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06-29-2011, 10:37 PM
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#1 (permalink) |
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:::Rookie Rider:::
Join Date: Jun 2011
Posts: 1
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newbie mod questions
so i just picked up an all original 03 400z in great shape. i've decided to do a couple mods to it including curtis sparks full exhaust, outerwears airbox lid, pro flow air intake system, dynojet stage two jet kit, 13T front sprocket, 18" holeshot rear tires, & stainless oil filter. i was wondering what size jets i should use with this setup. also, are the 18" tires and 13T sprocket going to be too much low end together? are there any other cheap mods that are worth while? i mostly do trail riding in northeastern wisconsin. thanks for any help.
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06-29-2011, 11:20 PM
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#2 (permalink) |
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:::Get a life! You're over 5000 posts:::
 
Join Date: Oct 2008
Location: Southern California
Posts: 5,260
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Welcome FNG!
 For cheap mods you may think of getting a 400 ex intake boot. 20 bucks or so. As for your list that looks like a great starting point for adding some umph to your Z. The Dynojet kit will come with recommendations that are fairly spot on. I would probably start with a 155 or 160 depending on elevation and the needle on the 3rd clip (I don't know why they even have other settings.....seems that's where they all end up) and you'll probably be about 2.75 or so turns out on your fuel screw. Here's a link to alot of different jetting to mod combos.... Jetting Database Regarding the tire/sprocket.......I don't really know. I've never ran 18's but this may tell you something. LT-Z400 Calculator Looks like you lose about 11 mph over stock with that combo. You'll be giving up ground clearance that you may need as well. 57 mph top speed would be plenty for me.......I rarely even touch 5th gear. Most here probably feel different though.
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2005 Z-400 Mine January 2011 QOTM 2004 Z-400 Brad'Z October 2011 QOTM http://www.suzukicentral.com/forums/...tm-winner.html 2004 Z-400 Wife's 1996 Sandsprite IV (sandrail) MINE Sponsors: Coors Light.............I sponsor them  !Life is tough...........it's tougher if you're stupid. |
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06-29-2011, 11:32 PM
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#3 (permalink) |
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:::Official Spammer:::
Join Date: Feb 2008
Location: PA
Posts: 3,251
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05+ Shocks make a huge difference.
__________________
2006 LTR450
Engine Mods: Yoshimira Cherry Bomb - RS-5 Full Exhaust - Inspection Plug Choke B/O Nut - Start Button JE Piston Suspension, Steering & Chassis: Flexx Bars w Turner Clamps - Precision Damper - Tag Skid Plate Powermadds - LT Fox Evol w FuelATV A-Arms - Fox Podium Rear Pro Armor Grab Bar - IMS Roll Nerf + Heel + Bumper Misc: DID X-Ring Chain - Sprocket Guard - Frame Guards - ProDesign K/S Hiper Tec 3 - ITP Beadlock Rear Rims Parted Out: 2004 LTZ400 - September 2011 QOTM |
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06-29-2011, 11:37 PM
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#4 (permalink) |
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:::LT250 Rider:::
Join Date: Jun 2010
Location: Lansing, MI
Posts: 776
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a drz base gasket will up the compression if your mechanically inclined enough to pull the entire topend off to do it, the base gasket is only $9
__________________
2008 ltr450 LE murdered out (mine) http://www.suzukicentral.com/forums/...tml#post744310 2003 ltz with yoshi stroker motor (sold)  December 2010 QOTM2004 ltz limited edition drz kit and cams (wifes) 2004 nissan titan runs 13's (tow vehical) 2005 klx 110 with 143 big bore (my toy) |
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06-30-2011, 08:18 AM
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#5 (permalink) |
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:::KFX 400 Rider:::
Join Date: Mar 2011
Location: Pittsburgh
Posts: 921
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May want to try a 25 pilot as well.
__________________
2004 KFX400, 12.2:1 Wiseco, HMF full exhaust, FCR-39 (170 M/ 42P/ 40L/ NCVQ, DRZ-E boot w/ compact head-stay), OSHC's, K-W valves w/ drz springs, Dyna Fs NP, Raptor Petcock, Wiseco cam chain, 400ex boot, Oversized clamp on UNI/K&N no lid, DRZ-E Base, DRZ Flywheel, LTR450 Front Shocks, blob-less ProTaper Contour bars (ATV High) w/ hot-start reverse, odi grips, Tusk nerfs, Full skids, 14/40, (R) Holeshot ITP HD (F) Rzr2, Port-N-Polish by me. |
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07-01-2011, 07:38 PM
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#6 (permalink) |
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:::Ozark 250 rider:::
Join Date: Jun 2011
Location: Warren, PA
Posts: 285
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Welcome to the honey hole! Haha there is tons of info here. I'm new here and I've already learned alot.
__________________
2005 YFZ450
Pro Armor Revolution Nerfs Pro Armor XC Front Bumper Pro Taper Bars Stage 3 Hot Cams Hot Rods Crank Wiseco Piston Maxxis Razr II's Big Thanks To All Of the People Who Have Helped Me Over The Years: Mom And Dad Grandpa And Grandma Tom Carlson At TC Racing Nate McNett At McNett Performance ~In Loving Memory Of Dave Morelli, Thanks Grandpa~ |
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07-27-2011, 07:28 PM
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#7 (permalink) |
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:::Mini LT80 Rider:::
Join Date: Jul 2011
Posts: 202
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^ me too, I also just picked up my jets. Got a 25 pilot and 155 157.5 and 160 main jets
__________________
2004 White LTZ 400.
Yoshimura Graphics kit. 92mm 12:1 forged JE. Old style hotcams(soon) Kibblewhite valves. Cometic gaskets. Pull choke. 400EX Boot. White/Black Pmadd's. Team Suzuki white shock covers.(soon) Durablue 2-4 inch adjustable axle. LSR brake block-off. HMF Ballance pipe.(looking for header) Nerf Bars. DG Front bumper. Custom Grab Bar. DWT beadlocks w/RAZR's in back. DWT beadlocks w/RAZR knockoffs in front. |
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