Does this actually work? Drag pipes mod

Probably, same principle as any baffle without the noise reduction
 
Just stick a cork in it, about as effective.
Why use drag pipes if your not drag racing?
The losses far outweigh any gains.
It's a 'style thing' for people who know nothing.
I used to work with a lot of 'Harley guys', bunch of them recommended drag pipes on the 'girls bike' (883 Sportster)
It took an over weight asthmatic donk with 43 bhp all the way to a LOUD overweight asthmatic donk with 35 bhp, real good performance increase ::)
I would rather shit on fashion and have something that works than have a fashionable POS.
Whatever, follow the herd ::)
 
I am only asking because i need a cheap exhaust that somewhat works until i can afford a new system. The PO chopped my stock headers too short for any aftermarket slip on muffler.
 
Just find some 8" baffles they are like 5 bucks on eBay. Pack them with fiberglass and call it good until you can afford a new system.
It's not ideal but it will work.
 
I know a lot about being broke ;)
Get to local muffler shop and see if they will let you hunt through scrap to find a couple of pieces of pipe that slip over your front pipes (probably 1.5" OD)
You can then find or make some cheap baffles .
Bike will actually run a lot better with longer exhaust.
Fitting a washer as in your diagram could work pretty good with long pipes (at certain rpm it will be louder than short pipes if length is correct)
It is possible to tune by 'ear' ;D
Carburation will also be a lot easier to sort out
Aircooled VW Beetle 'stingers' should fit
 
What bike? I bet if you asked nicely, someone here has a set of head pipes or even a complete stock setup they'll sell you on the cheap.
 
The bike is a 74 cb550k. Crazypj I might do that. Will doing the washer quick fix shown in the diagram cause a decrease in hp or a rejet of the carbs?

Sent from my Nexus 7 using Tapatalk 2
 
I've got drag pipes on my Intruder and I've mucked around with those washers (they call them "lollipops"). I've tried all different sizes and positions and it's pretty much BS.

A washer resticting the flow in a straight pipe is not going to re-create the performance of a muffler.
 
On a CB550, either get a cheap 4:1 or do what I suggested.
Headers only suck on them (I've had several, still have the F1 I bought new in '77)
 
I kind of thought the washer thing was a load of bull shit. I'll start looking for an exhaust system then. Thanks everyone!
 
I actually tried it many years ago, didn't work for me and was too damn loud anyway (getting pulled over for excessive noise isn't any fun)
At least I didn't get a ticket though ;D
 
You must log in or register to reply here.

DTT Light or Dark

  • DTT Light
    • www.jadusmotorcycleparts.com
    www.lostapostle.ca/
    www.sparckmoto.com

    Spread the Love

    Back
    Top Bottom