Hyper S-Stage N-20 Kit 181cc Big Throttle Body GROM

【SP Takegawa 01-05-0555 Hyper S-Stage N-20 Kit 181cc Big Throttle Body GROM Bore Up Engine Parts Takegawa】
■Product Description
The Hyper S-Stage N-20 Bore Up Kit (Big Throttle Body Specification) includes the S-Stage N-20 Bore Up Kit, FI-CON TYPE-e (injection controller), Big Throttle Body Kit (with connecting tube), and spark plug.

■Detailed Description
●S-Stage N-20 Bore Up Kit 181cc
This bore up kit allows you to change the displacement from the stock 124cc to 181cc by replacing the cylinder and piston.
When installed simultaneously with the FI-CON TYPE-e (injection controller), it achieves powerful output characteristics that differ from stock.
The cylinder adopts an all-aluminum ceramic-plated cylinder with excellent durability, airtightness, and heat dissipation.
The cylinder is equipped with an oil outlet boss for an oil cooler.
An M5 temperature sensor can be attached to the oil plug bolt. By using the SP Takegawa Compact LED Thermometer with M5 Temperature Sensor Set, you can measure the cylinder temperature.
Bore diameter 63mm. Stroke 57.9mm (stock).
The piston is standard for high-octane gasoline specifications.
Compression ratio with standard piston: 11.0:1.
●Sports Camshaft (N-20)
The optimal profile maximizes the performance of the stock cylinder head, improving output performance.
Installing it on a stock engine improves output in the high RPM range.
For the Sports Camshaft (N-20), removing the decompression parts from the stock camshaft and assembling them onto the sports camshaft will result in an auto decompression specification.
●FI-CON TYPE-e (Injection Controller)
When installing sports camshafts or muffler parts, the air-fuel ratio deviates significantly from the ideal, so it is necessary to correct the fuel injection time with the FI-CON.
Installation is possible by simply removing and connecting to the coupler of the genuine ECU.
The FI-CON TYPE-e has multiple data settings pre-installed by SP Takegawa to match SP Takegawa engine parts, so you can easily select, change, and modify setting data using a PC or smartphone according to your engine specifications.
The injection time adjustment range is a maximum increase of 5000μs and a maximum decrease of 7500μs, making it widely usable from stock displacement to bore-up vehicles.
It is equipped with monitoring functions for engine RPM, engine temperature, throttle opening, and injector opening/closing rate using a PC or smartphone, which is very convenient for setting.
●Big Throttle Body Kit (with connecting tube)
Kit composition: Big throttle body kit for stock cylinder head with big throttle body connecting tube (for connection to stock air cleaner box).
It maximizes the performance of the stock cylinder head and achieves high output.
You can enjoy engine characteristics that rev smoothly up to high RPMs.
Big throttle body bore diameter: φ34
The big throttle body kit includes a fuel injector ASSY. (00-00-0487).

■Compatible Models
HONDA
GROM (JC75-1000001～)

■Notes
*Images are for illustration purposes only. Includes products with different sizes and colors.
*Product design and specifications are subject to change without notice. Please be aware of this.
*When installing the SP Takegawa S-Stage bore-up kit, engine output and torque increase significantly, which increases stress such as twisting and deflection on the crankshaft. SP Takegawa recommends installing a crankshaft support adapter simultaneously to reduce the load on the crankshaft. The crankshaft support adapter enhances the durability of the crankshaft by adding support with a ball bearing at the end of the crankshaft flywheel side, thereby suppressing twisting and deflection.
*As this product is made to order, cancellations after ordering are not possible.
*This product is made to order, so delivery may take some time. Also, please note that the manufacturer may discontinue the product or change specifications without prior notice.