D16y8 vs D16z6
#1
D16y8 vs D16z6
Just wanted to do a D16 comparison.
I was wondering if you guys can add some things to the pros vs cons list that I was making for these two motors. I was looking at them in relation to my '96 Si. I'd like to know what the real differences are between the two. Obviously I might be wrong on a few, but please feel free to correct it.
D16y8:
Pros:
- many aftermarket parts
- easy and low cost to repair
- reliably boosted at low psi
- low cost replacement (~$500)
- can keep OBD2 ECM for '96 Si
- better flowing intake manifold design
- better flowing exhaust manifold
Cons:
- can't tune OBD2
- weak oil pump
- weak rod bearings
- boost can be risky due to above
- worse head design
D16z6:
Pros:
- OBD1 can be tuned
- many aftermarket parts
- easy and low cost to repair
- stronger oil pump
- stronger rod bearings
- can handle more boost, more reliable to boost
- low replacement cost (~$500)
- better head design
Cons:
- slightly less power that y8
- need to get OBD1 ECM
- need to get harness for OBD2-OBD1 conversion
- more restrictive intake manifold design
- more restrictive exhaust manifold design
What else?
I was wondering if you guys can add some things to the pros vs cons list that I was making for these two motors. I was looking at them in relation to my '96 Si. I'd like to know what the real differences are between the two. Obviously I might be wrong on a few, but please feel free to correct it.
D16y8:
Pros:
- many aftermarket parts
- easy and low cost to repair
- reliably boosted at low psi
- low cost replacement (~$500)
- can keep OBD2 ECM for '96 Si
- better flowing intake manifold design
- better flowing exhaust manifold
Cons:
- can't tune OBD2
- weak oil pump
- weak rod bearings
- boost can be risky due to above
- worse head design
D16z6:
Pros:
- OBD1 can be tuned
- many aftermarket parts
- easy and low cost to repair
- stronger oil pump
- stronger rod bearings
- can handle more boost, more reliable to boost
- low replacement cost (~$500)
- better head design
Cons:
- slightly less power that y8
- need to get OBD1 ECM
- need to get harness for OBD2-OBD1 conversion
- more restrictive intake manifold design
- more restrictive exhaust manifold design
What else?
#7
RE: D16y8 vs D16z6
I don't think the oil pump is the problem with Y series, it's small oil passages. Also I don't know about the Z6 oil pump either.
They both make about the same power. 2HP is negligible.
No ODB converting is necessary with the Z6 if you just get the OEM harness (which may be included with the swap, as well as the ECU).
You're right about the stock exhaust manifolds.
The head design is better on the Z6 from what I've seen, but the Y8 intake manifold is better than the Z6.
Will add more later, gotta run.
They both make about the same power. 2HP is negligible.
No ODB converting is necessary with the Z6 if you just get the OEM harness (which may be included with the swap, as well as the ECU).
You're right about the stock exhaust manifolds.
The head design is better on the Z6 from what I've seen, but the Y8 intake manifold is better than the Z6.
Will add more later, gotta run.