rynb15 Posted November 26, 2006 Report Share Posted November 26, 2006 My bike already has a little bit done to it as you can see in my sig. I am wanting to go a little faster. Nothing extreme. I raced a few bikes today. The closest one was a piped honda 450. I didnt talk to the guy but i know it had a pipe. I still won but it was close. We were even until i got in 6th then i pulled like a half a bike on him. Anything i could do to mine just to give it a little speed? I have stock carbs. I was thinking maybe a 1 into 2 carb? Just want to hear what you guys think. Dont really want to tear into the motor. Thanks for reading :beer: Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted November 26, 2006 Report Share Posted November 26, 2006 I have stock carbs. I was thinking maybe a 1 into 2 carb? Just want to hear what you guys think. Dont really want to tear into the motor. Thanks for reading :beer: Porting will give you way more power than a single carb setup. You can get dual 33mm carbs for cheaper than what trinity sells there single carb setup for. Quote Link to comment Share on other sites More sharing options...
banshee_ga Posted November 26, 2006 Report Share Posted November 26, 2006 Porting will give you way more power than a single carb setup. You can get dual 33mm carbs for cheaper than what trinity sells there single carb setup for. also if it's more top end you want stay with the dual carbs trinity's 2 into 1 is based mainly on bottomend Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 26, 2006 Report Share Posted November 26, 2006 You've done all the bolt ons you can. Short of suspension, gearing and tire changes....you're about maxed out. Get porting when you're ready for a fresh top end.... Quote Link to comment Share on other sites More sharing options...
Aaron.D Posted November 26, 2006 Report Share Posted November 26, 2006 Yup, All maxed out for sure. Programmable ignition for more advanced timing curve changes, port and polish. Quote Link to comment Share on other sites More sharing options...
rynb15 Posted November 26, 2006 Author Report Share Posted November 26, 2006 thats what i was thinking, i was just hoping there would be some other bolt on i was not awasre of. If i do the porting do i need to change anything else? Also how much porting? Do i just bring the head to a machine shop? Quote Link to comment Share on other sites More sharing options...
cexualcensations Posted November 26, 2006 Report Share Posted November 26, 2006 It would be best to wait and do porting when you are ready for a fresh rebuid ( new pistons, rings and bore). There are lots of different types of porting that can be done depending on your riding characteristics. Heres some ideas rdz racing or jim at passion for a good port job as well as many others. Prices are about 400 dollars. Quote Link to comment Share on other sites More sharing options...
baddsheee Posted November 26, 2006 Report Share Posted November 26, 2006 The port work is done to your cylinders, not the head. Recommend you to take it to a reputable builder. Look up porting and who does it, on this page. Yeah some port work can run you around $400 including all your gaskets, bore and hone. You might consider doing a top end for another $150 for the pistons. These prices are if you do the installation yourself. Pretty simple, Clymer's definitely would make it cake. And some larger jets would be needed, few bucks. :beer: Quote Link to comment Share on other sites More sharing options...
Banshee0028 Posted November 26, 2006 Report Share Posted November 26, 2006 since you have most bolt-ons, you might try a 15t front sprocket if you are still stock (14/41). This will give you a little more top end and will help with less shifting...Its also less than $15 :beer: Quote Link to comment Share on other sites More sharing options...
chase@miamiatv.com Posted November 26, 2006 Report Share Posted November 26, 2006 if you want , i got a set of trail ported www.cpcustoms.com 20 over , with head and pistons 400 shipped... Thats alittle more then the cost of the port job , and you get a complete top end , running. Then you can have your current set as a backup , or you can sell them to offset the price of the actual port job . Quote Link to comment Share on other sites More sharing options...
rynb15 Posted November 28, 2006 Author Report Share Posted November 28, 2006 would it be worth upgrading to bigger carbs. Im looking for i guess more topend power. for drag racing. would 33mm carbs help out? and if so how much? Quote Link to comment Share on other sites More sharing options...
thegroup Posted November 28, 2006 Report Share Posted November 28, 2006 u should talk to rocketboy on here, he did one hell of a job on my cyls. $250 altogether to do both of 'em. it maybe more for a full drag(mine was a dune/mx port) :beer: also, have ur flywheel lighten, itll let ur motor spin faster Quote Link to comment Share on other sites More sharing options...
REAPER Posted November 28, 2006 Report Share Posted November 28, 2006 Try a DYNA FS IGNITON module it has 4 setings stock low mid and top and u can get the progamer to run on ur computer and make ur on settings throw the rpms and the whole thing only cost about 300 plug and go Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted November 28, 2006 Report Share Posted November 28, 2006 would it be worth upgrading to bigger carbs. Im looking for i guess more topend power. for drag racing. would 33mm carbs help out? and if so how much? The dual Keihin PWK 33 mm carbs would be a good all around set of carbs for about any riding. I woulnt wast my time on those Keihin PWK 28mm's. The 33's should get you around good, but will be best with porting. If your feeling the itch to buy some parts but dont want to tear in to the egnine yet you could get a set of 33's. I would plan on eventualy getting the cylinders ported with those carbs though. If you never are going to get the cylinders ported I would just stay with the stock carbs. The 33's are too much carb for a non ported machine. I have an MX port job with my PWK 33mm carbs and they run sweet. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 28, 2006 Report Share Posted November 28, 2006 would it be worth upgrading to bigger carbs. Im looking for i guess more topend power. for drag racing. would 33mm carbs help out? and if so how much? NO. You're wasting money on bigger carbs with stock porting, stop wasting your time. Bigger carbs aren't going to flow as efficiently on a stock port motor. I know you don't want to or are afraid to open that motor up. But, you're missing out on SERIOUS power by not getting it ported, period. Reaper: The dyna costs on average 260 to 300. The cable and software costs 100. Then...dyno time to tune it in. While I have a dyna...I already had my cub motor first. That nearly 300 to 400 dollars could be better spent on porting and a fresh top end. I think what this guy wants to do is try and bolt on as much HP as possible, he's already done that. You could spend 300 or so on a pair of 28mm carbs...to get a few HP, but....you could spend 400 or so...and easily get 15 to 20. Seems like an easy answer.... Quote Link to comment Share on other sites More sharing options...
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