|
 |
|
|
ScienceofSpeed Forged Aluminum Pistons are
the most advanced forged pistons available for the NSX. Designed based
on years of development with the NSX power plant, these forged pistons,
manufactured from NSX-specific forgings, are designed to replace the
factory cast pistons with increased strength, decreased weight, and
increased performance from an advanced design.
Pistons are available in low compression (for turbocharger and
supercharger use), stock compression, and high compression (natural
aspiration use).
Pistons are available in popular 90.5mm size (compatible with factory
3.0L engines) and 93mm size (for sleeved 3.0L and 3.2L engines) -
however, custom bore sizes are available. |
|
|
|
 |
 |
|
|
|
piston information |
|
piston |
factory |
ScienceofSpeed
90.5mm |
ScienceofSpeed
93mm |
|
bore size |
3.0L: 90mm
3.2L: 93mm |
90.5mm |
93mm |
|
compression ratio |
10.2:1 |
8.5 - 13:1 |
8.5 - 13:1 |
|
material |
cast hypereutectic |
forged hypoeutectic |
forged hypoeutectic |
|
style |
full round |
strutted |
full round |
|
pin |
pressed |
floating (22mm) |
floating (22mm) |
weight -
piston & accessories |
538 grams (3.0L)
556 grams (3.0L) |
510 grams (9.2:1) |
525 grams (9.5:1) |
|
compression height: |
|
1.192" |
1.192" (stock)
1.153" (stroked) |
|
deck height range: |
|
8.720 - 8.712" |
8.720 - 8.712" |
|
|
|
|
design specifics: |
- 2618 hypoeutectic aluminum alloy
- fully CNC machined piston and ring
grooves
- radiused valve reliefs: compatible
with 3.0L and 3.2L valves, oversized for float protection
- offset pin boss: increased anti-rock
and noise reduction
- contact reduction grooves: minimizes
cylinder wall contact as pistons rock over after reaching TDC and aids
to reduce detonation
- accumulator groove: additional
volume between top and second ring aids to reduce pressure between top
and second ring
- pin oiling holes: machined holes
deliver lubrication to wrist pin
- forged in pockets: reduce piston
overall weight
|
|
optional skirt coating: |
|
Recommended optional Xylan skirt coating
is a proprietary molybdenum and graphite coating that offers scuff
protection and increased lubricity. Coating offers a much
higher strength adhesion and tensile strength compared to standard
molybdenum coatings. |
|
|
|
standard piston models: |
|
These pistons are our most popular.
However, custom bore sizes and compressions are available to your need. |
|
|
|
Type
A: 90.5mm factory 3.0L, factory stroke |
- 9.2:1 CR (forced induction: 500+
wheel horsepower)
- 9.5:1 CR (forced induction: 400-500
wheel horsepower)
- 10.2:1 CR (factory or forced
induction: up to 400 wheel horsepower)
- 11.5:1 CR (high compression)
|
|
Type B: 93mm resleeved 3.0L or 3.2L,
factory stroke |
- 9.2:1 CR (forced induction: 500+
wheel horsepower)
- 9.5:1 CR (forced induction: 400-500
wheel horsepower)
- 10.2:1 CR (factory or forced
induction: up to 400 wheel horsepower)
- 11.5:1 CR (high compression)
|
|
Type C:
93mm stroked ScienceofSpeed 3.5L |
- 9.2:1 CR (forced induction: 550+
wheel horsepower)
- 9.5:1 CR (forced induction: 450-550
wheel horsepower)
- 11.5:1 CR (high compression)
|
|
Custom: |
- any compression 8.5 - 13:1
- any bore size 90mm - 95.5mm
|
![230-005[1].jpg (47329 bytes)](/products/exhaust_airflow_products/NSX/CT-Engineering/exhuast/230-005[1]_small.jpg)
NSX, all years
