If you had read the last instalment of my quest for more power, responsiveness, you will have seen that we fitted (well I say we, but really he
) a fuel pressure regulator and 255 Walbro Fuel Pump back in January and were ready to map it when the laptop and car decided to play old married couples and stop talking to each other.This left me in the position of having plenty of fuel pressure that was basically forcing the car to run rich rather than adjusting the ecu to shorten the duty cycles. Therefore at the end of that session we wound the fuel pressure back to normal and vowed to do it another day.
Today was that other day and just in time for the Track Day at Snetterton
I havent had a chance to do a dyno comparison on today's set-up but I can FEEL it is much better. (and sounds nicer too)
The extra fuel pressure has had the required effect and given a little more room to exploit the engine by upping the boost to almost 1.5 bar tapering down to 1.2 (or was it 1.1) at the redline (not that I ever go up quite that far) - about .2 bar up on what it was making before. This along with oodles of extra Cam Timing and ignition advance has been put in without the hint of Det or problems... well apart from blowing off the intercooler hose once
(i had tightened it up in my non mechanic way)The net result of all this is that the car is transformed AGAIN - i didnt think it would be possible after the night and day transformation before, but Zak has sprinkled his magic dust again on it and it feels a different car.
I have to say I am grateful to Zak's hard work today first doing an Oil Change (with a lot less mess than I did with the last one) and then patiently working on the map until it was perfect.
There were several points during the day where lesser mappers would have called it a day as being Good Enough and to be honest I would have gone away happy, but he was having fun working on it and it is always a shame to stop someone having fun making my car do what I want it to do where I want it to do it
I will be doing a road dyno run tomorrow on my normal road to compare with previous figures/curves and will post that up as a comparison.
I have learned a lot today as he explained all 14 iterations of the map to me as to why each change in each map was done and what impact it would have on the overall feel and performance.
Thanks Zak/Mocom Racing (http://www.mocomracing.com) :thumb:
