I picked up an intake off of eBay last week so I wouldn't be down a bike while awaiting it's return form being ported. Now I'm ready to ship it off and want to see if the consensus is still HPR? Are they still charging $150 or has that dropped as they do more? What happened to pushinthelimit, he had good results out of his garage it seemed like.

I studied up on the three forums and it sounded like for awhile there that several folks were doing these themselves and getting just as good performance for considerably less $$$. Anybody still got the diegrinder fired up in the garage? Looking to have three done, one at a time, so if you've got the experience and results to prove it then give me a hollar.
Thanks guys.

 

I am new to this forum and I don't want to step on anyone's toes by recommending someone else, but here goes. HPR is top notch. I would trust them to be on top of the game without a second thought. I also have great confidence in the porting technology of Klug Racing out of Salem, OR. I had them increase my port job on the head from a sport port to a full race port. The seat of the pants torque increase was tremendous. I am running an HPR intake manifold for my 48mm Lectron. After the race port, we had to open up the head side of the HPR intake a bit to match the head porting but not a significant amount. The carb side back to the split looked itdentical to the eye. These guys work closely with Dave Moore and are DS builders. You can reach Josh Klug at (503)932-7648.

I don't know where their pricing stands on intakes but I know they are good and are reasonably priced on everything else. They want to make a good name for themselves and you can't start as high as the guys who already have that good track record.

HPR is awsome. These guys are to.

Ron

 

ace,

i wouldnt do it yourself, there are problems with people doing it themselves with air or somethin like that....back pressure and losing power...

leave the intake to the pro's , its not worth the headache....

 

Not that tough to do. It depends on what carb you are going to. Get some calipers and get after it. You do have to remove a lot of meat and it is a slow process. Im sure some others will chime in on sizes for different carbs.

 

would you need to increase the jetting after the ported intake on a stock carb?

 

On just a good clean up ,some times you can jet down because your air flow picks up.

Like meaner said unless you are all out racing, just clean up (blend in) the casting flaws.

When you change carbs is when better porting and port matching comes into play.

 

so this can be done whit a dremell right

 

When I was a kid, all I thought surgeons did was open up a sick person, ask for a scalpul, root around inside for awhile then sew them back up and send them home. Just knowing the tools and the basic proceedures and even the end goal doesn't mean it will necessarily do any good. What do you want to accomplish with a ported intake? Do you want a guarenteed increase in performance or to just be able to say you have a ported intake with the possibility of gaining or losing or sacrificing one part of the powerband to boost somewhere else?

Porting an intake by itself may not yield much so it might make little difference either way but if you get a good head port and a larger carb making the stock intake the bottle neck, it could make a huge difference. If you are trying to match components for overall horsepower gains definitely have a pro do it.

As to the jetting question; if you are borderline rich on the current carb settings, opening up the intake will improve your mixture. If you are borderline lean you might be able to increase fuel a bit but I doubt it will be significant enough to feel until you oversize your valves, port your head and add a larger carb and even then the intake is only aiding these other components in moving air through the motor.

 

i tryed to do mine with a dremel but it would take too long. u need to use a die grinder(maybe bigger than the dremel) which will remove more material in the intake much faster and maybe the dremel after for the finer finishing

 

i'll be getting a lectron 46hv thats why i'll need to port the intake right..