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 LYN Proton INSPIRA Owners and Fans Thread V46!, VOTE!!! VOTE!!! VOTE!!!!11!

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TSPip_X
post Oct 4 2012, 10:26 AM

Got miao miao jor.
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Apa ni stroke stroke?
Ask some sis stroke my kuku chaio can?
y_m
post Oct 4 2012, 10:26 AM

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QUOTE(K3nnYkl82 @ Oct 4 2012, 10:10 AM)
i still prefer ur avatar ....  wub.gif

Bore = Diameter .. width of a piston .
Stroke = how much distance the piston travel from TDC to BDC

4B10 -> Bore = 86mm  Stroke = 77.4mm
4B11 -> Bore = 86mm  Stroke = 86 mm
4B12 -> Bore = 88mm  Stroke = 97 mm

Calculation pretty simple ..
PI x ((Bore / 2 )^2)/1000 x (stroke) x (number of piston)

PI is constant = 3.142

take 4B10 as example ..

(3.142) x ((86/2)^2)/1000 x (77.4) x (4)
(3.142) x ((43)^2)/1000 x (77.4) x (4)
(3.142) x (1.849) x (309.6)
= 1798 cc ...

4B11 as follow ....
(3.142) x ((86/2)^2)/1000 x (86) x (4)
(3.142) x ((43)^2)/1000 x (86) x (4)
(3.142) x (1.849) x (344)
= 1998cc ...
TADA!

Now .... story can continue ..
increase either BORE SIZE or STORKE will increase the capacity ..
due to the reason 4B10 / 4B11 same block but diff stroke kit ..
that is why 4B10 can stoke it up to 4B11 spec!

Longer stroke .. engine slower response ..

KOPY KOPY KOPY
*
notworthy.gif good "kopi" info & calculation
piston distance...higher mean can create more powah....
edison1437
post Oct 4 2012, 10:27 AM

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QUOTE(K3nnYkl82 @ Oct 4 2012, 10:48 AM)
We Talk about what OTHER PPL dun talk ge ma ..

ENGINE oil la ..
Engine la ..
Gear la ..
TB la ..

so today i tell u all .. how to calculate engine capacity .. lolzzzzzzzzz

damn .. im so free
*
good morning teacher laugh.gif laugh.gif

QUOTE(K3nnYkl82 @ Oct 4 2012, 11:10 AM)
i still prefer ur avatar ....  wub.gif

Bore = Diameter .. width of a piston .
Stroke = how much distance the piston travel from TDC to BDC

4B10 -> Bore = 86mm  Stroke = 77.4mm
4B11 -> Bore = 86mm  Stroke = 86 mm
4B12 -> Bore = 88mm  Stroke = 97 mm

Calculation pretty simple ..
PI x ((Bore / 2 )^2)/1000 x (stroke) x (number of piston)

PI is constant = 3.142

take 4B10 as example ..

(3.142) x ((86/2)^2)/1000 x (77.4) x (4)
(3.142) x ((43)^2)/1000 x (77.4) x (4)
(3.142) x (1.849) x (309.6)
= 1798 cc ...

4B11 as follow ....
(3.142) x ((86/2)^2)/1000 x (86) x (4)
(3.142) x ((43)^2)/1000 x (86) x (4)
(3.142) x (1.849) x (344)
= 1998cc ...
TADA!

Now .... story can continue ..
increase either BORE SIZE or STORKE will increase the capacity ..
due to the reason 4B10 / 4B11 same block but diff stroke kit ..
that is why 4B10 can stoke it up to 4B11 spec!

Longer stroke .. engine slower response ..

KOPY KOPY KOPY
*
10q teacher rclxms.gif rclxms.gif
y_m
post Oct 4 2012, 10:30 AM

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by the way, we had move 1 step ahead liao...
we move from engine oil to petrol....but still oil la... blush.gif
K3nnYkl82
post Oct 4 2012, 10:31 AM

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QUOTE(JackNg1985 @ Oct 4 2012, 10:19 AM)
LOnger stroke but slower response....
Manual of 4B11 suitable?

How much for stroke kit?
Or still stick back find 4B11 engine for sale?
*
of coz longer stroke slower response ma ..

4B10 ... the piston travel from top to bottom (77.4mm) .. from bottom to top (77.4mm) = 154.8mm
4B11 .. 86mm (down) .. 86mm (up) = 172mm

each cycle .. 17.2mm more on 4B11 ..

at 1000 rpm ... 4B11 piston have to travel 17200 mm more than 4B10 ..

let says we doing 3000 rpm on 4B10 ...
3000 rotation per min ..
3000 / 60 = 50 rotation per second .. piston travel up and down 50 times per second ..
one rotation 154.8 mm ... x50 = 7740mm travel per second ..

so 1mm need how long to travel ??

1 / 7740 = 0.129mili second per mm

USE BACK THE SAME PISTON SPEED for 4B11 ..
7740 / 172mm (one cycle for 4B11) = 45 ...

same piston speed ... 4B11 only able to do 45 cycle per second ... that is ... 45 x 60 = 2700 rpm ..

TRYING TO CONFUSE those spy ... tongue.gif

Layman term .. 4B10 have better response than 4B11 .. but power of coz 4B11 more power
habibz84
post Oct 4 2012, 10:36 AM

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QUOTE(K3nnYkl82 @ Oct 4 2012, 10:31 AM)
of coz longer stroke slower response ma ..

4B10 ... the piston travel from top to bottom (77.4mm) .. from bottom to top (77.4mm) = 154.8mm
4B11 .. 86mm (down) .. 86mm (up) = 172mm

each cycle .. 17.2mm more on 4B11 ..

at 1000 rpm ... 4B11 piston have to travel 17200 mm more than 4B10 ..

let says we doing 3000 rpm on 4B10 ...
3000 rotation per min ..
3000 / 60 = 50 rotation per second .. piston travel up and down 50 times per second ..
one rotation 154.8 mm ... x50 = 7740mm travel per second ..

so 1mm need how long to travel ??

1 / 7740 = 0.129mili second per mm

USE BACK THE SAME PISTON SPEED for 4B11 ..
7740 / 172mm (one cycle for 4B11) = 45 ...

same piston speed ... 4B11 only able to do 45 cycle per second ... that is ... 45 x 60 = 2700 rpm ..

TRYING TO CONFUSE those spy ... tongue.gif

Layman term .. 4B10 have better response than 4B11 .. but power of coz 4B11 more power
*
Prof. Dr. K3,

I pening see all the number wor.
unknownhammie
post Oct 4 2012, 10:39 AM

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argg.. mibec why u so loud but no power. haiz.
miuk
post Oct 4 2012, 10:41 AM

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Same reasoning applies as to why for F1 where engines rev till 18k rpm, their engines use massively short strokes.

Having a shorter stroke allows for faster rev and less friction heat build up. However in a long vs short stroke design, having a longer stroke will give better torque. This is why the 4b12 engine has a much higher torque number.

Then next up, majority of engine designers have actually said one of the best designs would be a square cube design where the stroke and bore are of same length, like in the 4B11. Also BMW noted that for them the best design comes from a cylinder which is 500cc, which is why BMW engines are famous for their 2l 4cylinder, 3l inline 6, 4l V8.

this is no kopi stuff, self written

Maybe tomorrow we start lesson on HP vs torque
Xai-V-iaX
post Oct 4 2012, 10:46 AM

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QUOTE(miuk @ Oct 4 2012, 10:41 AM)
Same reasoning applies as to why for F1 where engines rev till 18k rpm, their engines use massively short strokes.

Having a shorter stroke allows for faster rev and less friction heat build up. However in a long vs short stroke design, having a longer stroke will give better torque. This is why the 4b12 engine has a much higher torque number.

Then next up, majority of engine designers have actually said one of the best designs would be a square cube design where the stroke and bore are of same length, like in the 4B11. Also BMW noted that for them the best design comes from a cylinder which is 500cc, which is why BMW engines are famous for their 2l 4cylinder, 3l inline 6, 4l V8.

this is no kopi stuff, self written

Maybe tomorrow we start lesson on HP vs torque
*
Wah....your england very the power la...

NAIS!!!! TERBAEEEEEEK!!!!!

PANAAAAAAAAAAAAAAAAAAAAS!!!!!!! rclxms.gif rclxms.gif rclxms.gif
K3nnYkl82
post Oct 4 2012, 10:47 AM

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QUOTE(habibz84 @ Oct 4 2012, 10:36 AM)
Prof. Dr. K3,

I pening see all the number wor.
*
Dun simply call okay ... im KOPY CAT ..
info i copy from the Godlike OttoMrain

fuel burning power and rate is always a constant ..
no matter u put in a 3L .. 4L engine .. that rate is always CONSTANT .. wont change ..
we are assuming using the same fuel here .. and same amount fo fuel ..

so the amount of energy provided by the fuel is the same no matter how big ur engine capacity ..
Bigger engine gets more power out .. bcoz the put more fuel and air ...

so if the fuel able to push the piston for

4B10 at 7740mm / second ...
one stroke is 77.4mm x 2 for 4B10 ..
so 7740mm equalvalent to 50 x the piston travel up and down for 4B10 / second

the same amount of energy .. put into 4B11 ..
7740mm / second ..
one stroke for 4B11 is .. 86mm x 2 = 172mm (one cycle)
so 7740 / 172 = 45 x the piston travel up and down for 4B11 / second

again .. same amount of energy .. put in 4B12 ..
7740mm / second ..
one stroke for 4B12 is 97mm x 2 = 194mm (one cycle)
so 7740 / 194 = 39.90 x the piston travel up and down for 4B12 / second


4B10 -> 50 times / second
4B11 -> 45 times / second
4B12 -> 39.9 times / second

change to per min ..
4B10 -> 50 x 60 = 3000 rpm
4B11 -> 45 x 60 = 2700 rpm
4B12 -> 39.90 x 60 = 2394 rpm

so what does this means ??
the longer the stroke .. the engine need to work harder .. run faster to get the same RPM ... hence when u floor it .. for a shorter stroke .. the engine NO NEED WORK SO HARD .. the response will come faster .. longer stroke .. it work harder .. slower to come ..

GANAS ?

HANGAT ?

TERBAEKKK ??

aleee .. kopy ajeeeee
Xai-V-iaX
post Oct 4 2012, 10:47 AM

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QUOTE(kennytomatoes @ Oct 4 2012, 10:08 AM)
Xai, my new name is at my siggy

Roberto de hamsen potato michel donutroll

There is another muslim ubi at god like copy paste tuning club...
Mohamed Potatomen

So, potato omis on heat!

Better i change to oppa tomato style.
*
Potato also got people wanna cetak rompak ah??? doh.gif doh.gif doh.gif

Nice name by the way....

TERBAEEEEEK.....NAISSSSSS!!!!!
JackNg1985
post Oct 4 2012, 10:49 AM

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QUOTE(K3nnYkl82 @ Oct 4 2012, 10:31 AM)
of coz longer stroke slower response ma ..

4B10 ... the piston travel from top to bottom (77.4mm) .. from bottom to top (77.4mm) = 154.8mm
4B11 .. 86mm (down) .. 86mm (up) = 172mm

each cycle .. 17.2mm more on 4B11 ..

at 1000 rpm ... 4B11 piston have to travel 17200 mm more than 4B10 ..

let says we doing 3000 rpm on 4B10 ...
3000 rotation per min ..
3000 / 60 = 50 rotation per second .. piston travel up and down 50 times per second ..
one rotation 154.8 mm ... x50 = 7740mm travel per second ..

so 1mm need how long to travel ??

1 / 7740 = 0.129mili second per mm

USE BACK THE SAME PISTON SPEED for 4B11 ..
7740 / 172mm (one cycle for 4B11) = 45 ...

same piston speed ... 4B11 only able to do 45 cycle per second ... that is ... 45 x 60 = 2700 rpm ..

TRYING TO CONFUSE those spy ... tongue.gif

Layman term .. 4B10 have better response than 4B11 .. but power of coz 4B11 more power
*
LOL.... after try to follow all your formula.
Start remind me 10yrs ago my AddMath class...

DAmn i m so rclxub.gif
HAHAHAHA..
But i know what you are saying thumbup.gif
s@ni
post Oct 4 2012, 10:56 AM

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From: Seasaw
QUOTE(K3nnYkl82 @ Oct 4 2012, 10:47 AM)
Dun simply call okay ... im KOPY CAT ..
info i copy from the Godlike OttoMrain

fuel burning power and rate is always a constant ..
no matter u put in a 3L .. 4L engine .. that rate is always CONSTANT .. wont change ..
we are assuming using the same fuel here .. and same amount fo fuel ..

so the amount of energy provided by the fuel is the same no matter how big ur engine capacity ..
Bigger engine gets more power out .. bcoz the put more fuel and air ...

so if the fuel able to push the piston for

4B10 at 7740mm / second ...
one stroke is 77.4mm x 2 for 4B10 ..
so 7740mm equalvalent to 50 x the piston travel up and down for 4B10 / second

the same amount of energy .. put into 4B11 ..
7740mm / second ..
one stroke for 4B11 is .. 86mm x 2 = 172mm (one cycle)
so 7740 / 172 = 45 x the piston travel up and down for 4B11 / second

again .. same amount of energy .. put in 4B12 ..
7740mm / second ..
one stroke for 4B12 is 97mm x 2 = 194mm (one cycle)
so 7740 / 194 = 39.90 x the piston travel up and down for 4B12 / second
4B10 -> 50 times / second
4B11 -> 45 times / second
4B12 -> 39.9 times / second

change to per min ..
4B10 -> 50 x 60 = 3000 rpm
4B11 -> 45 x 60 = 2700 rpm
4B12 -> 39.90 x 60 = 2394 rpm

so what does this means ??
the longer the stroke .. the engine need to work harder .. run faster to get the same RPM ... hence when u floor it .. for a shorter stroke .. the engine NO NEED WORK SO HARD .. the response will come faster .. longer stroke .. it work harder .. slower to come ..

GANAS ?

HANGAT ?

TERBAEKKK ??

aleee .. kopy ajeeeee
*
a beri long long explaination. and a good summary.


my rims now officially around 7.55kg/rim inclusive of spacer (dafuqqq i needs to install spacer)

inspila ugly rim now in the store
K3nnYkl82
post Oct 4 2012, 10:57 AM

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QUOTE(s@ni @ Oct 4 2012, 10:56 AM)
a beri long long explaination. and a good summary.
my rims now officially around 7.55kg/rim inclusive of spacer (dafuqqq i needs to install spacer)

inspila ugly rim now in the store
*
GAMBAR MANA PONDAN!
kennytomatoes
post Oct 4 2012, 11:08 AM

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old liao icon_rolleyes.gif

user posted image
K3nnYkl82
post Oct 4 2012, 11:11 AM

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MURAH!

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with tire sumore .. lai lai lai ...
s@ni
post Oct 4 2012, 11:11 AM

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QUOTE(K3nnYkl82 @ Oct 4 2012, 10:57 AM)
GAMBAR MANA PONDAN!
*
» Click to show Spoiler - click again to hide... «


cheapjing rim for cheapjing guy like me cry.gif

until i found a good and interesting 17", i will stick with this rim and my existing tyres laugh.gif

those who is interested to buy that ori 18" konig by enkei, it is sold to somebody name ALI

This post has been edited by s@ni: Oct 4 2012, 11:14 AM
K3nnYkl82
post Oct 4 2012, 11:16 AM

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QUOTE(s@ni @ Oct 4 2012, 11:11 AM)
» Click to show Spoiler - click again to hide... «


cheapjing rim for cheapjing guy like me cry.gif

until i found a good and interesting 17", i will stick with this rim and my existing tyres laugh.gif

those who is interested to buy that ori 18" konig by enkei, it is sold to somebody name ALI
*
sei cheap jing ... why like my previous post geh .. whistling.gif
habibz84
post Oct 4 2012, 11:17 AM

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QUOTE(s@ni @ Oct 4 2012, 11:11 AM)
» Click to show Spoiler - click again to hide... «


cheapjing rim for cheapjing guy like me cry.gif

until i found a good and interesting 17", i will stick with this rim and my existing tyres laugh.gif

those who is interested to buy that ori 18" konig by enkei, it is sold to somebody name ALI
*
this is 2.0e rim?
rublik
post Oct 4 2012, 11:18 AM

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From: Muar, Johor
QUOTE(K3nnYkl82 @ Oct 4 2012, 10:31 AM)
of coz longer stroke slower response ma ..

4B10 ... the piston travel from top to bottom (77.4mm) .. from bottom to top (77.4mm) = 154.8mm
4B11 .. 86mm (down) .. 86mm (up) = 172mm

each cycle .. 17.2mm more on 4B11 ..

at 1000 rpm ... 4B11 piston have to travel 17200 mm more than 4B10 ..

let says we doing 3000 rpm on 4B10 ...
3000 rotation per min ..
3000 / 60 = 50 rotation per second .. piston travel up and down 50 times per second ..
one rotation 154.8 mm ... x50 = 7740mm travel per second ..

so 1mm need how long to travel ??

1 / 7740 = 0.129mili second per mm

USE BACK THE SAME PISTON SPEED for 4B11 ..
7740 / 172mm (one cycle for 4B11) = 45 ...

same piston speed ... 4B11 only able to do 45 cycle per second ... that is ... 45 x 60 = 2700 rpm ..

TRYING TO CONFUSE those spy ... tongue.gif

Layman term .. 4B10 have better response than 4B11 .. but power of coz 4B11 more power
*
In animal world, longer and bigger better
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