Thursday, October 27, 2011

Scoping things out #1

So after the shakedown at NoLimits Sprint I've compiled below list

- Suspension creaks and clunks on weight shifts, minor but bushing replacement was on the cards anyway.

- There seems to be excessive whining noise, initially thought the diff pinion/ring gear whine, then the wheel bearings. But I'm told the Ralliart diffs and wheel bearing were done 500km ago and are good as new.  I've check for play in the wheels and there were none. Got a comment on the forums saying old R-comps will make that noise, and it seems more likely the cause at the moment.

- Rear end hops on exit from the left hander up the hill. This corner loads the rear right on exit before the crest. My suspension experience from bike racing tells me I need to dial up the rebound in the rear. Not sure how it would apply to cars but will try it anyway.

- Looking at the video, I'm reving the 4th gear high into the redline unnecessarily sometimes hitting the limiter. Will need to short shift into 5th on the front straight and before the basin so I don't get too busy with the stick and brake at the brake markers.

- Need ("Like to Have") quick release for the steering wheel. Since I'm a short guy steering and the fixed bucket seat are placed very close to each other.  This makes it very difficult to get in and out of the car in a hurry (Safety issue?) especially with the cage work covering the half the door opening as well.

- My tyre pressures didn't get up to optimal on the night and I was too lazy to pump it up. I started with 25psi cold for both front and rear and it didn't even reach 30psi on the night (probably the cause of the tyre noise). It got upto around 28-29psi, should really be 31-32psi for the Dunlops I was on. I should really have recorded the ambient temp vs tyre temp/pressure..... next time.

- The forged engine did use a bit of oil, I need to watch the oil level and make sure it's warmed up good and proper before each run and cooled down afterwards.

- GoPro sucks in low light, only footages from Canon G11 were usable.

- Need to be gentle with the brakes when the tyres are cold. No ABS meant lockups, especially the rear.

-  Somehow, my rightfoot got really fatigued and had cramps towards the end of the night. The unsual foot angle during heel & toe might have triggered this over the old bike injury I reckon.



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