Potentially Stupid Question - Overhead Cam Engines
Discussion
300bhp/ton said:
I have heard good things about the VAG 1.8. Not always 100% sure on the bhp claims on them though. A friend has an older Cupra, with the 180hp engine variant. On a run I'm sure it's pretty good mpg, although on his round town foot to the floor driving I think he was getting 22mpg.
Pretty much. I have the exact same engine as your friend, 22-25 is what I get for urban driving. Best I've seen was 42 on a motorway run at 60, which I think isn't too bad at all.Scuffers said:
can't agree with that.
may be the case at a somewhat higher HP level, but 400hp (in an appropriate car) is not going to be impossible to use.
A 400bhp car is going to be good for what, 160-170 mph? How long can you sustain that for on an Autobhan without meeting other much slower moving traffic? If my Autobhan experiences are anything to go by, the slower moving traffic is likely to be some utter wmay be the case at a somewhat higher HP level, but 400hp (in an appropriate car) is not going to be impossible to use.
ker with UK plates on hogging the outside lane.Mr2Mike said:
A 400bhp car is going to be good for what, 160-170 mph? How long can you sustain that for on an Autobhan without meeting other much slower moving traffic? If my Autobhan experiences are anything to go by, the slower moving traffic is likely to be some utter wker with UK plates on hogging the outside lane.
quite possibly, but that's still more than a few seconds.ker with UK plates on hogging the outside lane.10+ minutes, you have a point...
Mr2Mike said:
A 400bhp car is going to be good for what, 160-170 mph? How long can you sustain that for on an Autobhan without meeting other much slower moving traffic? If my Autobhan experiences are anything to go by, the slower moving traffic is likely to be some utter wker with UK plates on hogging the outside lane.
I think you are missing the point. The more power a car has, the faster it can accelerate (torque x rpm) at a given speed. Doesn't mean tou need the terminal velocity to enjoy it. By your logic an 800hp should be undriveable but I can assure you it isn't. Just means where a weedy 250hp car runs out of puff, the more powerful one keeps accelerating. Surely you understand that?ker with UK plates on hogging the outside lane.Mr2Mike said:
Even on an Autobhan you'd have trouble maxing out a 400bhp car for more than a few seconds unless it was absolutely deserted.
You are 100% correct. These other guys are dreaming.For example: you're driving at 180 mph and covering a mile every 20 seconds. A quarter of a mile in front of you a car moves into your lane travelling at the more usual 80 mph. You're catching it at 100 mph and even if it maintains its current speed, which you can't be sure, you've got about 10 seconds to shed 100 mph off your speed if you're planning to maintain a safe distance. That should be good for your nerves. And your road car brakes - I'm not clever enough to do the physics but the heat energy will be mahoosive.
Scuffers said:
180 is not160..
Asides that, no matter, its still very possible to be at WOT for more than a few seconds.
Not in the UK if you wish to hold onto your licence.Asides that, no matter, its still very possible to be at WOT for more than a few seconds.
That's why I sold my 440bhp V8 RX7 - 50mph limit on most country roads now and doubling that took perhaps 10 seconds but bearing in mind you are probably travelling at 40 when you accelerate then you could accelerate for around 6 seconds before doubling the limit or 3 seconds if you want to avoid a ban.
Obviously the same is true for any decent motorbike.
Ozzie Osmond said:
IMO that is almost certainly the statement of someone who's never driven a 400 bhp car on the autobahn. Alternatively, you may wish to tell us about your experiences.
And almost certainly you are wrong.V8RX7 said:
Not in the UK if you wish to hold onto your licence.
That's why I sold my 440bhp V8 RX7 - 50mph limit on most country roads now and doubling that took perhaps 10 seconds but bearing in mind you are probably travelling at 40 when you accelerate then you could accelerate for around 6 seconds before doubling the limit or 3 seconds if you want to avoid a ban.
Obviously the same is true for any decent motorbike.
who said anything about in the UK? (although in times past it was much easier).That's why I sold my 440bhp V8 RX7 - 50mph limit on most country roads now and doubling that took perhaps 10 seconds but bearing in mind you are probably travelling at 40 when you accelerate then you could accelerate for around 6 seconds before doubling the limit or 3 seconds if you want to avoid a ban.
Obviously the same is true for any decent motorbike.
Ozzie Osmond said:
Scuffers said:
Asides that, no matter, its still very possible to be at WOT for more than a few seconds.
IMO that is almost certainly the statement of someone who's never driven a 400 bhp car on the autobahn. Alternatively, you may wish to tell us about your experiences.
R8VXF said:
Ozzie Osmond said:
Scuffers said:
Asides that, no matter, its still very possible to be at WOT for more than a few seconds.
IMO that is almost certainly the statement of someone who's never driven a 400 bhp car on the autobahn. Alternatively, you may wish to tell us about your experiences.Ho ho Scuffers, we're calling you on this one. You're thinking in terms of 0-120 times you've read in a book when you need to be thinking about how reality unfolds when you're already cruising at a good speed on the Abahn and then mash the throttle in a high power car. Things happen very quickly indeed.
You should try it some time.
You should try it some time.
Ozzie Osmond said:
Ho ho Scuffers, we're calling you on this one. You're thinking in terms of 0-120 times you've read in a book when you need to be thinking about how reality unfolds when you're already cruising at a good speed on the Abahn and then mash the throttle in a high power car. Things happen very quickly indeed.
You should try it some time.
I will log my runway run tomorrow and post it up to show acceleration times all the way up to VMAX You should try it some time.
Ozzie Osmond said:
Ho ho Scuffers, we're calling you on this one. You're thinking in terms of 0-120 times you've read in a book when you need to be thinking about how reality unfolds when you're already cruising at a good speed on the Abahn and then mash the throttle in a high power car. Things happen very quickly indeed.
You should try it some time.
you can try calling me out on this if you like...You should try it some time.
a quick trip over to youtube may make you look a bit stupid though.
Ozzie Osmond said:
you need to be thinking about how reality unfolds when you're already cruising at a good speed on the Abahn and then mash the throttle in a high power car. Things happen very quickly indeed.
It doesn't really though, does it. Fast and Furious wasn't actually a documentary. Gassing Station | General Gassing | Top of Page | What's New | My Stuff