PRODUCT INFORMATION

4 THROTTLE CHAMBER
&
SURGE TANK KIT

Increased air mass flow by turbo tuning will become resistance if normal throttle and surge tank are used.
From these reasons behind,
- Review on the capacity and structure of surge tank to deliver the increased air mass flow to each combustion chamber effectively.
- to stabilize the even air suction system to each combustion chamber by having quadruplet throttle.
By solving these issues, it's made possible to produce smooth/ powerful force and torque in addition to clear engine responsiveness at high/middle revolution range.

Car Type	Model	Engine Model	Price	Remarks
SILVIA/180SX	(R)PS13	SR20DET	278,000Yen	ReSetting
SILVIA	S14	SR20DET	283,000Yen
SILVIA	S15	SR20DET	283,000Yen

*	Using incompatible engine control unit with this product will cause the damages on engine itself, therefore, please ask your creditable tuner for engine control unit for the assured setting before using this product.
*	Upon ordering this product, please let us know the top feed injector maker that you are using. Ex) DENSO or JECS

Kit specification

-Surge tank x1 (3,000cc inlet diameter phi80)
-Throttle x2 (phi 45)
-Throttle linkages
-Delivery pipe x(50cc)
-AAC tank x1(200cc)
-Negative pressure hose
-Hose band
-Gasket
-Bolts and Nuts

Caution

ECU requires resetting after installing this product

Piping work is required for surge tank area

Battery size requires to be changed

Genuine throttle wire can be used

The design registration for SR turbo engine has been completed

Regulator requires to be changed to movable type(sold separately)

Change the ejector to high-resistance top feed type (sold separately) (JECS/DENSO, 10.45mm/10.90mm)

In case of using low-resistance injector, dropping resister is required. (sold separately)(ex: CA18 genuine)

Deliver pipe fuel hose fixing area can be changed from standard nipple type to EARLS fitting (sold separately)

[ 4 THROTTLE CHAMBER & SURGE TANK KIT ]

Surge tank content has been set to 3000cc which is appropriate for high-speed driving, after testing blow back and effects of pulsation. Funnel structure has been adopted inside surge tank to have smooth air flow. Throttle valve shall be phi 45 butterfly type (setting for phi 48 is also available). Flow of inhaled air is good at partial area and it can prevent the "leaking" caused pressure of air at turbo engine. Additionally, the responsiveness would be is focused by having the shorter distance from throttle to valve( length of inlet pipe). 4-throttle's metering is accurate and good at responsiveness, while multi throttle is appropriate for middle/high speed type of engine. Due to high degree of freedom of inlet system and easy handling of manifold, piping resistance can be decreased. Piping operation is required on surge tank entry side, however, the operation is made easy by attaching the fuel delivery, ACC tank, negative-pressure hose, and gaskets. We have stocks all the time in order to provide full support after purchase. This satisfy car inspection requirement in Japan. As you might see above lists, our "4 throttle chamber and Surge tank kit" (Registered design) will be the final weapon for SR engine tune. Please try to feel our 4 throttle.

Glossary
- Pulsation wave---	There will be 2 waves, the wave which tries to get in and the other is the wave which tries to return, when increasing the amount of intake air. Effected by this, there will be the high area and low are of air density.
- Inertia supercharging---	The volumetric efficiency will be raised by opening the valve at the high density area and the air flows into the cylinder swiftly, taking advantage of this pulsation wave.

Corresponding list for 4 THROTTLE CHAMBER and SURGE TANK KIT categorized by car type
NISSAN
	SILVIA / 180SX PS13	SILVIA S14	SILVIA S15

*The installation instructions for our products are written in Japanese.*