B24
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RE: SW20 track car back on track
2012/08/17 12:54:04
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The car is almost ready for its running and tune. The new manifold is sorted,being ceramic coated right now. Still have a few small boxes to tick before the tune but almost there. Chances are,I will go straight to the track from the tuner.
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MRTurbo
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RE: SW20 track car back on track
2012/08/17 14:19:48
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Nice one Steve, can't wait to see some vids! :D Cheers Josh
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i
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B24
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RE: SW20 track car back on track
2012/09/21 19:24:24
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This is a unfortunate update. I used the wrong timing belt causing the valves to nip the pistons causing yet another delay in getting the car up and running again. As always, looking for the positive so the head will be built to handle the abuse it will receive for wasting so much of my time of late. Supertech valves, 1mm o/s, brass guides should solve this issue. The clutch sounds very cool, just like the old sports sedans! The engagment is bandwidth is about 15mm from the top of the pedal so its pretty much a light switch. Reverse works now. No plumbing leaks which is a relief. Chances are the IC will be changed a relocated yet again. Running a similar set up to EVO65's is the plan. The scoop can then be used for air intake. Also set up a exhaust temp for tuning. Just need to tie it into the DL1 to make the most of it. This is final setup for the turbo
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stuka
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RE: SW20 track car back on track
2012/09/22 20:43:52
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sorry to hear Steve, glad to see you are being positive about it though. the new turbo will be very pleased about the planned headwork!
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B24
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RE: SW20 track car back on track
2012/09/26 23:53:04
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Thanks mate, all good. I had a chat with the machinist yesterday who cleared everything up. It is all a blessing in disquise as the standard valves are two piece which would have failed under extreme load. They are all OK for street application but as this engine will be bangin out to redline for two hours straight, high g's, the temps will separate the valves causing failure, so its worth doing it right this time round. Also discovered the machine work which was done by Auburn Reconditioning was complete rubbish with regards to valve seating so they basically ballsed up every part of their work. I have a good mind to report them to Fair Trading.. I think every part of this car will be happy with every other part. The clutch, gearset, diff, tuff bottom end, built top end. Its going to be a serious power party once completed. It would be nice if it wheel spins in fourth! That would be cool.
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kameleon
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RE: SW20 track car back on track
2012/09/27 20:57:12
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B24
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RE: SW20 track car back on track
2012/09/27 22:00:32
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I know, it does but I cant give up. Have to keep at it. Question: Air to Air or Water to Air?
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dasic1
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RE: SW20 track car back on track
2012/09/27 23:33:47
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For a circuit car I would stay with a big air 2 air.
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purple5ive
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RE: SW20 track car back on track
2012/09/28 10:13:06
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sucks about the engine, but good on you for pressing on can you use the boot mount cooler setup option or have you taken up the boot area with other stuff?? a massive boot mount air to air would be the go for sure..
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B24
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RE: SW20 track car back on track
2012/09/28 11:08:04
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Im not a fan of the under the boot cooler as it cops too much heat from the car. It would be mounted similar to EVO65's car if air to air. The issue with air to air or water to air is heat saturation over a two hour stint. Air to air is lighter efficient but could suffer heat soak. Water to air is heavier, as efficient but less heat but could suffer mechnical failure due to pumps, complex is an issue to. Would a ebay air to air do the trick?
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purple5ive
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RE: SW20 track car back on track
2012/09/28 11:25:02
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Not sure where evo65 has the intercooler, but i wouldnt bother with the ebay, greddy knockoffs on your car.. i had mine heatsoak on the dyno to 60 plus degrees, stationary and no intercooler fan, but still quite hot.. people have pushed 250kw on them but thats on borderline limit and lots of cool down periods between dyno runs i would have thought the boot mount coolers massive fans would take care of any heatsoak and heat build up from exhaust as the fans will be blowing the heat away from the cooler.. worst case scenario re-route the exhaust as a side exit, and you have no exhaust heat to deal with..
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Mrskylighter
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RE: SW20 track car back on track
2012/09/28 11:30:35
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Could you do a massive a2a in the boot like my old setup (Recently Surok's) with two large 12" fans blowing air through it (and onto the exhaust) The exhaust heat would only be a problem if you were stationary without the fans running. I think the core on mine was 700mmx300mmx100mm It didn't come close to heat soaking on me on the dyno but that is obviously no where near the heat of 2 hours of track time.
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purple5ive
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RE: SW20 track car back on track
2012/09/28 11:47:41
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/\ i had your previous car in mind when i was mentioning the boot mount cooler...
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dasic1
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RE: SW20 track car back on track
2012/09/28 12:40:57
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I would be more concerned about the w2a heat soaking on the track. You would need a pretty big heat exchanger up front to cope with the limited off boost seen on the track.
I'm all for w2a, and even have one on my car but their not really suited for circuit racing
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B24
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RE: SW20 track car back on track
2012/09/28 23:50:45
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Thanks for the feedback people. I had the same thoughts on the w2a where you would need 20kg of coolant system to try and manage the temps but not 100% on which way to go. Looks like I will stick with a2a but may add a cool spray system to it which I can manage from the ECU in the car. We pit after lap 70 at which stage we can refill the coolant bottle so there is no need to carry too much extra weight around. Something like a 5ltr container with a windscreen water pump to spray liquid onto the IC. The car has plenty of air flow to the IC but this will help manage it better. Here is a pic of EVO65,s set up. He never had a temp issue after this set up.  Also curious on fuel consumption of the 250kw+ engines. Can someone help with this?
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