justinkk2005 Posted March 14, 2011 Report Share Posted March 14, 2011 Before I go and spend $300+ dollars on a pwk 28 switch, would it be worth while? Altitude: 800-1500 Setup: .10 over bore w/ stock cylinders port cleanup +4 timing head milled .30 (stock head) vforce reeds t5's k&n pods w/ no airbox 145 psi of compression If the gains aren't really that much, I don't plan on doing this. But I have 350 as main jets and I figured that was pretty huge and I thought my setup was just begging for more. What do you guys think? What jetting would you recommend and where do I pick up a nice set of these (other than ebay) Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted March 14, 2011 Report Share Posted March 14, 2011 Before I go and spend $300+ dollars on a pwk 28 switch, would it be worth while? Altitude: 800-1500 Setup: .10 over bore w/ stock cylinders port cleanup +4 timing head milled .30 (stock head) vforce reeds t5's k&n pods w/ no airbox 145 psi of compression If the gains aren't really that much, I don't plan on doing this. But I have 350 as main jets and I figured that was pretty huge and I thought my setup was just begging for more. What do you guys think? What jetting would you recommend and where do I pick up a nice set of these (other than ebay) You would get more power right away, for less money by switching to the Vito's Pro Stock pistons vs. getting the 28's. You really won't see a big difference with that carb switch till you closer to 50-55 HP. I'd stick with what you have for now. Look in the dyno section for a post called random dyno posts. There is a nice comparison of a few stock cylinder motors tested there, and it has the mods needed to cheaply get you to 63 HP. One of the LAST things they do is go to a 28mm carb. Hope that helps answer your question. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted March 14, 2011 Report Share Posted March 14, 2011 Or spend the 300 on a dune port job. Who did the clean up port? Quote Link to comment Share on other sites More sharing options...
justinkk2005 Posted March 14, 2011 Author Report Share Posted March 14, 2011 Or spend the 300 on a dune port job. Who did the clean up port? a friend of mine and he's a member on here. to the guy above, different pistons would really be worth all that hassle/trouble? I thought about the dune port, how much hp increase is that worth? The only problem is I may do a 4 mil build later on, will that port job affect that in the future? I was assuming it would Quote Link to comment Share on other sites More sharing options...
boise_banshee Posted March 14, 2011 Report Share Posted March 14, 2011 I noticed a little diff when I put mine on. It will only set you up perfect, as you continue to mod ur ride. (port, 4-mill, ect...) I still have excellent throtle response too. Quote Link to comment Share on other sites More sharing options...
wfobasheeboy Posted March 14, 2011 Report Share Posted March 14, 2011 I noticed a diff when I put mine on. Mine are 30mm. The shee run way better then with the stocker. I would go with them! Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted March 14, 2011 Report Share Posted March 14, 2011 a friend of mine and he's a member on here. to the guy above, different pistons would really be worth all that hassle/trouble? I thought about the dune port, how much hp increase is that worth? The only problem is I may do a 4 mil build later on, will that port job affect that in the future? I was assuming it would The pistons he is talking about have a notch cut out of the dome so the exhaust port opens sooner. It mimicks a port job. Yea you should wait on the porting if your going to build a 4 mill because more than likely your cylinders will not be able to be reported. You also have to be honist with your self too. You can spend for ever holding off on porting to build a 4mill and then end up never building it. A dune ported stock stroke banshee runs hard. It is a huge increase in power. I guess i would save the 300 twards a 4mill crank and porting if that is what the end goal is. I wouldn't bother doing new pistons because that money could be put twarks the 4mill build. Quote Link to comment Share on other sites More sharing options...
justinkk2005 Posted March 14, 2011 Author Report Share Posted March 14, 2011 Thanks guys, and my stock crank isn't welded so I am assuming i'll be having to replace a crank soon anyway so if I do i'll just go with a 4 mil. I'm sure a 4 mil would like those 28 mm's better anyway so he's right about it setting me up for the future. I heard they're easier to tune as well? I appreciate the timely response! Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted March 14, 2011 Report Share Posted March 14, 2011 (edited) yea they are easier to tune or that is what I have herd. I havn't ever had the stock mikuni carbs. My banshee came with PJ34's. I hated them and bought a pair of pwk 33's. If you going to end up with a dune ported banshee ethire stock stroke or 4mill then the PWK's would be a good carb for them. If you want to buy them now the I would and not look back. You just have to rember the more your engine is built the larger the gain you will see. Edited March 14, 2011 by jbooker82 Quote Link to comment Share on other sites More sharing options...
robert0762 Posted March 14, 2011 Report Share Posted March 14, 2011 The ease of adjustability and preciseness of these carbs over stock is worth it all the way. If you keep your eyes open you can snag a set for about 125. Quote Link to comment Share on other sites More sharing options...
camatv Posted March 15, 2011 Report Share Posted March 15, 2011 i have ported stockers so that they can be made into a 4 mill later. the pwk's are a nice addition along with just a better built carb they are a lil easier to tune i have ran 410-420 mains on stock carbs on cubs so 350's aren't that big. Quote Link to comment Share on other sites More sharing options...
justinkk2005 Posted March 15, 2011 Author Report Share Posted March 15, 2011 couldn't I just buy 2 YZ 85 carbs? they're the exact same from what I can tell Quote Link to comment Share on other sites More sharing options...
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