|
| * |
 |
| * |
|
| Development of lash adjuster type poncam for NA8 is completed. Realize
the performance in all range which is not in the past! |
| |
| * |
Realize the improvement of performance in all range |
| * |
The maximum output improved by 10PS |
| * |
Bolt on installation (with no modification) |
|
| |
|
* Click and see huge picture |
|
|
Matching
|
| Vehicle Model |
NA8 MIATA MX-5 All Vehicle |
| Engine Type |
BP-ZE |
| Model Year |
Jul. 1993 〜 Jan. 1998 |
|
|
|
IN.EX SET PRICE: |
$980.00 USD |
Part No. |
|
143053 |
IN UNIT PRICE: |
$490.00 USD |
1495252092 |
EX UNIT PRICE: |
$490.00 USD |
1496256095 |
|
| INFO. BROCHURE |
|
|
| |
PERFORMANCE
|
| * Examed and developed "NA Likeness" in all range. |
| - |
Quick Response |
- |
Great response which reacts to acclerator in an instant. |
| - |
Middle Range Stabilized and Flat |
- |
Smooth middle range |
| - |
Blow to High R.P.M. |
- |
Top range blow to red zone |
|
| * It can be used with the same feling as STD. |
| - |
Idling Stability |
- |
Compatible in performance and idling. |
| - |
Allophone Reduction |
- |
Tappet noise is controlled by high precision design. |
|
|
|
|
| |
INSTALLATION
|
| * Bolt On ： Show high performance only by easy cam exchange. |
| - |
Valve Spring Exchange Needless |
- |
Use of STD |
| - |
Valve Timing Adjustment Needless |
- |
It is proved by complete test. |
| - |
Head Modify Needless |
- |
Modifing of head is needless entirely. |
| - |
ECU STD Use |
- |
STD ECU also realizes high performance. |
|
|
|
|
| |
 |
SPEC |
|
|
* |
|
IN/EX |
Duration |
Lift |
Lobe Center Angle |
Base Circle |
TOMEI |
IN |
252° |
9.2mm |
110° |
φ33.6mm |
EX |
256° |
9.5mm |
110° |
φ34.2mm |
STD |
IN |
233° |
8.6mm |
110° |
φ36mm |
EX |
250° |
8.1mm |
110° |
φ36mm |
|
| |
The reason of BOLT ON installation |
|
|
|
Exclusion of Head Modifing |
| |
The other company's camshaft sets the standard circle size as φ35 and
maximum lift as 9.5mm. In this case, it may interfere in head and be needed
cam modification of cylinder head. In our company, it solved by seting
in the maximum lift radius of STD cam. Therefore, the criteria circle size
of poncam of our company set IN as φ33.6 and EX as φ34.2. Thereby, bolt
on installation is possible without modifing. |
|
Valve Timing Setting |
| |
We tested dozens of times on the engine dyno and the chassis dynamo. In
responses, torque, and power, set the great valve timing to achieve high
performance. To demonstrate high performance in the state of bolt on installation
without adjustment of valve timing. |
|
|
| |
|
By the test, experimented in various duration, lift, or valve timing.
Although the red line surpasses peak power, the blue line product "IN252°
type" surpasses with the output of middle range in the right graph.
In our company, high performance was caught all over range, and opted for
commercial production.
|
 |
Repeated Test Result |
| Decided which will be realize the idling stabilized and high efficient
in the whole range. |
IN252-9.2mm
EX256-9.5mm |
|
|
|
|
| |
 |
|
|
|
Click and see for NB8 before M/C |
| * |
|
|
|
| |
|
Copyright (C) 2009 TOMEI POWERED Inc. All
Rights Reserved. |
| |
