I need some help with some ideas for my exhaust please?!?

RipinRC · 01-12-2009, 1:09 AM

I have a 01 rc51 and i want to make a custom slip on underseat exhaust for it. Can anyone give me information on where i could look for ideas or how i could go about doing this? i'm new to forums so bare with me.. i want the mufflers to be C.F. or titanium i am up for discussion for that though..

and i dont want to burn the undertail so i have to make an assembly for there as well.

Anybody have any advice or ideas? OOR if you think that i am just wasting my time you can let me know. I welcome ALL replys. thanks !

-nTg

WyoJames · 01-12-2009, 1:59 AM

i know ARC fabrication made some, looked hot too, don't know if they are still around tho.

lanbrown · 01-12-2009, 2:03 AM

You are probably going to take a hit on the power output. Undertail exhausts always cost power as well as make the center of gravity of the bike higher as well. This is why the '08 RR does not have an undertail exhaust anymore.

RipinRC · 01-12-2009, 8:32 AM

What do you think i should do? just put the titanium or c.f. on the stock layout?

-nTg

denzee · 01-12-2009, 8:52 AM

Personally I have always loved the sharp angled pipes on the RC. It sets it apart at just a glance. The other consideration is the tail is already quite thick on the RC (unlike an RR) and the addition of a couple of cans under there will likely make it way too fat through there. Also the pipes leading up to them would probably have to be externally plumbed and couldn't be tucked away inside making it dangerous from the high temps and maybe a little unsightly. A nice looking set of pipes of your choice would be the ticket I think.

SirSquid · 01-12-2009, 12:23 PM

I have to agree with "denzee". I have Remus C/F slip-ons that come up to the tail and form a sharp edge. You could also fabricate an exhaust that rests under the frame (yes... like a Buell) or slightly purtrudes off the side like the newer GSXRs. 'Hope you like to weld stuff...

slammp · 01-12-2009, 12:37 PM

+ 1 on ARC fabrication. I heard they relocated to Vermont. Google them they had some pretty good idea's (pricey though) 100% Titanium

nickthevan1 · 01-12-2009, 8:13 PM

look at the honda rc51 site thorston has made a few some look good but big bucks

RipinRC · 01-12-2009, 11:41 PM

haha i love to weld actually. thats what i do .

I think i am just going to go with just up grading the pipes. Any suggestions as to brands? Price isn't an object. ?.?

WyoJames · 01-13-2009, 1:11 AM

sato or akrapovic

RipinRC · 01-13-2009, 11:16 AM

thanks!

SirSquid · 01-13-2009, 4:39 PM

Remus... I don't know of the performance gains, but they sound mean. You should check out youtube. There are a bunch of videos covering the subject - just type "RC51 + exhaust" in the subject line.

Bigtoe · 01-13-2009, 4:47 PM

Exhaust sound and looks are subjective. With that being said, the high mounts look the best. IMO

deez · 01-13-2009, 4:50 PM

Quote:

Originally Posted by lanbrown

You are probably going to take a hit on the power output. Undertail exhausts always cost power as well as make the center of gravity of the bike higher as well. This is why the '08 RR does not have an undertail exhaust anymore.

Yep and for the RC51 it'll actually make less HP than stock. There is one exhaust for a RC, Satos. You get a nice power bump (something like 10hp and almost 10 ft lbs of torque) low in the rev range. They change the bike into a new animal. Forget the undertail nonsense.

Chum · 01-13-2009, 8:46 PM

Whatever you do, post pics after you do it.

WyoJames · 01-13-2009, 9:53 PM

agreed with chum

SP1 nut · 01-14-2009, 4:36 AM

Interesting thread... I'm thinking about a Buell style exhaust on my SP1. Why? Because I can and I love making stuff for my bikes. It will be a little interesting sorting out the pipework with enough room for a can, but it should be a fun project. The weather is great for riding here at the moment so it will have to wait for winter...

phizog · 01-14-2009, 6:00 AM

Quote:

Originally Posted by lanbrown

You are probably going to take a hit on the power output. Undertail exhausts always cost power as well as make the center of gravity of the bike higher as well. This is why the '08 RR does not have an undertail exhaust anymore.

Hmm I think you'll find the change is more due to market preference over actual output. Some gp bikes are undertail so further suggests otherwise to your assumption. In fact longer headers are often benefit to certain engine configurations, typically higher revving ones.That said, a dodgy custom undertail may very well lose power, and it definitely will if its not tuned for it.Good luck with the project.

RipinRC · 01-14-2009, 12:29 PM

thanks for all the posts. i will for sure post pics after i do what i do . i wouldnt want to lose power.. I will figure it out but all your info has helped a bunch! haha i'll post some updates at where i'm at and what not.

deez · 01-14-2009, 2:27 PM

There were a few exhaust mfr's that actually made undertail units for this bike. Dynos showed a loss of power too. Don't reinvent the wheel.

lanbrown · 01-14-2009, 6:17 PM

Quote:

Originally Posted by phizog

Hmm I think you'll find the change is more due to market preference over actual output. Some gp bikes are undertail so further suggests otherwise to your assumption. In fact longer headers are often benefit to certain engine configurations, typically higher revving ones.That said, a dodgy custom undertail may very well lose power, and it definitely will if its not tuned for it.Good luck with the project.

Apples to oranges. Do you ride your bike like a professional racer rides a race bike? Your bike is also not setup like a race bike.

RipinRC · 01-15-2009, 12:25 PM

no i guess i dont . hense why it isnt. i am getting a c.f. tank and pipes though..

hrc_spw · 01-28-2009, 9:48 AM

Quote:

Originally Posted by SP1 nut

Interesting thread... I'm thinking about a Buell style exhaust on my SP1. Why? Because I can and I love making stuff for my bikes. It will be a little interesting sorting out the pipework with enough room for a can, but it should be a fun project. The weather is great for riding here at the moment so it will have to wait for winter...

I've often wondered how a setup like this would look and work.
Keep us posted of your progress.
Cheers.