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Raptor 700 Information => 700 Motor Mods => Topic started by: Magz on March 04, 2012, 10:26:25 PM

Title: HMF Duals!
Post by: Magz on March 04, 2012, 10:26:25 PM
Always wanted barkers duals  but since im a broke beaner......I went the jewest route!  :lol:
My first impression when I saw them done was :shrug: looks cool but nothing special........
now after riding all day on them WOW :woot:  

love the sound, I haven't heard many quads with custom exhaust bud DAMM! this bitch sounds sexy........
with the hmf single it sounded nice but kind of high pitched at higher revs...........
now with the duals it sound deep.......and strong..........like peels likes his men  :nana:

I also noticed it picked up some power on the butt dyno but I wont know that for sure till I take it in to tune.

well with out any further interuptions here are the pics.......

good, bad, tell me what you think.  let me know if you want more pics.


(http://i227.photobucket.com/albums/dd257/maguilar496/672f06db.jpg)
(http://i227.photobucket.com/albums/dd257/maguilar496/711c2797.jpg)
(http://i227.photobucket.com/albums/dd257/maguilar496/1d4744b3.jpg)
(http://i227.photobucket.com/albums/dd257/maguilar496/e906c384.jpg)
(http://i227.photobucket.com/albums/dd257/maguilar496/83227576.jpg)
(http://i227.photobucket.com/albums/dd257/maguilar496/24fb53a0.jpg)
Title: Re: HMF Duals!
Post by: Sand84 on March 04, 2012, 11:14:01 PM
Very  :pimp: for :mags:
Title: Re: HMF Duals!
Post by: Chillomar on March 04, 2012, 11:35:09 PM
(http://i363.photobucket.com/albums/oo75/topsshorty/CIMG1443.jpg)
(http://i363.photobucket.com/albums/oo75/topsshorty/CIMG1444.jpg)
(http://i363.photobucket.com/albums/oo75/topsshorty/CIMG1445.jpg)
took it for a spin and had to take some pics :jerkoff:
Title: Re: HMF Duals!
Post by: Magz on March 04, 2012, 11:37:46 PM
omar must like good looking rear ends..........  :lol:
Title: Re: HMF Duals!
Post by: Bert on March 05, 2012, 06:10:53 AM
How was installation?
So they are cheaper than DMC Force 4's ? 
Title: Re: HMF Duals!
Post by: rappyfreak on March 05, 2012, 06:53:13 AM
Very nice compadre! Those headers look really well made and pretty thick like peelsy likes his men  :lol:
Title: Re: HMF Duals!
Post by: funyun on March 05, 2012, 07:11:16 AM
Thats pretty cool, dam that piping is huge!
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 07:23:54 AM
How was installation?
So they are cheaper than DMC Force 4's ? 

only cost me $250 for an hmf slip on...... all ready had one.  :woot:

Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 07:25:22 AM
Thats pretty cool, dam that piping is huge!

THAT'S what im saying.........

my exhaust guy tells me its a true 2" stainless.......... but to me it looks bigger then the barkers 2.25 and 2.5"

I tell you what them bitches flow!
Title: Re: HMF Duals!
Post by: Krandall on March 05, 2012, 07:53:25 AM
Yea, it looks pretty big. Not sure I like how the headers are run so high up. Would have liked to have seen it more similar to how barkers/dmc's are run http://bob2bob.com/images/river/DSC02872.JPG

not quite so high up..

on the left side when sitting on it. how far does the pipe stick out? burn your leg?



But.. all and all.. HMF should have done this.. seriously. love the cans. they look freakin sexy. you should send the pics to HMF tell em lookat this biznatches!!!!
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 08:03:00 AM
Yea, it looks pretty big. Not sure I like how the headers are run so high up. Would have liked to have seen it more similar to how barkers/dmc's are run http://bob2bob.com/images/river/DSC02872.JPG

not quite so high up..

on the left side when sitting on it. how far does the pipe stick out? burn your leg?



But.. all and all.. HMF should have done this.. seriously. love the cans. they look freakin sexy. you should send the pics to HMF tell em lookat this biznatches!!!!


I agree told my buddy to copy the barker routing wich is similar to that pic you posted but
1. pipe is too think to make that turn corectly and
2.pipe was too big to tuck in close to the engine and fit over the starter like barkers do.

Rode all day yesterday and no issues, keeps leg warm but not too bad and I was wearing jeans.........some riding pants would probably be better.......
Title: Re: HMF Duals!
Post by: Peelz on March 05, 2012, 08:06:41 AM
 :clap: :clap: :clap: :clap:

VERY cool.

Way to be a mexi-CAN magz!!!

I've wanted to make a set of these for a long time but...I am an Ameri-CAN'T :rofl:  :rofl: :rofl:
Title: Re: HMF Duals!
Post by: Krandall on March 05, 2012, 08:26:24 AM
I think jeans would be better than riding pants, jeans are cotton where as riding pants are nylon/polyester which would melt to the pipe.

Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 08:34:51 AM
ahhhh I'll stick to jeans then.......I've never owned a pair of riding pants...... :lol:

Thats why I took the quad riding yesterday, to evaluate if the pipes by your legs need a guard.........saw some nice universal carbon fiber ones online.....

I dont feel the need for them.........it's staying  as it is.


Title: Re: HMF Duals!
Post by: Peelz on March 05, 2012, 08:44:35 AM
weld on a couple nuts and make a heat shield. you're totally gonna burn yourself on those.  :lol:


keep the kids away from it  :thumbs:
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 08:53:42 AM
weld on a couple nuts and make a heat shield. you're totally gonna burn yourself on those.  :lol:


keep the kids away from it  :thumbs:

just no more riding naked I guess :(

there goes our next pismo rally :cry:
Title: Re: HMF Duals!
Post by: Krandall on March 05, 2012, 09:39:07 AM
My brothers old 250x had a DG pipe. It was inset in the frame quite a bit. he ended up burning his leg BAD, was riding in shorts, he has a nasty scar from it.

Title: Re: HMF Duals!
Post by: Peelz on March 05, 2012, 09:40:19 AM
weld on a couple nuts and make a heat shield. you're totally gonna burn yourself on those.  :lol:


keep the kids away from it  :thumbs:

just no more riding naked I guess :(

there goes our next pismo rally :cry:

L-O-L

burns let you feel alive!


your quad is so EMO  :rofl:

Title: Re: HMF Duals!
Post by: SprinterX on March 05, 2012, 11:02:29 AM
Cans look great and the header fabrication skills are clearly evident.

I have a few observations and concerns.

1) Routing looks a little unconventional, but from your explanation I understand why.
2) The header pipe size looks very big and you say it was done with 2" SS. A ton of R & D goes into exhaust pipe sizes to get the best combinationn of flow and velocity for a specific application. My 460 cu in. Ford doesn't have primary header pipes that big and you have two of them in the one cylinder. I might have gone a little closer to the 1.375" - 1.5" size like other manufacturers.
3) I'd be inclined to get a heat guard on. Scars can have a great story but.
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 11:40:38 AM
Cans look great and the header fabrication skills are clearly evident.

I have a few observations and concerns.

1) Routing looks a little unconventional, but from your explanation I understand why.
2) The header pipe size looks very big and you say it was done with 2" SS. A ton of R & D goes into exhaust pipe sizes to get the best combinationn of flow and velocity for a specific application. My 460 cu in. Ford doesn't have primary header pipes that big and you have two of them in the one cylinder. I might have gone a little closer to the 1.375" - 1.5" size like other manufacturers.
3) I'd be inclined to get a heat guard on. Scars can have a great story but.

comment on 2).  I was thinking the exact same thing..........and every body i talked to told me barkers start with 2.25" headers and big bores went as big as 3" figured 2" was keeping it somewhere between stock and barkers......... not looking for every ounce of power just the cool factor of hmf duals.

we'll see how they tune when dynoed. Thanks for the comments.
Title: Re: HMF Duals!
Post by: Adam on March 05, 2012, 01:17:31 PM
very nice. one of a kind...
Title: Re: HMF Duals!
Post by: SprinterX on March 05, 2012, 01:56:56 PM
I think they must have been thinking core size in the silencer b/c I just put a caliper on my std core Barker header pipes and they're a tad under 1 1/2", 1.490 to be exact. Further along the pipe, after the connection they begin to megaphone up to about 2 1/2". Inside dimension of the tip is 2", so I suspect the core size of the silencer is also 2".
They should sound pretty good.  Riding buddy has an HMF single and it sounds nice.
Title: Re: HMF Duals!
Post by: Cammy on March 05, 2012, 01:58:08 PM
:woot:   Look sexy! Almost as much as maggy mounted on a sheep! (or vise versa)
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 02:08:17 PM
:woot:   Look sexy! Almost as much as maggy mounted on a sheep! (or vise versa)

:rofl: :nod: wouldn't expect anything less from you cammy :kiss:
Title: Re: HMF Duals!
Post by: preddy08 on March 05, 2012, 04:04:28 PM
Here's a good pic of the barker duals.
(http://i11.photobucket.com/albums/a195/preddy08/CIMG2421.jpg)

My sparks exhaust comes out of the head at 1.75" then collects into a 2.25" then steps up to a 2.5"
(http://i11.photobucket.com/albums/a195/preddy08/CIMG2369.jpg)
Title: Re: HMF Duals!
Post by: Magz on March 05, 2012, 05:56:55 PM
ahh cool............ thanks preddy!
I was under the impression the barkers started at 2.25" from header....... damm troy and pat.
maybe I got confused somewhere along the line.......lol.
thats why i asked for 2" lol
Title: Re: HMF Duals!
Post by: Krandall on March 05, 2012, 06:17:21 PM
guess you just need to build a BIG motor.........

oh darn.
Title: Re: HMF Duals!
Post by: SprinterX on March 06, 2012, 12:25:55 AM
My sparks exhaust comes out of the head at 1.75" then collects into a 2.25" then steps up to a 2.5"

WOW, that's interesting, thanx for sharing. I questioned them about pipe sizes on some of their systems with the following response.
"The standard core & big core are 1.375"-1.875"-2.00", and all the XX6 systems are 1.375"-2.00"-2.25".  
Mind you this was a few years back and it looks like things have changed. Again, very interesting.
Title: Re: HMF Duals!
Post by: Magz on March 06, 2012, 09:43:51 AM
guess you just need to build a BIG motor.........

oh darn.

big motor it is!

backpressure pfsssssss who needs back pressure!

Ran freaken good this sunday when I took it out.......butt dyno is happy :woot:
even contemplated not changing a thing. hope the exhaust note doesnt change when I mod it more.
Title: Re: HMF Duals!
Post by: Magz on April 05, 2012, 12:28:33 PM
after testing and some issues........... i've ran it about 4 times now...........WOT..........

and the exhaust note did change........as troy woud put it " it sounds meaner that cat shit"

dyno graph soon to follow :flex: