nitram38
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posted on 8/4/08 at 07:37 AM |
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Regarding oil and water temps, I know that this is slightly different, but every week I run the diesel generators at work.
We monitor the oil and water temps.
The oil temp (sump monitor) always matches the water temp (about 70oC) when the engine is flat out.
What temp does a bike engine water and oil differ?
Do they run the same or different?
[Edited on 8/4/2008 by nitram38]
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Puk
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posted on 8/4/08 at 07:41 AM |
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Horizontal rad?
James - How about a horizontally mounted rad above the diff, with a fan under it to move the air when stuck in traffic? If you can find an oil to
water heat exchanger then a single water rad sized to handle all of the heat losses could be used. I guess you'll need to relocate the fuel tank
though. Is there space to build a scrutineer friendly enclosure between the seat backs and the engine? Or perhaps between the engine and the diff and
offset from the center line (to avoid the chain).
Before you judge a guy, walk a mile in his shoes. Then when you judge him, you're a mile a way and you've nicked his shoes.
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cloudy
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posted on 8/4/08 at 10:34 AM |
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Another idea what about one of these one side?
http://www.rallydesign.co.uk/product_info.php?cPath=340_367&products_id=2261
and then one the same size the other side for the water?
I presume you can't "overcool" the oil?
I quite like the side mounted ones as it helps it look a little less odd from the front 3/4 where the body tails off at the bottom... I had thought of
making a big air duct atom shape between the seats and then splitting this between the engine intake and a horizontal rad as suggested by Puk
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Puk
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posted on 8/4/08 at 10:53 AM |
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quote: Originally posted by cloudy
I presume you can't "overcool" the oil?
Is there such a thing as an oil flow thermostat?
Before you judge a guy, walk a mile in his shoes. Then when you judge him, you're a mile a way and you've nicked his shoes.
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andyd
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posted on 8/4/08 at 03:55 PM |
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quote: Originally posted by cloudy
I presume you can't "overcool" the oil?
Oil must have a working temp though to be any use to the engine? No expert on the matter but I'd say for optimum lubrication there could be such
a thing as too cold... although too cold for oil might be pretty damn hot!
Trying to bypass the cooler in some way when it's below a certain temp might be worth investigating but I'm sure an oil expert will be
along shortly to confirm if it'll be an issue or not.
Andy
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hughpinder
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posted on 8/4/08 at 05:28 PM |
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I have a book of tuning 4 stroke engines that reccommends oil temp should be 95 to 110 degC. Above 130 - too hot and breaks down, below 95 the oil is
thicker and does not lubricate as well, and can rob a small percentage of your engine power.
Engine is usually more efficient if water is set cooler (70 degree thermostat), but can also run water temperature up to 110 (as its under pressure).
Regards
Hugh
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SeaBass
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posted on 15/5/08 at 11:52 AM |
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Another consideration is that the placement in the pic is directly in line of anything that gets thrown out from the front wheels...
I know my wing protectors get hit a lot there!! Not sure I'd like an ally rad to be blasted in that way.
quote: Originally posted by cloudy
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cloudy
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posted on 15/5/08 at 01:36 PM |
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That is a good point actually...
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andyd
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posted on 15/5/08 at 02:15 PM |
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Could you not use the airbox for all purposes or do you think it'd have to be huge to cope with all three things?
Andy
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cloudy
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posted on 18/5/08 at 09:02 PM |
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Just a pic from yesterday - roll bar and rear suspension is in
![](http://www.digital-car.co.uk/wr4/mk2/34.jpg)
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andyd
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posted on 18/5/08 at 09:12 PM |
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Damn fine work there my good man.
I bet you're itching to get out there for a blast aren't you?!
Andy
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nitram38
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posted on 18/5/08 at 09:25 PM |
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That looks ![](/images//smilies/cool.gif) ![](/images//smilies/cool.gif)
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cloudy
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posted on 18/5/08 at 09:41 PM |
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quote: Originally posted by andyd
Damn fine work there my good man.
I bet you're itching to get out there for a blast aren't you?!
I may have already done so - resulting in soiled underwear! ![](/images//smilies/shocked.gif)
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Benonymous
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posted on 19/5/08 at 01:30 AM |
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Awesome work Cloudy The finished car will be something to be proud of.
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Gakes
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posted on 19/5/08 at 06:36 AM |
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Cloudy, I'm sorry if u thort i was copying ur design, I never new how similar our frontal section is, where the suspension mounts are.
![](/galpreviews/11209608_1066947253318791_4464293735713965731_n.jpg) ![Description](/gallery/11209608_1066947253318791_4464293735713965731_n.jpg) Description
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Gakes
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posted on 19/5/08 at 06:36 AM |
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[Edited on 19/5/08 by Gakes]
![](/galpreviews/11209608_1066947253318791_4464293735713965731_n.jpg) ![Description](/gallery/11209608_1066947253318791_4464293735713965731_n.jpg) Description
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sgraber
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posted on 19/5/08 at 04:19 PM |
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I'd like to throw my opinion in here about a few things.
#1 - the car is abso-f-ing-lutely GORGEOUS. I think it ranks in the top 10 of my all-time best looking list. It's just tubes for godsake, but
the proportions are just right and don't need panels to cover it up. So congrats on hitting my g-spot cloudy.
#2 - It was just mentioned about stones and other items being thrown up that might impact your cooling and that is a valid point. A friend of mine
spent a week recovering from a stone that impacted his left gonad while driving an Atom at 80mph. He tells me that he will never drive in it again as
he seriously thought he had lost the nad. You may want to consider the direction that stones can leave the tyres?
Might I suggest mocking up in 3D the coolers in a duct above the engine F1 style above the seats. Air blows down across the coolers then flows across
the engine and forces the air out the back. The shape of the inlet might be rectangular and sit along the top of the rollbar?
Steve Graber
http://www.grabercars.com/
"Quickness through lightness"
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cloudy
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posted on 19/5/08 at 04:49 PM |
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quote: Originally posted by Gakes
Cloudy, I'm sorry if u thort i was copying ur design, I never new how similar our frontal section is, where the suspension mounts are.
I was only kidding with you - yours definately has it's own style, looking forward to see it for real...
James
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cloudy
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posted on 19/5/08 at 04:52 PM |
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#1 Coming from you - with your beauty of a car I consider that high praise indeed - thankyou!
#2 That sounds really painful! I'll certainly take that into account! perhaps impact resistant clear polycarb sides would increase safety in the
cockpit...
#3 Ive managed to move the fuel tank to behind the seats in an effort to increase safety and reduce the C of G. Hopefully this allow for more space at
the top/back for cooling - Will mock something up....
quote: Originally posted by sgraber
I'd like to throw my opinion in here about a few things.
#1 - the car is abso-f-ing-lutely GORGEOUS. I think it ranks in the top 10 of my all-time best looking list. It's just tubes for godsake, but
the proportions are just right and don't need panels to cover it up. So congrats on hitting my g-spot cloudy.
#2 - It was just mentioned about stones and other items being thrown up that might impact your cooling and that is a valid point. A friend of mine
spent a week recovering from a stone that impacted his left gonad while driving an Atom at 80mph. He tells me that he will never drive in it again as
he seriously thought he had lost the nad. You may want to consider the direction that stones can leave the tyres?
Might I suggest mocking up in 3D the coolers in a duct above the engine F1 style above the seats. Air blows down across the coolers then flows across
the engine and forces the air out the back. The shape of the inlet might be rectangular and sit along the top of the rollbar?
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Gakes
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posted on 19/5/08 at 06:03 PM |
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Cloudy, how was the test drives so far, hows the handling and acceleration?
how much does she way?
![](/galpreviews/11209608_1066947253318791_4464293735713965731_n.jpg) ![Description](/gallery/11209608_1066947253318791_4464293735713965731_n.jpg) Description
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cloudy
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posted on 19/5/08 at 06:10 PM |
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Haven't weighed it recently but three people can lift it off the deck and move it around
Handling I think can be summed up as lairy!
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COREdevelopments
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posted on 31/5/08 at 07:01 PM |
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hey any more progress? i love the pic on page 34 of the car it looks great with you, keep up the quality work!!
Rob
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cloudy
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posted on 14/6/08 at 03:22 PM |
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Thanks to Wadders for the design of this part. I think it's a really good solution, for a stronger, lighter cycle wing mount.
I've cut the holes in the carbonmods wings (That was fun!) and mocked up the mount. Just need to jig up the position of the wing and then make
it!
[Edited on 14/6/08 by cloudy]
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Fred W B
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posted on 14/6/08 at 07:55 PM |
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Re positioning the wings, I really like the trick I saw on American chopper of laying a hose (would use two on a car) on the tyre and putting the wing
on top of it. Select the hose diameter to set the gap to the size you want.
Cheers
Fred W B
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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cloudy
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posted on 14/6/08 at 08:40 PM |
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You'll laugh - I'm using a christmas rope light to make the gap! Was the only thing the right size ![](/images//smilies/tongue.gif)
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