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 3 Cylinder Engine Exkonomi, Everyone want less cylinders, smaller

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SUSDezs
post Apr 29 2021, 10:10 PM, updated 5y ago

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Unker tengah boring, mau tanya soalan bodo ni:
1. Pipul always say 3 cylinder not balance, unker go ask abam Google, he say cause 1 cylinder fire then 2 and 3 together, veli not balance. Why kenot just fire 1,2,3 or 1,3,2 niama? Ur besi rod can only make square shape meh? U order sequentially then not balance liew meh?

2. Since less cylinder is better, then why not just do 2 cyl extra large motobodo enjin with turbo? Or even better giant single silinder 1L turbo or even better....

inb4 serius question namba 1. Brain got unplogged when reach namba 2 cause bateri not charged enuff... todei unker no sumbat caffeine

UPdate TS bodo™ idea:
user posted image
If donut firing chamber reduce friction super smooth, as many donut as you rike, and solve reciporacacing mass

This post has been edited by Dezs: Apr 29 2021, 10:25 PM
desmond2020
post Apr 29 2021, 10:10 PM

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did you even science bruh?
SUSDezs
post Apr 29 2021, 10:12 PM

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QUOTE(desmond2020 @ Apr 29 2021, 10:10 PM)
did you even science bruh?
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unker science in 1 and 0 nia.. physics score A1, but end up used for repairing toilet and door DIY.

inb4 claimed imbalance from firing order. clearly u can balance 3 cylinders positionally. so why must 3 cyl fire solo cyl, then double? Cannot fire 1,2,3 then u have rotary force no? Based on my toilet flush tank understanding la..
fantasy1989
post Apr 29 2021, 10:14 PM

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1. it's not the cylinder sequence



2. yes. there is https://www.hotcars.com/cars-that-surprisin...linder-engines/

This post has been edited by fantasy1989: Apr 29 2021, 10:15 PM
AbbyCom
post Apr 29 2021, 10:16 PM

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QUOTE(Dezs @ Apr 29 2021, 10:12 PM)

inb4 claimed imbalance from firing order. clearly u can balance 3 cylinders positionally. so why must 3 cyl fire solo cyl, then double? Cannot fire 1,2,3 then u have rotary force no? Based on my toilet flush tank understanding la..
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Ayam not automotive or mechanical engineer but ayam also have same question as TS.....

Volva 5 cyl also can why 3 cyl kenot....
diffyhelman2
post Apr 29 2021, 10:17 PM

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QUOTE(Dezs @ Apr 29 2021, 10:12 PM)
unker science in 1 and 0 nia.. physics score A1, but end up used for repairing toilet and door DIY.

inb4 claimed imbalance from firing order. clearly u can balance 3 cylinders positionally. so why must 3 cyl fire solo cyl, then double? Cannot fire 1,2,3 then u have rotary force no? Based on my toilet flush tank understanding la..
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petrol cycle, every 4th stroke is a power/combustion stroke. with 4 cylinders only one cylinder is in power stroke at any one time. with three cylinders....they will be a cylinder overlap their power stroke with another cylinder....
maraippo
post Apr 29 2021, 10:18 PM

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smallcrab
post Apr 29 2021, 10:18 PM

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CertifiedHomphobe
post Apr 29 2021, 10:20 PM

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if sequentially then kenot balance the reciprocating mass. The engine would rock back an forth like a retard , torsional imbalance oso very stronk.


Oso have something to do with the power stroke etc.

Ayam dunno that much though , only have surface level knowledge on engines , but got some insight from frens in mech eng branch . A balancing shaft can only do so much.
SUSDezs
post Apr 29 2021, 10:21 PM

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QUOTE(diffyhelman2 @ Apr 29 2021, 10:17 PM)
petrol cycle, every 4th stroke is a power/combustion stroke. with 4 cylinders only one cylinder is in power stroke at any one time. with three cylinders....they will be a cylinder overlap their power stroke with another cylinder....
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Well le question is, even if you got 4 stroke, can't the 4 strokes be adjusted accordingly on each of the cylinder? Or simply because too much hassle? inb4 all these vvti, vtec la etc etc clearly spell teknology to be dynamic ma..

QUOTE(maraippo @ Apr 29 2021, 10:18 PM)
What smoke u weed bro
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ohman
post Apr 29 2021, 10:22 PM

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1 +2 = not balance

2+2 = Balance

3+3 = balance

4+4 = balance


6 = v6
8=v8
10= v10
12=v12

V = balance and stable.


user posted image

This post has been edited by ohman: Apr 29 2021, 10:22 PM
RGRaj
post Apr 29 2021, 10:22 PM

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If crankshaft offset is 120°, then u'll have 3 power strokes for 1 crank rotation. This 1 & 2+3 firing order is a weird ass design.
SUSrtk74
post Apr 29 2021, 10:22 PM

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6 Cyl bestest and smoothest because the internal forces balances out.


SUSDezs
post Apr 29 2021, 10:22 PM

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QUOTE(CertifiedHomphobe @ Apr 29 2021, 10:20 PM)
if sequentially then kenot balance the reciprocating mass. The engine would rock back an forth like a retard , torsional imbalance oso very stronk.
Oso have something to do with the power stroke etc.

Ayam dunno that much though , only have surface level knowledge on engines , but got some insight from frens in mech eng branch . A balancing shaft can only do so much.
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Mmmm...so hence the rotary engine idea? stupid idea pop out liao... donut firing chamber mcm yesh topkek... maybe one day unker can patent million dollar stupid idea.
SUSrtk74
post Apr 29 2021, 10:24 PM

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QUOTE(ohman @ Apr 29 2021, 10:22 PM)
1 +2 = not balance

2+2 = Balance

3+3 = balance

4+4 = balance
6 = v6
8=v8
10= v10
12=v12

V = balance and stable.
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V6 =/= straight 6 =/= VR6


desmond2020
post Apr 29 2021, 10:24 PM

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QUOTE(rtk74 @ Apr 29 2021, 10:24 PM)
V6 =/= straight 6 =/= VR6


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straight 6 is best engine even made brows.gif
ohman
post Apr 29 2021, 10:26 PM

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QUOTE(rtk74 @ Apr 29 2021, 10:24 PM)
V6 =/= straight 6 =/= VR6


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QUOTE(rtk74 @ Apr 29 2021, 10:22 PM)
6 Cyl bestest and smoothest because the internal forces balances out.
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CertifiedHomphobe
post Apr 29 2021, 10:27 PM

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QUOTE(Dezs @ Apr 29 2021, 10:22 PM)
Mmmm...so hence the rotary engine idea? stupid idea pop out liao... donut firing chamber mcm yesh topkek... maybe one day unker can patent million dollar stupid idea.
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wat u toking about? Wankels are very balanced , the 4 stroke rotating doritos and shaft actually cancel out each rotor. Wankels have no reciprocating mass + the torsion (or torque) is pressed on the walls without any arms like a piston .

Just that its stupidly inefficient in burning fuel / low thermal effieciency and the apex seals has a chance of dying on you everytime you drive.

This post has been edited by CertifiedHomphobe: Apr 29 2021, 10:29 PM
desmond2020
post Apr 29 2021, 10:30 PM

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QUOTE(CertifiedHomphobe @ Apr 29 2021, 10:27 PM)
wat u toking about? Wankels are very balanced , the 4 stroke rotating doritos and shaft actually cancel out each rotor. Wankels have no reciprocating mass + the torsion (or torque) is pressed on the walls without any arms like a piston .

Just that its stupidly inefficient in burning fuel and the apex seals has a chance of dying on you everytime you drive.
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the problem is still with the material use to seal chamber, aside from the crazy fuel consumption
SUSrtk74
post Apr 29 2021, 10:30 PM

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QUOTE(desmond2020 @ Apr 29 2021, 10:24 PM)
straight 6 is best engine even made  brows.gif
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