Wow I haven't put an update since September, time flies when you're driving a Cobra!
The car ran at Nationals in October pretty much without issue, come to find out later that the ECU torque management was kicking in and was severly lacking power. That has been fixed and she flies now. Sadly the timing retardation from the torque management meant extremly high temp exhaust gases and the ceramic coating on the headers is knackered - will have to get that re-done. The car is on club reg, will look to have it engineered and full reg this year.
Ran a 1m:11s at Wakefield which I was chuffed with. The alignment needs a little work for further improvements and I need to harden up the Penskes a bit, I left them in the tuning shop delivered position of 20 out of 40 clicks, will turn them up a bit for Winton and see how it goes. The car squats at the rear nicely when booting it but I think it might actually be a bit too much squat. The braking power is unbelievable, combined with the sticky KU36 I am amazed at how hard this thing can stop.
I didn't do anything to the car over Christmas due to a bunch of reasons. It has done 2,000kms now. I had constant erratic speedo issues which I had fixed late last year by grounding the body of the ECU to the engine block and the speedo had been fine ever since. Last weekend on the club run down the Bellarine (see
here for pics and report) without explanation it suddenly started behaving erratically again.
Just before the run last weekend I finally put the boot on the shifter;
I spent a few nights this past week going over the car with a multimeter and checking resistance on all the earth points, couldn't really find anything wrong. The fuel gauge has also been less than ideally stable so I knew it was some sort of ground issue. I was positive that I had 2x6mm earth cables off the main fuse block but checking again I only had the one going back to the battery, so ran a second one from fuse block to engine block and went for a drive, speedo is stable again and I think the fuel gauge may be a bit more stable also. Before anyone asks yes there are three LARGE earth cables between engine/trans/battery/chassis, this issue was the earth from fuse block to battery/chassis.
Anyway, that little drive down Beach Rd this morning resulted in two firsts. First of all I had to use my wipers because there was a bit of a shower, shock horror! Glad they worked. Secondly, stopped for a coffee, then leaned in to the car to place the coffee on the trans tunnel and got SNAKEBITE from the hot pipes, aarggh! Not bad enough to leave a mark even but it still hurt, thank you ceramic coating for saving my leg
Next up, I have started making cardboard templates for aluminium door cards which will hold two more speakers and a door pocket. A roof and tonneau is on the cards in the next few months pending finances. I'm booked for the 5 day club run to Tasmania in November so these are a must!
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