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Location:
London
Registered:
July 2004
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Re: 4cyl Vs 6 cyl (same displacement)
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Sun, 26 December 2004 11:26
 
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| no_tofu_speed wrote on Sun, 26 December 2004 20:50 |
More cylinders = more revvy?
Hmmmm a V block with 8 cylinders isnt very revvy, and some 4age variants love to rev.......
Confused....
Hmm can anyone answer my Q on acceleration please, and how to measure.
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Ok, you're being very obtuse here. I presume you're refering to big Holden/Ford V8s. These engines have capacities in excess of 5 litres (big and heavy pistons,valves,etc), and the POS in the Holden uses pushrods. These motors are therefore not inclined to rev.
Catheram have just produced a prototype 2 litre V8, made using Yamaha motorbike heads. It makes 340bhp at 10,250 rpm and 190lb ft from 7000 - 7800 rpm. It can rev to 15,000 rpm but they decided that 340bbhp was enough.
Now, this is a lot of power (170 bhp per litre, compared to a 3sge's 70 bhp per litre), but it's produced at very high revs. You couldn't simply put this V8 into a car the size of a celica and expect it to be practical - you'd have to rev it's tits off to get anywhere.
Catheram can get away with it 'cos their car is very light and doesn't require a lot of bottom end torque to get it moving.
The 3sge doesn't produce the same amount of power, but it makes a lot more torque where it counts for lugging around a 1000+ kg car.
What a rant. Am I way off topic? Too much beer.
P.S.
Can you clarify acceleration q?
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| | Subject | Poster | Date |
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4cyl Vs 6 cyl (same displacement)
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no_tofu_speed | Sun, 26 December 2004 03:02 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Jag7799 | Sun, 26 December 2004 05:31 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Intensevil | Sun, 26 December 2004 06:17 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Jag7799 | Sun, 26 December 2004 06:22 |
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Re: 4cyl Vs 6 cyl (same displacement)
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LEX-80Y | Sun, 26 December 2004 06:27 |
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Re: 4cyl Vs 6 cyl (same displacement)
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TRD_Supra | Sun, 26 December 2004 06:54 |
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Re: 4cyl Vs 6 cyl (same displacement)
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BIG guy | Sun, 26 December 2004 06:59 |
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Re: 4cyl Vs 6 cyl (same displacement)
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TRD_Supra | Sun, 26 December 2004 07:01 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Jag7799 | Sun, 26 December 2004 07:45 |
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Re: 4cyl Vs 6 cyl (same displacement)
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thechuckster | Sun, 26 December 2004 08:07 |
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Re: 4cyl Vs 6 cyl (same displacement)
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spirokeet | Sun, 26 December 2004 09:27 |
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Re: 4cyl Vs 6 cyl (same displacement)
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wilbo666 | Sun, 26 December 2004 09:27 |
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Re: 4cyl Vs 6 cyl (same displacement)
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no_tofu_speed | Sun, 26 December 2004 09:50 |
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Re: 4cyl Vs 6 cyl (same displacement)
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spirokeet | Sun, 26 December 2004 11:26 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Moonbreaker | Sun, 26 December 2004 10:12 |
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Re: 4cyl Vs 6 cyl (same displacement)
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brett_celicacoupe | Sun, 26 December 2004 11:22 |
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Re: 4cyl Vs 6 cyl (same displacement)
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b1gb3n | Sun, 26 December 2004 11:55 |
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Re: 4cyl Vs 6 cyl (same displacement)
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brett_celicacoupe | Sun, 26 December 2004 12:22 |
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Re: 4cyl Vs 6 cyl (same displacement)
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no_tofu_speed | Sun, 26 December 2004 12:08 |
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Re: 4cyl Vs 6 cyl (same displacement)
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no_tofu_speed | Sun, 26 December 2004 13:58 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Intensevil | Sun, 26 December 2004 15:08 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Shraka | Sun, 26 December 2004 17:34 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Bill Sherwood | Sun, 26 December 2004 18:13 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Chris Davey | Sun, 26 December 2004 21:55 |
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Re: 4cyl Vs 6 cyl (same displacement)
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LEX-80Y | Sun, 26 December 2004 22:04 |
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Re: 4cyl Vs 6 cyl (same displacement)
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BIG guy | Mon, 27 December 2004 13:44 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Shraka | Tue, 28 December 2004 03:33 |
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Re: 4cyl Vs 6 cyl (same displacement)
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Corona RT142 | Tue, 28 December 2004 04:20 |
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Re: 4cyl Vs 6 cyl (same displacement)
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mick | Wed, 29 December 2004 12:24 |
