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Author Topic: Australian Belly Tank  (Read 1805672 times)

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Offline Reverend Hedgash

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Re: Australian Belly Tank
« Reply #4380 on: March 15, 2014, 05:04:51 PM »
Wow, nice write up, worth the wait.

Broken down tow vehicles, hand injuries, frustration, fatigue and good mates helping. Sounds right.

D

Offline Sumner

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Re: Australian Belly Tank
« Reply #4381 on: March 15, 2014, 05:18:37 PM »
Great trip/race report and you now do have a better idea in the direction you need to head in for next year there or this year here,

Sumner

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4382 on: March 15, 2014, 05:26:21 PM »
I'll be at Bonneville for Speedweek, the SOS won't be.
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline Elmo Rodge

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Re: Australian Belly Tank
« Reply #4383 on: March 15, 2014, 06:26:40 PM »
Looking forward to seeing you, my friend.  :cheers: Whom else is coming? Good job on the writin'. Wayno

Offline Sumner

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Re: Australian Belly Tank
« Reply #4384 on: March 15, 2014, 06:32:07 PM »
I'll be at Bonneville for Speedweek, the SOS won't be.
 

Well I certainly like the part about you being there (here) and hope you can get by the house and see us there also,

Sumner and Ruth

Offline Speed Limit 1000

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Re: Australian Belly Tank
« Reply #4385 on: March 15, 2014, 07:02:33 PM »
Outstanding trip report. We all can tell good stories about what broke on our way to race.
Looking forward to having a beer with you to learn more :cheers:

John
John Gowetski, red hat @ 221.183 MPH MSA Lakester, Bockscar #1000 60 ci normally aspirated w/N20

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4386 on: March 15, 2014, 07:21:24 PM »
Outstanding trip report. We all can tell good stories about what broke on our way to race.
Looking forward to having a beer with you to learn more :cheers:

John

I don't think the inspectors head was broken, just bruised... :-D
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline Freud

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Re: Australian Belly Tank
« Reply #4387 on: March 15, 2014, 09:27:37 PM »
The Kilo Klub is open to you.

You can tell us the real story.

I'm enjoying that swollen thumb.

It hurts  G O O D.

FREUD
Since '63

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4388 on: March 15, 2014, 09:38:06 PM »
The Kilo Klub is open to you.

You can tell us the real story.

I'm enjoying that swollen thumb.

It hurts  G O O D.

FREUD

Yeah, that kind of pain that is like a whistling in yer ears,seeing white, all-over sweat..... I don't remember my broken leg hurting that much. It was itchy for a week after that and the knuckle was creaky...getting back to normal now.

Kilo club better look out.
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline salt27

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Re: Australian Belly Tank
« Reply #4389 on: March 15, 2014, 11:48:57 PM »
Goggs,
  Thanks for the recount, I enjoyed it and agree with Freud, the puss flying from the thumb was a highlight.

Would of been nice to have a photo of the thumb. 

Looking forward to seeing you at Speedweek.

  Don

Offline Tman

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Re: Australian Belly Tank
« Reply #4390 on: March 16, 2014, 10:00:10 AM »
Another epic tale! :cheers:

Offline Stainless1

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Re: Australian Belly Tank
« Reply #4391 on: March 16, 2014, 11:17:39 AM »
Actually I have noticed the salt is good for helping cuts heal... once you get past the stinging  :roll:

Good story for a rush job  :cheers:

Great shirt on your partner... I'm thinking you rev your gears to the max you have a chance to pull the gear, short shifts leave you in that "not enough power to overcome the aero drag" part of the band.  Smaller motors carry their power in the revs, but you already know that.  I guess if you max out on the 28s past 215 you can try the 14s again. 
The year Marty got in the club, we made a dozen runs within .1 MPH, changed gears, shift points, tune (jets in those days), no 2 runs were the identical setup, but the result at the end of 5 miles was always the same... almost bracket racing Bonneville.
PM me an address for the shirt unless you plan extra Bonneville bag space.
Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.

Offline Sumner

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Re: Australian Belly Tank
« Reply #4392 on: March 16, 2014, 01:07:05 PM »
Here is some stuff for you to ponder.  I've added a feature to a couple of my spreadsheets that give you speed in gears at different rpm.  That is if you know how much HP it takes to run a certain mph the spreadsheet will tell you the HP needed for all the mph intervals on it.  Since it also shows you the rpm in each gear for those mph intervals you will know from your dyno pulls if you have enough hp to run the mph at that rpm in that gear.

To use it in your case I took your 270 HP figure to run 204 MPh and plugged it into this spreadsheet...



found here...  http://purplesagetradingpost.com/sumner/bvillecar/HP%20Required%20for%20new%20speed%20-%2012-20-13%20-xls.xls

You can take the 32 HP to run 100 mph from that spreadsheet and ...



...plug it into the spreadsheet above where the blue arrows are.  I took a guess at you 1st, 2nd and 3rd gear ratios and tire size but the final 205 mph is close to the rpm's you posted.  If the 3rd gear is close and you shifted at say 180 at 6246 rpm ( I think you shifted at 175 at 6000) you can see that you dropped 1619 rpm on the shift to 4627 and at 180 mph you needed 187 HP (left red arrows).

So if from your dyno pulls you made at least 187 HP at 4627 rpm you should accelerate which you did.  Of course the more you are over 187 HP at 4627 the harder you will accelerate.  So seeing the new rpm in the next gear and being able to look over and see the HP needed there you can make some gearing decisions.
 
Now looking further down the chart...



...we can see that with the 2.14 gears 6300 would be 240 mph and would require 442 HP at that rpm to run that speed.  If you aren't making that HP then a lower gear is going to do better.

The spreadsheet with the HP needed at the speed intervals can be found here...

http://purplesagetradingpost.com/sumner/bvillecar/SS%204%20Speed%20Excel-1.xls

... and if there was interested it could be added to the other car and/or motorcycle spreadsheets also,

Sum

Offline PorkPie

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Re: Australian Belly Tank
« Reply #4393 on: March 16, 2014, 02:30:33 PM »
Reading the spreadsheets from Sum...

I ask me now how I got my 205 mph on my qualifier run with the 1000 cc N/A engine on gas....

Stainless & John Boy...you be my witness....I had no bicycle pedals..... :-D
Pork Pie

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Offline Speed Limit 1000

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Re: Australian Belly Tank
« Reply #4394 on: March 16, 2014, 02:45:58 PM »
It was just the will to go faster by the driver :cheers:
John Gowetski, red hat @ 221.183 MPH MSA Lakester, Bockscar #1000 60 ci normally aspirated w/N20