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February 2025
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CC Advertisers
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09-03-2007, 09:51 PM
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CC Member
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Join Date: Feb 2006
Location: The Hills,
NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
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Not Ranked
Sydney Dyno Day
On Sunday I went with Greg (Ls1 AC Cobra) to the Dyno day that was on over at Arncliffe. Pleanty of nice Vettes, Camaros and Mustangs.
Only one Cobra hit the dyno, Dennis's red one pulled 360 rwhp with a bad tune.
An impala with a stock 454 pulled 180 rwhp. Highest of the day was a stock Z06 that got 427 rwhp! 
Greg did not enter his very tidy CR, but probably would have got third with his almost stock LS1. 
Ben |
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09-04-2007, 01:02 AM
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CC Member
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Join Date: Jun 2004
Location: Sydney,
NSW
Cobra Make, Engine: Robnell BB 429 (Sold) Contemporary Cobra CCX3682
Posts: 407
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Not Ranked
Thank god I didn't go! Some great results!
Stef
__________________
Life really is beautiful!
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09-04-2007, 01:45 AM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
Ohhhh I love the yellow Camaro.
__________________
Cruising in 5th
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Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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09-04-2007, 04:32 AM
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CC Member
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Join Date: Jan 2007
Location: Sydney,
NSW
Cobra Make, Engine: DRB. Engine out :)
Posts: 517
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Not Ranked
Quote:
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Originally Posted by stefanog
Thank god I didn't go! Some great results!
Stef
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You'd be surprised buddy dont underestimate that big block,
maybe you should have gone !
__________________
"I'd open my mind, but I don't want the stupid to corrupt it." 
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09-05-2007, 05:00 AM
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CC Member
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Join Date: Feb 2006
Location: The Hills,
NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
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Not Ranked
I stand corrected.
Evidently the shop owner put his Vette on the rollers later and pulled 450 rwhp or so with his 454!
Ben
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09-05-2007, 05:41 AM
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CC Member
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Join Date: Jan 2007
Location: Sydney,
NSW
Cobra Make, Engine: DRB. Engine out :)
Posts: 517
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Not Ranked
hey ben, that blue one in the pic, how much hp did it have
__________________
"I'd open my mind, but I don't want the stupid to corrupt it."
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09-05-2007, 06:31 AM
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CC Member
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Join Date: Aug 2001
Location: Melbourne,
vic
Cobra Make, Engine: DRB COBRA, 302W, GT40 manifold, E303 cam, Trickflow alloy heads, supra gearbox, LSD, commodore brakes, Autronic computer. The car was modified by Doug Pearce
Posts: 209
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Not Ranked
nice looking cobras especially the grey one.
l quick question, what the name of the colour of the grey one?????
Love the shade of grey
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09-05-2007, 07:11 AM
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CC Member
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Join Date: Aug 2007
Location: Sydney,
nsw
Cobra Make, Engine: Classic Revival ls1 supercharged 6 speed
Posts: 35
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Not Ranked
The shade is titanium grey and thanks.
Cheers from Greg
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09-05-2007, 07:30 AM
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CC Member
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Join Date: Aug 2001
Location: Melbourne,
vic
Cobra Make, Engine: DRB COBRA, 302W, GT40 manifold, E303 cam, Trickflow alloy heads, supra gearbox, LSD, commodore brakes, Autronic computer. The car was modified by Doug Pearce
Posts: 209
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Not Ranked
love your pics .
What car is it off.
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09-05-2007, 09:02 AM
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CC Member
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Join Date: Aug 2007
Location: Sydney,
nsw
Cobra Make, Engine: Classic Revival ls1 supercharged 6 speed
Posts: 35
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Not Ranked
It is a mazda colour.
Cheers from Greg
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09-05-2007, 04:16 PM
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CC Member
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Join Date: Feb 2006
Location: The Hills,
NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
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Not Ranked
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09-06-2007, 03:45 AM
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CC Member
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Join Date: Feb 2006
Location: Perth,
WA
Cobra Make, Engine: G-Force kit, LS1, 4L60, 4.09 LSD... Gone to Queensland!!!
Posts: 588
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Not Ranked
From the graphs:
Dennis's Cobra is running dangerously lean at the top-end!
The Z06 has at least 20 - 30 HP up it's sleeve with those mid 11 AFR's
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09-06-2007, 06:55 AM
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CC Member
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Join Date: Feb 2006
Location: The Hills,
NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
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Not Ranked
Sounds about right Plums.
The car was booked in for some carby work to fix it before the nationals.
It was a fresh 408 stroker.
Ben
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09-07-2007, 03:38 AM
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CC Member
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Join Date: Jan 2005
Location: Geelong, Vic, Aus,
VIC
Cobra Make, Engine: The one leaving fat black marks
Posts: 240
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Not Ranked
Quote:
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Originally Posted by Plums
The Z06 has at least 20 - 30 HP up it's sleeve with those mid 11 AFR's
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Imagine one of those engines in a Cobra with individual throttle bodies... |
09-07-2007, 04:58 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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Not Ranked
You won't need to imagine it for long. I know of a blue and white Cobra getting that combination installed soon.
Cheers
__________________
Mike Murphy
Melbourne Australia
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09-07-2007, 06:50 PM
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CC Member
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Join Date: Oct 2006
Location: Sydney,
nsw
Cobra Make, Engine: CR 3205
Posts: 161
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Not Ranked
Ben , Steve the guy that runs the shop over here is the same guy that did my F100.
He is a very nice guy , but know how to charge.
By the way Sonny did a L76 with only a cam and got 315 RWKW. (422 rwhp)
Sorry Ford boys but thats some good power from very little cash.
I cant wait for my one to arrive this week.
All i need to do now is keep the bloody thing on the road and in a straight line.
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09-07-2007, 07:00 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
Slowy, you're putting in a L76?.
Be great to get your opinion as to the difference between your old engine and the L76.
If there is any difference that is.
Cheers
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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09-08-2007, 04:06 AM
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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
Quote:
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Originally Posted by slow 427
By the way Sonny did a L76 with only a cam and got 315 RWKW. (422 rwhp)
Sorry Ford boys but thats some good power from very little cash.
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And that "little cash" just got less. As posted on the L76 ebay thread, Holmart have the L76 for $4500 inc GST.
That is just an amazing price for a 6Ltr, all alloy engine with excellent heads.
That $2000.00 reduction will go a long way to a better cam and springs.
Even if these $4500.00 Engines were " a little loose" they sure would be a great starting point for a nice stroker and let's say 500hp.
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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09-08-2007, 04:48 AM
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CC Member
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Join Date: Feb 2006
Location: The Hills,
NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
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Not Ranked
Paul,
I was pretty impressed with those guys, they warmed the cars up well, checked oil etc before a power run.
When it comes down to LS engines I think it comes down to Sam's, Marrano's and Castle Hill Exhaust.
Ben |
09-08-2007, 04:02 PM
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CC Member
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Join Date: Jan 2004
Location: Queanbeyan,
NSW
Cobra Make, Engine: AP 289 USRRC #98 The Ken Miles Tribute Car
Posts: 1,134
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Not Ranked
Hey Slow
Didn't you put it into a tree with the ls1,what are we going to read about this time with the L76?
Cheers
Brett
Last edited by BJ's Snake; 09-08-2007 at 04:06 PM..
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