TMB
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| posted on 20/2/25 at 07:01 PM |
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Yamaha 5VY from YZF R1 vs FZ1
Hi, I’ve just bought a new engine for my project and I was comparing it to my R1 engine.
The engine is a 5VY from a 2010 FZ1, the engine I’ve got to compare it to is a 2005 5VY R1 engine.
150hp vs 172hp.
What’s the difference between the two?
Exhaust manifolds, R1 to the left, ZF1 to the right.
R1 got 4-1 with the EXUP close, the ZF1 got a 4-2-1 system, a bit on the heavy side when it comes to weight.
Dimensions of the primary pipes are the same.
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TMB
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| posted on 20/2/25 at 07:05 PM |
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Airbox.
R1 to the left, FZ1 to the right.
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TMB
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| posted on 20/2/25 at 07:10 PM |
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Intake runners length.
R1 36mm length
FZ1 6mm length
As you can see, the R1 is pure top RPM, while the FZ1 with its 4-2-1 exhaust and longer intake pipes is a compromise to get some at midrange rpm.
So it’s possible to mix some parts to get a hybrid if one need more torque and power earlier in the rpm range.
[Edited on 20/2/25 by TMB]
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