Show whole topic
May 23, 2018 11:01 am
May 23, 2018 11:01 am
Subject: Re: Tappet clearances - why the variation?
That extra 2 bhp is interesting. But where on the rev range was it? People always seem to talk about maximum power, but when do you ever need it unless you are going racing? What interests me more is what happens when you press the middle pedal at, say, 2,500 - 3,000 rpm. I can't see that you air filter would make any difference till you hit peak airflow, which is not going to be at that speed.
You know those crazy hot-rod shops in America that will put a 1,000 bhp motor in a 1950's saloon? One of them quoted the figure at the back wheel as 150 bhp less than at the flywheel! How do you 'lose' 150 bhp along the way? By that reckoning, most cars would barely be able to creep forward!
That extra 2 bhp is interesting. But where on the rev range was it? People always seem to talk about maximum power, but when do you ever need it unless you are going racing? What interests me more is what happens when you press the middle pedal at, say, 2,500 - 3,000 rpm. I can't see that you air filter would make any difference till you hit peak airflow, which is not going to be at that speed.
You know those crazy hot-rod shops in America that will put a 1,000 bhp motor in a 1950's saloon? One of them quoted the figure at the back wheel as 150 bhp less than at the flywheel! How do you 'lose' 150 bhp along the way? By that reckoning, most cars would barely be able to creep forward!