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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Intake/Exhaust? /cgi-bin/YaBB.pl?num=1306189786 Message started by CaptCraic on 05/23/11 at 15:29:46 |
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Title: Intake/Exhaust? Post by CaptCraic on 05/23/11 at 15:29:46 Hey guys, I'm new here. I'm in the middle of a project bike. It's my second savage and the first one that i really got this far into. I'm going with a velocity stack or small filter and wanted to run it with just a header or maybe a shorter pipe. I have heard stories of people burning up valves with short exhausts and don't need that extra expense on this one. Any thoughts on that? Also, will I need to rejet and anythoughts on what it needs to be rejetted to? Thanks. |
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Title: Re: Intake/Exhaust? Post by Serowbot on 05/23/11 at 16:16:06 Jetting an engine set up like that will be the booger of all boogers, and yes,... you will burn it up... ... and you will have no torque... very narrow powerband... Don't do it... it'll run like piss... even re-jetted . ...if you have to ask about jetting, you aren't going to be able to jet that setup... Put on a Harley muffler,... it's much smaller and lighter, and easy to jet for... |
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Title: Re: Intake/Exhaust? Post by CaptCraic on 05/24/11 at 08:09:18 What about a little cone filter or velocity stack with the harley muffler? Does that seem like a good option? I just wanted to get rid of the big air box and bazooka of a muffler they put on these things. Thanks for the advice. |
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Title: Re: Intake/Exhaust? Post by EJID on 05/24/11 at 08:21:39 Several people on here run a cone filter with a dyna takeoff muffler, myself included. Seems to run fine, haven't had to mess with my jets at all, but I live at about 4500' elevation. |
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Title: Re: Intake/Exhaust? Post by Serowbot on 05/24/11 at 09:07:34 Yes, that can work very well... If you are at, or near, sea level elevation, you should re-jet with that set-up. Going up one or two steps richer. I'd start with a 152.5/ 55# main/pilot and do the 2/3rd spacer mod. You'll be safe from burning valves with that, at the least. The pilot jet will affect your gas mileage the most, so I try to go very slightly lean on that one. If you want to keep good mpg's you can try staying with the stock 52.5# pilot jet and see how it runs for you. If you need to go more than 3 turns out on the idle mix screw to get the smoothest idle, then go up one step on the pilot. To test the main, accelerate from 30 or 40 mph, in 4th or 5th gear at full throttle for several seconds, then reduce throttle by about 1/8,...if power increases for a second, you are lean on the main jet. Go up one jet size and test again. A good indicator of overall jetting is the weather...if popping/backfiring increases on humid days, or at higher elevation, that indicates rich....less popping at those times indicates lean. |
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Title: Re: Intake/Exhaust? Post by MotoBuddha on 05/24/11 at 10:17:15 Someone here wrote that 35"-36" is the optimum pipe length, powerwise, for the LS650. |
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Title: Re: Intake/Exhaust? Post by EJID on 05/24/11 at 10:39:58 0D2F342F023524242821400 wrote:
Really? My new 36" fishtail is being delivered to my house today!!! Yipee!!! :D |
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Title: Re: Intake/Exhaust? Post by CaptCraic on 05/24/11 at 14:05:20 Without measuring it seems like the stock header is about 28 or 30 inches already. Could i stick an 8 or 10 inch long tip on it or would I need baffles? I'm just trying to make it run right without spending much more. I'm already at least $10 past my budget of $5 on this one. Haha. The last ls650 that I owned I never really got deep into it. I only did aesthetic stuff and my daily driver is a '74 honda 750 four so a vastly different machine. Thanks for all the tips. I'll try and get some pics up here soon. I love these bikes and this group is really helpful. The guys in my bike group tend to ride mostly 70's hondas and such and with the exception of a few BSA's or Enfields there isnt much big single experience there. |
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Title: Re: Intake/Exhaust? Post by 2whlthrpy on 05/24/11 at 14:26:37 I got my harley dyna muffler for 10 bucks on ebay. They are an easy get for cheap. See the tech section on this forum for the right one to buy. |
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