Post by gy6fandan on Jul 12, 2014 16:59:00 GMT -6
This is my 3rd cylinder head change - long story short.
Looking at upgrading to a High Performance Big Port Valve Head - Sooooooo, the questions and my
bike specs ar as follows:
QUESTIONS :
whats the ultimate cost to me ?
1.) GY6 150cc High Performance Big Port Valve Head = $73.00
2.) 8MM EXHAUST STUDS AND NUTS = $8.00
***SO FAR.
However, will I need
:
1.) Bigger carb = $??.??
2.) Bigger intake port = $??.??
3.) Bigger - performance exhaust = $??.??
4.) performance camshaft (A8 or A9) = $??.??
If a new cam shaft what about a new chain = $??.??
Other unknown important info :
1.) Valve gap - in & out
MY EXISTING SPECS:
VARIATOR : MOTORIO DUAL RAMP (SHORT & LONG RAMPS) 115 MM FACE PLATE & FAN
VARIATOR WEIGHT(S) **[SLIDERS] 13 (IN "L" RAMP") / 17 GRAM (IN "S" RAMP)
FINAL GEARS : 15/36 -- ( ORIGINAL GEAR RATIO WAS ......13 / 40 ) - I DID NOT KNOW ORIGINAL PRIOR TO ORDERING NEW GEARS
CLUTCH : STOCK WITH 1500 RPM CONTRA / CLUTCH SHOE SPRINGS ARE STOCK
CDI : UPGRADED TO A RACING WITH NO REV LIMIT
IGNITION COIL : UP GRADED TO A PERFORMANCE COIL
CARBURATOR : STOCK / PDJ24 - 24MM ( JETS ; STOCK -- FLOAT LEVEL CHANGED TO XXMM)
FUEL PUMP DUAL OUTPUT - VACUUM ACTUATED (LISTED AS FUEL PUMP FOR JET SKIES TO FEED 4 CARBS)
AIR SUPPLY : AIR BOX REMOVED AND REPLACED WITH UNI FILTER / RACING STYLE
P.A.I.R. / EGR REMOVED AND BLOCK OFF PLATE INSTALLED
BATTERY : DUAL "AGM" BATTERIES TIED IN PARRELELLE ( ONE 7 AMPH / ONE 9 AMPH ) = 8 AMP AVG
REAR TIRE : (ORINAL WORE FLAT IN 6,000 MILES - WAS FAULTY / UNBALLANCED / LEAKED ) REPLACED WITH
SHINKO SR429 - Tire Size: 130/60-13 - Position: Front/Rear, Tire Ply: 4, Speed Rating: L (TREAD DEPTH = 5.7MM = .224")
VACUUM LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE
FUEL LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE
Looking at upgrading to a High Performance Big Port Valve Head - Sooooooo, the questions and my
bike specs ar as follows:
QUESTIONS :
whats the ultimate cost to me ?
1.) GY6 150cc High Performance Big Port Valve Head = $73.00
2.) 8MM EXHAUST STUDS AND NUTS = $8.00
***SO FAR.
However, will I need
:1.) Bigger carb = $??.??
2.) Bigger intake port = $??.??
3.) Bigger - performance exhaust = $??.??
4.) performance camshaft (A8 or A9) = $??.??
If a new cam shaft what about a new chain = $??.??
Other unknown important info :
1.) Valve gap - in & out
MY EXISTING SPECS:
VARIATOR : MOTORIO DUAL RAMP (SHORT & LONG RAMPS) 115 MM FACE PLATE & FAN
VARIATOR WEIGHT(S) **[SLIDERS] 13 (IN "L" RAMP") / 17 GRAM (IN "S" RAMP)
FINAL GEARS : 15/36 -- ( ORIGINAL GEAR RATIO WAS ......13 / 40 ) - I DID NOT KNOW ORIGINAL PRIOR TO ORDERING NEW GEARS
CLUTCH : STOCK WITH 1500 RPM CONTRA / CLUTCH SHOE SPRINGS ARE STOCK
CDI : UPGRADED TO A RACING WITH NO REV LIMIT
IGNITION COIL : UP GRADED TO A PERFORMANCE COIL
CARBURATOR : STOCK / PDJ24 - 24MM ( JETS ; STOCK -- FLOAT LEVEL CHANGED TO XXMM)
FUEL PUMP DUAL OUTPUT - VACUUM ACTUATED (LISTED AS FUEL PUMP FOR JET SKIES TO FEED 4 CARBS)
AIR SUPPLY : AIR BOX REMOVED AND REPLACED WITH UNI FILTER / RACING STYLE
P.A.I.R. / EGR REMOVED AND BLOCK OFF PLATE INSTALLED
BATTERY : DUAL "AGM" BATTERIES TIED IN PARRELELLE ( ONE 7 AMPH / ONE 9 AMPH ) = 8 AMP AVG
REAR TIRE : (ORINAL WORE FLAT IN 6,000 MILES - WAS FAULTY / UNBALLANCED / LEAKED ) REPLACED WITH
SHINKO SR429 - Tire Size: 130/60-13 - Position: Front/Rear, Tire Ply: 4, Speed Rating: L (TREAD DEPTH = 5.7MM = .224")
VACUUM LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE
FUEL LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE