Product Name:  
BOV5 Dual Port Smart Port Nissan  
R35 GTR Kit  
Product Description: Fits Nissan GTR R35  
Product Number: TS-0215-1027  
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IMPORTANT NOTES:  
Please thoroughly read and understand these instructions before commencing this installation.  
The thread on the cap for the vacuum source is AN#3. The standard swivel nipple can be changed to an AN#3 fitting if desired.  
RECOMMENDATIONS  
Turbosmart recommends that your Blow off valve (BOV) is fitted and adjusted by an appropriately qualified technician  
Turbosmart recommends that a boost gauge be permanently fitted to the vehicle  
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HOW TO INSTALL YOUR BOV  
Please check that the following items have been provided in your Nissan Dual port kit.  
Quantity  
Description  
LHS Dual Port Smart Port BOV  
RHS Dual Port Smart Port BOV  
Port Blanking plug  
Use  
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1
2
4
2
2
Left Model Specific blow off valve  
Right Model Specific blow off valve  
To blank off a port to convert the BOV to full atmospheric or plumb back  
To secure the vacuum lines to the BOV and the engine  
Seal BOV’s to flanges  
6mm Hose clamps  
Gaskets  
600mm of 5mm Silicone vacuum line  
To connect vacuum source to the BOV  
Installation on a Nissan R35 GTR  
1)  
Remove the two standard BOV’s by removing the securing bolts, plumb back hose and vacuum source.  
Remove standard  
BOV’S  
2)  
Install the Dual Port BOV’s using the standard bolts. Remember to put in the provided gaskets between the flange and the  
BOV. Replace the plumb back hose and secure with the standard clamp.  
Left side BOV  
Right side BOV  
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3)  
Replace the standard vacuum lines with the hose provided in each kit. Use the spring clamps to secure the lines.  
Left side BOV vacuum line  
Right side BOV vacuum line  
4)  
Start the car and check for leaks. Proceed in adjusting spring tension  
Note: The Dual port is supplied with a blanking plug for the vent to atmosphere side of the BOV to convert the BOV to full recirculation  
mode. Simply unscrew the trumpet and screw in the supplied blanking plug. Alternatively, the blanking plug can be used to convert the  
BOV into full vent to atmosphere mode by installing the blank onto the plumb back side. An additional 29mm hose blank (sold  
separately) is required to block off the plumb back hole in the intake pipe.  
ADJUSTING YOUR BOV  
Traditionally every BOV needs to be adjusted to suit the vehicle it is being mounted on. The new SP Dual Port BOV technology  
eliminates the need to adjust the BOV after installation.  
MAINTENANCE  
Turbosmart recommends that the following maintenance procedure is carried out at six monthly intervals or at higher intervals if the  
environment is very dusty or wet. Regular maintenance will ensure that your BOV is operating at its peak performance and will extend  
the working life of the product.  
Remove the cap of the BOV by rotating in an anti-clockwise direction CAUTION, the cap is under spring force, remove with  
care!  
Carefully remove the piston and thoroughly clean the piston and the bore of the BOV  
Inspect the surface of the piston and the bore of the BOV for scoring or excessive wear, silver coloured marks on the bore are  
an indication of excessive wear  
Check the Base O-ring and the Cap O-ring for any damage replace if necessary  
Lubricate the bore and the piston with Uni-Glide™, hydraulic oil or sewing machine oil DO NOT use grease or viscous oils  
Re-assemble the BOV in the reverse order  
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TROUBLE SHOOTING  
The following points should be checked if you find that your engine is dipping below normal idle, stalling or if the BOV is functioning  
poorly. Please note, the following checks will cure 99% of problems experienced with a BOV.  
2)  
Check the vacuum hose for splits, cracks, loose connection, kinking or any obstruction old or fatigued hose may collapse  
under vacuum causing an obstruction.  
3)  
With the engine running remove the vacuum / boost hose from the nipple in the cap of the BOV, there should a loud hissing  
sound. The engine should idle poorly, double check by covering the end of the hose with your finger otherwise the hose is  
blocked.  
4)  
5)  
6)  
Check to see if the BOV is blocked or contaminated with dirt or debris.  
Ensure that the vacuum / boost source is not shared and that the vacuum source is directly from the inlet manifold.  
Check the seal between the intercooler flange and the BOV. Make sure the supplied gasket is installed and the BOV Flange  
is secured on the intercooler flange with the two factory bolts.  
7)  
Ensure the spring clamps are secured on silicon hoses and fittings.  
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TURBOSMART  
ONE YEAR LIMITED WARRANTY  
Turbosmart is a company built on Customer Satisfaction and Service. That is why all of our products go through regimented test procedures before they are packaged and  
shipped. Turbosmart stands behind its products for one full year after purchase. Terms of Warranty, Service and Returns are as follows:  
Limited Warranty: Turbosmart warrants its products to be free from defects in material and workmanship under normal use and if properly installed for a period of one  
year from date of purchase. If found to be defective, it will be replaced or repaired if returned prepaid along with proof of date of purchase. This shall constitute the sole  
remedy of the purchaser and the sole liability of Turbosmart to the extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representations  
whether expressed or implied, including any implied warranty of merchantability or fitness. In no event shall Turbosmart be liable for special or consequential damages.  
This warranty is only valid on products purchased from Turbosmart Authorized Dealers.  
Service: After the warranty period has expired, repair service is charged based on a minimum and maximum charge rate. (Contact Customer Service for current rate).  
Returns: When returning a Turbosmart product for repair, it must be accompanied by a completed Customer Warranty Form and RMA number. To access this form  
please go to our website www.turbosmartonline.com and you will find it on the Downloads page.  
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DO NOT USE ANY TURBOSMART PRODUCT UNTIL YOU HAVE CAREFULLY READ AND UNDERSTOOD THE FOLLOWING AGREEMENT.  
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We sometimes make mistakes, as do our dealers, distributors and suppliers. Even customers can sometimes order the wrong parts. Do not use, modify, install, trial  
assemble, nick, drop, scratch or adjust any part until you first check for any damage. Damage must be reported immediately. NO EXCEPTIONS. If there are any  
components missing please contact your authorized reseller immediately upon receipt of your shipment. Missing components must be reported within five (5) business  
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Turbosmart warranties the quality of the products it designs and manufactures to be free of defects in material and workmanship. This limited warranty is extended only to  
the original purchaser and may not be transferred or assigned. This limited warranty applies to any product, which after careful inspection by Turbosmart, after receipt of  
the product from our authorized reseller, is found to have a defect in either material or workmanship. Any modifications to the product will void any and all warranties and  
will not be exchanged. Before installation, check new car warranty. Turbosmart is not responsible for voiding any original manufactures warranty.  
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product was purchased.  
If all the above procedures are followed, and the product is found to be defective in either workmanship or material, Turbosmart shall either repair or replace the product, at  
its sole discretion, and sole cost. This limited warranty does not cover or apply to any personal injury, labor charges or any other incidental costs or damages caused by  
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circumstances will Turbosmart be liable for any damages or expenses by reason of use or sale of any such equipment.  
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IN THE EVENT THAT THE INDIVIUDAL PURCHASER DOES NOT AGREE WITH THIS AGREEMENT THE BUYER MAY PROMPTLY RETURN THIS PRODUCT, IN A  
NEW AND UN-USED CONDITION, WITH A DATED PROOF OF PURCHASE, TO THE PLACE OF PURCHASE WITHIN SEVEN (7) DAYS FROM THE DATE OF  
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THIS AGREEMENT AND ACCEPTS ITS TERMS AND CONDITIONS.  
Happy motoring!  
The Turbosmart Team.  
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