Head Jvt Big Valve Head

[icemanx1r6]

Any update for the price of the above subject?

 

[icemanx1r6]

Any update for the price of the above subject?

 

[suplado010]

i wonder what is the best head and block..is it uma62mm + uma super head or jvt62mm + jvt big valve head...

 

[icemanx1r6]

Any update for the price of the above subject?

 

[lpsnipie_67]

uma 62mm bore + uma super head or malossi 63mm bore + uma super head "wishlist ko lang"

 

[Method21]

this item is not yet in the market

 

[botsok]

guys, below is a rough computation on your compression ratio considering there are no changes in the head (Shaving, jackup, high comp piston and polishing). Porting doesn't increase compression.

Stock LC135
Combustion Chamber Volume = 134.4cc/10.9(Compression Ratio)
= 12.33cc

Vixion Kit Compression (57mm piston dia)
= 149.78cc/12.33cc
= 12.14 Compression Ratio
91Octane above recommended

62mm kit = 177.2 cc/12.33cc
= 14.37 Compression Ratio
95octane rating recommended. Po

65mm kit = 194.78cc/12.33cc
=15.80 Compression Ratio
(Big Head upgrade, or polishing is not recommended but a must to prevent knocking) Polishing increases the head volume.

Compression ratio 2:1 3:1 5:1 10:1 15:1 20:1 25:1 35:1
Pressure ratio 2.64:1 4.66:1 9.52:1 25.12:1 44.31:1 66.29:1 90.60:1 145.11:1

im a bit confused with this.
compression ratio is the ratio of the total volume of the combustion chamber to the clearance volume.
CR = (Vt/Vc)
Vt = is the overall volume when the piston is at BDC (top of piston to the bottom of the head)
Vc = is the clearance volume when the piston is at TDC (top of piston to the bottom of the head)

a stock t135 has 135cc engine (134.4cc to be exact).. this is the displaced volume of the piston,, not the volume of the combustion chamber,, in reality, the value of the total volume is a bit higher than the volume displacement,


as per wikipedia,

"In a piston engine, it is the ratio between the volume of the cylinder and combustion chamber when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke."
http://en.wikipedia.org/wiki/Compression_ratio

just my 2 cents...

 

[ike]

paps magkano po b tong big head na to kasama po b ang block nito? complete set po b 2 thnks po ride safe

 

[Kershe]

Question lng mga bro, is the valve for sniper classic is the same for sniper mx? Tia

 

[botsok]

Question lng mga bro, is the valve for sniper classic is the same for sniper mx? Tia

the same bro..

btw, this is an english speaking section.