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Kirkham Motorsports

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  • 1 Post By renovationinnov
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  #1 (permalink)  
Old 04-17-2014, 12:49 AM
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Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
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Default How Phat is your Cobra?

Hi Everyone,

It is something that has bugged me since I finished my Cobra.

I only guessed the weight during Eng/Rego etc.

I was out the other day and went in to a Recycling centre and paid the guy $10 to weigh it.

It was about what I guessed.

1100 Kgs with 50L of Fuel (me not in it)

Mine is a Round Tube CR with Ls1 and underbody exhaust and fake side pipes.

Interested to see what other Cobras weigh.

Cheers

Gregg
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Old 04-17-2014, 01:39 AM
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Cobra Make, Engine: DRB Windsor 302 stroked to 347
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1150kg.
Qtr tank of petrol.
Twin sports exhaust and fake side pipes.
235R15s on rear and 195 front
DRB #41 with windsor engine.
PS I got ripped off - I paid a whole lobster - twice as much!!!

If anyone is interested just find a nearby trucking company and they'll weigh it if you flip them some cash - it only takes a couple minutes to drive on, stop and drive off.
Thanks
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Old 04-17-2014, 03:18 AM
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Join Date: Dec 2011
Location: York Co. Maine USA, ME
Cobra Make, Engine: ERA 427 S/C W/Holmon Moody Original Nascar build #508 Iron Block/heads (C5AE-H) Bal/Blu 427 Sideoiler; 780 Holley Dbl. Pump; 4 Speed Top Loader; AP Racing Bks; IRS; 15" Trigo pins
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The original 427(cid) AC's weighed in at about 2,350 lbs. with 1/2 tank fuel & fluids. My ERA with same set up is 2,605lbs. Thats within 255lbs of original weight. The stronger glass body is worth the weight gain; plus a few extra HP makes up for that with no Prob!
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Old 04-17-2014, 04:18 PM
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Cobra Make, Engine: G-Force Mk I, 5L Windsor, TKO 600, enhanced Jag / Koni suspension & LSD Diff.
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Gregg

You got me curious and looking back through my old info. I found the weighbridge ticket.

Car was pretty bare at that time and not sure of the fuel load but weighed in at 1,240kgs less driver.

Given I'll now have twin heavy roll bars, heavy fake side pipes, a slightly fatter driver, trimming etc etc I can see my car shifting into the upper 1300kg bracket.

But hey I'll take a fat cobra any day under the current circumstances.

Slowy
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Old 04-17-2014, 07:28 PM
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hey Gregg
I got mine the other day on mrd weight bridge it was 1084.60 kg that's whats on the ticket
40litres of fuel & no one on board , roll bars on
live side pipes running to rear,, 295/ 17s rear 245/17 front
all ready to go to mainroads pits [ transport for final inspection
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Old 04-17-2014, 09:05 PM
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The most lightweigt one I had was a RAM with all ally motor. 920kg with water, but no fuel).
And I didn't even spend money on lighweight parts, except the 496cui motor...

Just left everything off!
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Old 04-18-2014, 02:43 AM
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Cobra Make, Engine: Contemporary Classic CCX3021 Keith Craft 428fe
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G'day Gregg, My Cobra was 1140 kg (equates to 2,513 lb) at the weight station. About 1/2 to full tank of fuel I think, can't recall. Has an iron ford fe motor, and magnesium 15in wheels (7.5 f and 9.5 r).

Mike
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Old 04-19-2014, 02:57 AM
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Mine weighed 1100kgs at time of rego on the tips weigh bridge and is now with some add ons and painted 1120kgs after weighing the four corners.
Ross
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Old 04-20-2014, 12:32 AM
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Mine weighed 1090kgs with the old alloy motor.
The cast lump in it will have taken it to around 1120kgs I would think.
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Old 04-20-2014, 01:42 AM
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Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
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Sounds like 1100 is pretty common for the alloy engine variety. My engine was originally out of a VY SS which is about 1600Kgs. So half a ton less to haul. Power to Weight about 0.25 (for me that is). About half way in the top ten:

Best Power-to-Weight Ratio Cars - AskMen

cheers

Gregg
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Old 04-20-2014, 02:20 AM
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1097.5 kg on corner scales with ballast, was quite a bit heavier on the weighbridge from memory.
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Old 04-20-2014, 02:37 AM
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Not specific to Aust car weights, but here's an interesting comparison of components going into an ERA cobra. Weight
(All in pounds obviously)
A saving of 30lbs just in a battery is amazing!

I'm heading off now for another hot cross bun. If I need to throw another 2 degrees of advance into the 427 to maintain the power to weight level, so be it...
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Old 04-20-2014, 12:58 PM
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Cobra Make, Engine: FFR 289 FIA 347 Stroker
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Hi. My FFR 289 is 2250 LB.

That is with full tank of fuel, I have a 24 gallon fuel cell. That is also with heavy GY GT II tires, I have GY BillBoards that are much lighter when I track her.

Please don't ask the weight when the pilot is sitting her!!!!!

Cheers

Auvergne from Chandler
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Old 04-21-2014, 07:23 PM
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Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
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My square tube CR was 1100kg with me in it, half tank of fuel.
Was bum heavy by about 50kg
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Old 04-21-2014, 07:27 PM
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Quote:
Originally Posted by boxhead View Post
Was bum heavy by about 50kg
Was that the car or the driver sitting in it?
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Old 04-21-2014, 07:29 PM
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I dare say both.
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