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Hi There,
Just been looking in the Yamaha parts catalogs:
Interseting points about the FZ6 engine and its donor R6 engine:
Description FZ6 Part Number R6 Part Number
Cam sprocket bolts 90105-07004-00 90105-07342
Cam sprockets 5VX-12176-00-00 5EB-12176-00
Cam shaft 1 5VX-12170-00-00 5SL-12170-00
Cam shaft 2 5VX-12180-00-00 5SL-12180-00
Timing chain 94591-49120-00 94591-49120
Timing tensioner assembly 5SL-12210-10-00 5SL-12210-10
Timing rotor 5VX-81673-00-00 5SL-81673
Crankshaft 5SL-11411-00-00 5SL-11411-00-00
Rod assembly 5SL-11650-00-00 5SL-11650-00-00
Piston 5SL-11631-00-00 5SL-11631-00-00
Rings 5SL-11603-00-00 5SL-11603-00-00
Head Gasket 5VX-11181-00-00 5SL-11181-00-00
Rocker Cover Gasket 5SL-11193-00-00 5SL-11193-00-00
Intake Valve 5EB-12111-00-00 5EB-12111-00-00
Exhaust Valve 5SL-12121-00-00 5SL-12121-00-00
Intake outer valve spring 5EB-12114-00-00 5SL-12114-00-00
Intake inner valve spring 5EB-12113-00-00 5SL-12113-00-00
Exhaust Valve spring 5EB-12124-01-00 5EB-12124-01-00
Valve shim (1.20) 1HX-12168-00-00 1HX-12168-00-00
Cylinder Head Assembly 5VX-11101-00-00 5SL-11101-00-00
So it appears a "5VX" is an FZ6, a "5SL" is an R6 have no idea what a "5EB" is ???
Yamaha claim:
R6:12.4 compression ratio, 117hp @13,000rpm and 66.4nM torque @ 12,000rpm
FZ6:12.2 compression ratio,98hp @12,000rpm and [email protected],000rpm
I beleive the Cam shafts accounts for most of the power/torque gains for the R6, I have no idea why it has different cam sprockets (connection betweeen cam and sprocket, might explain the different bolt) The rods, piston,rings,valves,valve springs and crank shaft are all the same, The head gasket is different (might explain the slightly higher compression ratio) SO I think the only diffrenece with the head is the colour!
The injection seems to be a big difference but I dont think the later "group" type injection that debuted on the FZ6 could make less power than the piston suction type on the current model R6. Rumour has it that the 2006 R6 is going to have the same group injection system as the FZ6 and I dint think Yamaha would be de-tuning a supersport machine.
The timing must be different on the FZ6, as timing rotor has 8 legs on an FZ6 and the R6 only four, so the ECU and iginition signals must be very different.
Anyway, slap in some R6 cam shafts and head gasket, and you should have 117hp and 3 more nM's!!!
Anyone know:
1. What model a "5EB" is cause the FZ6 has lots of its parts.
2. Better knowledge of R6 throttle bodies and the FZ6 ones ?
3. Any other diffrences, like airbox volume flows...etc ???
Cheers,
Byron.
Just been looking in the Yamaha parts catalogs:
Interseting points about the FZ6 engine and its donor R6 engine:
Description FZ6 Part Number R6 Part Number
Cam sprocket bolts 90105-07004-00 90105-07342
Cam sprockets 5VX-12176-00-00 5EB-12176-00
Cam shaft 1 5VX-12170-00-00 5SL-12170-00
Cam shaft 2 5VX-12180-00-00 5SL-12180-00
Timing chain 94591-49120-00 94591-49120
Timing tensioner assembly 5SL-12210-10-00 5SL-12210-10
Timing rotor 5VX-81673-00-00 5SL-81673
Crankshaft 5SL-11411-00-00 5SL-11411-00-00
Rod assembly 5SL-11650-00-00 5SL-11650-00-00
Piston 5SL-11631-00-00 5SL-11631-00-00
Rings 5SL-11603-00-00 5SL-11603-00-00
Head Gasket 5VX-11181-00-00 5SL-11181-00-00
Rocker Cover Gasket 5SL-11193-00-00 5SL-11193-00-00
Intake Valve 5EB-12111-00-00 5EB-12111-00-00
Exhaust Valve 5SL-12121-00-00 5SL-12121-00-00
Intake outer valve spring 5EB-12114-00-00 5SL-12114-00-00
Intake inner valve spring 5EB-12113-00-00 5SL-12113-00-00
Exhaust Valve spring 5EB-12124-01-00 5EB-12124-01-00
Valve shim (1.20) 1HX-12168-00-00 1HX-12168-00-00
Cylinder Head Assembly 5VX-11101-00-00 5SL-11101-00-00
So it appears a "5VX" is an FZ6, a "5SL" is an R6 have no idea what a "5EB" is ???
Yamaha claim:
R6:12.4 compression ratio, 117hp @13,000rpm and 66.4nM torque @ 12,000rpm
FZ6:12.2 compression ratio,98hp @12,000rpm and [email protected],000rpm
I beleive the Cam shafts accounts for most of the power/torque gains for the R6, I have no idea why it has different cam sprockets (connection betweeen cam and sprocket, might explain the different bolt) The rods, piston,rings,valves,valve springs and crank shaft are all the same, The head gasket is different (might explain the slightly higher compression ratio) SO I think the only diffrenece with the head is the colour!
The injection seems to be a big difference but I dont think the later "group" type injection that debuted on the FZ6 could make less power than the piston suction type on the current model R6. Rumour has it that the 2006 R6 is going to have the same group injection system as the FZ6 and I dint think Yamaha would be de-tuning a supersport machine.
The timing must be different on the FZ6, as timing rotor has 8 legs on an FZ6 and the R6 only four, so the ECU and iginition signals must be very different.
Anyway, slap in some R6 cam shafts and head gasket, and you should have 117hp and 3 more nM's!!!
Anyone know:
1. What model a "5EB" is cause the FZ6 has lots of its parts.
2. Better knowledge of R6 throttle bodies and the FZ6 ones ?
3. Any other diffrences, like airbox volume flows...etc ???
Cheers,
Byron.