This years first trackday was a warm day with blue skies on Mantorp and a huge mix of different types of cars.
Things didn't go that well. It started with me being a bit late.
Then there was a Porsche that spilled oil on a long section of the track. (Those German cars....)
Then someone else went off and one corner was covered with gravel and the track was closed again.
When I finally got the tires warm there was too much traffic and no clear laps.
Things didn't go that well. It started with me being a bit late.
Then there was a Porsche that spilled oil on a long section of the track. (Those German cars....)
Then someone else went off and one corner was covered with gravel and the track was closed again.
When I finally got the tires warm there was too much traffic and no clear laps.
Engine problems
Lost top end power and the top speed on the straight was a bit too low. It got worse and worse, so I stopped driving and went home instead, worried that there was something very wrong with the engine.When I got home I did some troubleshooting and found out the alternator warning light connector was broken, and that prevented the battery being charged. (Stupid design!) My speculation is that the battery's voltage went down during the day and caused the fuel pump not being able to keep up the pressure when the fuel demand was peaking, making the engine run lean. Running an engine like this lean is not good at all and could cause fatal pre-ignition.
I need some way to prevent this from happening again.
I would like to be able to log the fuel pressure, and have some warning system for a fuel or oil pressure drop.
Here is a video I found describing how voltage affects the fuel pump flow:
http://www.youtube.com/watch?v=RjykWzDr1Kk
Noise check
The guy told me it made 106.4 dbA!
In many race circuits in this country have from this season a drive-by noise limit of 95dbA.
I started measuring the other cars, and no-one, except a stock Corvette, was below that limit.
Then I moved a little, and all readings changed. Then the wind changed, and the readings changed as well. Then I realized I could not get the same reading twice for the same car.
It seems like measuring noise at a race track is not an exact science.
I refuse to think my car makes as much noise as 106db, but I'm not surprised I have to do something about it if I'd like to drive on other circuits. I just don't know what yet.
In many race circuits in this country have from this season a drive-by noise limit of 95dbA.
I started measuring the other cars, and no-one, except a stock Corvette, was below that limit.
Then I moved a little, and all readings changed. Then the wind changed, and the readings changed as well. Then I realized I could not get the same reading twice for the same car.
It seems like measuring noise at a race track is not an exact science.
I refuse to think my car makes as much noise as 106db, but I'm not surprised I have to do something about it if I'd like to drive on other circuits. I just don't know what yet.
What about all the work done this winter?
All good!
The roll cage... stayed in place.
The suspension bushes hold together. The car felt nice and precise.
The exhaust manifold was not leaking!
The silencer mounts did not break.
No oil spew from the catch tank.
Engine did not leak oil from the front cover
Overall the car feels wonderful. Too bad I was worrying about the engine instead of enjoying myself.
I did not have the aeroscreen mounted as I didn't think it would do much difference. At the end of the straight the force against the helmet was overwhelming. I must put the aeroscreen back on.
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