Dacht dat de blacktop wat lichter en wat sterker was... Maar de precieze verschillen moet ik even naar opzoek... Moment
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edit: klok, klepel dus...
Silvertop heeft een sterkere krukas, en kan daardoor lastiger hogere toeren draaien... Blacktop is dus wat makkelijker op toeren te krijgen en de krukas is wat beter gebalanceerd...
Silvertop AFM Sensor, Blacktop MAP sensor...
Blacktop heeft ODB II, Silvertop TCCS...
quote:
Blacktop changes over facelift silvertop.
Intake...
-Airbox, larger capacity and bigger entrance.
-Trumpets are now made of rubber (silvertop are plastic), and are bigger in diameter (approximately the same length)
-TB now have a 45mm butterfly as opposed to the 43mm of the silvertop.
-TB's have a taper to the floor of the TB which mates into a taper in the manifold. IE TB to manifold face the TB looks like a D with the bottom of the TB filled in. Silvertop TB's have no taper in the floor, floor taper only occurs in the manifold.
- Manifold has slightly different shape to port entrance. A smoothing of the teardrop shape as introduced on the facelift silvertop. Ports are also bigger.
- Vacuum balancel now cast into the face of the manifold. Silvertop runs with an external collector based under the TB's.
- Blacktops are MAP sensored whereas Silvertops run AFM.
HEAD...
- Bigger intake port.
- Small port dividers. Silvertop has none.
- Open combustion chamber, silvertop has squish bands on both inlet and exhaust. (closed combustion chamber)
- Exhaust port is approximately 20% bigger in volume than the Silvertop.
- Cam Bucket fences are remoulded to hold more oil, but appear to allow for more cam lift.
- Additional support ribbing from sparkplug holes to cambearing platforms.
- Inlet cam has slightly more lift.
- Anyone cc'ed the combustion chambers?
INTERNALS.
- Same Crank. Based upon P/N. Also viewing cranks.
- Rods, noticeably lighter, smoother radiuses on all projections/ joins.
- Pistons have smaller valve relief’s in surface. Silvertop has 5 pronounced valve releases, Blacktop only 3 intake are visible. 2 Exhaust do not exist.
BLOCK....
- Blacktop uses a hydrolic cam belt tensioner whereas the Silvertop uses a spring arrangement.
GENERAL...
Exhaust manifold is much larger to mate to the larger exhuast ports.
Compression ratio raised to 11:1 from 10.5:1 on the silvertop.
Al met al denk ik dus dat silver/blacktop in goede staat weinig uitmaakt
Don't put something in your mouth unless you're happy to swallow...
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