open pipes?

[RJz1100E]

well i have the bike running now with the open pipes.... it is very loud but i kind of like it...

:!: Ruh-row 8-[

Rj

 

[80GS750]

well i got the vh 4-1 on its way here..... its just too loud for around this neighborhood, personally i like it and wouldnt mind keeping it. but for the wifes sake and the local cops around here.... i will go with the vh...

here it is with the pipes i made on it..

 

[petelardo]

Thanks for posting that; I can't wait to see how much BETTER that 4-in-1 is going to look than those pea-shooters. I do hope you got black headers and canister for that screaming yellow paint job... Next, you'll need a Bikemaster Superbike bar, in black (cheap knock-off of the old K&N Superbike bars in black chrome), to put you in proper riding position when you open the throttle... Add some Pro-Grips gel-filled grips (try the 724 model), for long-term comfort... Looks like that brake torque arm could use a few shots of black paint as well... Finish it off with stainless steel brake lines... Hey, I'm having a LOT of fun spending YOUR money on this!

OK, just to be serious for a minute, I do hope you'll consider my suggestions... I also hope you haven't burned an exhaust valve while you're riding without a real exhaust system on there... the reduced back-pressure can really ruin an engine pretty quickly:

Step One - Exhaust valves glow red-hot

Step Two - Head of an exhaust valve breaks off

Step Three - Super-heated exhaust valve punches through red-hot piston crown, and falls into bottom end of engine

Step Four - MAJOR $$$$ engine surgery, or engine transplant required before motorcycle is rideable again

Step Five - Expensive lesson learned the hard way

A word to the wise; don't ride it more than you have without the V&H system installed...

 

[Killer2600]

And yes, size does matter to the exhaust note...when was the last time you heard a diesel electric train go by with an exhaust note that bothered you? Open exhaust there!!

turbo diesels are quiet because of the turbo which does a great job muffling the exhaust.

 

[80GS750]

the vh is on its way to my house right now! i hope it gets here tomorrow... i will be putting it on the second it gets to my house. i do have to ride it to the courthouse tomorrow for a vin inspection so i can transfer the title to my name.....

other than that i will not be riding it until i get the exhaust on it

 

[petelardo]

Hey, I wasn't trying to SCARE you with that last post, but for the sake of brevity, I didn't type ALL of Step Three, which SHOULD be:

Step Three - Super-heated exhaust valve punches through red-hot piston crown, and falls into bottom end of engine. Valve fragments and piston shrapnel destroy bearings, plug oil passages, and become welded to crankshaft, making grown man cry

I was sure you'd already figured that part out, but for those who read this in the future, and don't know what kind of bad things can happen to an engine, I've witnessed enough engine autopsies over the last 20+ years to know what the full definition of "catastrophic engine failure" really is...

Best of luck to you; I know you'll appreciate what using a real exhaust system will do for engine performance... not to mention the OTHER benefits of proper exhaust backpressure... ride safely, and WE WANT MORE PICTURES! when you install the V&H system...

 

[twistedwankel]

hi guys, couple questions here....

how many of you guys are running open pipes? are they full length, just header?

my factory exhaust was rusted off right after the header, so i chopped them down to just headers.... i plan to get the v&h 4-1 or comparable within a couple of months...

but for right now i just want to run some pipes to the back just to get the noise away from me.....


.....

When I first got my bike the megaphones were split and rusted off. But the H pipe was intact. What a beautiful sounding bike at high rpms going down the valley running thru the gears Even in town staying off the throttle it wasn't all that bad. Certainly not like a Harley with no baffles that makes ears bleed. I finally got the original megaphones near new off ebay and they are sweet sounding in the original trim Not like driving a formula 4 cylinder thru the esses tho'. That was really loud and sweet. I think you get enough back pressure off the flat H pipe restriction to keep it running good. Sounds like you just sawed off all 4 pipes into the air. That would be bad. Could scavenge all the heat out of the cylinder and do some real damage. Backpressure is mandatory to a point. In the old days Honda put a swinging factory washer inside the exhaust to "open" or reduce the flow/noise for country and city riding.

 

[jay66]

I used to have a 750 Honda with a 4 into 1 Kerker that I would pull in half once in a while. It was about 3 a inch pipe and wide open right under the foot pegs, Man that thing was loud. A buddy of mine said he could here me start it up from 10 miles away through thick woods. There is no Harley alive that is as loud as that 750 was. Needless to say I didn't leave it that way very long.

 

[80GS750]

mine does have the stock h pipe still, but 1 and 4 are open all the way back!!!

 

[80GS750]

ok, new vh on right now!!!! sounds amazing, streetable, and still loud enough to get a little attention!

thanks for all your help guys. this is one nice bike now!

 

[80GS750]

 

[Dave8338]

Now...doesn't that look better that the "50 cal. machine guns" you had on there? \\/ But, how does it sound? Good looking bike pal!

 

[petelardo]

Wowowowowow!

Wowowowowow!

Man, I am AMAZED at how much better that looks now! That V&H 4:1 looks like JEWELRY on your GS; for some reason, I thought it would look better in BLACK, but I can't imagine ANYTHING else looking as good as that does! I'll bet it SINGS now, instead of only SHOUTING... that HAS to be a MAJOR improvement!

 

[aosmith]

If you go to a bigger pipe diameter you'll actually lose horse power on a n/a application. You have to keep the velocity of exhaust gases up because you need to move faster rather than more.

 

[80GS750]

she looks and sounds amazing!!!! tons of people notice it and everyone on 2 wheels waves at me. i cant believe how good it sounds! i love this thing!

 

[80GS750]

thanks for the comments guys. i put a lot of hard work into her

 

[Road_Clam]

hi guys, couple questions here....

how many of you guys are running open pipes? are they full length, just header?

my factory exhaust was rusted off right after the header, so i chopped them down to just headers.... i plan to get the v&h 4-1 or comparable within a couple of months...

but for right now i just want to run some pipes to the back just to get the noise away from me.....


what are your guys thoughts and opinions on this? how loud is it exactly? does anyone have a soundclip?

are there any perfromance gains at all? concerns?


thanks guys for any input provided.....

The Harley guys might actually wave to you with drag pipes, everyone else will be giving you the one finger salute.....

Throttle response, and torque are drastically reduced with open drag pipes on a stock engine.

 

[80GS750]

i have the vh on now, and it runs awesome, great throttle response and sound too

 

[mriddle]

Very nice work .. you should be proud.


Mike

 

[80GS750]

i am very proud. i have riding the hell out of it for the last 2 days!!! and im not gonna stop until something breaks either.... yahoooo