2013 Bonneville Results
09-10-2013, 03:33 PM
#16
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At least your going back for another run in 2014, so all that investment in the car modification won't be wasted.
So much work in the last 4 years to prepare for this. I was actually building this motor while I was at Pikes Peak in 2009. Then wind tunnel work with the car in 2011, then computer modeling in 2012. The investment in time and money to give us the best possible chance at a record has been very high. Lots of effort by many people.
Here is a pic from one of the many, many different aerodynamic simulations we ran once we got an accurate point-cloud of this car. Just a sample. We would "run" 14" rear spoilers vs 10" rear spoilers, change the spoiler angle, raise and lower the hatch glass, adjust the nose and air dam, and more.
Then the best confirmed data had to be put into metal, fabricated, and put ont he car. My job.
We will get it there, and we will see how close the computer simulations and the wind tunnel data are to real world conditions.
09-10-2013, 03:38 PM
#17
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Thread Starter
Conventional (V-8) power? I only ask because the "buoy and flag" you've got inserted in the air dam hints at possible turbine power. But they don't need H20 cooling, IME.
Would you care to share the details of the engine, trans, etc?
And do you have no radiator simply to reduce drag? Is it a "total loss" cooling system? Or do you recirculate the hot water back into the 25 gallon reservoir?
And re: the "oil separator". I'm familiar with those on model steam launches. What does yours do?
What types of speed do you expect to hit? And what have you attained? (Again, if you don't mind me asking).
Would you care to share the details of the engine, trans, etc?
And do you have no radiator simply to reduce drag? Is it a "total loss" cooling system? Or do you recirculate the hot water back into the 25 gallon reservoir?
And re: the "oil separator". I'm familiar with those on model steam launches. What does yours do?
What types of speed do you expect to hit? And what have you attained? (Again, if you don't mind me asking).
Here is a link that will tell you more about the car:
http://www.928motorsports.com/our928sc/
Click on the picture to drill in for more information on the set-up you want.
09-10-2013, 05:12 PM
#21
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09-10-2013, 05:23 PM
#22
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Here are a couple pics of the rear hatch area.
All glass was replaced with polycarbonate and raised to flush-mount to further reduce our drag. The challenge was that each quarter-window and the hatch glass itself is curved in two directions - both front-to-back and side-to-side. It was important that we arc the polycarbonate in the right amounts in the right directions, or we could make things worse rather than better.
We were very pleased with the finished results.
All glass was replaced with polycarbonate and raised to flush-mount to further reduce our drag. The challenge was that each quarter-window and the hatch glass itself is curved in two directions - both front-to-back and side-to-side. It was important that we arc the polycarbonate in the right amounts in the right directions, or we could make things worse rather than better.
We were very pleased with the finished results.
09-10-2013, 08:19 PM
#23
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Here are a couple pics of the rear hatch area.
All glass was replaced with polycarbonate and raised to flush-mount to further reduce our drag. The challenge was that each quarter-window and the hatch glass itself is curved in two directions - both front-to-back and side-to-side. It was important that we arc the polycarbonate in the right amounts in the right directions, or we could make things worse rather than better.
We were very pleased with the finished results.
All glass was replaced with polycarbonate and raised to flush-mount to further reduce our drag. The challenge was that each quarter-window and the hatch glass itself is curved in two directions - both front-to-back and side-to-side. It was important that we arc the polycarbonate in the right amounts in the right directions, or we could make things worse rather than better.
We were very pleased with the finished results.
You need to build a kit airplane carl...your right down the road from Oshkosh!!
09-10-2013, 08:33 PM
#24
Nordschleife Master
09-11-2013, 07:18 AM
#25
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Hopefully you will be able to look back on this and laugh about it when the lost fuel $$$ have blended into the remote corners of your grey matter!
It is quite surprising how when one is so engrossed dealing with thousands of details/problems on a project one can easily lose sight of the mission basics.
Happens all the time- you are in good company! NASA spent $$ millions developing a ball point pen that worked in space- the Russians used a pencil!
Regards
Fred
09-11-2013, 08:54 AM
#26
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Carl,
Hopefully you will be able to look back on this and laugh about it when the lost fuel $$$ have blended into the remote corners of your grey matter!
It is quite surprising how when one is so engrossed dealing with thousands of details/problems on a project one can easily lose sight of the mission basics.
Happens all the time- you are in good company! NASA spent $$ millions developing a ball point pen that worked in space- the Russians used a pencil!
Regards
Fred
Hopefully you will be able to look back on this and laugh about it when the lost fuel $$$ have blended into the remote corners of your grey matter!
It is quite surprising how when one is so engrossed dealing with thousands of details/problems on a project one can easily lose sight of the mission basics.
Happens all the time- you are in good company! NASA spent $$ millions developing a ball point pen that worked in space- the Russians used a pencil!
Regards
Fred
09-11-2013, 09:54 AM
#27
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If you live long enough, you get one of these medals. Lol. I think most on this forum have done this once before in some way or another. Cudos for you posting it. Many wouldn't.
I too look forward to seeing what can be done with your car.
I too look forward to seeing what can be done with your car.
09-11-2013, 09:55 AM
#28
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Back when I was racing, I had several instances of such selfless assistance - a generator (!) on the side of I-85 on Sunday afternoon, a radiator rebuild (wrapped around the steering rack on a Formula C) on Saturday afternoon in Savannah, etc., etc. People are good...
Our last trip to Bonneville, my younger son was second car on the line on the last day, ready for a record run (with a car that easily beat the record speed in his licensing runs - the old record was mine!) when the wind started blowing. Four hours later, the meet was cancelled. We didn't get to go back...
Stuff (good and bad) happens.
Our last trip to Bonneville, my younger son was second car on the line on the last day, ready for a record run (with a car that easily beat the record speed in his licensing runs - the old record was mine!) when the wind started blowing. Four hours later, the meet was cancelled. We didn't get to go back...
Stuff (good and bad) happens.
09-11-2013, 01:30 PM
#29
Developer
Thread Starter
Weather is part of our sport.
Usually, we just put on rains and go race. Just can't do that at Bonneville.
The track will dry, we'll go in June, and see what she'll do.
Usually, we just put on rains and go race. Just can't do that at Bonneville.
The track will dry, we'll go in June, and see what she'll do.
09-11-2013, 04:45 PM
#30
Drifting
Bonneville looks beautiful. I will go someday.
Carl again great work on the hatch, I can see it has been engineered to stay together at speed.
Re Hatch polycarb;
I have been thinking of trying to form a polycarb hatch window to the factory shape by heating the sheet slowly over a hatch window to 300F and hopefully it would slump to the shape of the factory glass.
It could be safely tried outdoors with a few cheap LP heaters. The polycarb sheet would simply lay over it. If it worked you'd simply trim to shape. http://www.mrheater.com/ProductFamily.aspx?catid=42
Quarter glass is small enough that it could be tried in the kitchen oven.
Ploycarb starts to slump at 297F.
Carl again great work on the hatch, I can see it has been engineered to stay together at speed.
Re Hatch polycarb;
I have been thinking of trying to form a polycarb hatch window to the factory shape by heating the sheet slowly over a hatch window to 300F and hopefully it would slump to the shape of the factory glass.
It could be safely tried outdoors with a few cheap LP heaters. The polycarb sheet would simply lay over it. If it worked you'd simply trim to shape. http://www.mrheater.com/ProductFamily.aspx?catid=42
Quarter glass is small enough that it could be tried in the kitchen oven.
Ploycarb starts to slump at 297F.