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Old 09-29-2005, 01:46 AM   #31
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5 valves per cylinder? Odd.
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Old 09-29-2005, 01:52 AM   #32
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Ok Im slow, why is that odd?
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Old 09-29-2005, 02:00 AM   #33
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Because it is normally 4
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Old 09-29-2005, 02:02 AM   #34
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Originally Posted by Spencer
Ok Im slow, why is that odd?
Because it's an odd number. When you've got intake and exhaust valves, an odd number means they must have different numbers. Eg: 2 for intake and 3 for exhaust.
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Old 09-29-2005, 02:03 AM   #35
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Why is it odd though, aren't all Porsches like that? And Volkswagen owns Porsche...so it's common for those cars, right?
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Old 09-29-2005, 02:06 AM   #36
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Doesn't the I-VTEC have 4 valves per cylinder and the VTEC has 2?
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Old 09-29-2005, 02:13 AM   #37
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So it doesnt seem like problems would arise from having an extra valve. You guys scared me for a second.
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Old 09-29-2005, 02:15 AM   #38
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So it doesnt seem like problems would arise from having an extra valve. You guys scared me for a second.
I would think it'd be better
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Old 09-29-2005, 02:27 AM   #39
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Well you never know, too much intake and too less exhaust doesnt sound good to me.
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Old 09-29-2005, 02:28 AM   #40
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Well you never know, too much intake and too less exhaust doesnt sound good to me.
It would be a lot better if there were 3 for the intake because the engine does need its air to run peak performance, but it also needs to shit it out
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Old 09-29-2005, 03:05 AM   #41
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Ahhh! btw it has 6 cup holders if anyone cares to know.
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Old 09-29-2005, 05:09 AM   #42
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Quote:
Originally Posted by 99integra
It would be a lot better if there were 3 for the intake because the engine does need its air to run peak performance, but it also needs to shit it out
I would have said the other way around ....

Whatever comes in, must go out ... so the same mass of material (gas) must go through both sets of valves. After combustion, the gas would be hotter, thus occupy a greater volume, suggesting that more valves would be required on exhaust.

However, on the other hand, the volume is restrained, so the pressure would be greater for the combusted gas, providing more driving force to expel the exhaust. So maybe the extra one should be on the intake side.... I dunno...
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Old 09-29-2005, 05:38 AM   #43
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Quote:
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Doesn't the I-VTEC have 4 valves per cylinder and the VTEC has 2?
No...it's a 16-Valve in the VTEC
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Old 09-29-2005, 06:00 AM   #44
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Originally Posted by BearFace
Power to weight ratios do not dictate how a car will accellerate or max out; they are merely a measure of one single aspect of a car's potential. Torque, gearing, traction, weight distribution and centre of gravity are also critical, so a page full of hp/lb stats is actually meaningless.

A 1.8 Corolla wouldn't hold station in a straight line against a Passat V6, let alone through a series of corners...

You are trying to tell me a 3700lb Passat will outhandle an over 1000lb less Corolla? I'm not saying the Corolla is a handling god, but jeebus that's an out there claim.

Sure hp/tq is only one thing, I never said it will be exactly like a corollas, but it will be in about that same field. Point still is he isnt going to be touching the acceleration or handling of any car in the 220-250hp realm from Honda (Accord)/Mazda (6)/Nissan (Altima)...all weigh a bit less, handle better, and have more power. Matter fact I'd love to see a 4motion VR6 Passat try and beat a new 06 I4 Accord.
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Old 09-29-2005, 06:03 AM   #45
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5 valves per cylinder? Odd.

Yamaha uses it in their bike motors (some) and it's the standard in Forumla 1.
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