top of the rpm range and find the optimum position for the cam advance, so basically, it got the s**t knocked out of it pretty much from the get go. I only found this out when Scoff told me how it was going to happen! Lol!
That's where I'm going to leave it for now.
More to come.