Give a break....

Let more new people come in....

Then....

Only......

Lol!!!!!

People like u.... Ngam d!!!
U come TT la, sure very fruitful!

already got a conman towards me for some fruits jor..
gonna inject some antibody before join u guys for TT

OK Idiot sekalian ... I have made the Research on the 4B10 and 4B11 differences .. for idiots whom wanted to do this.. Good news..

The differences is just the Piston and conrod! .. crank shaft is the same..



4B10 | 4B11
Basic diameter mm | 86 | 86 |
Pin hole diameter mm | 21 | 21 |
Overall height mm |52.66 | 50.5 |

4B11 have shorter piston then 4B10

and the conrod ..


4B10 | 4B11
Small end hole diameter (d) mm | 21 | 21 |
Big end hole diameter (D) mm | 51 | 51 |
Centre-to-centre distance (L) mm | 153.55 | 149.25 |


now back to some basic calculation.
4B10 Bore -> 86mm
4B10 Stroke -> 77.4 mm

4B11 Bore -> 86mm
4B11 Stroke -> 86mm


How do we calculate the CC ?

((PI x (Bore / 2) x (Bore / 2) x Stroke ) / 1000 ) x 4

What is PI . 3.142 ... Go google.
the last one we X4 is because it has 4 piston

((3.142 x (86/2) x (86/2) x 77.4 ) / 1000) x 4
= ((3.142 x 43 x 43 x 77.4) /1000) x 4
= (449.659) x 4
= 1798 cc


For 2.0
((3.142 x (86/2) x (86/2) x 77.4) / 1000 ) x 4
= ((3.142 x 43 x 43 x 86 ) / 1000 ) x4
= (499.622) x 4
= 1998 cc


Now look back at the CON ROD I posted
4B10 -> 153.55 mm
4B11 -> 149.25 mm

153.55 - 149.25 mm = 4.3 mm differences
if u put this 4.3 into a JEJARI (sorry I dunno what is call in English) .. in terms of diameter .. 4B11 will be 8.6 mm shorter than 4B10, which makes MORE ROOM for the stroke .

Back to the spec .. 4B10 = 77.4mm stroke ... 4B11 = 86mm stroke
86 - 77.4mm = 8.6mm

So the calculation match .

SUMMARY in layman terms... to upsize 1.8 to 2.0 .. ONLY THE CONROD is SUFFICIENT. But then if you use back the same piston, compression might be too high.

Good luck in exploring

RADIUS

This post has been edited by edison1437: Jun 27 2013, 11:28 PM

yes .. its Radius ...

Look at the 4B10 piston .. no wonder so many complain knocking

prevention is better than cure

GOOD LUCK if u choose to go TT

GG ...

Zam from NPF is my friend friend..last monday go there lepak de...according to him,so far only 1 4B12 and 1 4B11T(evox) has send cylinder head to them...next monday go there again to buy tshirt.

Ya man! Fxxking hell knocking non stop

so, lets gb pistons n conrods

Look at the picture of the little mountain on top of the piston

if fuel quality is there probably it's a better design ?

yes .. but doesn't suit us ...

We are the CHEAPSKATERS .. lolz

i wanted to try ron97....but...
yeah... you r right, i'm a cheapskate... LoL

lol.. yea feel like going to GG soon

High comp 4b10 piston with conrod 4b11 will be more kaboom

Actually ive done high comp setup at my gen2..
So far so good except that my piston ring needs to change now
Im using campro 1.3 high comp piston with crankshaft and conrod campro 1.6

whats the compression rate of ur Gen2 now ?

I cant recall or i dont even calculate it

Becoz my fren done it, he said no prob so i just follow

Its a common mods by campro user

Same case with me. Tomorrow only service for the 3rd times, 10k KM.

I wonder they can help me change the KNN filter or not...