sounds lovely .....i gearchange diff to you ....when its screaming,give the box a creaming....i do like to whip my whip as they say
Can someone please explain why having bigger tyres on the back or drive wheel is supposed to give slower acceleration, I know it'll give higher top speed for the same revs but don't get the slower acceleration bit
I claimed 18 seconds for my van and its 2.0L and my clutch is fine! I need to try harder. I found my video and it looks very similar to yours
You're in a different gear. Think about how it is when your peddling your bike. The gears change progressively. So, if you're in first and you have a tiny back wheel you'll rev the nuts off, wheels turn mega fast but they're smaller so it takes longer to get anywhere, but you'll need to change gear sooner. If you have big wheels you'll still rev the nuts off it, but you have a much larger circumference to turn. I'm sure there is a proper formula but I've had too much to drink
Torque is a measure of force x the length of arm on which the force acts. For the same force on a longer arm, you get a bigger torque. By the same calculation, if the torque is the same and the arm is longer, that means a smaller force. What drives your van forwards is the force at the point where the tyre is in contact with the road. Bigger wheels means a bigger distance between the hub and the contact patch - the same as a bigger arm - so the force driving you forwards is smaller. F=ma, i.e. acceleration is proportional to force, so less force at the contact patch = less acceleration. Sorry if that's not clear, it's something that I wouldn't normally have to think about / explain.
They'll probably shave about 6 seconds off and only be in 3rd gear. They'll have a bigger smile on their face as they go through to 100... Stopped my video too soon, the shift into 4th saw me go through to 85. I had to back off then for the hairpin.
You would get it straight away if I sat in front of you with a piece of paper to sketch on. Words alone always makes for a more convoluted / hard to understand explanation. I remember my first ever engineering job interview with the chief engineer at JCB involved a lot of talking and sketching and not a lot of writing (good job as my writing was / is appalling).
Don't think its that quick. Yet. Next engine in build this coming week though so might make the next RWYB
Bigger wheels = more effort for the engine to turn them. Go and watch the bit on the Top Gear Bolivia Special, just after they'd modified their cars in La Paz.
@Silver It's going to be somewhere in the region of £5k at the bare minimum... Your 40s are going to be too small... you need some 44s/45s, the there is a bigger bore exhaust to speed up the gas flow, plus the head work and some other parts... upgraded/new con rods... Plus I'm not too sure what rpm the stock fan is rated to... @holmsen do you know what the rpm the stock fan can handle is? I don't think it's much past 6k before the blades start breaking out!! So you then have to start thinking about upright cooling... Porsche/type 1/DTM
Like that'll be cheap. Unless you own an F1 racing team, in which case you probably have access to a titanium casting facility.......
