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  #191  
Old 07-28-2016, 01:26 PM
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Too shiny! Penalty laps!
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  #192  
Old 08-02-2016, 03:10 PM
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Default Race report

Friday:
Made it through tech with flying colours. Our internet digging and binder of documents kept the brakes within the 2x rule. We did have to take some points for the caliper adapters. We also took some points on things that I wasn't sure was right, but still ended up with a 485 point car. We were a bit disappointed that our cage wasn't admired more.

Saturday:
JustinL (red gloves) was in for the first stint and also his first drive in the car. We started mid pack and after a few laps of learning the car and locking up the brakes a couple times things settled down and we worked the car up to 9th place. A great battle was had with the neon "slimer" car. Overall, some great respectful driving from most of the cars out there. About half an hour into the race, the exhaust became increasingly louder and started to strongly vibrate the car. After a brief off at the exit of turn 6, the car lost all power and had the first of it's tows. The car came in for diagnosis, which turned out to be the retaining screw on the distributor rotor had vibrated loose and come off which lost ignition timing. This took about 1/2 an hour to fix and then Brock went out for his stint. 20 minutes later, Brock came back through the pits dragging the exhaust pipe which was quickly extracted and made the car sound like a real race car. After Brock's stint the car came back in for Chrenan who got belted in when we noticed a small coolant leak from the rubber chair foot that was being used as a cap on the heater line. In addition to this, there was no longer an alternator belt on the car. One of the tensioner bolts backed out and caused the belt to leap off onto the track somewhere. We knew we were out of the race but still wanted to get some track time in, so a trip to the pull more parts of JustinL's car got the car back on track, but this time with a massive miss fire. Unfortunately the car was undriveable and we called it a day.

Sunday:
After the repairs over night to what we thought was a faulty tps, the car was back on track running loud again. JustinL again took the start, this time from the back of the pack in case the fix didn't cure the problem. Everything seemed ok and we worked our way up for an hour before turning the car over to Erik. Erik came up to speed quickly and reported that the stuttering had returned, but still managed a solid 1.5 hour stint. Chrenan jumped in for his stint, but came back in because of the ignition problem. JustinL hopped in for a diagnosis run and after a couple exhaust farts, the car came back to life. An hour later, 2 more bolts backed out. This time the clutch slave jumped out of the bell housing. Back to the paddock for a repair and then send Chrenan out again. Unfortunately the ignition only got worse from there and we decided to retire the car.

Driving impressions:
The car is incredibly easy to drive. If it wasn't so loud with open headers it would be downright pleasant. There is some mild understeer at mid corner and corner exit. A little more front camber should help resolve that. The car has brakes for days; the pedal always feels perfect and is very easy to modulate. It rotates very well under trail braking and inspires confidence that it will do what is asked. It is quite slow on the straights. There are only a few cars that we can overtake in a drag race.

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  #193  
Old 08-02-2016, 03:21 PM
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Default Race weekend pictures

Our weekend in photos:































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  #194  
Old 08-02-2016, 05:20 PM
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Default More photos

Some more build photos that didn't make it in before the race and some race day repair pics:































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  #195  
Old 08-03-2016, 08:58 AM
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You guys did a hell of a job!

Sounds like despite the issues fun was had by all and you have a solid basis from which to do more of this stuff.

Any plans to head to the states with it? Portland is great fun.
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  #196  
Old 09-14-2016, 03:30 PM
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We fixed the exhaust from the Chumpcar race and decided to go side exit with it. It's sort of muffled with a long Thrush muffler before turning towards the driver side and exiting just behind the door. It sounds pretty good now, though quite loud down the front straight with the sound bouncing off the concrete. We also swapped in some newer crank sensors which cleared up the bucking and stalling we were experiencing during the race.

3 members of the team took it out for a lapping day and got 5 hours of nearly constant running in the dry and the rain. Driver changes were done every half hour and everything actually went pretty well except we lost the starter, so push starts were needed for most of the day.
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  #197  
Old 10-18-2016, 07:47 PM
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Default Pre 2017 season winter work

The final track day with the car was cut short and abruptly with an exciting slide off the back of the west course just before turn 7. Coming out of 6 the secondary throttle return spring must have broken then jammed the throttle open. When the brakes were applied for turn 7 the rear wheels continued to be driven and there was very limited power assist so the car really didn't want to slow down. Eventually the fronts locked, but the car still left the track and came to rest in the grass. The damage was thankfully limited to flat spotted tires and a loosened exhaust. The car is now up on stands again for winter work. Front wheel bearings have been re-tightened, exhaust is hung back up again, and the throttle cam has been flipped back to it's stock setting and the secondary return spring removed.





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  #198  
Old 10-19-2016, 01:23 AM
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Originally Posted by 944Crew View Post
The car is now up on stands again for winter work.
Assume the position!
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  #199  
Old 01-04-2017, 03:55 PM
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Some problems that we came across at the end of last season included: mistimed balance shaft, broken throttle return spring, leaky 500,000km radiator, understeer mid corner and corner exit. Thus the work has started. First was the easiest job of removing the broken spring and flipping the throttle cam back to it's stock position. This should hopefully prevent the jamming that was causing a sticky throttle followed by a jammed open throttle 944 throttle cams get flipped to give a snappier feel on the street, but on the track this car spends so much time at full throttle that the faster throttle response isn't really noticed. A new spring was added and seems to work well.

Next job was pulling the belt covers and retiming a balance shaft that was a likely culprit for so many of our bolts backing out from increased vibration.

A passenger seat and harnesses were added for instructor ride alongs etc.

A new Chinese radiator was purchased, but it seems that the specs of the radiator used to draw up the plans were guesses as none of the hose fittings are really the right size. Our fans won't fit and will need to be chopped up into a single fan.

A smaller front sway bar is being swapped in to help with the understeer. We're really close to a great balance; this is just some fine tuning.



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  #200  
Old 04-26-2017, 03:03 PM
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Default Pre season update

Car is essentially ready to go. The Chinese radiator is in and not leaking any more. We did have to trim some of the brackets to get it to fit, but it's in there now and not going to leak like the half-million KM one. Rule changes this year allow us to keep the rear hatch with a film. This means we can make the car spec944 legal as well as chump legal simultaneously... not that it's ever been raced as a spec car, but it could be. A passenger seat and harness has been added so the car can also be used as a very safe instructor car.

We did find a fuel leak on the initial fire up. The hose clamp we used on the fuel pressure regulator was a bit too big and didn't conform nicely to the shape of the small hose. Thankfully we didn't burn down the house before finding the leak, but it did make a puddle on the garage floor. A smaller clamp was swapped on and has been added to the list of pre race checks.

Next up is rust reduction and paint.
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