Another reason why I think trinity pipes suck!

[Wifesblaster]

Well I decided to do some jetting on the blasty today. I have a keihin 35pwk. My jets were 42 pilot, cel needle, and 158 main. Did a plug chop and it was super lean. Hardly any color on the smoke ring. I ride at sea level. So I broke out the trusty slickerthanyou leak tester. Well I thought I had the exhaust plugged up good with a piece of rubber behind the flange. Apparently the pressure gauge didn't think so! It was going out as fast as it was going in. Well here is the culprit.

As you can see the weld is interfering with the sealing flange. So I grinded it down and now it hold 7 pounds just fine. If you are running a trinity pipe and have an air leak you might want to check on this. I should mention this is the second pipe. The first one had horrible welds so they sent me a new one. The replacement wasn't much better. Nothing liked seeing burnt fuel run down your nice shiny pipe. Hopefully it will build up some and seal itself. Needless to say I will NEVER purchase a trinity pipe again!

 

[Wifesblaster]

http://www.blasterforum.com/exhaust-137/what-you-should-know-about-trinity-pipes-46933/

 

[Awk08]

agreed,
even my older style cone pipe is a biotch to seal, and had the same welds preventing flange sealment, a quick grinding/lapping had that fixed, but it still requires frequent sealing of the pipe to flange connection, pain in the azz...but worth every bit of it for the performance of the trinity's !!!!

 

[Wifesblaster]

Performance is GREAT. Just a little disapointed with quality control.

So will a leaking exhaust effect jetting?

 

[Wifesblaster]

Here is my plug chop with the 158 main and leaky flange.

 

[89blaster89]

agreed,
even my older style cone pipe is a biotch to seal, and had the same welds preventing flange sealment, a quick grinding/lapping had that fixed, but it still requires frequent sealing of the pipe to flange connection, pain in the azz...but worth every bit of it for the performance of the trinity's !!!!

do you have the real trinity awk?

 

[nboldman]

Performance is GREAT. Just a little disapointed with quality control.

So will a leaking exhaust effect jetting?

Yes it will! My exhaust was leaking and caused my bike to be lean.

 

[Blaaster]

Performance is GREAT. Just a little disapointed with quality control.

So will a leaking exhaust effect jetting?

A leaky exhaust header will cause a lean mixture!

The reason is that when the exhaust is scavanged some of the next fuel charge actually comes out into the pipe, if the flange is leaky, backpressure cannot ram it back into the cylinder.

There is a lot of rocket science when it comes to scavenging and this is the best way to describe what happens unless you are looking for an hour long explanation.

 

[Wifesblaster]

I understand thanks.