Blow Off Valves, Misc Items & Tools


Call 937-753-1042 for Sales and Service

Crank Vents - STOP Oil Smoking


Crankvent kit for DSM & EVO8


Crank vents installed at PCV valve & VCV

Crank Vents solve the problem of smoking and pressure buildup in the engine during boost due to pressure entering thru the PVC valve. These devices are one-way valves that can stop 1000psi. The big one goes between the manifold and PVC valve (shown on left) to stop boost from entering the engine.  The small one goes on the valve cover vent to pump air out (not in), building a vacuum in the crankcase. This results in more horsepower (stop pumping air below the piston).  If your dip stick pops out under boost, this problem may be cured also.

Small Crank Vent Kit for EVO & DSM -  $109.95
Large Crank Vent Kit for 3S-  $129.95

BOV-F

BOV adapter fits the stock DSM 2g, 3S and EVO Upper IC  Pipes  to adapt an aftermarket BOV



overview

Fit a  DSM-1g, Greddy or Blitz BOV to your stock 2g,3S or EVO Upper IC pipe.  Powder coated in black only .
BOV Brand
BOV-F $25

Gasket & Bolts & Nuts for BOV-DSM-1g -  $4


 

BLOW OFF VALVES (Compressor Bypass Valves)
 


Greddy RS shown with 34mm recirc tube and BOV-F adapter



HKS SSV


HKS to 1gDSM Adapter


DSM 1g BOV


EVO9 BOV


Blitz Super Sound


Tial BOV


TurboXS RFL

If you plan to "dump" or vent your BOV to atmosphere (instead of recycling into the Turbo) while using your stock MAS,  you will encounter some problems.   The DSM MAS measures air going thru it and the ECU (car's computer) calculates the amount of fuel to add.  If you "dump" this air instead of re-circulating it into the intake, the computer will add too much fuel and you'll probably see a puff of black smoke behind you.  Also since the RPM drops FAST, if you leave the clutch in too long, your ECU may not be able to pick up idle and the engine may die.  Before you buy a BOV that "dumps" (HKS SSV, Turbo XS, Tial or Apex'i),  we recommend you try "dumping" on your car with your present BOV by  removing the BOV recirc hose, plugging the intake return tube with a film can or covering with duct tape, and drive the car.
 
 Greddy Type RS  $229
 34mm recirc tube for Greddy Type RS  $25
HKS Super SQV  New style -  $215
  Adapter mounts HKS BOV to 1gDSM flange (with clip & O-ring) HKS/1g $49.95
 Mitsu DSM 1g BOV New  $99.95
 Mitsu EVO9 BOV New  $129.95
 Blitz Super Sound   $189.95  This BOV does NOT re-circulate into the Intake Pipe
Color
Tial BOV $224.95  A steel flange for the Upper IC pipe is included with the BOV. This BOV does NOT re-circulate into the Intake Pipe. Comes with 9# spring (7&11# available)
TurboXS RFL  $174.95 This model does NOT re-circulate into the Intake Pipe



 

1g DSM BOV (Air Bypass Valve) Leak Stop Kit


Overview



5 Times better sealing than a crushed BOV  -  See test data page  Many new DSM BOV's leak boost pass the valve stem. This modification seals this leak when over 15psi.     
To seal we want no boost pressure under the BOV diaphragm until the TB closes - then we want full boost to open the valve.  The solution is:

1-drill and tap a hole in the side of the BOV flange to intersect the small hole in the valve's flange bottom (which goes vertically to the underside of the diaphragm), insert a 1/8" hose fitting and seal the hole in the flange bottom with a 10-32nf set screw.

2- now we have to switch the pressure to this fitting between atmospheric pressure when manifold pressure = boost, and boost pressure when manifold pressure drops.  We do this with a small 3-way - pilot pressure operated valve, using the manifold pressure to operate the pilot. (activate the valve) It requires 15psi to switch.  So with pilot (manifold) pressure less than 15psi the valve sends boost pressure (from a tap in the intercooler piping) to the underside of the diaphragm to operate it normally, and at boost over 15psi the valve switches, venting the diaphragm's underside and sealing the BOV. 

Leak Stop Kit  The kit consists of a valve (which can mount under the hood on the inner fender next to the passenger fuse box), all fittings and hoses to connect up to your BOV Picture shows the blue valve and hoses connected to a 1g DSM BOV. 


 BOV-LSK - $49.95

We will also modify your 1g BOV and install the hose fitting & set screw or we can mod a new BOV.  If ordered with the Leak Stop Kit, it will be shipped as shown in the top photo.

 BOV-DSMOD - $9.95

 

EGR Blockoff plate


EGR1

EGR2

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  Blockoff the EGR Valve with this plate (fits all Mitsu cars) EGR1 - $9.95

  Blockoff the EGR tube to the Intake manifold on 3S cars with this plate EGR2 - $7.50

 

Aluminum Porting Cutter


Overview

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This Clog-Free Carbide Burr Tool has a chip-clearing flute system made especially for aluminum.  1/4" shank , 3/8"dia x 1" long cylindrical shape with radiused end.

Aluminum Porting Cutter -$19.95