The things and calculation on gear ratios

So, typically you all know gear ratios and how it affect the speed at given RPM at certain gear with respective ratio, as well as the maximum speed you can achieve on certain gear.

Add in along with the sizes of tyre, and the weight in though might affect the results, but we going to talk on stock settings.

So before we begin, every gear has own ratios (obviously), and no matter how many gear you have, you will have one Final Ratio which always will be the culprit that people complain they can’t reach the top speed as desired. A shorter (higher number) gear ratio is more powerful, that it can climb up the revs fast and thus faster acceleration, but on the other hand give up the maximum speed achievable in that gear; while on the other hand a long gear ratio is less powerful that it can’t climb up the revs as fast as a shorter ratio, but will be able to achieve higher speed on that gear.

Therefore it is why our transmission has multiple speeds aka gears that represents into gear ratio. Imagine that there is this vehicle, with only one gear… If the factory decided to put the gear ratio at 2.5 : 1, the vehicle can accelerate quite fast and can climb up a slope easily, but the maximum speed at the max RPM, lets say for example only 55KM/H. On the other hand, if the gear ratio is at exactly 1 : 1, the vehicle accelerate very slowly from standstill, and it can’t quite climb up a slope from standstill unless given a full throttle, but it can achieve a max speed at 160KM/H at maximum RPM. Note that all the figures given are examples, without taking in the tyre size and maximum RPM into play.

Below is the calculation of a stock Civic FD2 (K20Z2/6800RPM/5AT) and Civic Type R FD2R (K20A/8300RPM/6MT).

	FD2(215/45/17)		FD2R(225/40/18)
Gear	Gear Ratio	Max Speed @ Max RPM (KM/H)	Gear Ratio	Max Speed @ Max RPM (KM/H)
1st	2.651	71	3.266	60
2nd	1.516	120	2.130	95
3rd	1.081	167	1.517	134
4th	0.772	231	1.147	176
5th	0.566	310	0.921	219
6th			0.738	267
Final Ratio	4.562		5.062

To be continued…

Do

So… His instinct, he believes so… That’s the truth and true color to him…

But nevertheless, none without weakness, for everyone has own strength…

As propaganda and influential as he should be…

I seriously think that somehow computer and technology literate people like him can be a good poet and author though…

“Money is not a problem, problem is no money.”
“A problem that can be settled by money is considered not a problem, only when you have no money.”

So you invest in a hybrid/turbo-diesel/TSI to save fuel? Short term or long term?
So you sell some big stuffs like lands and houses to cover expenses while you still spend another average big portion to get another house to sustain living.

So shall we do absorption costing or marginal costing?

Every month needs to pay 3000 fixed expenses, a year is of 36000 in total. On hand there is 40000 left, which covers about 13 months.

Sell ABC condo units for 30000, spend 25000 gained to buy a smaller terrace, 2000 spent on shifting and etcetera fees, left 3000 for you to pay an extra month of expenses.

Well how easy if this is the question coming out this Friday for AFI test?

I felt for her situation… But I can’t help any, or much… Yes, I telling myself to restrain any temper on her usual “never-mind” attitude… Yes, I can only help her in cleaning vehicle and only to be made dirty by her the next hour. Well, still living isn’t it? Yet, she could do better…

And… Hopefully the first step on me in business world will be successful and even leading to greater opportunities… Hope those friends in my list would be with me if there is the chance…

Another long hiatus

So it is almost end of semester along with a Chinese New Year holiday in between, with assignments to hand in… Well, what needs to be done…

New comp to play around with… But then as usual, I kinda sad to put my old comp away, serving me so well, still missing that super fast boot up and shut down of E6600, other than the weird restart it’s just working very well. Well I would get beaten up by dad if I said I wanted to have both, so… Sigh… Unless I paid for it…

And for my Civic wise, after PS3 and RapidStop brake pads, here comes another try of Honda ATF Z1 Ultra… Just the first step of accelerator and the difference is obvious to blind and deaf.

And then it is… Maybe just some mental breakdown, not sure what happened to me or surroundings… Everything so wrong? Or just my thoughts and temper?

As for my very special friend, he seems to be still circling around his “presumed thoughts” aka presumptions… OR in first person view, assumptions… I wonder does that really made him the righteous person? Or maybe really made him more happy?

First post in year 2011

So, did not really sense the feeling of being in a new year of 2011. Wish and hope for a better year though…

However… Things not likely to happen… Things around just as worse as before… Maybe it is me after all who creates them?

Yes, I am in debt, big debt shall I say? To my parents and to Peggy. Well, will need to try real hard to pay back all…

One thing I keep telling myself now, maybe if that’s the way for you to care me, then let it be, not that I don’t appreciate, but for me it is being an excuse for you long and long soon enough. I won’t voice out anything again for now, it’s difficult as things not in my control either.

The trip that I wished to be a good turnaround did not work out 100% either… But then still acceptable…

Freedom… Financial freedom… Yea, there is one seemingly opportunity, but I don’t have the budget to risk it either…

Maybe in the end still conclude that I suck… And that she deserves better… Full of love, caring and freedom.

2010 gone… 2011 will I witness its departure in the same old way too?

To all out there, have a happy, smooth, and prosperous year of 2011 with endless joy and fun.