Author Topic: Stock Exhaust Mod (Read 21774 times)

PeteSC · « **Reply #15 on:** April 25, 2005, 02:04:55 PM »

Would it be more productive to attempt to grind out the baffle in the midpipe?

More noise, and a bit less restriction, and you'd have a better midpipe to use with an aftermarket slipon that doesn't come with one!
(When/if you aren't happy with the homebrewed attempt.....)

jwalters · « **Reply #16 on:** April 25, 2005, 02:51:15 PM »

Great idea Pete. Thanks.

jwalters · « **Reply #17 on:** June 16, 2005, 01:21:52 PM »

Funny stuff. Most of you probably don't even remember this thread, it's been a while. Anyway, last night my buddy Jason (land_shark) and I did some carb work and a valve adjustment on my 1G B12. Being very cafeful not to crack any of my parts. (just had to throw that in there Jason!)

After finishing that, we were kinda goofing around with the bike, and decided to take off the exhaust. Lo and behold, the exhaust had already been completely drilled out! Here's a picture! I just thought it was funny, discussing it on this thread for a week, and it had already been done by the previous owner.

I think this bike at one time was pretty tricked out, b/c it also has the 2inch mod on the air box, that has since been taped over. I removed the tape this morning to try and see how it would run, but it was running way to lean, so I think they must have put the jets back to stock. I'll be pulling the carbs apart later in the season and find out for sure. It runs like a champ now so I won't mess with it till I do my holeshot second stage jet kit and exhaust sometime this fall.

Ok, I'm rambling, I just wanted to share this funny story!

PitterB4 · « **Reply #18 on:** June 16, 2005, 03:48:56 PM »

Quote from: "jwalters"

Being very cafeful not to crack any of my parts. (just had to throw that in there Jason!)

At least he could refer you to a good machinist!

jwalters · « **Reply #19 on:** June 16, 2005, 03:50:21 PM »

Actually, I did the refering!

txbanditrydr · « **Reply #20 on:** June 17, 2005, 01:32:35 AM »

And.... I'll bet y'all used a torque wrench.

JV · « **Reply #21 on:** July 06, 2005, 12:45:51 PM »

My turn to show off.

I've designed and built a silencer. It sounds like distant rolling thunder while cranking and gives a very smooth tone at high rpm. I designed it for a racecar that uses a Honda F4i with custom intake and exhaust. Final weight was 3.25 pounds. That's for a 20" batted length (damn long...).

I spec'd out my own perforated core (the secret) and used (big secret) $4/ft Fibrex mineral wool PIPE INSULATION instead of fiberglass. It's dirt cheap, will not burn out, and didn't make me itch! If you pour gas on the mineral wool, it will burn. But Fibrex assured me that backfires are nothing to worry about. I've seen absolutely no problems with the insulation.

To get the stock can louder, I'd repack it. Not with mineral wool, but with a Two Brothers or Yosh repack kit. They use steel wool & fiberglass. They use the steel wool so that the batting doesn't bun out. However, this makes the can louder (TADA!). Should be ~$20.
Or you could talk me into doing production...

Picture to come.

JV · « **Reply #22 on:** July 06, 2005, 01:03:29 PM »

Skippy the wonder sloth gave me a scoth-brite finish. I hate (TYPO) the polished look on a racecar. Shiny is for babies, klepto's and Harley owners.

Again with the huge pictures! Somebody fire me!

Red01 · « **Reply #23 on:** July 06, 2005, 08:39:23 PM »

Quote from: "JV"

Again with the huge pictures! Somebody fire me!

You're not fired - this time.

Please don't post such huge pics though. I fixed it for you this time....