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04-04-2011, 05:51 PM
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CC Member
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Join Date: Mar 2008
Location: Gold Coast,
QLD
Cobra Make, Engine: Harrison #69, HSV LS2, T56, Custom rear suspension
Posts: 604
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Not Ranked
Weigh in
Due to circumstances I wasn't present during the registration process of my Cobra, hence I didn't know what it actually weighed as QT don't include this data on the rego.
So I wandered down to the local weighbridge yesterday where the guys were only too happy to oblige:
1140kg total with full fuel (70 litres say 52kg [0.75kg/l])
540kg front
620kg rear
Was a bit surprised that the rear was heavier. Might weigh again with less fuel and see how the split changes as the tank is beyond the rear axle line.
Cheers
__________________
Geoff
Cobra Car Club of Qld - UAE Chapter
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04-04-2011, 06:42 PM
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CC Member
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Join Date: Jul 2009
Location: Redland Bay,
QLD
Cobra Make, Engine: Harrison #100 under construction
Posts: 1,109
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Not Ranked
Geoff, what rear axle are you running ?
Rog
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Rog 246
Harrison #100
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04-04-2011, 06:49 PM
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CC Member
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Join Date: Aug 2008
Cobra Make, Engine:
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Yeah Harrisons are usually 50/50 with an iron block V8 up front.... Alloy engines are obviously lighter..... My DRB is the same, 1285kg with me in it and half a tank of fuel, 642 front and rear... No alloy engine..
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04-04-2011, 07:10 PM
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CC Member
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Join Date: Mar 2008
Location: Gold Coast,
QLD
Cobra Make, Engine: Harrison #69, HSV LS2, T56, Custom rear suspension
Posts: 604
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Not Ranked
Quote:
Originally Posted by Rog246
Geoff, what rear axle are you running ?
Rog
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Rog,
Commodore IRS mechanicals with fabricated arms and uprights.
Cheers
__________________
Geoff
Cobra Car Club of Qld - UAE Chapter
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04-04-2011, 07:52 PM
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CC Member
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Join Date: Mar 2008
Location: Gold Coast,
QLD
Cobra Make, Engine: Harrison #69, HSV LS2, T56, Custom rear suspension
Posts: 604
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Quote:
Originally Posted by Towmaster
Yeah Harrisons are usually 50/50 with an iron block V8 up front.... Alloy engines are obviously lighter..... My DRB is the same, 1285kg with me in it and half a tank of fuel, 642 front and rear... No alloy engine..
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Good info Ash, thanks.
Based on my favourite scales  my svelte like figure would bring the max up to 1235kg.
Cheers
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Geoff
Cobra Car Club of Qld - UAE Chapter
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04-04-2011, 08:07 PM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
Here is a list of WA based cars and their weight for comparison.
Mostly all with iron blocks.
Don't know if the weights include the driver though.
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It's impossible to soar like an eagle when you're surrounded by turkeys.
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04-04-2011, 08:15 PM
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CC Member
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Join Date: Mar 2008
Location: Gold Coast,
QLD
Cobra Make, Engine: Harrison #69, HSV LS2, T56, Custom rear suspension
Posts: 604
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Interesting...only 3 of 14 are nose heavy. One is running a LS engine perhaps others have aftermarket alloy blocks.
Cheers
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Geoff
Cobra Car Club of Qld - UAE Chapter
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04-04-2011, 08:23 PM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Nope, all iron far as I know. 
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It's impossible to soar like an eagle when you're surrounded by turkeys.
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04-04-2011, 08:32 PM
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CC Member
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Join Date: Jul 2009
Location: Redland Bay,
QLD
Cobra Make, Engine: Harrison #100 under construction
Posts: 1,109
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Well it'll get interesting with my Harrison when I finally get it done. Them 5.4 iron block Fords ain't light, and they sure are big Mother's ! I think it is actually wider than a FE block
But hey like some say 'them with only 1 cam are so miserable-they wouldn't shout if a shark bit'em ' 
That said $1300 odd is a bit to pay for a bits steel with lumps on 'em.
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Rog 246
Harrison #100
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04-04-2011, 08:38 PM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
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Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Quote:
Originally Posted by Rog246
Well it'll get interesting with my Harrison when I finally get it done. Them 5.4 iron block Fords ain't light, and they sure are big Mother's ! I think it is actually wider than a FE block
But hey like some say 'them with only 1 cam are so miserable-they wouldn't shout if a shark bit'em '
That said $1300 odd is a bit to pay for a bits steel with lumps on 'em. |
They're big mothers's allrighty.
I'm told most blokes runnin em put their rear wheels on the front and the skinny ones on the back. 
Then fill the front tyres with helium. 
They sorta go alright then.
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
Last edited by Rebel1; 04-04-2011 at 08:51 PM..
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04-04-2011, 08:44 PM
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CC Member
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Join Date: Mar 2008
Location: Gold Coast,
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Cobra Make, Engine: Harrison #69, HSV LS2, T56, Custom rear suspension
Posts: 604
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Quote:
Originally Posted by Rebel1
Nope, all iron far as I know. |
Curiouser and curiouser.... 
Cheers
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Geoff
Cobra Car Club of Qld - UAE Chapter
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04-04-2011, 09:54 PM
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CC Member
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Join Date: Jul 2009
Location: Redland Bay,
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Cobra Make, Engine: Harrison #100 under construction
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Quote:
Originally Posted by Rebel1
They're big mothers's allrighty.
I'm told most blokes runnin em put their rear wheels on the front and the skinny ones on the back.
Then fill the front tyres with helium.
They sorta go alright then. |
already saving the shiekls for an alloy block, should save about 45kg's across the front axle apparently.
as far as size goes I reckon I got bragging rights with ' mine's bigger'er than yours mate
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Rog 246
Harrison #100
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04-04-2011, 10:50 PM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Quote:
Originally Posted by Rog246
already saving the shiekls for an alloy block, should save about 45kg's across the front axle apparently.
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Save ya money, they go real hard as it is. Remember a lot of the original cars had a bluddy great heavy 427so in em.
Quote:
Originally Posted by Rog246
as far as size goes I reckon I got bragging rights with ' mine's bigger'er than yours mate |
Damn, you been chattin to my first wife?. She reckons if mine was 2" shorter I'd have a 1" hole in my gut. 
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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04-04-2011, 11:14 PM
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CC Member
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Join Date: Jul 2009
Location: Redland Bay,
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Cobra Make, Engine: Harrison #100 under construction
Posts: 1,109
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Quote:
Originally Posted by Rebel1
Save ya money, they go real hard as it is. Remember a lot of the original cars had a bluddy great heavy 427so in em.
Damn, you been chattin to my first wife?. She reckons if mine was 2" shorter I'd have a 1" hole in my gut. |
Why would you want to shorten your car by 2" ? Ohh....!!
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Rog 246
Harrison #100
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04-05-2011, 12:18 AM
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CC Member
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Join Date: Jan 2004
Location: Gold Coast,
AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
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Quote:
Originally Posted by Rog246
already saving the shiekls for an alloy block, should save about 45kg's across the front axle apparently.
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45kg is a signficant saving, goes to show how large that block is.
On a 427FE it is only around a 27kg saving. I looked at the weight saving between an iron 427 & an alloy 427 block, both engines with alloy heads.
Just did a quick google search:
329kg for 429/460 & 351 Clevelands could be more. I assume iron heads.
236kg for an iron 427FE with alloy heads. 209kg with alloy block.
193kg 302w with alloy heads.
189kg for an LS3.
Interesting. |
04-05-2011, 01:12 AM
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CC Member
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Join Date: Nov 2008
Location: Brisbane Australia. Cobra:Arntz Chev 454,
Posts: 847
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Weighed mine last week -- 644 front, 732 rear with me (105) on board and half a tank of fuel. So that's 1376 kgs under normal running conditions. We're no lightweights but we're comfortable!
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Don.
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04-05-2011, 01:13 AM
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CC Member
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Join Date: Jul 2009
Location: Redland Bay,
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Cobra Make, Engine: Harrison #100 under construction
Posts: 1,109
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Craig will probably make up the difference with a blower at some stage - or not. But 45 kgs means I don't have to diet as hard as I might 
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Rog 246
Harrison #100
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04-05-2011, 01:15 AM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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45KG difference going from Iron to Aluminum??!! I didn't think it would be as much as that. Must be a heavy wall high nickle content on their Iron blocks.
There's probably cheaper and easier ways to remove weight. Probably easier to just add HP.
My CR weighed in at 1060KG at rego with a half tank of fuel. Not sure on the front rear split. I got it through rego with no windscreen so probably saved a few KG there with out all the stuff that goes with it i.e wipers, heater etc.
It's got a windscreen and wipers now but I've removed a heap of weight from the rear by making tubular rear arms. It'll be interesting to see what it weighs again when it's all done.
Cheers
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Mike Murphy
Melbourne Australia
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04-05-2011, 01:23 AM
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CC Member
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Join Date: Nov 2008
Location: Brisbane Australia. Cobra:Arntz Chev 454,
Posts: 847
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Quote:
Originally Posted by Aussie Mike
There's probably cheaper and easier ways to remove weight. Probably easier to just add HP.
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Ahhh...the 750HP school of thought. 
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Don.
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04-05-2011, 01:29 AM
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CC Member
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Join Date: Jun 2007
Location: Sunshine Coast Qld,
QLD
Cobra Make, Engine: Harrison # 80; Ford 5.0L HO Trickflow heads, cam and rockers and MassFlow EFI
Posts: 3,482
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Not Ranked
Quote:
Originally Posted by 400TT
45kg is a signficant saving, goes to show how large that block is.
On a 427FE it is only around a 27kg saving. I looked at the weight saving between an iron 427 & an alloy 427 block, both engines with alloy heads.
Just did a quick google search:
329kg for 429/460 & 351 Clevelands could be more. I assume iron heads.
236kg for an iron 427FE with alloy heads. 209kg with alloy block.
193kg 302w with alloy heads.
189kg for an LS3.
Interesting.
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The last two figures are interesting from my point of view - only 4kgs. Any data on the Ford Coyote weight?
__________________
Merv
Ford Cobra
Harrison #80.
Peregian Beach
Sunshine Coast Qld.
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