Triumphrat

Mecchanica · 10-01-2006

Having raised the needles in the carbs a bit much....just easing into milk chocolate color on the plugs....I figured I had a little room to play. Soooooo.....out came the drill, centerpunch, and a selection of bits. I zeroed in on the back of the stock mufflers. First, three small holes in each...through the inner baffle plate, too. No significant change in tone or performance. Out to 1/4 inch. Small change in sound. Then to 5/16. Better, noticably better, no popping in the exhaust, no hesitation, so........on up to 3/8" holes, and I fished out the packing. Hmmmmm....nice tone, and as far as performance? Butt dyno says...................YES. I thnk I'll stop here, as I don't have any jets to play with, yet.......but you wait......I already have a 2" hole saw and figure I could have those baffles out in about 5 minutes.

caspianthruxton · 10-01-2006

any pics?

bonnieblackinfl · 10-01-2006

You will need longer than 5 minutes with the baffles, if I remeber correctly there's the metal end cap and 3 welded baffle chambers following that, plus the piping inside. I done mine, defently a pain, but the results are rewarding. I can see straight through now.

I suggest you remove the cans, get your drill, a dremel tool and a BF hammer and set aside an afternoon.

Good luck,
Greg

Mecchanica · 10-02-2006

Pics, ok, tomorrow in the light, after installing the dishwasher........I fooked about all day on mo'sickle things and SWMBO will have her pound of flesh tomorrow. Not much to see, just three 3/8" holes in a triangular pattern on the end of the can.
When I get the jet kit, I may just try three more before getting all medieval on the exhausts.
Oh, and you haven't seen my selection of BF and RBF hammers, not to mention air powered demons of destruction.

rodburner · 10-02-2006

Just use your air grinder and a sanding disc on the end of the can.It will look like this in those same 5 minutes.

Now you have some room to work. :-D

PolockJoe · 10-02-2006

I'm with Rodburner...do not use a hole saw.

Mecchanica · 10-02-2006

What would argue against it? I have it, it cuts nice round, clean-edged holes, it can't slip off and outrage the exterior chrome....seems nice and easy and controllable. And I mean five minutes for BOTH.

PolockJoe · 10-02-2006

Grinding is going to give you more control especially if you have already drilled holes into the end of the pipe.

I tried using a hole saw but after fighting with it and I used the grinder. To each his own.

sweatmachine · 10-02-2006

I hate drills, but I love my grinder!

I use a drill press whenever possible.

bonnieblackinfl · 10-02-2006

Been there done that with the hole saw, sucks and difficult to keep centered, I don't recommed it. If you have a dremel, at this point you need to get one, cut the exaust end in an octagon pattern with a grinding disk, knock out the chrome center and finish off a round hole with 80grit sanding barrels.

It's a pain in the arse, but I think the level of frustration I reached made it more satisfing when I was finished.

Greg