NAG Crankcase Pressure Relief

NAG Crankcase Pressure Relief Valves

[Crankcase internal pressure controller & blow off valve]

[Development diary]

[Impression]

[Explanation]

[Q&A]

In most internal combustion engines, it is best to maintain pressure within the engine crankcase below atmospheric pressure thereby reducing leaks through gaskets and seals from the crankcase to the atmosphere. And so as not to rob any horsepower driving the unnecessary air pump created by piston movement. You do not want the crankcase vacuum to be excessive, which would cause out side air and debris to be pulled through any worn crankcase seals or gaskets. The NAG Crankcase Pressure Relief Valves maintain a slight crankcase vacuum and maintain a negative vacuum at any engine speed or load.

The addition of a Blow off valve will eliminate the slight leanness created with the pressure increase in the air box while under braking. This device will blow off the excess pressure.

When by the ram pressure specification motorcycle, the crankcase internal pressure controller is selected, please verify the below-mentioned contents and select.

Example 1) For in town riding, an some highway at normal speeds.
(First only the crankcase internal pressure controller. As for the blow off valve for the street, consider as additional purchase. )

Example 2) For use on the race circuit for track days and schools while still riding the machine for transportation.
(Crankcase internal pressure controller and blow off valve for street recommendation. )

Example 3) When used for race circuit exclusively use the models for race only specification.
(Crankcase internal pressure controller and blow off valve for race/lace recommendation. )

Example 4) When used for race circuit exclusively use the models for race only specification. If participating in championship races and need for most functionality (Check local rules which may prohibited the use of any device which requires OEM air box modification..
(Air shot functional equipped crankcase internal pressure controller and blow off valve for race/lace recommendation. )

Crankcase internal pressure controller model exclusive use (It is enabled with the single item, but, combined use with the blow off valve is effective in the ram pressure car)
	Product code	Application model	Remark
	NAG01-101R NAG01-101B NAG01-101G NAG01-101S	For DUCATI 999/999S/900SS/ST2/916R 996R/748R/749R/ST4S/S4R MultiStrada1000DS/SS1000DS Monster 400/F4	Breather tower (Blow off valve combined use is recommended to the ram pressure car) The color are 4 types. Red, black and [shiyanpengorudo], oxalic acid
	NAG01-111R NAG01-111B NAG01-111G NAG01-111S	For DUCATI 1098	Breather tower (Blow off valve combined use is recommended to the ram pressure car) The color are 4 types. Red, black and [shiyanpengorudo]
	NAG01-103	MOTO GUZZI In case of [chiyuntauro] (NAG01-009)	There is a oil erupting prevention effect The installation place changes with the presence of remodelling. Please be sure to do to inquire.
	NAG01-104	VTR1000F exclusive use	For 16φ street
	NAG01-105	VTR1000SP1/SP2 exclusive use	VTR1000SP1/SP2 exclusive use for 12φ street (Blow off valve combined use is recommended) Adaptation item turn NAG03-104
	NAG01-106	Z1000 exclusive use (04)	For 12φ street (NAG01-012) + (NAG00-010)
	NAG01-107	Harley FX/DX	Breather pipe In the type which is not the rubber hose joint in opening Set of ramming down joint
	NAG01-108	The tuning car of APE and the like For street under 100cc	9φ HONDA type adapter 9φ controller (NAG00-002) + (NAG01-009)
	NAG01-109	The tuning car of APE and the like For street above 100cc	12φHONDA adapter 12φ controller (NAG00-001) + (NAG01-012)
	NAG01-109R	The tuning car of APE and the like For race/lace above 100cc (For circuit travelling)	12φ HONDA type adapter 12φ controller (NAG00-001) + (NAG01-012R)
	NAG01-110R	CBR600RR (07) exclusive use	For circuit You install with volt/bolt on, possibility The NAG02-04 blow off valve is jointly used
Crankcase internal pressure controller (It is enabled with the single item, but, combined use with the blow off valve is effective in the ram pressure car) When there is no application model, please measure the inside diameter of the breather hose and choose optimum size.
	Product code	Application model	Remark
	NAG01-102	ZRX1100/1200 CRF450 ER-6F (06)	Breather hose inserting section diameter 12φ→10φ Street exclusive use The grommet of the photograph became abolition.
	NAG01-009	APE50/100 CUB RTL250S RTL250F KXF250 (07) MOTO GUZZI ([chientauro]) Zepher 400χ ([kai]) Address V50	Breather hose inserting section diameter 9φ Street exclusive use
	NAG01-012	FTR223 TW250 FJ1200 [sero] 250 (05) XJ750E/A (81) /XJR1200 GSX-R1000/600 DR800/DR650SE (cell attachment) SV400/SV650 GSX-1100S sword GS400 (under HiAce 97HED) Z1-R KSR110 GPZ900R 900RS Z1/750RS Z2 SPADA VMAX CBR900RR (98) BMW R80G/S /BMW R100 TL1000 VOR450 CRF250R (07) Address 125V	Breather hose inserting section diameter 12φ Street exclusive use (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-012R	YZ250F	Breather hose inserting section diameter 12φ For circuit (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-012S	XJR1200 (air cooling) ZRX1200R (04) Goose 350	Breather hose inserting section diameter 12φ Street private short type (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-014	SRX400/SRX400 (cell attachment) SRX600/SRX600 (cell attachment) ZX-6R (05-06) KLX250 Husqvarna SM450R CBX250S (4 cylinders) VTR250 CBR600RR (03-06) CBR1000RR (04-07) RC30 R-1 (00) ZX10R (07)	Breather hose inserting section diameter 14φ Street exclusive use (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-014R	-	Breather hose inserting section diameter 14φ For circuit (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-016	SR400/500 ZX-6R (07) ZR1100 (98) C2 ZX-12R (00-02) AGUSTA F4 GASGAS 450EL SUPER SHERPA SV1000S	Breather hose inserting section diameter 16φ Street exclusive use (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-016R	-	Breather hose inserting section diameter 16φ For circuit (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-018	-	Breather hose inserting section diameter 18φ Street exclusive use (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-018R	-	Breather hose inserting section diameter 18φ For circuit (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-020	DUCATI bevel TYPE TRX850 BMW R1150	Breather hose inserting section diameter 20φ Street exclusive use (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-020R	-	Breather hose inserting section diameter 20φ For circuit (Blow off valve combined use is recommended to the ram pressure car)
	NAG01-112RR	Ram pressure specification car RACE	Breather hose inserting section diameter 12φ For circuit Air shot mechanism is jointly used. The SET part of NAG04-112 and NAG04-112R Note: You cannot use with the single item.
	NAG01-114RR	Ram pressure specification car RACE	Breather hose inserting section diameter 14φ For circuit Air shot mechanism is jointly used. The SET part of NAG04-114 and NAG04-114R Note: You cannot use with the single item.
Blow off valve
	Product code	Trade name	Remark application model
	NAG02-01	Blow off valve STREET	For street (Sport travelling of circuit)
	NAG02-02	Blow off valve RACE	For race/lace If (it is the even place, the top and bottom, left and right, Approximately you install with any direction, possibility. )
	NAG02-03	Blow off valve Halley exclusive use	[kuriakinkurina] box [hare] all type
	NAG02-04	Blow off valve RACE	CBR600RR (07) for 15φ race/lace
	NAG03-102	Blow off valve STREET Adapter SET	RAM specification car For street BUELL DUCATI (Sport travelling of circuit) Boring the hole through the RAM BOX, the type which it inserts
	NAG03-103	Blow off valve STREET Adapter SET 13φ	RAM specification car For 13φ street (Sport travelling of circuit) In RAM BOX drain installation valve major diameter 13φ
	NAG03-104	Blow off valve STREET Adapter SET 14φ	RAM specification car For 14φ street (Sport travelling of circuit) In RAM BOX drain installation valve major diameter 14φ
Installation adapter (small part)
	Product code	Trade name	Remark application model
	NAG00-001	12φ oil filler cap AD	HONDA (based engine 50cc) For race/lace above 100cc M20*2.5
	NAG00-002	9φ oil filler cap AD	HONDA (based engine 50cc) For street under 100cc M20*2.5
	NAG00-004	[supeisa] for VB type standard cab	For [hare] VB type standard cab Simple RAM system usage time (FXDX and the like) Reaction late measure of [akuseruon] off
	NAG00-005	Joint for [hare]	[hare] The car which is not the removal of the breather pipe 輌 business
	NAG00-006	Funnel	(03-04 previous term) BUELL XB RAM pressure specification car
	NAG00-007	12φT letter joint	When breather pipe 2 is collected to one,
	NAG00-008	14φT letter joint	When breather pipe 2 is collected to one,
-	NAG00-009	20φT letter joint	When breather pipe 2 is collected to one,
	NAG00-010	12φT letter joint (one side [mekura])	As the passage of L type to use, one side [mekura] In Z1000 enabled
	NAG00-011	Blow off valve adapter	The SET part of NAG03-102 BUELL DUCATI
	NAG00-012	Blow off valve adapter 13φ	The SET part of NAG03-103 For 13φ street
	NAG00-013	Blow off valve adapter 14φ	The SET part of NAG03-104 For 14φ street
(Ram pressure specification car exclusive use) crankcase internal pressure controller + blow off valve SET
	Product code	Application model	Remark
	NAG04-112	GSXR600R/1000R R6/R1 (04)	By opposite car for 12φ street If (it is sport travelling, this SET) Air shot mechanism is jointly used.
	NAG04-112R	GSXR600R/1000R R6/R1 (04)	For 12φ circuit Air shot mechanism is jointly used.
	NAG04-114	CBR600RR (03-06) CBR1000RR (04-06)	By opposite car for 14φ street If (it is sport travelling, this SET) Air shot mechanism is jointly used.
	NAG04-114R	CBR600RR (03-06) CBR1000RR (04-06)	For 14φ circuit Air shot mechanism is jointly used.
-	NAG04-103	VTR1000SP1/SP2	For 12φ street NAG01-105+NAG03-104 As for air shot mechanism state of standard So you use.
	NAG04-104	DUCATI999R and the like (RAM car)	With RAM specification car 輌 for street If (it is sport travelling, this SET)
	NAG04-105	DUCATI999R and the like (RAM car)	With RAM specification car 輌 for circuit
-	NAG04-106R	CBR600RR (07)	Private design
Other SET
	Product code	Trade name	Remark application model
	NAG05-101	Blow off valve and funnel SET For street	(03-04 previous term) BUELL XB RAM pressure specification car
	NAG05-101R	Blow off valve, funnel SET For crank internal pressure controller race/lace	(03-04 previous term) BUELL XB RAM pressure specification car
	NAG05-102	The adapter SET for FCR41	For FCR41

Notice
Depending upon the difference and the like of climate, because the emulsion (the milk white the oil which is made turbid) there are times when it is easy to be attached in the blow-by, please check occasionally. Care method, with washing oil such as [patsukurina] and gasoline and kerosene is OK with the circular washing. It is not necessary to disassemble. Case the hose has deteriorated, please change into the new item. Those where the crack appears into the especially inner wall, peeling off, become operation defective.