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| Mini Buggy General Discussion General Discussion forum for Mini Buggies. (American Sportworks, HammerHead, Carter, etc) |
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#1
12-17-2010, 12:18 PM
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can i put a 125 jet and a uni filter on with a stock muffler
can i put a 125 jet and uni filter on if i gutt my muffler or do i need a performance exhaust are thay the same i wont to increase speed
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 2001 hammerhead 150ss racing cdi racing coil mrp racing clutch Dr.pully 12g sliders 1500rpm torque spring 1500rpm clutch springs Hammerhead performance key switch 125-130 jet UNI Filter cold air intake ipod plug up and speekers 3000lb winch 
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#2
12-17-2010, 12:24 PM
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i just did this mod to my 150 carbide. i didn't gut the exhaust and don't intend to. i want to keep it quiet for now.
i installed the uni with intake pipe and a 125 main jet (had a 114 in it) runs great.
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07 HH250SS UNI HIT CLUTCH DR. PULLEY VARIATOR RED MAIN 17g ROLLERS 12T/45T SPROCKETS IRIDIUM PLUG HP CDI & COIL LED LIGHTS ASW CARBIDE UNI 12g SLIDERS RED MAIN 39T SPROCKET (coming soon)
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#3
12-17-2010, 01:19 PM
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thanks
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2001 hammerhead 150ss racing cdi racing coil mrp racing clutch Dr.pully 12g sliders 1500rpm torque spring 1500rpm clutch springs Hammerhead performance key switch 125-130 jet UNI Filter cold air intake ipod plug up and speekers 3000lb winch
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#4
12-19-2010, 02:20 PM
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Yes you can, not sure you`ll get much of an increase in speed though.
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07 Joyner SV250 12gr rollers, White spring, Uni, 132 main, 23`s all around, 2K warn winch, more to come... 05 Carter Talon FX150R Sliders, 1500# spring, CDI, Coil,Uni, 125 main
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#5
12-19-2010, 05:12 PM
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A UNI and re-jet are always a good investment, but to increase speed heavier rollers or sliders and a 1000rpm main spring would do the job. Only problem is loosing low end. One or two inch taller rear tires alone will give more speed.
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08 Joyner SV 250 17grm sliders,white main spring,UNI,130 main,40 pilot,22x810 Kenda Front Max,23x10x10 ITP Muddlites 08 ASW Carbide (my son's)Lots of mods Last edited by wasjustlooking; 12-19-2010 at 05:15 PM.
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#6
12-23-2010, 12:35 AM
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You can do it with having to open up the exaust. That was the first two mods I did. (UNI-jet) I didnt open the exaust until months later. When i 'gutted' my exaust it really didnt increase the noise much at all. Nothing like an open header like I was expecting. Just remember....More air(UNI) + more fuel(bigger jet) + less restriction on exaust(gutted) = more power. So if you add the UNI and go with a bigger jet, you really dont the full effect of the mods unless you open the exaust. These three kinda go hand in hand as 1 mod in my opinion. BUT you can do them individually.
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2006 HH150.....kinda prodigy vari/clutch 11g Rollers/Yellow Main White Brothers Performance Pipe/No Rev CDI/Hot Coil Stroker Crank/BB 180 kit Mikuni VM28 - 35 Pilot - 140 Main A12 cam blaster shocks x4 vapor speedo
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#7
12-24-2010, 08:55 AM
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Just increasing the diameter of the tail pipe alone will not effect the noise level much but will make it bteath much better. What I do is cut the tail pipe as close to muffler as possible, get a piece of 1/2" dowl rod to insert into remaining tail pipe. This allowes you to use a 1" hole saw creating a pilot to drill out old pipe at the same time enlarging the exit. Than you get a 2" piece of 1 1/4" OD pipe or conduit and weld to muffler. If you don't have access to a welder, just bring to a muffler shop to have it welded. This will give you a lower mellow tone with a very slight increase in noise level. This will help the engine breath much better.
Tom
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