New Custom Under Engine Exhaust - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

 
LinkBack Thread Tools
post #1 of 21 (permalink) Old 04-20-2006, 12:54 AM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
New Custom Under Engine Exhaust

Havent posted up anything bout my bike over here in a while, so I figured I'd share this. I cut up two cherry bombs, cut my header down and then heated it up and bent it how I needed it positioned, then welded the shortened cherry bombs in place. Turned it on, and it was LOOOOUUUUDDDDD! So I bought some baffles that are used in race cars with open headers or straight pipes to reduce noise so they meet noise regulations. I welded those in and it sounds awesome now. I just gotta get 1 new header bolt so that I can tighten the header down so it stops leaking, then I'll get a sound clip for ya'll.

Anyways, heres the goods:

the header(s) after being cut:

this is the bracket I cut that normally would hold the left and right sides togeather:

this is the section of the header I cut off:

my new exhausts:

here they are next to the sections I removed:

I was pretty proud of myself at how nice my welding was since I hadnt touched an oxy/acetylene torch in almost 2 years, and since my MIG welds I did on the subframe all looked like ass.

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 04-20-2006, 12:54 AM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
more pics (stupid image limit, lol)
One side freshly welded:


Other side:


On the bike:

the block of wood was what I used to get it to sit vertically so I could line em up and make sure they were even height and whatnot.

Other side of the bike:


Baffles in the exhaust:


I decided to weld all the way around (instead of just tacking it in) so that it would be sealed and the exhaust couldnt escape around the baffle. This was a bitch to weld since being inside the pipe the flames would hit the baffle and kind of reflect back out and it burnt the crap out of my left hand (I ended up wearing 2 pairs of gloves, and one caught on fire, lol). At least I never have to worry about it falling off!:


What do ya think? It looks sweet when you look at it in person.
The kickstand does hit the pipe, but it goes far enough up that it locks in position, so it shouldnt be a problem. I can always get a skinner spring for it and that should solve the problem too.

And yes, the chain needs tightened. It was tightened to the correct slack, but its brand new, and just the 20 minute ride up to school seems to have stretched it a bit. Either that or my wheel moved forward (which wouldnt be good, lol)

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
post #3 of 21 (permalink) Old 04-20-2006, 01:18 AM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
Oh, and it will be all painted black. I know, the red with the burnt part and flash rust looks soooooo awesome, but alas, black it will be.

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
 
post #4 of 21 (permalink) Old 04-20-2006, 02:17 AM
Moto GP Racer
 
SLAPS808's Avatar
 
Join Date: Oct 2005
Location: San Diego County, SoCal
Posts: 28,565
Thanks: 179
Thanked 365 Times in 284 Posts
Feedback Score: 56 reviews
daymn.....thats one helluva project you got goin there.

i gotta see the finished product. wild stuff mang! :D






Quote:
Originally Posted by struckbylitenin View Post
I wanna learn from the master king dingaling
SLAPS808 is offline  
post #5 of 21 (permalink) Old 04-20-2006, 08:05 AM
World Superbike Racer
 
Sodamninsane's Avatar
 
Join Date: Jul 2005
Location: Troy or East Lansing, MI
Posts: 1,743
Images: 15
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
wow, i've considered doing something like this but I probably would have just straight piped it... no baffles... nice job.

Sodamninsane is offline  
post #6 of 21 (permalink) Old 04-20-2006, 09:51 AM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
It was way too loud for my taste with just the cherry bombs and i would imagine straight pipe would have been even louder. I mean, with just the cherry bombs it would have drown out most harleys and choppers, just for an idea how loud it was.

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
post #7 of 21 (permalink) Old 04-20-2006, 10:05 AM
 
Join Date: Apr 2005
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Wow, most people usually have something negative to said about homemade exhausts, but that is fricken sweet! Hats off ta ya for being different. I always thought Buell-style exhaust to be the smarter way to go - less weight, lower center of gravity, and makes the ass of the bike cleaner. Good job!
st lewis is offline  
post #8 of 21 (permalink) Old 04-20-2006, 10:23 AM
 
Join Date: Mar 2006
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
looks good man.
the only concern i would have with that is the exhaust coming out so close to the rear tire... and possibly melting the tire while standing at a red light? but then again, i dont know what im talking about; just the first thing that came to mind.
looks really nice though, cant wait to see it in all black.

peter
pmilla1606 is offline  
post #9 of 21 (permalink) Old 04-20-2006, 10:24 AM
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
bet the tires heat up really fast :) I like it alot i bet its loud as hell too!

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #10 of 21 (permalink) Old 04-20-2006, 10:33 AM
Superbike racer
 
Join Date: Jul 2003
Location: NC
Posts: 6,177
Images: 52
Thanks: 0
Thanked 3 Times in 3 Posts
Feedback Score: 0 reviews
errrrrr, creative anyway. honestly i don't know what my reaction is. I guess I'll have to wait and see the bike with the body work remounted and some more pics. I will definately give you props for creativity....

i'd like to know what the bike does on a dyno now too.

CCS EX#100
BigTuna is offline  
post #11 of 21 (permalink) Old 04-20-2006, 10:34 AM
 
Join Date: Aug 2005
Posts: 888
Images: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
props! cant wait to see the completed project
DarkS1de is offline  
post #12 of 21 (permalink) Old 04-20-2006, 10:35 AM
Superbike racer
 
Join Date: Jul 2003
Location: NC
Posts: 6,177
Images: 52
Thanks: 0
Thanked 3 Times in 3 Posts
Feedback Score: 0 reviews
psssssst, your overflow bottle is in the wrong place ;)

CCS EX#100
BigTuna is offline  
post #13 of 21 (permalink) Old 04-20-2006, 10:39 AM
 
Join Date: Feb 2006
Posts: 211
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Looks F'in nuts man..i like it, but im not so sure im gonna just run out to the garage and scrap my old exhaust just quite yet...but still sweet
F4iTO600rr is offline  
post #14 of 21 (permalink) Old 04-20-2006, 02:11 PM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
Thanks guys.

Yeah, its pretty loud. Its a little louder than a D&D I think, but its not really earsplitting or obnoxiously loud. I like it - its mean as hell, real deep - somewhere between a bad ass ducati, a sportbike, and a muscle car (its really hard to describe, lol). I can always add some fiberglass packing inside the baffle if I really want to quiet it down more. Just would have to pack it in there, then tack on a screen at the end - real easy.

As far as the tire getting too hot, thats a realistic concern, no doubt, but the way they are angled, they should blow out on either side of the tire, so if anything it will just serve to heat up the sidewalls - which really I would think would be a good thing. Who needs chickenhawks, right? lol. If I ever do start seeing some meltage, or notice it getting too hot, I can always just buy some 90 degree pipe pieces from autozone and cut off the straight exit pipe and weld in those to point it off to the side or down or something.

Tuna, the overflow actually mounts up inside the subframe, I just knocked it out of place when I was working. I actually chopped the battery box as small as I could and then moved it as far forward as I could - it sits about half under the tank and half under the seat. Then I mounted the cooland bottle right behind it, up inside the subframe. And I mounted my reg/rec, rear brake reservoir, ecu, and fuel cut off relay all inside the subframe. The wiring runs so that it is all hidden inside the frame and subframe, so when it is complete, I'll have a completely smooth undertail (kinda like the new r6) and all that stuff will be completely hidden from sight. NO coolant bottle, no brake reservoir, no wiring, nothing will be visible when its done. And I tucked all the wires up in the frame as much as possible so the motor looks pretty clean from the side, and you really cant see hardly any wiring from the outside, except stuff that runs to the motor (cant do nothing about that, lol)

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23


Last edited by cbrf23; 04-20-2006 at 02:16 PM.
cbrf23 is offline  
post #15 of 21 (permalink) Old 04-20-2006, 02:16 PM
 
Join Date: Jul 2003
Posts: 2,242
Thanks: 0
Thanked 3 Times in 2 Posts
Feedback Score: 0 reviews
NIce job...well done.
vizsladog is offline  
post #16 of 21 (permalink) Old 04-20-2006, 02:20 PM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
Sodamninsane, the other thing I thought of when I was contemplating how I was gonna do this was using the little 2 stroke racing mufflers. They are really small diameter, and would work well I think. Of course, it'd still be loud as hell, but seriously, you dont even wanna know how loud straight pipes are. Think of the loudest chopper you ever heard, then double that for the 4 cylinders v. 2 and you can get an idea.
The reason I didnt go with them is cause these were only $17 a piece, and becasue the 2-stroke cans usually have a small (less than 2") intake pipe, so you would have to cut that out and widen the hole and then weld in a 2" pipe. It woudnt be hard, but for the price this was the best option I decided.

I'll get a sound clip once i get the new bolt to take care of the header leak. I should probably buy new gaskets as well - which sucks cause I just bought those like a month ago .

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
post #17 of 21 (permalink) Old 04-20-2006, 03:25 PM
AMA Supersport Racer
 
apbt600rr's Avatar
 
Join Date: Apr 2004
Posts: 907
Images: 3
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
wow, i'm really on the fence about this also. The idea is definitely awsome and it was a cool project regardless. With what you have now i would definitely put some angled tips that shoot it down and out. Would like to see how it looks with bodywork on also.

*oh yeah...how come in the pictures the tail section looks like its 42 feet above the rear tire?

Jardine Slip-On (Titanium) - Polished Lips and Heelguards - Larry's FE System - Vortex Frame Sliders - Intuitive Swingarm Sliders - LP-V Short Stalks (Front and Rear) - Sprocket Specialists/Driven 15/43 Sprockets - DID 520 chain- Woodcraft Rearsets - Vortex Race Clip ons - Pazzo Levers
apbt600rr is offline  
post #18 of 21 (permalink) Old 04-20-2006, 04:06 PM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
I dunno, good question apbt. I think its just the angle of the pics mostly. I mean, there is a lot of clearance, but its really not that high. In the pic it looks like one of those euro fighters (not my taste, but whatever) and it doesnt look anything like that in real life. I'll get better pics when I do the sound clip.

Bodywork's probably got a month or two left on it. I got the two sides layed, and I just glued the molds togeather for the upper. So tonight I'm gonna go sand the upper and get it taped up and prepped for glassing, then if I feel up to it I'll glass it tonight, and if not I'll lay it up early tomorrow morning. Then when thats drying I'm probably gonna sandblast and paint the exhaust, and maybe I'll start trimming my two side body pieces and get em off the molds. Once they are all off the molds, I still gotta cut em and fit em and glass em togeather, fab up some body mounts, cut them into two pieces (upper/mids and lower) and do all the bodywork. I also still gotta make an undertail and subframe covers, which I havent started yet. Those wont take long, but its something that needs done before I can paint it. I decided I'm gonna pay someone to paint it, cause as much as I would like to do it myself, I really want it to turn out showstopping nice. So I figure the paint is a touchy deal so I'm gonna let a pro do it.

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23

cbrf23 is offline  
post #19 of 21 (permalink) Old 04-20-2006, 07:54 PM
 
Join Date: Sep 2005
Posts: 105
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by pmilla1606
looks good man.
the only concern i would have with that is the exhaust coming out so close to the rear tire... and possibly melting the tire while standing at a red light? but then again, i dont know what im talking about; just the first thing that came to mind.
looks really nice though, cant wait to see it in all black.

peter

PRE-HEAT!.. not such a bad idea,,,, Just never stop at lights or stop signs.
dbosco002 is offline  
post #20 of 21 (permalink) Old 04-20-2006, 08:03 PM
Pocketbike Racer
 
mitchlguzin's Avatar
 
Join Date: May 2005
Location: NW of Chicago
Posts: 322
Images: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yeah...

I'm gonna have to see a pic with everything put back on...

If you want an exhaust like this so bad, buy an R6 or new gsxr
mitchlguzin is offline  
post #21 of 21 (permalink) Old 04-21-2006, 01:39 AM Thread Starter
AMA Supersport Racer
 
cbrf23's Avatar
 
Join Date: Nov 2005
Location: Willowick, OH
Posts: 587
Thanks: 0
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by mitchlguzin
Yeah...

I'm gonna have to see a pic with everything put back on...

If you want an exhaust like this so bad, buy an R6 or new gsxr
1. This is nothing like the new gixxer or r6. Those are just shortend cans and midpipes - I had that last summer. If you want to compare it to anything, compare it to a buell exhaust - at least those are under engine exhausts.
2. This cost me a grand total of $160 and time. Thats less than I could have gotten a used slip-on for, and its totally unique.
4. Considering my bike will be completely original, better looking, and should handle as good as most modern bikes (its all modern suspension, and mass centralized, low c/g). Sure its heavier and less power - but its pretty good for a 13 year old steel framed beast. Oh, and cost is less than half that of a new GSXR...I'm in school, and I dont have money just laying around. Why would I want something that when I drive down the road I see 5 other people with the exact same thing?
5. I'm in school for motorcycle design - this is my project for school, I designed and built this bike from the frame up.

1993 CBR F2 - 95 F3 Motor - 98 carbs - Stage 1 Jet Kit - 520 Chain/Sprockets -1/+3 - 2005 1000rr front end - 2005 GSXR 750 Clipons and controls - 2005 GSXR 750 Tail section - Custom subframe - 2003 600RR Swingarm, suspension, and rear wheel - 2001 f4i gauges - HID lighting - Under engine dual exit exhaust - Super streetfightering it now....
View Swingarm and Gauges how to's here: http://www.fotki.com/cbrf23


Last edited by cbrf23; 04-21-2006 at 01:43 AM.
cbrf23 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome