I installed a HMF Slip-on, Dynojet Jet Kit, and a TwinAir filter on an 04' Grizzly 660.
I installed a HMF Slip-on, Dynojet Jet Kit, and a TwinAir filter on an 04' Grizzly 660.
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
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My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
The TwinAir
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
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My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
We started with dynoing the bike completely stock. Then we installed the HMF slip-on, Dynojet jet kit(with the recommended jetting specs), and the TwinAir. The graph shows the comparison.
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
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My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
The tq gain was good
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
------------------------------
My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
-----------------------------------------------
Up to 42hp-30tq and For Sale*** Time for a new project!!
Top speed
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
------------------------------
My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
We finished the jetting with 160 main and the needle in the 4th position. The day of the test the temp was 55* and the humidity was 26%. The altitude was 312ft.Our dyno is in a trailer so we can tune to outside(real time) conditions.
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
------------------------------
My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
Stock main was a 153.8 and Dynojet recommends a 155. From what I have seen before I jumped to a 160 and the result was right on the reference line. This is why the air/fuel module is such a great tool. Overall I think that with the mods that were installed we gained some usable power.
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
------------------------------
My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!
sweet deal!
04' Polaris Predator for sale
Yoshimura Comp Series Slip on
Nicholas Cycle Carb Mods
NC filter kit (3 filters and outerwear)
AC Racing pro-peg nerf bars
Ac racing bumper
Rath racing radiator scoops
Jet-Hot stock head pipe
Did X-Ring chain
Rear Kenda Klaws
Accerbis Rally Pro Handguards
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Thanks for the reply's Nice bike bman
Precision Motorsports
Mobile Dyno Services
www.precision-ms.com
------------------------------
My 440ex Mods: 12:5 Comp, White Bros. XC Cam, DRG Ported Head, DRG EXR Prototype Filter, Airbox Lid Off, 450r Carb, LRD Pro 4 Ballistic Full Exhaust...
*Jetting: 3 turns out on the Mixture Screw, 48 pilot, Needle in the 3rd from top, and a DJ 170main*
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Up to 42hp-30tq and For Sale*** Time for a new project!!