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  #61  
Old 05-28-2009, 03:34 PM
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"racing" ... in competition then engines pretty much return the same consumption whether it's racing or rallying.
The reason is it's mainly wide open throttle and hard acceleration.
The engineering in the "ancient Mini" is copied TODAY !
And the Escort Twin CAm engine is not a million miles away from again modern efficiencies ( taking fuelling otu of the equation as modern injection and emissions control makes a difference )
So the "Logic" is fine .. just the "practical experience" you still have to pick up.

PS: I've not flip-flopped. YOU only said f'ing "displacement" and only when challenged/explored do you now claim always knowing the other 2. Thank you google
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  #62  
Old 05-29-2009, 07:21 AM
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Quote:
Originally Posted by Matra et Alpine View Post
"racing" ... in competition then engines pretty much return the same consumption whether it's racing or rallying.
No.. not really it all depends on the track and driving style. I don't think you could get any of the cars you mentioned to give comparable mileage when raced on say a flat tarmac track and a mountain rally with lots of elevation change. If it's compared on the same track then thats all good... almost

Quote:
Originally Posted by Matra
The engineering in the "ancient Mini" is copied TODAY
So what? it isn't nearly as efficient as the majority of modern engines and it is in an incomparable car (too small and light)

Quote:
Originally Posted by Matra
And the Escort Twin CAm engine is not a million miles away from again modern efficiencies
Again so what? not being a million miles away does not equal close enough to make a fair comparison.

Quote:
Originally Posted by Matra
So the "Logic" is fine .. just the "practical experience" you still have to pick up.
The logic of your comparison is not even close... How about the two examples I posted showing the the RX-8 actually has the fuel consumption of a 3.9L+ engine? Anything wrong with that comparison?

Quote:
Originally Posted by Matra
I've not flip-flopped. YOU only said f'ing "displacement" and only when challenged/explored do you now claim always knowing the other 2. Thank you google
What do you mean "Thank you google"? The 1.3L value is common knowledge as that is what Mazda rates it at and the 2.6L is the equivalency factor used in racing (and sometimes for tax purposes). The question was never if I knew about the other two displacements, the question was did you know about the largest one, and it turns out that you didn't as your initial remark stated... that the R26B was NOT a 7.9L engine at all.
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  #63  
Old 05-29-2009, 07:59 AM
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Matra et Alpine Matra et Alpine is offline
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ht, you're twisting

Keep the cap on the petrol can


Bad logic taking that I pointed out that it's NOT valid to measure standard "displacement" as the highest number. I know the number .... YOU didn't expres any understanding of the reasons, whys and wherefores of the others till later ... MUCH later So I'l sorry if only when I named the thermo that you then named the other two. Apologise for my suspicious nature, but track record suggest it

ht, see my "practicality" comment .... You CAN compare worst case mileage mpg over a wide range of tracks and surfaces and build comparisons. If you coulnd't then I'd not have been left to co-drive for as long as I did by the drivers... It's the co-drivers responsibility to manage fuel. WE get to know very well. AND my "experience! is with ME driving or with me navigating for known drivers. Yes you get differences, but I'd isolated that one. Your grasping at a straw there. Accept practical rather than continuing to be hung up on the theory/math.

Equally on track. I suspect you're confusing laps with miles ? and allowing enough "miles" for it to statistically "valied" ... no point saying 20 miles at Isle of Man where that's not even one lap !

hmm if it's so-called "innefficient" then why AS I SAID is it copied tso much ?
And the reason is tuning the MIni was at it's peak back then including fitting crossflow heads to imrpvoe the flow. Perhaps you shoudl look up on the Ford engine ... the block is STILL being manufactured today by CNC for racing !
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  #64  
Old 05-29-2009, 08:39 AM
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Anyway...getting back on topic.


Ariel Atom V8
Attached Images
File Type: jpg arielV8.jpg (89.6 KB, 15 views)
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  #65  
Old 05-29-2009, 10:47 AM
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^^ The RST-V8 ... used in the Atom and in Caterham Levante

380bhp in naturally aspirated form at a screaming 10,000rpm or 550bhp when supercharged. Torque figures are 190lb/ft and 300lb/ft respectively while the engine with ancillaries weighs just 90kg

Just one of a gaggle of bikes based lightweight, high power V8s developed in British engineering companies in the last 10 years. Gotta love 'em
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  #66  
Old 05-29-2009, 12:17 PM
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Have none of you noticed anything unusual about the engine in my post #16 ?!?!
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  #67  
Old 05-29-2009, 03:09 PM
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well it looked odd to me nota
like there's double the amount of exhaust manifolds?
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  #68  
Old 05-29-2009, 03:12 PM
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Matra et Alpine Matra et Alpine is offline
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and inlets
So is it a W engine or just an odd airflow setup ?
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  #69  
Old 05-29-2009, 03:17 PM
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I thought it could be a W too, but it seems pretty small and narrow.
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  #70  
Old 05-29-2009, 03:22 PM
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^ agreed, but don't know of any straight 8 heads that laternated inlest/exhaust.
We need to know wht ath engine is ..... PLEASE
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  #71  
Old 05-29-2009, 04:03 PM
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Quote:
Originally Posted by Matra et Alpine View Post
^^ The RST-V8 ... used in the Atom and in Caterham Levante

380bhp in naturally aspirated form at a screaming 10,000rpm or 550bhp when supercharged. Torque figures are 190lb/ft and 300lb/ft respectively while the engine with ancillaries weighs just 90kg

Just one of a gaggle of bikes based lightweight, high power V8s developed in British engineering companies in the last 10 years. Gotta love 'em
peter,

My engine builders old man is in the final stages of getting his compact V8 block milled, its a billet block and will be running kawasaki heads , they flow better than the busa heads apparently. Next time Im up there I will get some pics of it, This is one of his creations, Lotus Clubbie on roids , sr20det-620bhp on 98ron 10% toulene although it will be tuned for e85, Mazda RX7 Ser 6 running gear and built for 30 grand aus

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  #72  
Old 05-30-2009, 03:31 AM
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i always wondered about clubmans - it seems for some engines you'd never fit a big enough radiator in the front
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  #73  
Old 05-30-2009, 05:28 AM
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Matra et Alpine Matra et Alpine is offline
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I amliking the front wing attachmetn
What pistons, conrod and crank is he using ?
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  #74  
Old 05-30-2009, 07:37 AM
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Quote:
Originally Posted by clutch-monkey View Post
well it looked odd to me nota
like there's double the amount of exhaust manifolds?
Quote:
and inlets
So is it a W engine or just an odd airflow setup ?
Quote:
I thought it could be a W too, but it seems pretty small and narrow.
Quote:
^ agreed, but don't know of any straight 8 heads that laternated inlest/exhaust.
We need to know wht ath engine is ..... PLEASE


Its the 'radial head' Repco-Brabham V8 engine featuring the Type 750 4-valve cylinder heads, circa 1968

4 camshafts / 4 intake manifolds / 4 exhaust mainfolds
32 diagonal tangentially ported inlet and exhaust valves resulting in 16 inlet trumpets and 16 exhaust pipes



It was an un-raced F1 test engine (one-of-one) and btw its likely those images have only recently been made public, via another forum
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  #75  
Old 05-30-2009, 07:53 AM
fpv_gtho fpv_gtho is offline
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Quote:
Originally Posted by Matra et Alpine View Post
I amliking the front wing attachmetn :
My armchair aerodynamics degree makes me think the wing elements would work better the other way around though. Still looks pretty neat, ive never seen anything like that attempted with a Clubman.
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