I had the car in the workshop yesterday, and did a few small tasks.
First up was to replace the rear brake pads - not because they needed it (1200km only), but because they weren't doing much. The compound in there was too hard, so gone with a Mintex racing pad to try and get them to contribute more to the braking effort. Might help with the locking of the fronts if the rear is helping to slow the car more.
I also found a few more loose things to tighten, which to those who know me will come as no surprise. The clunk from the rear (which I thought might be the rear sway bar) turned out to (probably) be the rear sway bar, as I hadn't done up a locknut. Wouldn't have caused a serious problem, but nice to have it squared away. Also retorqued some of the diff mounts, checked over the suspension bolts, and noticed an oil leak from the diff.....
It seems that the half-shafts aren't sealing into the diff, so there some small weeping going on from where the shafts enter the diff. I've cleaned it up, and as soon as the car is down again I may look at topping the diff up.
The gearbox is also weeping oil again, probably from the top plate. I'll keep it topped up as well, then when the engine is out next I'll have to redo the seal on that. Just another step in the process of improving the car incrementally....
The wheels are off to the tyre guy today to have their new rubber fitted, so I'll have the car back on the road this Saturday. I'll be heading up to Barbagallo to see everyone else tear around the track, but I've missed out this time.
The Birkin
The finished article
Thursday, December 11, 2008
Another Green Birkin in Perth
Yup, another Birkin is on its way over from the east (something of a pattern lately), and this one is Damien Glass' car, which is where I got the idea for hothouse green.As you can see, this one comes with the full wet-weather gear, certainly a first for the Perth market. I think it actually looks pretty good with the roof on. I'm also interested in seeing the doors, as I reckon a pair would be useful for running around the streets and freeways - might help preserve the ears from the wind a bit more.
The number of Birkin's in Perth is swelling by the month - we've had quite a few come from over east recently, and five under construction at the moment with a couple of those heading for rego either this year or early next. The Birkin grid is certainly filling up.
Perhaps a round-up of Perth Birkins is in order - would make a really good photo ;-)
Tuesday, December 9, 2008
Superkhana Results
The results for the weekend's run are in. I cam 14th out of 50, with that little spin knocking me out of the top 10 once more, dammit.
Lap times were:
Round 1 44.78
Round 2 56.31
Round 3 44.85
Round 4 44.4
Total 190.34
So ignoring the spin, times were getting better, and I still reckon there's a few tenths to be had just in my basic driving, let alone mechanical stuff like tyres and suspension. Lots to aim for next year.
Results etc can be found here:
http://www.classicrally.com.au/Speed%20Dome%20Day.htm
Next year's calendar is out as well, with 6 superkhana's planned, plus perhaps a fwe one-day specials as well. Should be fun ;-)
Lap times were:
Round 1 44.78
Round 2 56.31
Round 3 44.85
Round 4 44.4
Total 190.34
So ignoring the spin, times were getting better, and I still reckon there's a few tenths to be had just in my basic driving, let alone mechanical stuff like tyres and suspension. Lots to aim for next year.
Results etc can be found here:
http://www.classicrally.com.au/Speed%20Dome%20Day.htm
Next year's calendar is out as well, with 6 superkhana's planned, plus perhaps a fwe one-day specials as well. Should be fun ;-)
Monday, December 8, 2008
Vale Tyres
I think I need new tyres. At least, that's my latest excuse.
Anyway, this weekend was the Last Blast Superkhana, again organised by AEM and run at the Midland Speed Dome in the carpark. The circuit was the same as one of the rounds in the one-day challenge, so we could get some comparison times.
The circuit itself is pretty good - for me, it's mostly first gear still. There are only a few tricky points with this one, including a sharp left right which, as you'll see in the first video, caught me out.
So, Round 1 went fine, usual sort of testing run to make sure everything is OK. The surface was reported to be quite slippery, which it was. I think the pines were shedding a lot of needles, and these were creating a lot of dust which needed to be swept off by the front runners. Unfortunately, once more the video decided not to play ball and start, so Round 1 was missed for the cameras.
Round 2 was a different story - I got the camera working early, and I've managed to capture a small mishap for posterity, which I shall share with y'all. Coming into the left / right turn, I've somehow managed to completely understeer off the road - whether this was old and cold tyres, a bit of sand on the road where others had cut the corner, or just the car not being setup right, I somehow manage to understeer off at around 20kph, then lose it when I hit the grass. Cost around 12 seconds all up. No damage (which is one of the nice things with this circuit), just a bit annoying.
To be honest the car was pushing wide all day - you'll note from the first long left-hander I'm having trouble putting power down without the car pushing wide. As Gary and Frank pointed out afterwards, I should have backed off at that point, straightened up, then put my foot down, as going wide here cost a few tenths. The understeer at the bottom corner (sharp right-hander) occured under brakes this time - my fault. I know better than to do that now.
Round 3 was again a problem for the camera, but it was a neat run with no excitement. I think I ran around a 44.7 or thereabouts.
Round 4 was captured, which was good as it was my best run for the day. Still taking the sweeping left-hander wide, but I took the left/right a lot better this time.
I note that I'm still treating the corner with the tree with too much respect, but with the car understeering like it is, perhaps that's wise at this stage.
Ultimately, I think I do need new tyres. The ones on at the moment are three years old now, which is ancient for a soft compound. Looking at the surface of the tyre, they're shredding quite badly, even if there's some tread left. As luck would have it, Frank rang this morning, and he has some Kuhmo V70 195/50R15 in a medium compound that are looking for an owner. They're a bit of a compromise - a full soft compound would be better for most things I do, but probably won't last the year, whereas the mediums will. In addition, if I do decide to do a few hundred kays just for fun on the roads, I won't be feeling guilty for shredding race tyres. But reading the various forums, these tyres seem to be pretty popular.
So one day after deciding I need some new tyres, four new tyres turn up. Nice. Now I just need to completely shred the tyres I have now, and get the new ones on for next year's events.
Anyway, this weekend was the Last Blast Superkhana, again organised by AEM and run at the Midland Speed Dome in the carpark. The circuit was the same as one of the rounds in the one-day challenge, so we could get some comparison times.
The circuit itself is pretty good - for me, it's mostly first gear still. There are only a few tricky points with this one, including a sharp left right which, as you'll see in the first video, caught me out.
So, Round 1 went fine, usual sort of testing run to make sure everything is OK. The surface was reported to be quite slippery, which it was. I think the pines were shedding a lot of needles, and these were creating a lot of dust which needed to be swept off by the front runners. Unfortunately, once more the video decided not to play ball and start, so Round 1 was missed for the cameras.
Round 2 was a different story - I got the camera working early, and I've managed to capture a small mishap for posterity, which I shall share with y'all. Coming into the left / right turn, I've somehow managed to completely understeer off the road - whether this was old and cold tyres, a bit of sand on the road where others had cut the corner, or just the car not being setup right, I somehow manage to understeer off at around 20kph, then lose it when I hit the grass. Cost around 12 seconds all up. No damage (which is one of the nice things with this circuit), just a bit annoying.
To be honest the car was pushing wide all day - you'll note from the first long left-hander I'm having trouble putting power down without the car pushing wide. As Gary and Frank pointed out afterwards, I should have backed off at that point, straightened up, then put my foot down, as going wide here cost a few tenths. The understeer at the bottom corner (sharp right-hander) occured under brakes this time - my fault. I know better than to do that now.
Round 3 was again a problem for the camera, but it was a neat run with no excitement. I think I ran around a 44.7 or thereabouts.
Round 4 was captured, which was good as it was my best run for the day. Still taking the sweeping left-hander wide, but I took the left/right a lot better this time.
I note that I'm still treating the corner with the tree with too much respect, but with the car understeering like it is, perhaps that's wise at this stage.
Ultimately, I think I do need new tyres. The ones on at the moment are three years old now, which is ancient for a soft compound. Looking at the surface of the tyre, they're shredding quite badly, even if there's some tread left. As luck would have it, Frank rang this morning, and he has some Kuhmo V70 195/50R15 in a medium compound that are looking for an owner. They're a bit of a compromise - a full soft compound would be better for most things I do, but probably won't last the year, whereas the mediums will. In addition, if I do decide to do a few hundred kays just for fun on the roads, I won't be feeling guilty for shredding race tyres. But reading the various forums, these tyres seem to be pretty popular.
So one day after deciding I need some new tyres, four new tyres turn up. Nice. Now I just need to completely shred the tyres I have now, and get the new ones on for next year's events.
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