Exhaust BHP Speed - I'm "Baffled"

Right, I'm going to take the plunge & buy a new exhaust - once I've plucked up the nerve to buy a hack saw & chop the existing one up.

Not sure what I'll get yet, but loud & street legal.

Anyways this extra 3-5% bph that the manufacturers go on about - how does that affect the bike - Is it quicker acceleration? Higher top speed?

Is that normally with baffles or without?

What is a baffle & should I care about them? Do I want to remove them?

Is it easy for a muppet to put an exhaust on?

Thanks

Dirk

[Viney]

Dude, if your not a 100% in fitting your exhaust, my rates are reasonable, and live in Bromley.

The 'gain' is all subjective realy. It would be with the baffles out and with the bike fueling properly. You will notice a difference in the 4-5k region, as most cans remove this 'emmisions' flat spot.

HTH

[mattSV]

Originally Posted by Kinvig

Right, I'm going to take the plunge & buy a new exhaust - once I've plucked up the nerve to buy a hack saw & chop the existing one up.

Not sure what I'll get yet, but loud & street legal.

Anyways this extra 3-5% bph that the manufacturers go on about - how does that affect the bike - Is it quicker acceleration? Higher top speed? Potentially yes to both - power in mid range will normally benefit more than top end. Fuelling may be smoother as it tends to flatten any dips in power. However 2-3 bhp increase is not that significant that it will totally transform the bike

Is that normally with baffles or without? Normally, a baffle-less can will make more power as it is less restricted than with the baffle in

What is a baffle & should I care about them? Do I want to remove them? Some cans have a removable baffle - usually a tube within the outlet - that restricts the exit flow from the can to keep the noise within legal limits. If you want more noise (and a tiny bit more power) then remove it - I have removed mine and I don't care about it

Is it easy for a muppet to put an exhaust on? Kermit would probably be allright, Gonzo's nose would get in the way. I wouldn't let Animal anywhere near it - he would only wreck it
Thanks

Dirk

HTH

Originally Posted by Kinvig

Is it easy for a muppet to put an exhaust on?

I did mine. That's your answer

Originally Posted by Kinvig

Anyways this extra 3-5% bph that the manufacturers go on about - how does that affect the bike - Is it quicker acceleration? Higher top speed?

It's all bull, you'll not notice any real difference, but boy will it sound great .


.

Originally Posted by jonboy

It's all bull, you'll not notice any real difference, but boy will it sound great .


.

There's a significant psychological increase in BHP tho, and an equivalent reduction in mental age

Originally Posted by Dr Rich

There's a significant psychological increase in BHP tho, and an equivalent reduction in mental age

Ah,you mean PBHP? Yes, loads of it — great stuff.


.

[fizzwheel]

Originally Posted by Kinvig

Anyways this extra 3-5% bph that the manufacturers go on about - how does that affect the bike - Is it quicker acceleration? Higher top speed

It made naff all difference performance wise. I found I got slightly better MPG and also it seemed to rev easier. It definatly spins the motor up a little faster with a end can on it.

Originally Posted by Kinvig

Is that normally with baffles or without?

What is a baffle & should I care about them? Do I want to remove them?

Depends on the can some cans give more BHP with the baffles out. Some cans give more BHP with the baffle in. There was a test in Ride Magazine ages ago that I read about this.

A Baffle is normally a steel tube that is inserted into outlet of the exhaust it makes the exhaust quieter. I took the baffles out of my can before I put it on the bike. It makes a better noise without them in. the sound is deeper with more vtwin rumble.

Originally Posted by Kinvig

Is it easy for a muppet to put an exhaust on?

I managed mine OK, it might seem daunting taking a haxsaw or angle grinder to your pipe but it really isnt difficult. Its been covered a few times if you do a search you'll get some really great tips.

HTH

[Sid Squid]

Originally Posted by jonboy

It's all bull, you'll not notice any real difference, but boy will it sound great .


.

Correct. Every word a gem. There's lies, damned lies and statistics, but by far the worst utter howlers are BHP figures. Ignore - it's mostly bollox.

[Spiderman]

I took the attitude that no can is gonna make any perceptible diffrence to my speed so all i wanted after that was the "right" sound and for it to be legal.

I ended up with a G-force street legal jobby. Everyone whos ridden with me says how good it sounds and ive even been chased by a cop on a bike who thought it must be a race can. Boy was he suprised that it has a BS stamp on it.

Ok, my baffle is out but the stamp aint on the baffle so its still pretty legit for wandering eyes.

This is what i got http://www.gforceexhausts.co.uk/new_page_4.htm its the top one and i fitted it myself. Very worried but it was easier than i expected.