4g93 with ITBs

Hi guys.

Last week, my friend and me went to his panel workshop to do wide-band tuning to his engine. When i was waiting for the tuning to finish, i took a look around on the other rides in the workshop but then i spotted a mysterious induction sound at the back of the workshop. Im very curious to know where the sound came from so i went to the back and check on the ride. It came from a 'not so flashy' yellow Proton Satria with 4g93 engine. Then i realized, it is the engine that i spotted couple of months ago when it is still in the building up process. Hell yeah. Now, it's finished! Pictures of the engine bay bellow.






I'm craving for this induction setup. The sound from the ITBs is damn sweet. I have to keep this engine specifications as secrets since i've made a promise with the owner =p

p/s: happy fasting to all of my moslem friends.

Engine Balancing

Konniciwa.
A lot of my friends ask me what is engine balancing and why we must do it. Eventhough my ass is damn lazy to get off from the bed but at last i managed to write something about the topic=p .Hahaha. Btw, i really hope that in today's post, i can share something that i know and from research that i made, you the readers will get some idea about it.


FYI, Engine balancing is important especially when we wanna build performance engines for the street, strip or circle track because this can ensure the engine smoothness, durability and maximum horsepower. It is also verrrryyy important in high revving engine since the force of any imbalance multiplies with speed. FYI, as u read my earlier post , i'm in progress to build a high revving 4g93 engine =)

In my overhaulin' project, i asked my mechanic to lighten some of the weight from the crankshaft. After lightening the crank, the crankshaft is of course out of balance and the uneven distribution of weight can generate centripetal forces that shake the engine with increasing intensity as engine rpm goes up.The greater the imbalance and the further it is from the center of the crankshaft, the more the engine shakes and hammers the main bearings and crank. Over time, this can lead to metal fatigue and cracks that may cause the bearings to fail or the crank to break. So in order to prevent this , i asked my mechanics to send the crank for balancing.

Other than that i also asked my mechanics to sent all of the parts such as pistons, connecting rods, racing clutch cover etc. The weights may be fairly even. Even so, it’s always a good idea to check the weights, and to equalize the weights as needed. After that all the weights of the reciprocating parts after measured ( piston , rods etc) , then have to be balanced to the counterweights on the crankshaft.

That's all guys. I hope it can give you some of the idea of "engine balancing". So for those who thinking to upgrade such as lightweight crankshaft or oversized pistons to prepare some of your budget for engine balancing. I know that some might think that this is not really necessary but can you take your 5 minutes of time and try to imagine this ; What happen if you dont balance your rims after you change to new tires? It will vibrate like hell right? So do the engine =)

regards.