Hi All,
Hoping you can help me out with my tuner.
I have a L76 in a AC Cobra, was running a stock tune in a stock engine up until late last year. Put in a small cam (See attached) and contacted my tuner for an updated tune.
Taking the car for a run with the stock tune the car "felt" vey strong - obvious lift in torque in the mid range with the new cam and apart from running rich at idle ran well. Was advised I would need an updated tune as it would be lean under load so opted for a mail order upgrade.
The car ran horribly after the mail order tune. So bad I convinced myself after lots of research I had installed the cam one tooth off. Pulled it all apart and degreed the cam - was within 1 deg of spec. Car was hard to start at times, breaking up in the mid rpm range and headers really hot - obviously the timing was way off.
Tuner advised I would need to then upgrade to a remote tune to try and sort my issues and sent me the autocal with a fresh tune. The new tune fixed the obvious signs of poor running. Took a few back and forths with log files and tunes to get things like the fans running right and speedo signal in the ECU (stuff I thought should have been bread and butter for a decent tuner) - I was having to do the research and tell him what to change.
Car has been off the road for a while with some other upgrades and Im back into it now trying to get the tune sorted. I dont think Im getting the most out of the new cam. Its not huge so didnt expect too much but 1/4 times are no better than with the stock cam. Car does not feel as good as it did when I first swapped int he new cam and ran the stock tune. Other small issues with drivability as well (too fast idle when cold, throttle "holding" at low speed as approaching intersection etc). The engine bay also feels hotter than it used to so I suspect maybe the timing is still a bit off.
Any advice you could give me on what to tell the "tuner" would be great. He is well known and well mostly well respected so I thought getting this tune right would be a no brainer.
Cheers,
E38_0013 (1).eficam_spec (2).pdf