Australian Belly Tank

[Freud]

Can't see Ya.

Click on the foto.

FerD

[wobblywalrus]

It is important to read about the duty cycle and to not over work the compressor and wear it out prematurely.  This is something I learned the hard way.   

[manta22]

It is important to read about the duty cycle and to not over work the compressor and wear it out prematurely.  This is something I learned the hard way.   

Me too, but in my case the compressor's electric motor died. I replaced it with a far better one but it was $$$$$$$$.

[Milwaukee Midget]

It is important to read about the duty cycle and to not over work the compressor and wear it out prematurely.  This is something I learned the hard way.   

Me too, but in my case the compressor's electric motor died. I replaced it with a far better one but it was $$$$$$$$.

Neil, don't tell me that after years of stockpiling ultraraium alloy widgets and surgical steel pop rivets, you forgot to pick up a surplus electric motor along the way? 

When Kate and I got married, we registered at Sears.  As a gag - and unknown to Kate at the time - amongst the linens, place settings and a toaster, I signed us up for a 33 gallon Craftsman air compressor.

12 years, and the Craftsman's never given me any grief . . .

[manta22]

MM;

I looked through my surplus stash and found a couple of motors--

1. A DC motor that runs on 90VDC.

2. An AC motor that runs on 220VAC 3-phase 400Hz.

3. A motor that runs on red fuming nitric acid and hydrazine.

Yes, I should have bought a Sears Craftsman compressor back when they were made in the USA! 

Regards, Neil  Tucson, AZ

[tauruck]

This has gone from lost equipment to a compressor comp. I'll weigh in with my Ingersoll Rand 220l/220v. I had a problem with the motor in the beginning  and I made such a nuisance of myself they supplied a new one. The rep couldn't find my place so I met him at the filling station. For some reason he didn't want to follow me home to collect the "faulty" motor. From the time I got home the original has worked flawlessly. I still don't understand what actually went on but I do have a new spare.

[Dr Goggles]

Aye,I have a no name made by Ingersoll,the original motor was crap, I, just in case anyone hadn't noticed am a floor it until it breaks kinda guy...when the motor died I took it to an air compressor specialist, the new motor starts on a long lead if needed and has a high duty cycle,I haven't been able to break it yet.

[grumm441]

I haven't been able to break it yet.

G

[Stainless1]

 I signed us up for a 33 gallon Craftsman air compressor.

12 years, and the Craftsman's never given me any grief . . .

Chris, got mine in 1974, only a 15 gallon 110v one, I've turned it up to 125 psi, but it really is convenient to have it when I need one on wheels.  Bought a stand up unit for the shop 6 years ago, hope it lasts as long.

James... keep trying... oh, nice blaster... I was trying to figure out how you would lose one. 

[Dr Goggles]

Aye,I have a no name made by Ingersoll,the original motor was crap, I, just in case anyone hadn't noticed am a floor it until it breaks kinda guy...when the motor died I took it to an air compressor specialist, the new motor starts on a long lead if needed and has a high duty cycle,I haven't been able to break it yet.

It's fifteen years old,has painted thirty cars and a few houses and many times I have used it to blow all the dust and grit in the shed up the Revetends nose,he likes that

[Dr Goggles]

Just got some useful info.

When we ran at Gairdner this year we didn't get a full timeslip, just top speed. Due to the peculiarities of the new timing system, that's all it gave us. At the hot rod show the car was at a few weeks back Animal told me he had those numbers written down.......

On our fastest run

Mile one:    186.587
mile two:    215.041
mile three:  192.190

So, going on the fact that the revs for 215.041 with the 2.41 are the same as the 205 we ran with the 2.56:1 rear end we can assume that the car had started to rev limit by THE BEGINNING of the second mile,this is about the only data we have but it is very encouraging, it gives me confidence that the motor will pull the 2.28 as from what I see we were topping out somewhere before the three mile mark and that was starting in third gear at about 45mph.Next time we'll have a functioning first and second.

........

[Reverend Hedgash]

Excellent news Dr G (thanks Animal), and proof that the shape hasn't let us down yet. But I reckon we must be getting to the pointy end of "trying to shove a chest of drawers up a frog's bum" and so am keen to get a bit of a tidyup on the final bodywork items that will be contributing to minor but now significant drag.

• You said we have been generously given some aero shapes for the axles by Jon B (thanks JB: btw where is the longer model of your bike you were sending me for an update on the paint design?). Can you send me some dimensions of these? I want to add them to our 3d model and also draw up a detail for fixing so the rear ones can be indexed in neutral, and positive positions for downforce so we have some options when we hit lack of traction.
  
  We need to bend down the lip on top of the canopy which is a nasty edge. Multiple cuts and bends and rewelding and grinding there.
  
  If we are to get really finicky, (and I know you are not a big fan of the term) I would like to inlay the aluminium straps on the canopy  and the side windows so there is no lip on these too. I am thinking marking and cutting to a set depth with the air-tool then removal of material with a router. Need to experiment with the offcuts that we have (used to have?).
  
  The gaps around the front and rear axles and steering rods are a source of drag and we need to find a rubber grommet to seal these with applying undue pressure on the bodywork. I am thinking maybe a plumbing supplier might have an appropriate size item for sealing of stink skinny pipes from wcs when they go through the roof.

I am seeing the Dean next week so will argue that I need to be back in Oz to assist with these items at some stage so fingers crossed. It is rare that when you build something from scratch that you ever feel like it is remotely "finished" but if we get these items on track then it must be as close as dammit.

Rev H+

[Dr Goggles]

Just in case anyone was wondering about this statement...

So, going on the fact that the revs for 215.041 with the 2.41 are the same as the 205 we ran with the 2.56:1 rear end we can assume that the car had started to rev limit by THE BEGINNING of the second mile
 
We had already seen the car run 205.xxxmph which is in the region of 6316rpm, at full hook up 215 with the 2.41:1 is 6236....so, the car was rev limiting in the region of 6300rpm.Sooooooo it must have been going that quick at the start of mile two to have averaged that speed over the mile..................

yeah, anyway....

Yes to all that Rev, sometime.....

[Jon]

Good news on the rpm, more gears and more rpm for 2014, vellly intelesting.

I'll have a look on my work computer for dimensions on the foils and email them Dik.

The next step from the foils (or before if Goggs extracts his digit :0) would be to pull the steering tierods up so they're straight behind the front axle to put one fairing over the both rather than an axle to tube and a small one over the tie-rod.

And then: root fairings to blend the axle tube fairings into the body to cut down on interference drag from the joins.

And then: root fairings to blend the axle tube fairings into the rear wheel inner plates for same reason.

And then: redo the front axle stays so that they don't stick up and down from the axle tube.

And then: fairings over the front kingpins.


And then:.......... Will be slipperier than any body lifting air over the axle lines You have a pretty slippery and small chest if draws, will need to be a damn slippery cupboard to have lower total drag...

I might go now.
jon

[Elmo Rodge]

Just be careful to keep the axle to wheel fairings inboard of the narrowest inside wheel dimension.  I'm assuming you have the same streamlining rules as us. By the way, a lot of this stuff is on my list as well.  Wayno