Experienced Sport Port Users

[BaddBanshee]

This question is directed to those who have used the Race Logic Sport Port Stage III SuperStock templates.

I have placed the exhaust template in the cylinder just to observe. Here is the concern: All along the very top edge the template partially covers (overhangs into) the opening of the existing exhaust port. The exhaust port (now) is basically an oval shape with just slightly larger near the bottom of the port. The edge of the template at the top protrudes into the port but only about 1mm. Between the very top and the outside edge of the port the template overhangs into the port much more, about 2.5mm.

Is this normal or should there have been more material there? I am beginning to think the exhaust has already been ported to some extent

I bought this bike used and the owner did not really know what had all been done to it. The intake tunnel & windows have definately been smoothed and radiused, as well as the entrys into the transfer ports.

So on a normal "STOCK" cylinder would there be grinding required on all sides of the port to reach the lines from the template?

This quad has always run like hell on wheels ever since I had it..maybe this is part of the answer.

Thanks for any input

[Banshee~]

What all do you have done to your bike? What elevation are you riding at? And what size of jets are you running? Let us know that and we might be able to tell you if its been ported. You might call racelogic up and ask them .

[FASTOYS]

Your stock exh port should have a lip in it around the top.

[BaddBanshee]

The top of the exhaust port is 27mm from top edge of the cylinder all along the top of the port. It is not trianguler shaped like the template. There is no lip around the exhaust port.

I have 310 mains and running at sea level. I bought it used - already had mods when I got it. (Toomey T-5's, Cool-Head 19cc, Uni Filter, 1/4" reed spacers, boost bottle, TORS removed)

There has been some amount of work done to the ports - I didn't do it however so can't be sure just what has been done.

Thanks

[hittintrees srh]

Usually an easy way to tell if its been ported, is to look into the intake port. If it still has black pain, its unported, if its bare metal, its ported.

 

Though that alone couldent tell ya what kind of port you have done.

[SANDSTAR]

I have used those templates. Your bike has been ported before. At least the exhaust, from your description.

What does it look like when you put the intake template on?

Those are very good templates, but you should still measure them to make sure they were cut symmetrically.

[BaddBanshee]

Took measurements of the exhaust port and called Race Logic - determined cylinder has been ported - the exhaust is not as wide as the widest part of the template but is more flat on the top edge. After discussion with Race Logic decided to just leave exhaust port as is for now. Putting one port job on top of another does not seem like good idea. I am going to do the intake windows just the same and take what gain I can get.

SANDSTAR = How did port job work out with thses templates that you did? Happy with it? Seems like the intake windows get opened up a lot huh? Did you open the widows fully as big as the templates?

Note: This quad has always ran like hell, I am just re-ringing the top end and couldn't help but do "a little more" while it was apart.

Thanks for input

Am listening for any more info offered...

[pimpeinkc]

don't do it, my buddy did that to his and it never seemed right.