Author Topic: Benji vs. Kerker vs. Mac  (Read 12280 times)

0 Members and 3 Guests are viewing this topic.

Offline scondon

  • No way my run was THAT slow, must be an
  • Old Timer
  • ******
  • Posts: 3,137
  • Mmmm......tasty bugs
Re: Benji vs. Kerker vs. Mac
« Reply #50 on: November 07, 2007, 12:48:59 PM »
Is it just me or ? The pic Andoo posted..looks sorta like the oil cooler blocks enough air to not make it run any cooler?/.. maybe just my eyes..

   I was wondering what that was myself. I can read "HOPKINS" written across the front. Is it  a cooler or something else ???
Give me..a frame to build a bike on, and my imagination will build upon that frame

Offline KB02

  • Take it easy there, Sonny, I'm an
  • Old Timer
  • ******
  • Posts: 3,760
Re: Benji vs. Kerker vs. Mac
« Reply #51 on: November 08, 2007, 04:47:00 AM »
Can anyone ID the exhaust that came on my bike?  It's got some surface rust, any way to clean that up and get it shining again?

You can also try a product called "Never Dull." It can be bought at most local auto parts stores.
Check out this post:
http://forums.sohc4.net/index.php?topic=22388.0
1978 CB750K Project
2000 Ducati ST2
...and a pedal bike

Join the AMA today!!

My project thread Part I: K8 Project "Parts Bike"
My project thread Part II: Finishing (yeah, right) touches on Project "Parts Bike"

Offline hopterfixer

  • Hot Shot
  • ***
  • Posts: 520
    • My flickr Gallery->
Re: Benji vs. Kerker vs. Mac
« Reply #52 on: November 08, 2007, 05:14:24 AM »
0000 Steel Wool and chrome polish.  Put the chrome polish on the the steel wool, rub, repeat. 

Offline Badger 5

  • Hot Shot
  • ***
  • Posts: 338
    • Gallery
Re: Benji vs. Kerker vs. Mac
« Reply #53 on: November 15, 2007, 05:23:51 AM »
Ordered my pipes from Benji today. I ordered the tuneable so will have a seam and won't be as good looking but I hope this allows the exhaust system to be the last one I buy.
76 CB550K
75 CB200T
68 CL160 (AHRMA R78)
07 Triumph Bonneville Black
75 XS650

Offline CrisPDuk

  • Christ on a bike! Me, an
  • Expert
  • ****
  • Posts: 1,115
  • Oh happy day! 3rd December 2005
Re: Benji vs. Kerker vs. Mac
« Reply #54 on: November 15, 2007, 10:04:44 PM »
You've gone and ordered then have you Badger, you won't regret it I can assure you 8)

I was in two minds about getting the repackable system, I decided not to in the end because
a/ I'm not going to be using the bike enough for it to be wearing out anytime soon, and
b/ in my line of work I have a number of top class stainless steel welders I can turn to if I ever do need it cutting open for repacking
Education: Elitist activity. Cost ineffective. Unpopular with Grey Suits. Now largely replaced by Training."


1978 CB550 K3
1985 H100S

Offline mark

  • finds nothing amusing about being an
  • Old Timer
  • ******
  • Posts: 2,939
  • we're out here and this is where we are.
Re: Benji vs. Kerker vs. Mac
« Reply #55 on: December 10, 2007, 02:21:12 AM »
Hmmmmmm.... decisions, decisions......

Benjie's... Damn, they're spendy. However, stainless is forever. Also, IMHO, the 4-2 looks and sounds better on a relic bike than the 4-1. 4-1 makes it sound like some darn newfangled crotchrocket contraption. bah. Did I mention they're spendy? WTH, it's only a couple hundred more than the Kerker. Maybe next time.
How come nobody else in the world has noticed that Benjie calls them "pee shooter style mufflers"?

Kerker... Good reputation but they are still steel and cost almost as much as 2 mac pipes. Dennis Kirk does offer an easy financing plan. See above regarding that 4-1 sound. Bike looks lopsided with one pipe.

Mac... Whadda ya want for $300? A nice budget-oriented alternative to rotten 30+ year old plumbing. Makes bike look and sound like a newfangled crotchrocket contraption, if that's what you're in to. New exhaust for less than the bike cost... What a novel concept.


My 550K had a rusty leaky 4-2 of unknown origin. Sounded sorta ok if you didn't listen too close. Looked like crap. Also looked like one baffle was rotted a lot more than the other. The parts bike had rotten stock 4-4 setup. No help there.
Got a slightly used black/chrome mac setup off feebay. On my porch for just under $90. Put it on and it looks better than what was there. Seems to be less engine clatter at idle.. maybe that rotten baffle. Bike looks lopsided. Bike sounds like some sort of a newfangled crotchrocket contraption. oh well. Whadda ya want for $90 ?
I will probably bead blast and paint the header sometime this winter.

I am hoping that the 4-1 look and sound are like a fungus. At first it makes you sick, then it grows on you.

Maybe Benjie will get an easy payment plan like Dennis by the time it wears out.


 ;D


Happy trails.



« Last Edit: December 10, 2007, 02:34:31 AM by madmark73 »
1976 CB550K, 1973 CB350G, 1964 C100

F you mark...... F you.

Offline CrisPDuk

  • Christ on a bike! Me, an
  • Expert
  • ****
  • Posts: 1,115
  • Oh happy day! 3rd December 2005
Re: Benji vs. Kerker vs. Mac
« Reply #56 on: December 10, 2007, 05:10:46 AM »
How come nobody else in the world has noticed that Benjie calls them "pee shooter style mufflers"?


It has actually been commented on in other threads on the subject Mark ;)



Maybe Benjie will get an easy payment plan like Dennis by the time it wears out.

He does have an easy payment plan, 50% when you place the order, and 50% when they're ready for shipping, they don't come that much easier ;D

Earning the cash to meet said payment plan, and stopping the wife/girlfriend/kids (or any combination of same) from mis-appropriating it, is where the difficulties start ::) ;)
Education: Elitist activity. Cost ineffective. Unpopular with Grey Suits. Now largely replaced by Training."


1978 CB550 K3
1985 H100S

Offline flipprboi

  • Full Member
  • *
  • Posts: 73
Re: Benji vs. Kerker vs. Mac
« Reply #57 on: December 13, 2007, 05:03:51 AM »
pee shooter was a typo at first, but... ;)

Anyway, thought i'd share something to you guys. Here's a new stainless exhaust design that we just finished. We just need to add carbon fiber heat shield by the rear shock area, add a bracket for the silencer and make some adjustments to the discs. We call it a " High side exhaust w/PEA TRAPP " :). The silencer is a disc based concept w/a dummy tip to give the silencer that pea shooter look.

El Poquito 350 Project Bike



-benjie







Offline CrisPDuk

  • Christ on a bike! Me, an
  • Expert
  • ****
  • Posts: 1,115
  • Oh happy day! 3rd December 2005
Re: Benji vs. Kerker vs. Mac
« Reply #58 on: December 13, 2007, 08:13:17 AM »
Hot damn Benji :o 8)


Inspired by the efforts of Tintin and others my next project is going to be a Yamaha XS650, if you can come up with something similar for one of then, you might just have another sale in my part of the world ;D
Education: Elitist activity. Cost ineffective. Unpopular with Grey Suits. Now largely replaced by Training."


1978 CB550 K3
1985 H100S

Offline flipprboi

  • Full Member
  • *
  • Posts: 73
Re: Benji vs. Kerker vs. Mac
« Reply #59 on: December 14, 2007, 04:46:58 AM »
Always been a big fan of twins specially the thump. We just bought two XS650 to add to project. Making the same exhaust set-up wouldnt be a problem. We should have something end of january.   

Offline DarkRider

  • Nomad.or Drifter...Def not a
  • Old Timer
  • ******
  • Posts: 2,611
  • Lone Wolf.....Among the herd of sport bikers...
Re: Benji vs. Kerker vs. Mac
« Reply #60 on: December 14, 2007, 07:55:39 AM »
When it comes to that X pipe i just sent them an email for pics of the system they offer for the Interceptor. Funny enough i have less options when it comes to the CB as well..Mind you at least theres aftermarket parts unlike the V4 stock cans only (or used Cobra F1s). But all i have found for the small CB so far is the Macs and Benjis set up. However neither really fit in with what i want to do so im more then likely going to be building custom baffled drag pipes.
'84 Chevy C10
'73 MGB Roadster
'69 Ford F250

Currently a rider without a bike

Quote from: heffay
so, you say just tie myself on with this... and steer w/ this?   ;D ;D  ok.  where's my goggles?   8)

Offline LoopsAndLogic

  • Hot Shot
  • ***
  • Posts: 600
  • Dang IT!!!
Re: Benji vs. Kerker vs. Mac
« Reply #61 on: December 14, 2007, 08:33:49 AM »
What I would like to know, if the Benji pipes are straight through, or baffled??

Cause that tone is amazing!!! And I'm pretty sure you can't get a sound like that with a straight through.

Is that 500 or 550 in the video, cam'd and bored?

It sounds very healthy!!

I would love to have a set, but the funds are running short as well. I need to sell a few none CB bikes and parts.

Has anybody fit a set of Benji's to their CB400F??

Thanks

LL
My rides:
75' 76' Honda CB400F Super Sports
86' Honda XR600R for Street Madness
84' Honda Interceptor VF500

Past Rides:
80' Honda CX500C Fully Dressed
81' Honda CB650C very nice!
83' Kawasaki KZ550 A3
78' Hondamatic 400 Hawk
80' 81' 82' Honda GL500 Silverwing Insterstate

Offline DarkRider

  • Nomad.or Drifter...Def not a
  • Old Timer
  • ******
  • Posts: 2,611
  • Lone Wolf.....Among the herd of sport bikers...
Re: Benji vs. Kerker vs. Mac
« Reply #62 on: December 14, 2007, 06:02:01 PM »
Wow...just watched the vid with the BCR exhaust..i must say..DAMN!! im having some second thoughts on it now....
'84 Chevy C10
'73 MGB Roadster
'69 Ford F250

Currently a rider without a bike

Quote from: heffay
so, you say just tie myself on with this... and steer w/ this?   ;D ;D  ok.  where's my goggles?   8)

Offline Badger 5

  • Hot Shot
  • ***
  • Posts: 338
    • Gallery
Re: Benji vs. Kerker vs. Mac
« Reply #63 on: April 05, 2008, 05:58:19 PM »
Sorry to bring this old thread back from the dead but I put my Benji pipes on today and they sound ridiculous.  Better sound than I thought they would have.
76 CB550K
75 CB200T
68 CL160 (AHRMA R78)
07 Triumph Bonneville Black
75 XS650

Offline Jeff

  • Hot Shot
  • ***
  • Posts: 452
Re: Benji vs. Kerker vs. Mac
« Reply #64 on: April 05, 2008, 09:41:49 PM »
Sorry to bring this old thread back from the dead but I put my Benji pipes on today and they sound ridiculous.  Better sound than I thought they would have.

We need a sound clip!

I have a black canister Mac 4 into 1 on my 77 550K. It's an ugly POS. I hate it. The PPO (previous previous owner) removed the baffle from it, so it's basically open. Not only is it ugly, it sounds terrible too. I really hate it, and even though the bike isn't mint, it would look SOOOO much better with new pipes.

I love the look of Benjie's exhaust, but the price is way over my budget. Not saying they're not worth it... I just can't afford it; they're more than I paid for the whole bike! And my only other beef with them is they seem, in photos anyway, just too long. The photo of the second bike on his exhausts page has the tip of the exhaust close to the back of the rear tire. To me the end of the pipe should be more even with the back edge of the seat... guessing here but maybe a good 8 inches shorter?

Still, a beautiful system, and the new high level pipes you have are just gorgeous, the header curves especially.

Jeff

fuzzybutt

  • Guest
Re: Benji vs. Kerker vs. Mac
« Reply #65 on: April 05, 2008, 09:49:54 PM »
i'm seriously considering a set of benjies pipes for my 750k. i have the kerker now and it's all rusty after just 2 seasons.

Offline ekim98

  • Expert
  • ****
  • Posts: 788
Re: Benji vs. Kerker vs. Mac
« Reply #66 on: April 05, 2008, 09:57:10 PM »
Sorry to bring this old thread back from the dead but I put my Benji pipes on today and they sound ridiculous.  Better sound than I thought they would have.
We need a sound clip!

I have a black canister Mac 4 into 1 on my 77 550K. It's an ugly POS. I hate it. The PPO (previous previous owner) removed the baffle from it, so it's basically open. Not only is it ugly, it sounds terrible too. I really hate it, and even though the bike isn't mint, it would look SOOOO much better with new pipes.

I love the look of Benjie's exhaust, but the price is way over my budget. Not saying they're not worth it... I just can't afford it; they're more than I paid for the whole bike! And my only other beef with them is they seem, in photos anyway, just too long. The photo of the second bike on his exhausts page has the tip of the exhaust close to the back of the rear tire. To me the end of the pipe should be more even with the back edge of the seat... guessing here but maybe a good 8 inches shorter?

Still, a beautiful system, and the new high level pipes you have are just gorgeous, the header curves especially.

Jeff

I can't say that my Mac pipe is ugly, but I agree that the Benjie pipe is to long IMO. I even shortened my Mac 3-1/2". But I wish I could afford a set of 4 into 2 Benjie's, but I'd rather spend that money on getting the head ported & polished and a mild cam and still have money left over.
Patriot Guard Rider - KY. Ride with Respect

78 750k  cafe bike sort of
67 305  Superhawk (working project)

Offline Badger 5

  • Hot Shot
  • ***
  • Posts: 338
    • Gallery
Re: Benji vs. Kerker vs. Mac
« Reply #67 on: April 09, 2008, 06:43:02 PM »
Not the best photos or camera work but I tried ;D  I'm not sure how to put a video clip on the forum so it's just a link.


http://s177.photobucket.com/albums/w211/krisbaustert/?action=view&current=MOV02481.flv





76 CB550K
75 CB200T
68 CL160 (AHRMA R78)
07 Triumph Bonneville Black
75 XS650

Offline Jeff

  • Hot Shot
  • ***
  • Posts: 452
Re: Benji vs. Kerker vs. Mac
« Reply #68 on: April 09, 2008, 07:25:14 PM »
Dang that sounded good.

Offline Badger 5

  • Hot Shot
  • ***
  • Posts: 338
    • Gallery
Re: Benji vs. Kerker vs. Mac
« Reply #69 on: April 09, 2008, 08:02:29 PM »
Dang that sounded good.

That sound bite does it no justice. 

Thank you benji ;D
76 CB550K
75 CB200T
68 CL160 (AHRMA R78)
07 Triumph Bonneville Black
75 XS650

Offline CrisPDuk

  • Christ on a bike! Me, an
  • Expert
  • ****
  • Posts: 1,115
  • Oh happy day! 3rd December 2005
Re: Benji vs. Kerker vs. Mac
« Reply #70 on: April 10, 2008, 01:52:26 AM »
Hey that bike sound's just like mine 8)

You'll find Badger that the tone gets harder and crisper when you put some load on the engine, 8)


I got my mate to give mine a squirt up the road just so I could hear it properly, nearly wet my pants ;D

When the old girl is rebuilt I'll try and get some vid clips posted :-\


To all those saying the pipes are too long, as they are custom made, I'm sure Benjie would able to make them shorter on request :)  To me though they look just right, replicating that sixties brit look perfectly 8)
Education: Elitist activity. Cost ineffective. Unpopular with Grey Suits. Now largely replaced by Training."


1978 CB550 K3
1985 H100S

Offline andy750

  • Really Old Timer ...
  • *******
  • Posts: 7,938
Re: Benji vs. Kerker vs. Mac
« Reply #71 on: April 10, 2008, 04:33:41 AM »
Very nice Badger!! But we need some more better photos of your bike in the light!! I am interested to see your colour scheme on the tank/covers and to get a better look at those pipes!

Also how about adding your exhaust clip in the Movies section so it dosent get lost in the threads ;-) Im going to do the same....

Looking and sounding good,
cheers
Andy

Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline Badger 5

  • Hot Shot
  • ***
  • Posts: 338
    • Gallery
Re: Benji vs. Kerker vs. Mac
« Reply #72 on: April 10, 2008, 05:24:37 AM »
Very nice Badger!! But we need some more better photos of your bike in the light!! I am interested to see your colour scheme on the tank/covers and to get a better look at those pipes!

Also how about adding your exhaust clip in the Movies section so it doesn't get lost in the threads ;-) Im going to do the same....

Looking and sounding good,
cheers
Andy

Yea sorry about that quality.  I was in kind of a rush to do it because it's going to be raining here for the next week.  I will get some better stuff up before too long. I bought the tank with that paint scheme and as soon as I find someone here in chicago to give me the paint I want it will change.  As of now it's the 750 scheme in black/gold.
76 CB550K
75 CB200T
68 CL160 (AHRMA R78)
07 Triumph Bonneville Black
75 XS650

Offline andy750

  • Really Old Timer ...
  • *******
  • Posts: 7,938
Re: Benji vs. Kerker vs. Mac
« Reply #73 on: April 10, 2008, 05:43:03 AM »
i like the black and gold although hard to see in the dark pics ;-) Where did you get your sidecover badges? Are they from Yamiya - did you glue them on? Look good from what I can see.

cheers
Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline Big Bob

  • Hot Shot
  • ***
  • Posts: 292
Re: Benji vs. Kerker vs. Mac
« Reply #74 on: April 10, 2008, 06:17:08 AM »
I can't play sound clips on my computer at work, but I can say that Badger's 550 sounds freakin' incredible in person.  Great stuff.

I've owned a couple different MAC exhausts.  They're crap, but the pipe is a useful starting point for something worthwhile.  Some stainless perfed tubing, some exhaust packing, a few minutes with a brazing torch...