BIGONTS Posted August 31, 2010 Report Share Posted August 31, 2010 I've been riding the bike with the new top end set-up for the last few months and it runs awesome. Both on dunes and tails. I've very surprized, so are others, how well the bike runs with the simple mods. 700's, 450r's and ltr450's with bolt-on's don't stand a chance anywhere, especially on top??? Planning on getting it dynoed as it sits in the next few weeks. Any guesses? My friend has a nice LTR450 with a big bore, pipe and ported head and I can beat him. I just dynoed about 55hp. I got the jetting perfect with the stock carbs. Looking to get a bit more out of it over the winter. People are telling me that the stock carbs are hurting me. Looking for a set of good all around carbs, PWK's? Would 39mm be too big? Maye 33mm or 35mm? I'm not sure if they can be too big because it depends on the jetting and I don't want to upgrade again if I decide to go with a bigger motor. Let me know what you think and any other mods you recommend. I was also thinking small bore CPI's?? . T5's might be a better all around pipe?? Mods below. Thanks Stock carbs with tors removed, no airbox, K&N clamp on filters Stock spec bottom end, but fresh w/good parts VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time Quote Link to comment Share on other sites More sharing options...
EvilBanshee Posted August 31, 2010 Report Share Posted August 31, 2010 I've been riding the bike with the new top end set-up for the last few months and it runs awesome. Both on dunes and tails. I've very surprized, so are others, how well the bike runs with the simple mods. 700's, 450r's and ltr450's with bolt-on's don't stand a chance anywhere, especially on top??? Planning on getting it dynoed as it sits in the next few weeks. Any guesses? My friend has a nice LTR450 with a big bore, pipe and ported head and I can beat him. I just dynoed about 55hp. I got the jetting perfect with the stock carbs. Looking to get a bit more out of it over the winter. People are telling me that the stock carbs are hurting me. Looking for a set of good all around carbs, PWK's? Would 39mm be too big? Maye 33mm or 35mm? I'm not sure if they can be too big because it depends on the jetting and I don't want to upgrade again if I decide to go with a bigger motor. Let me know what you think and any other mods you recommend. I was also thinking small bore CPI's?? . T5's might be a better all around pipe?? Mods below. Thanks Stock carbs with tors removed, no airbox, K&N clamp on filters Stock spec bottom end, but fresh w/good parts VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time You got a decent set up right now man. How much money are you willing to spend?? and how far do you wanna go?? I would say put on 34mm carb. I wouldnt go much bigger then that. Quote Link to comment Share on other sites More sharing options...
Nutwood 472 Posted September 1, 2010 Report Share Posted September 1, 2010 You got a decent set up right now man. How much money are you willing to spend?? and how far do you wanna go?? I would say put on 34mm carb. I wouldnt go much bigger then that. with your set up,I would go with 28 pwk bored out to 30mm,if your wanting to keep some low end response,but if your wanting a top end gain,you could go with the bigger carbs,like the 33,34,35mm,wouldnt go any bigger,I run 35mm pwk airstrykers on a 472cc big bore 72mm pistons 4mil long rod crank,ported super cub Quote Link to comment Share on other sites More sharing options...
gofast5 Posted September 1, 2010 Report Share Posted September 1, 2010 Like someone else stated if you want all around riding pwk 28s are sweet thats what I run they retain the lowend will improving mid and top. If your want something a little more agressive oko makes 30s which are a keihn replica would be sweet if ur duning 33s would be cool what type of riding are you mainly doing that would help us a little more I forget where it was but I recall someone saying theyre bike run better with a tighter plug gap mabey you could snug it up to .30 or .28? Could always set timing at +5 just expirement with it I guess. Just a thought I guess, cpis are good pipes but the new r2 rockets are supposed to pull just as good ontop if not better and still have good bottem and mid. If you can wait a little those sniper pipes coming out look SICK. Quote Link to comment Share on other sites More sharing options...
spurdy Posted September 1, 2010 Report Share Posted September 1, 2010 VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time I had a Trinity Stage III and I was running 35 PWKs. In my opinion the carbs were too big. It took me forever to get it running well and when it did run good it just seemed like there was too much fuel all the time. It just seemed like it was being flooded with fuel. Maybe I just wasn't as good at tuning back then but it was tough to get it running well and never did run as good as I thought it should. Several people on here told me to try smaller carbs. Back then, I just didn't have the money to *try* a smaller set at $600. Now I run a set of 35 PWKs on an HJR 4 mil and it really screams. I just don't think the Trinity port flowed as much. Just my thoughts. SP Quote Link to comment Share on other sites More sharing options...
BIGONTS Posted September 1, 2010 Author Report Share Posted September 1, 2010 (edited) Thanks for all the input everyone. I use to ride 50/50 trails and sand, now mostly sand. I would still like to retain the lower rpm power and broad power range. Seems like 28 or 33 would be a good choice for me. Also, I have access to various machinists and might bore the stockers out to 28mm, or 27.?? whatever it is. How are the Keihn OKO knock-offs? 30's would be perfect. Thanks Edited September 1, 2010 by BIGONTS Quote Link to comment Share on other sites More sharing options...
BIGONTS Posted September 1, 2010 Author Report Share Posted September 1, 2010 One more question. If I get my stockers bored out to 28mm, will they perform just as good as the 28mm pwk's and make same power? Or is the PWK just a better overall carb and stock will not make same power? I know the use and tuning on PWK is better. Quote Link to comment Share on other sites More sharing options...
06specialedition Posted September 1, 2010 Report Share Posted September 1, 2010 One more question. If I get my stockers bored out to 28mm, will they perform just as good as the 28mm pwk's and make same power? Or is the PWK just a better overall carb and stock will not make same power? I know the use and tuning on PWK is better. I've heard that boring out stock carbs is a waste. Just what I heard though. Quote Link to comment Share on other sites More sharing options...
robert.b.west Posted September 2, 2010 Report Share Posted September 2, 2010 I have similar mods and when i added my 33mm pwk's it was a huge difference. I would recommend them but would not go any bigger. Quote Link to comment Share on other sites More sharing options...
rdzbangshee Posted September 2, 2010 Report Share Posted September 2, 2010 I've been riding the bike with the new top end set-up for the last few months and it runs awesome. Both on dunes and tails. I've very surprized, so are others, how well the bike runs with the simple mods. 700's, 450r's and ltr450's with bolt-on's don't stand a chance anywhere, especially on top??? Planning on getting it dynoed as it sits in the next few weeks. Any guesses? My friend has a nice LTR450 with a big bore, pipe and ported head and I can beat him. I just dynoed about 55hp. I got the jetting perfect with the stock carbs. Looking to get a bit more out of it over the winter. People are telling me that the stock carbs are hurting me. Looking for a set of good all around carbs, PWK's? Would 39mm be too big? Maye 33mm or 35mm? I'm not sure if they can be too big because it depends on the jetting and I don't want to upgrade again if I decide to go with a bigger motor. Let me know what you think and any other mods you recommend. I was also thinking small bore CPI's?? . T5's might be a better all around pipe?? Mods below. Thanks Stock carbs with tors removed, no airbox, K&N clamp on filters Stock spec bottom end, but fresh w/good parts VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time Quote Link to comment Share on other sites More sharing options...
rdzbangshee Posted September 2, 2010 Report Share Posted September 2, 2010 d slid carbs are the way to go I love my air strikers 35s silky smooth response. stock carbs are great tell they get stuck wide opened from the ware on the slides. Quote Link to comment Share on other sites More sharing options...
BIGONTS Posted September 2, 2010 Author Report Share Posted September 2, 2010 Looks like I'll be looking for some 30s or 33's. 28s if I get a really good deal. Thanks for all the input. Quote Link to comment Share on other sites More sharing options...
gofast5 Posted September 4, 2010 Report Share Posted September 4, 2010 okos are a keihn knock off from what I understand theyre pretty legit Quote Link to comment Share on other sites More sharing options...
BIGONTS Posted September 27, 2010 Author Report Share Posted September 27, 2010 Hey everyone. Just picked up a nice 33mm PWK set-up from a member on this board. Just need some input on what jetting I should start with. They already have the more desirable CEL needles and I set them in the middle grove. Not sure what mains I will need, but I was going to get all between 150-160 and a few pilots. My mods are below and I ride at about 500ft. My stock carbs are dead on and the bike screams. I forgot what jets I have in there. Would that help? Stock carbs with tors removed, no airbox, K&N clamp on filters NEW PWK 33mm, Boss intake w/internal crossover, K&N clamp on filters Stock spec bottom end, but fresh w/good parts VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time Quote Link to comment Share on other sites More sharing options...
BIGONTS Posted September 27, 2010 Author Report Share Posted September 27, 2010 Hey everyone. Just picked up a nice 33mm PWK set-up from a member on this board. Just need some input on what jetting I should start with. They already have the more desirable CEL needles and I set them in the middle grove. Not sure what mains I will need, but I was going to get all between 150-160 and a few pilots. My mods are below and I ride at about 500ft. My stock carbs are dead on and the bike screams. I forgot what jets I have in there. Would that help? I think they were 330main and 27.5 pilots??? Stock carbs with tors removed, no airbox, K&N clamp on filters NEW PWK 33mm, Boss intake w/internal crossover, K&N clamp on filters Stock spec bottom end, but fresh w/good parts VF3 reeds Trinity stage 3, dune and trail port, 64.5 pistons Trinity IV head with 20cc domes Timing at +4 T5's pipes Stock cross over tube, no boost bottle NGK BR8ES gapped at 33 Run 93 octane gas all the time Quote Link to comment Share on other sites More sharing options...
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