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| Re: 3J Improved Production coupe- Racing Videos & Progress |
Subject: Re: 3J Improved Production coupe- Racing Videos & Progress
by mcgee on 2016/2/18 7:19:48
Car is in at the Dyno this week. Had some initial drama's that hopefully are now sorted.
He was doing a couple of runs and noticed the oil warning light come on so stopped and had a look.
The car had evacuated all its engine oil over the dyno (nearly 5ltrs). He seemed to think it was coming from the turbo.
He also mentioned that when i was playing with the CAM timing that one of the bolts was missing and the others were loose. WTF.
By this stage all I could see was $$$ for repair and wondered WTF had gone wrong.
So I rushed down there to see what had happened and found that the oil return line from the cooler had come loose and this was the cause of the leak. The fan has migrated the oil all over the engine bay so hard to see where it was coming from.
I checked the log file and noticed that the oil pressure looked ok during the runs and he said he noticed the warning light at idle. Lucky for me I had the warning table set quite high to stop before there was any damage.
As for the cam gear, I don't know what happened there. The cam timing cover was cut away so the bolt has at least vacated the area and isn't rattling around the timing belt. I noticed the CAS had rotated as well and can't remember if that was after I set the timing so am getting him to re-set the timing.
So the tune is not yet completed. Car is currently making about the same peak power but stays there longer in the top end (No power taper). It's a bit hard to compare with last dyno tune (Different Dynos brands, differnt tyre sizes and different diff ratio). At the moment she holds full boost to redline too, so i think the wastegate pipe changes are working to reduce manifold backpressure. Power still comes on around 4k and I honestly I don't think he as leaned on it too much yet and we should see more when i gets back on the dyno shortly.
At this stage I am a little dissappointed that the increase compression ratio didn't have a great effect on the overall numbers. I think the proof will be on the track. I will keep you posted when I know more.
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