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TOPIC: Re:Jetting change after porting manifold? Forum Tools Post New Topic Show latest posts Rules

#110255 Jason19 (User) Yes, I am a Pirate, 200 years too late Junior Boarder Posts: 177 Jetting change after porting manifold? 4 Months, 3 Weeks ago   I did some searching, but not sure if I really found what I was looking for.. I will be putting on my new exhaust tonight (LA Chopper CurveDD), and then in the next day or two doing the HC Pro-R kit. I have heard and read that the jetting that comes with the kit works great, and I am sure I can tweak it a little even, but my question is this: If I port the manifold as well when it is all apart (grind down the corners) will it effect y jetting at all? Will I need more than just the setting that come with the kit? TIA   Logged     -Jason 2007 Road Star Silver Hypercharger Pro-R LA Choppers CurveDD with cut baffles   The administrator has disabled public write access. #110309 Curt (User) Never to old to ride! Platinum Boarder Posts: 3149 Re:Jetting change after porting manifold? 4 Months, 3 Weeks ago   Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.   Logged     Last Edit: 2008/08/19 19:02 By Curt.   Black Ice is Shinny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access. #110391 Jason19 (User) Yes, I am a Pirate, 200 years too late Junior Boarder Posts: 177 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   Thanks Curt...I got everything done BUT the manifold, but I will eventually do it. I was into the carb for the first time, I was reading here things, I was reading the HC kit things, and I was using what they gave me........and now I am popping and shooting flames. haha And they don't tell you where to put all the hoses on the Pro-R kit. I have a few questions for sure, but i will type this up more tomorrow. been in the garage all nite, and its time to chill for a bit   Logged     -Jason 2007 Road Star Silver Hypercharger Pro-R LA Choppers CurveDD with cut baffles   The administrator has disabled public write access. #110394 Hotelfox (User) Riding The BIG RED THUNDERCHICKEN!! Platinum Boarder Posts: 1140 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   When I put the ported manifold on mine it didn't require jetting, but I am getting ready to go in and see what I can do. I have a K&N air kit, cobra long shots, 10.5 : 1 pistons and have never touched the carb and it seems to run ok, I am going to play with it this winter a tad from some of the settings I have found on here.   Logged     2.5MM Float Assy 170 Main Jet 3rd clip on the needle 2.5 turns out PMS Proud Member of Patriot Guard Riders Hirams Riders M C   The administrator has disabled public write access. #110442 onefastbob (User) WARNING!...I can be Annoying! Junior Boarder Posts: 104 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   Curt wrote: Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.Curt, I am not trying to be a pain but if you port a manifold doesn't it make the engine leaner as it lets more air in? More air same amount of fuel would be leaner wouldn't it? Thanks.   Logged     My Image is NO longer illegal!   The administrator has disabled public write access. #110464 Gram (Admin) Musky took my beer! Admin Posts: 2555 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   onefastbob wrote: Curt wrote: Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.Curt, I am not trying to be a pain but if you port a manifold doesn't it make the engine leaner as it lets more air in? More air same amount of fuel would be leaner wouldn't it? Thanks. Here's a good read on the subject: MAnifold Porting FAQ   Logged       The administrator has disabled public write access. #110484 Hotelfox (User) Riding The BIG RED THUNDERCHICKEN!! Platinum Boarder Posts: 1140 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   Gram wrote: onefastbob wrote: Curt wrote: Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.Curt, I am not trying to be a pain but if you port a manifold doesn't it make the engine leaner as it lets more air in? More air same amount of fuel would be leaner wouldn't it? Thanks. Here's a good read on the subject: MAnifold Porting FAQ Wow, if my bike runs good now and I do some adjustment, that thing may actually fly.....   Logged     2.5MM Float Assy 170 Main Jet 3rd clip on the needle 2.5 turns out PMS Proud Member of Patriot Guard Riders Hirams Riders M C   The administrator has disabled public write access. #110603 onefastbob (User) WARNING!...I can be Annoying! Junior Boarder Posts: 104 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   Gram wrote: onefastbob wrote: Curt wrote: Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.Curt, I am not trying to be a pain but if you port a manifold doesn't it make the engine leaner as it lets more air in? More air same amount of fuel would be leaner wouldn't it? Thanks. Here's a good read on the subject: MAnifold Porting FAQGram thanks for showing me this article. I am still unconvinced. An engine is just a fancy airpump. If you make it pump more air you can burn more fuel and make more power. Seems to me if you port a manifold and increase the airflow through the engine you will also need more fuel to burn. More air without more fuel means leaner mixture. I am NOT trying to argue the point, I am trying to understand it. It is making my head hurt.   Logged     My Image is NO longer illegal!   The administrator has disabled public write access. #110614 Gram (Admin) Musky took my beer! Admin Posts: 2555 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   onefastbob wrote: Gram wrote: onefastbob wrote: Curt wrote: Yes it will effect your jetting it will make you richer. I am not sure if the HC kit comes with more than one jet like the Barons does. Good luck with your HC I sold mine and got a BAK I like it much better and it is easy to jet for as well. Just my 2 cents.BTW when you port your manifold take the runners to the cylinders down to the metal.Curt, I am not trying to be a pain but if you port a manifold doesn't it make the engine leaner as it lets more air in? More air same amount of fuel would be leaner wouldn't it? Thanks. Here's a good read on the subject: MAnifold Porting FAQGram thanks for showing me this article. I am still unconvinced. An engine is just a fancy airpump. If you make it pump more air you can burn more fuel and make more power. Seems to me if you port a manifold and increase the airflow through the engine you will also need more fuel to burn. More air without more fuel means leaner mixture. I am NOT trying to argue the point, I am trying to understand it. It is making my head hurt. I was unconvinced at first too. But after I purchased an exhaust analyzer I confirmed it. Every bike I installed one on was richer after the install. Some only needed minor adjustments. But if it was one of my manifolds they usually needed a full size jet smaller main. Gram   Logged       The administrator has disabled public write access. #110619 Goodygood (User) Junior Boarder Posts: 168 Re:Jetting change after porting manifold? 4 Months, 2 Weeks ago   One ??? on porting the manifold. Will it void out warranty?? not really making internal mods but didnt know if this would void warranty? Thanks   Logged     The administrator has disabled public write access.

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