charles_in_houston Posted January 18, 2007 Report Share Posted January 18, 2007 (First post but I've been lurking for a while) I purchased an almost stock 1996 Banshee for $1400 and decided to tear it down since the previous owner said the top end had never been done. It rode fine during the test run but seemed to be running a little rich on the right side. I wanted a Banshee pretty bad so I jumped on the deal since it was in great physical (cosmetic) condition. I would have checked the compression but I couldn Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 18, 2007 Report Share Posted January 18, 2007 well with the things you listed your headed in the right direction for sure...the only way to be 100% on if you need to use race gas is to do a compression test once its back together... but you named all the bolt ons that id say to start off with.. maybe some 28mm PWK carbs being the stocker carbs are crap... Quote Link to comment Share on other sites More sharing options...
charles_in_houston Posted January 18, 2007 Author Report Share Posted January 18, 2007 well with the things you listed your headed in the right direction for sure...the only way to be 100% on if you need to use race gas is to do a compression test once its back together... but you named all the bolt ons that id say to start off with.. maybe some 28mm PWK carbs being the stocker carbs are crap... I've got the bike back together now and I've taken it though the break-in. I used the one listed on the Duncan Racing web page. I've dragged it against some other Banshees and it seems to hang with like modded bikes. Bob (the guy that did the port work) hooked me up on specs for running it. It runs fine on pump gas. I want to make sure I keep it that way for now. I though of 20cc domes but that's in the gray area of race/pump gas mix from what I can tell. How much better would the 28mm PWK carbs work out? Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 18, 2007 Report Share Posted January 18, 2007 power and topend you wouldnt notice much... if any... the biggest improvment would be your throttle response.. the stock carbs are garbage... PWK have very nice throttle respones and that with vf3 reeds and your going to be good as far as throttle respones goes Quote Link to comment Share on other sites More sharing options...
Washburn Posted January 18, 2007 Report Share Posted January 18, 2007 I would try to trade in those FMFs plus mabey a hundred bucks or so for some toomey T5s and get some bigger carbs for more all around power with that agressive dune port. Mabey some 33pwks 35s if you plan on getting a bigger port job. That should do the trick. Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 18, 2007 Report Share Posted January 18, 2007 i wouldnt go that big on carbs... his motor is stock stroke and bore ... only change was the porting... Quote Link to comment Share on other sites More sharing options...
Washburn Posted January 19, 2007 Report Share Posted January 19, 2007 i wouldnt go that big on carbs... his motor is stock stroke and bore ... only change was the porting... If his agressive dune port is as big as Im thinking even with stock bore I dont think the 33s would be too big and if he were to get a bigger port later on they would come in even more handy. I dont think going from 26 to 28 would make as noticable a diffrence as say 28s bored out to 30 or just 33 with ports being open that much and the type or riding he does. Thats just my oppion. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted January 19, 2007 Report Share Posted January 19, 2007 I say 33PWKs. He says split 50/50 between rec. riding and MX vs. play drag racing. So..being on the ropes, 33PWKs would probably match up with a dune port, and some T5 or Trinity Stage IV pipes as well... Hate to say it, but...if that crank isn't welded, it might not be a bad idea to start thinking about that. Bob @ RB does great work for the price he charges. I rode a motor of his @ Silver Lake...it was fun!! Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 19, 2007 Report Share Posted January 19, 2007 with a sotck bore and stroke id have to say 30 would be as high as i go.... 28 your not going to see anything besides better throttle response... Quote Link to comment Share on other sites More sharing options...
charles_in_houston Posted January 19, 2007 Author Report Share Posted January 19, 2007 with a sotck bore and stroke id have to say 30 would be as high as i go.... 28 your not going to see anything besides better throttle response... Thanks for all the inputs guys. I Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 19, 2007 Report Share Posted January 19, 2007 Thanks for all the inputs guys. I Quote Link to comment Share on other sites More sharing options...
charles_in_houston Posted January 19, 2007 Author Report Share Posted January 19, 2007 (edited) your not going to gain so much throttle response from going to 28s tha your going to shit your pants... but youll notice a differance for sure..remember once you get the 4mil your going to have to get it port at the same time to change the port timings ...so plan on doing alot at one time to turn it into a stroker. as far as the unwelded crank goes its hit or miss... there not really a give away answer that this many do it and this is why... some let go fairly soon and other can go years and then let go.... I've got my eye open for a deal on the 28s now. I just missed a set on eBay for $260 plus shipping. I don't even know if that's a good deal really. As for the stroker, Bob told me the existing port work would be fine but I'd have to upgrade to another style of piston to match the port work. They way I understand it, if I was to go with the 4 mil it would only be case porting, the stroker crank (welded etc) and the new pistons. I've tried to include a photo of the intake side of the port work that Bob did. I don't know much about porting but it sure looks agressive to me and it pulls as hard as my buddies $500 port job. I am hoping that I don't have to re-do the port work again. What do you think? Edited January 19, 2007 by charles_in_houston Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted January 19, 2007 Report Share Posted January 19, 2007 (edited) I've got my eye open for a deal on the 28s now. I just missed a set on eBay for $260 plus shipping. I don't even know if that's a good deal really. As for the stroker, Bob told me the existing port work would be fine but I'd have to upgrade to another style of piston to match the port work. They way I understand it, if I was to go with the 4 mil it would only be case porting, the stroker crank (welded etc) and the new pistons. I've tried to include a photo of the intake side of the port work that Bob did. I don't know much about porting but it sure looks agressive to me and it pulls as hard as my buddies $500 port job. I am hoping that I don't have to re-do the port work again. What do you think? thats sounds about normal for them... call jeff at fast ... he can set you up with a set im sure.. hes mine and many others on here go to guy for parts... as for the porting... when you go to a 4mil your port timings change so your jugs are going to have to be redone... unless your plan is a spacer plate... you dont need anything done to the case to run a 4mil... once you move to a 7mil or bigger you got to have it trenched... im no porter so im not going to try and give advice on the pict... maybe someone thats done some porting can chime in... Edited January 19, 2007 by Bansh-eman Quote Link to comment Share on other sites More sharing options...
charles_in_houston Posted January 20, 2007 Author Report Share Posted January 20, 2007 What do you think about these carbs? http://cgi.ebay.com/ebaymotors/ws/eBayISAP...mMakeTrack=true Do you guys know who makes them? Quote Link to comment Share on other sites More sharing options...
woodro77 Posted January 20, 2007 Report Share Posted January 20, 2007 What do you think about these carbs? http://cgi.ebay.com/ebaymotors/ws/eBayISAP...mMakeTrack=true Do you guys know who makes them? i just got those carbs and they are awsome , one of the best mods i did so far , way better than stock carbs . they come set up for your mods and the guy i called really good to deal with , throttle resonse and bottom end power i never had . call them up and talk to them. there is also a open topic about them , do a search Quote Link to comment Share on other sites More sharing options...
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