flattrakker Posted August 12, 2007 Report Share Posted August 12, 2007 Im not totally sure what porting is but i know there is different styles of porting so id like to know what is the best for flat out top end. and i want to get there in a snap. I know porting has alot to do with performance but if someone could explain what it is in detail that would benifit me greatly. Thanks Quote Link to comment Share on other sites More sharing options...
Dgrey Posted August 12, 2007 Report Share Posted August 12, 2007 Im not totally sure what porting is but i know there is different styles of porting so id like to know what is the best for flat out top end. and i want to get there in a snap. I know porting has alot to do with performance but if someone could explain what it is in detail that would benifit me greatly. Thanks Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted August 12, 2007 Report Share Posted August 12, 2007 porting is opening the intake ,exhaust, and transfer ports up so you get more fuel and air into the motor to gain power at points along your power curve. theres a million differant combos when porting so you cant get a stright foward answer on whats the best. its all about your setup, wieght, and most important money. you can go as fast as your wallet will let u. do some research on builders and start calling around and asking questions. porting is by far the best gain you can get out of any motor work but if done by some jackass that doesnt know what he is doing, your going to kill the motors output Quote Link to comment Share on other sites More sharing options...
flattrakker Posted August 12, 2007 Author Report Share Posted August 12, 2007 who do you guys think is the best or who did a nice job on yours? Im not going to port until the top end goes. what does a normal mid-top port job cost just ballpark? Quote Link to comment Share on other sites More sharing options...
Dgrey Posted August 12, 2007 Report Share Posted August 12, 2007 who do you guys think is the best or who did a nice job on yours? Im not going to port until the top end goes. what does a normal mid-top port job cost just ballpark? $250 - $500 for a port job. Quote Link to comment Share on other sites More sharing options...
Banshee0028 Posted August 12, 2007 Report Share Posted August 12, 2007 Im not totally sure what porting is but i know there is different styles of porting so id like to know what is the best for flat out top end. and i want to get there in a snap. I know porting has alot to do with performance but if someone could explain what it is in detail that would benifit me greatly. Thanks Best for flat out top-end is a drag port. But a strong dune port will still give lots of mid to top end as well. Unless you are only dragging, I would say a dune port is a great setup! Jeff at FAST does awesome work. You should give him a shout and tel him what you are looking for. Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted August 12, 2007 Report Share Posted August 12, 2007 kevin herr at herrjugsracing.com he does great work. prices are great and easy to get ahold of. i run his motor and run right with or in front rudy kurtz and passions motors and i have the smallest motor and weigh the most Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted August 12, 2007 Report Share Posted August 12, 2007 once again the question that starts the bitching war is asked.. there are a ton of great builders. you cant point a finger and say flat out that he is the best. call around and start talking to builders. see who you like , who calls you back, who helps answer your questions and is in your price range. theres alot of work that goes into porting a motor so make sure you go with someone that knows what he is doing. also understand right now is a VERY busy time of year. dont expect to get your motor done in 2 weeks check out some of these guy: Jeff at FAST Jim at Passion A&S K&T Redline Hurr Jugs Patriot and many many more. Quote Link to comment Share on other sites More sharing options...
flattrakker Posted August 13, 2007 Author Report Share Posted August 13, 2007 Thanks Guys Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted August 14, 2007 Report Share Posted August 14, 2007 dont forget flotek! Anyways, when you decide to get ported, talk to the person you chose to go with and tell him what type of riding you do and what you want out of your bike. Then he can guide you in the right port job and supporting mods(pipes etc). Quote Link to comment Share on other sites More sharing options...
WALLACE84 Posted August 14, 2007 Report Share Posted August 14, 2007 dont forget flotek! Hell Yea!! Thats who dune porting my play bike right now and is going to drag port my cubs. Helluva nice guy and great service. Not to mention turaround time is fast Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted August 14, 2007 Report Share Posted August 14, 2007 same here cept i got his new boysen play port or something of that nature. he's very under rated, very. Quote Link to comment Share on other sites More sharing options...
WALLACE84 Posted August 14, 2007 Report Share Posted August 14, 2007 Yea, I got the boysen dune port with a lighten flywheel. Yes he is very under rated Quote Link to comment Share on other sites More sharing options...
Dgrey Posted August 14, 2007 Report Share Posted August 14, 2007 I just got my bike back together after getting a purt from Herr Jugs Racing. I have not had a chance to ride it yet though. When I get the bike all warmed up through it seems to revv up a lot more than it used to and faster. Im wondering if that is sort of how a port job works.... I cant wait to ride it. September 14th im going out to Gordons for a shake down and jetting weekend so that im all dialed in before the big trip on Halloween. :cool: Quote Link to comment Share on other sites More sharing options...
jayzx10r Posted August 14, 2007 Report Share Posted August 14, 2007 (edited) Im not totally sure what porting is but i know there is different styles of porting so id like to know what is the best for flat out top end. and i want to get there in a snap. I know porting has alot to do with performance but if someone could explain what it is in detail that would benifit me greatly. Thanks I kind of look at it like this. Understand that I don't know what your level of mechanics is so I'll try it as if you don't have much experience but this is just a generalization of concept. 1. A motor is basically an air pump. 2. By removing areas of constriction, you can have a higher level of fuel/air (A/F) flow. 3. There are basically 3 areas to look at...carburetors (intake), engine porting, and exhaust. 4. If you restrict flow to 1 of these 3 areas, you end up choking the whole motor, reducing the power output. Generally, more flow = more power. Carburetor: A carburetor is the ultimate expression to result of restriction. As the slide closes, it significantly reduces the power output of the motor by restricting airflow. That same effect can result from any other component of the engine that hinders or restricts the smooth movement of the air/fuel charge. I point this out so you can visualize the result of the effect of restriction. Porting: An oversimplified explanation is that the engine transferrers the A/F to the combustion chamber in the cylinder via Transfer Ports. In stock form, they are restrictive by the nature of their mass produced design. By having your cylinders ported, the mechanic will enlarge these ports, allowing significantly more flow in combination with changing the cylinder timing for improved power delivery characteristics. This work is not unlike dropping in a new cam in a 4-stroke motor. The port job you have done is specific to the type of riding/performance you want as an end result. Exhaust: Pipe design is specific to how you want your power delivered and where you want it relative to RPM. Remember that Flow and RPM are requirements for Power!! Some are tuned for lower RPM use, some shift it higher... The reason I broke this into 3 parts is because you shouldn't only modify one area...you should do all three for best performance. Imagine these 3 components were 3 separate pieces of pipes of different sizes. If you had 1 larger and 2 smaller pipes, you would still have the restriction of the 2 small pipes, regardless of how huge the large one was. Same result with any combination. Picture joining a 2",a 1" and a1/2" pipe together. It can only flow what the 1/2" pipe can flow. So what you are trying to do is open everything up in balance, even everything up, and get max HP or desired torque curve!! Anyhow, it is like Bansh eman said..."Porting is opening the intake ,exhaust, and transfer ports up so you get more fuel and air into the motor to gain power at points along your power curve." Look at his sig animation. That is how it works. Hope this helps. Jay From SanD. Edited August 14, 2007 by jayzx750 Quote Link to comment Share on other sites More sharing options...
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