Sumernats Horsepower Hero

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BOB ELLIS
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Post by BOB ELLIS » Tue Feb 19, 2008 5:39 am

Well done Doc! I feel better now. 12 months? I think it will be a loooong year waiting to go racing again. Hopefully the airstrip deal we're working on comes off.Even a short run is better than no run , and with alot of purpose built vehicles up here (and more being built), we need something! Cheers , Bob. #66 C/GCC.

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Brootal
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Post by Brootal » Sun Feb 24, 2008 3:46 pm

I think there may be some confusion here about who we are talking about.

The car that won Horsepower Heroes at Summernats 21 was Craig Munro's Commodore sedan, the guy that came second (in the blown small-block class) was Rob Vickery with a Commodore ute. Both of these cars were set up by the Horsepower Factory.

The car that made the most horsepower was Gus Nichol's twin-turbo big-block WB ute that had 1939hp on the dyno before the tailshaft let go in a BIG WAY and made a rather large mess. Because he couldn't complete the two runs required for an average, he couldn't win overall.

Would be interesting to put any of those motors into a car that is set up for salt lake racing, although the amount of specialised work that goes into them to make them perform on a dyno is a separate field unto itself and requires a fair bit of cleverness.
When I grow up I want to be a Land Speed Racer!

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ben james
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Post by ben james » Sun Feb 24, 2008 4:27 pm

i still don't get it
ben james dlra#389
moriwaki monster.

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Brootal
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Post by Brootal » Sun Feb 24, 2008 9:17 pm

ben james wrote:i still don't get it


Me neither.

Ain't no dyno like the BIG WHITE DYNO! :)
When I grow up I want to be a Land Speed Racer!

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nitro-nige
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Post by nitro-nige » Sun Apr 13, 2008 4:37 pm

Brootal wrote:Would be interesting to put any of those motors into a car that is set up for salt lake racing, although the amount of specialised work that goes into them to make them perform on a dyno is a separate field unto itself and requires a fair bit of cleverness.


I agree it would be interesting. I'd like to see if they could make it past the first mile mark. Considering they only run full boost for a couple of seconds on a dyno, and even then struggle to hold it together. Top fuel dragsters make plenty of power and pull big speeds (for 4 1/2 seconds!)
This is all assuming the can get any traction.

bobthebike
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Post by bobthebike » Sun Apr 13, 2008 8:49 pm

nitro-nige wrote:
Brootal wrote:Would be interesting to put any of those motors into a car that is set up for salt lake racing, although the amount of specialised work that goes into them to make them perform on a dyno is a separate field unto itself and requires a fair bit of cleverness.


I agree it would be interesting. I'd like to see if they could make it past the first mile mark. Considering they only run full boost for a couple of seconds on a dyno, and even then struggle to hold it together. Top fuel dragsters make plenty of power and pull big speeds (for 4 1/2 seconds!)
This is all assuming the can get any traction.
my son's last dyno session with his 13b rota (engine dyno) produced 1080hp @ 9000 rpm & was on boost for 404 minutes. bob

grumm441
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Post by grumm441 » Sun Apr 13, 2008 10:56 pm

Quoting Bob

Quoting Bob
my son's last dyno session with his 13b rota (engine dyno) produced 1080hp @ 9000 rpm & was on boost for 404 minutes.


I hope Dave (rx7) isn't reading this
They make it
I make it work

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Lynchy
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Post by Lynchy » Mon Apr 14, 2008 9:42 am

my son's last dyno session with his 13b rota (engine dyno) produced 1080hp @ 9000 rpm & was on boost for 404 minutes. bob


That works out at 6 3/4 hours. Did they go down to the pub for lunch and forget it was running?

bobthebike
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Post by bobthebike » Mon Apr 14, 2008 1:24 pm

Lynchy wrote:
my son's last dyno session with his 13b rota (engine dyno) produced 1080hp @ 9000 rpm & was on boost for 404 minutes. bob


That works out at 6 3/4 hours. Did they go down to the pub for lunch and forget it was running?

engine was on the dyno for 3 days ,same block but many combinations of turbo ,plenium ,exhaust ,ignition. engine was still running at sessions end dispite an attempt to run 60 psi boost for a final run, intake temp aborted run. bob

penny
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top fuellers

Post by penny » Mon Apr 14, 2008 8:49 pm

nitro-nige have you ever worked out how many times a fuel motor turns for a run i think it is around 470.as an asside friend who worked at chryslers in the charger development days would lock open the 6 pack throttle on a friday afternoon and hit the starter they had timers to tell them monday to tell them when it had stopped

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w3stie
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Post by w3stie » Mon Apr 14, 2008 10:20 pm

engine was on the dyno for 3 days ,same block but many combinations of turbo ,plenium ,exhaust ,ignition. engine was still running at sessions end dispite an attempt to run 60 psi boost for a final run, intake temp aborted run. bob

No offence bob, but I'm filing this under 'deeply suspicious' . Have you got dyno charts you can post?

bobthebike
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Post by bobthebike » Mon Apr 14, 2008 10:50 pm

w3stie wrote:
engine was on the dyno for 3 days ,same block but many combinations of turbo ,plenium ,exhaust ,ignition. engine was still running at sessions end dispite an attempt to run 60 psi boost for a final run, intake temp aborted run. bob

No offence bob, but I'm filing this under 'deeply suspicious' . Have you got dyno charts you can post?
no bob

nitro-nige
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Re: top fuellers

Post by nitro-nige » Tue Apr 15, 2008 10:35 pm

penny wrote:nitro-nige have you ever worked out how many times a fuel motor turns for a run i think it is around 470.


That's what I was getting at. Making lots of power is easy compared to making a very powerful engine last at full noise for a long time. We were discussing ski boat motors at the weekend and how hard a time they have.
Besides lots of horsepower doesn't necessarily make a fast race car no matter where you race.

bobthebike
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Post by bobthebike » Wed Apr 16, 2008 9:43 pm

bobthebike wrote:
w3stie wrote:
engine was on the dyno for 3 days ,same block but many combinations of turbo ,plenium ,exhaust ,ignition. engine was still running at sessions end dispite an attempt to run 60 psi boost for a final run, intake temp aborted run. bob

No offence bob, but I'm filing this under 'deeply suspicious' . Have you got dyno charts you can post?
no bob
w3estie, obtained 2 sheets , were harder to get than national secrets from asio, not 1080hp but 1065hp & 1000+ @ 7750 RPM.i don't know how to post them so send me your email address & i'll send them to you. bobthebike@bigpond.com bob.

momec
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Post by momec » Mon Apr 21, 2008 9:36 pm

I understand what your saying bobbikebloke,(err lets make it bbb.)

Dynoing at work we record engine revs and an average bed in and map for a known combo is 250 to300,000 revolutions.
An R&D mule can easily chew up 1,000,000 revs. Put in prespective Bathurst is about 2,600,000revs.
This relates to running time on the dyno which is not always under full load.
Chris
Acme Racing #251

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