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Schutzhund
24th October 2009, 02:43
Sporty Specialties advertises; as they call it, the only true 2 into 1 exhaust system on the market for an Iron Head. They say it boost horsepower too. Has anyone tried tthis set up, or is anyone currently running it?:feedback

IronMick
24th October 2009, 02:52
This has been discussed here many times. Last i heard here recently they are no longer making them.

ericfreeman
24th October 2009, 03:01
A while ago I purchased 2 NOS 2-1 exhausts that I believe were originally made by Jardine back in the '70's. Very nice looking systems and I fitted one to my '78 and later swapped it to my '77 XLT. Lovely, deep rumbling sound without the harsh bark of my 2-2 slashcuts. But, my '78 has big valves, ported heads, R5 cams, 10:1 pistons, etc. and the 2-1 wasn't letting the motor breath well over 4k RPM. I went back to the 2-2's where my top end returned. I still have a new set of the 2-1's that I'll likely never use. Cost me $300 at the time. I'm keeping the used set since there's a scuff/scrape where my kicker hit the muffler before I re-bent the kicker arm. Here's a few pics of the 2-1 on my Ironheads.

Eric

http://i697.photobucket.com/albums/vv336/ericfreeman55/L1010279.jpg

http://i697.photobucket.com/albums/vv336/ericfreeman55/77%20XLT/P1000241.jpg

runingmouse
24th October 2009, 17:50
Hear is one on eBay you might like.

http://cgi.ebay.com/ebaymotors/Harley-2into1-Exhaust-Sportster-Ironhead-muffler-pipes_W0QQitemZ120484380090QQcmdZViewItemQQptZMoto rcycles_Parts_Accessories?hash=item1c0d6dbdba

jharback
24th October 2009, 18:56
A while ago I purchased 2 NOS 2-1 exhausts that I believe were originally made by Jardine back in the '70's. Very nice looking systems and I fitted one to my '78 and later swapped it to my '77 XLT. Lovely, deep rumbling sound without the harsh bark of my 2-2 slashcuts. But, my '78 has big valves, ported heads, R5 cams, 10:1 pistons, etc. and the 2-1 wasn't letting the motor breath well over 4k RPM. I went back to the 2-2's where my top end returned. I still have a new set of the 2-1's that I'll likely never use. Cost me $300 at the time. I'm keeping the used set since there's a scuff/scrape where my kicker hit the muffler before I re-bent the kicker arm. Here's a few pics of the 2-1 on my Ironheads.
Eric


Nice lookin' ironheads, Eric!

ericfreeman
24th October 2009, 22:32
Nice lookin' ironheads, Eric!

Thank you!

Bob F
25th October 2009, 00:05
the only true 2 into 1 exhaust system on the market for an Iron Head

?????????????????????????????????????????????????? ???????????????????????????????

http://xlforum.net/photopost/data/500/medium/Right_Done.JPG

ericfreeman
25th October 2009, 01:02
?????????????????????????????????????????????????? ???????????????????????????????

http://xlforum.net/photopost/data/500/medium/Right_Done.JPG

Ok, who sells it and how much?

ryder rick
25th October 2009, 21:32
Hear is one on eBay you might like.

http://cgi.ebay.com/ebaymotors/Harley-2into1-Exhaust-Sportster-Ironhead-muffler-pipes_W0QQitemZ120484380090QQcmdZViewItemQQptZMoto rcycles_Parts_Accessories?hash=item1c0d6dbdba

That looks like it might do for my project.

Anyone know about any fit issues around this exhaust, were any heat shields offered?

I like the bend better on the 65487-79 pipe but I would have to hack the pipe to a right side only.....

jharback
25th October 2009, 21:59
Pipe Dreamz makes one and sells it for under $400. Here's a link:

http://www.pipedreamz.biz/early.html

runingmouse
25th October 2009, 22:06
That looks like it might do for my project.

Anyone know about any fit issues around this exhaust, were any heat shields offered?

I like the bend better on the 65487-79 pipe but I would have to hack the pipe to a right side only.....

They don't come up much. Thats the first HD brand I've seen on there.
Fits 77 up XL, XLCH in the parts book.

Schutzhund
26th October 2009, 01:31
With the exception of Eric it's starting to look like very few have tried this set up. The ones sold at Pipe Dreams is the same as the ones sold at Sporty Specialties. I'm interested in the performance aspect of these pipes. In my opinion they are O.K. looking at best. Something different, but if they provide a performance boost they would be well worth the extra money. Fitting issues is an entirely different subject.

Ivan RoachCoach
26th October 2009, 18:00
...collector stacked one atop the other instead of side-by-side. They're ALSO '70s aftermarket pieces that I scored on eGay.

http://i850.photobucket.com/albums/ab61/ivancoachcoach/IRCprofileRIGHT.jpg

There is a NOTICEABLE power increase with a 2-into-1 system.

83XLX
26th October 2009, 18:13
That looks like it might do for my project.

Anyone know about any fit issues around this exhaust, were any heat shields offered?

I like the bend better on the 65487-79 pipe but I would have to hack the pipe to a right side only.....

I bought one of those for an exhaust project a number of years ago. In stock form, the muffler interfered with the rear brake master cylinder on my '83. The headers fit OK, but a longer, fabricated collector was necessary before fitting a muffler (I was going with a 2" inlet Supertrapp). I don't think there were any heat shields offered for this exhaust.

ghost_rader
27th October 2009, 02:31
i bought mine off e-bay also, not sure who makes it, but it did increase and smooth out power throughout the rpm range, but i think it might be the bend of the pipes more than the 2-1 because i have since removed the single muffler and am currently running 2-2 with turn out tips on the pipes.

here's my 2-1
http://photos-d.ak.fbcdn.net/hphotos-ak-snc1/hs265.snc1/9216_159497248534_782108534_2747973_8278208_n.jpg

and here's my 2-2
http://photos-g.ak.fbcdn.net/hphotos-ak-snc1/hs245.snc1/9216_159497298534_782108534_2747980_1255758_n.jpg

whoopeekat
27th October 2009, 03:26
bought a 2 into 1 collector from v-twin part number 30-0207, cut out the muffler section and put back together with a cheap set of drag pipes, sounds awsome!!! have about 140.00 invested. it comes with a 3" turn out

ghost_rader
27th October 2009, 03:39
bought a 2 into 1 collector from v-twin part number 30-0207, cut out the muffler section and put back together with a cheap set of drag pipes, sounds awsome!!! have about 140.00 invested. it comes with a 3" turn out

sounds interesting, do you have any pics?

whoopeekat
27th October 2009, 03:46
yea but i don't know how to post them

shotgun46
27th October 2009, 04:03
i bought mine off e-bay also, not sure who makes it, but it did increase and smooth out power throughout the rpm range, but i think it might be the bend of the pipes more than the 2-1 because i have since removed the single muffler and am currently running 2-2 with turn out tips on the pipes.

here's my 2-1
http://photos-d.ak.fbcdn.net/hphotos-ak-snc1/hs265.snc1/9216_159497248534_782108534_2747973_8278208_n.jpg

and here's my 2-2
http://photos-g.ak.fbcdn.net/hphotos-ak-snc1/hs245.snc1/9216_159497298534_782108534_2747980_1255758_n.jpg

I bet that bike souns good with them pipes on it

ghost_rader
27th October 2009, 04:12
yea but i don't know how to post them

if they are located on the internet already, then when looking at picture, right click on it and (copy img url) then when replying to thread above the message test box there is a button that looks like a postcard, click on it and right click (paste) in that box. if the pics are not on the internet yet, set yourself up with a photobucket account (http://www.photobucket.com) and load the pics from your computer to photobucket and follow the instructions above to post them.

I bet that bike souns good with them pipes on it

yes it is very nice, and surprisingly not too awful loud

Schutzhund
28th October 2009, 01:43
Ghost rade nice to see another 80 still on the road. The 2 into 2 looks nice too. You said that you think the bend has more to do with the performance than the 2 into 1 set up. Could you tell me what makes you say that.

BLIGHT
28th October 2009, 02:29
bought a 2 into 1 collector from v-twin part number 30-0207, cut out the muffler section and put back together with a cheap set of drag pipes, sounds awsome!!! have about 140.00 invested. it comes with a 3" turn out

Hi whoopeekat... I can't find the V-Twin catalog page online for that P/N. I do see a price if you enter the P/N of 30-0207 of $83.27 USD, which seems cheap, but I'd like to see a pic & description of what you're getting. Could you provide a link to the catalog page?

Thanks!
BLIGHT

ericfreeman
28th October 2009, 02:46
Hi whoopeekat... I can't find the V-Twin catalog page online for that P/N. I do see a price if you enter the P/N of 30-0207 of $83.27 USD, which seems cheap, but I'd like to see a pic & description of what you're getting. Could you provide a link to the catalog page?

Thanks!
BLIGHT

Catalog page 613 under 'Classic' heading. Looks very similer to my Jardine exhaust except instead of side-side header pipes they're over-under like Ivan's.

Eric

ghost_rader
28th October 2009, 20:20
Ghost rade nice to see another 80 still on the road. The 2 into 2 looks nice too. You said that you think the bend has more to do with the performance than the 2 into 1 set up. Could you tell me what makes you say that.

well, I think that length of pipe has has something to do with performance. alot of people on this site have said that if your gonna get drag pipes, use 40" drags. well, with my drags, i experienced a hole or dead spot in performance higher in the rpm range. I re-jetted the bike, checked for leaks on intake and exhaust, tuned and jetted it some more and still no luck. i installed a set of cycleshack tapper muffler pipes, and the hole got better, but was not gone. i tuned it again to no avail. i then installed the 2-1 exhaust, tuned the bike and the hole was gone. once i removed the muffler and installed the individual tips, the performance hole was still gone. giving me the impression that the bend of the rear pipe, or length of it, is what caused the performance hole to go away.

i could be delusional, of through all my messing around with the bike, i may have fixed the actual cause for the dead spot, but this is the conclusion i have come to.

ryder rick
28th October 2009, 21:31
I bought one of those for an exhaust project a number of years ago. In stock form, the muffler interfered with the rear brake master cylinder on my '83. The headers fit OK, but a longer, fabricated collector was necessary before fitting a muffler (I was going with a 2" inlet Supertrapp). I don't think there were any heat shields offered for this exhaust.

I missed your post before buying, Rats!
Well it sounds like it can be made to work with a different muffler.
I do have a hacked up ThunderHeader I can use for a muffler donor.

whoopeekat
29th October 2009, 01:28
page 609 of my 09 vtwin book

Schutzhund
29th October 2009, 03:20
Very interesting ghost rader. I've already heard about the 40" rule, and my pipes are 40" drags with tuned shorty baffles. So far I've been happy with them. Just interested in the potential of power increas from a 2 into 1 system. Ivan said that there is a noticable difference. I can believe that because he doesn't b.s. about that sort of thing. Eric said that with the mods to his motor they didn't help, seemed to interupt flow. So it would seem the jurys still out on this one.

ericfreeman
29th October 2009, 03:37
Eric said that with the mods to his motor they didn't help, seemed to interupt flow. So it would seem the jurys still out on this one.

I should note that my vintage 2-1 exhaust was great up to 4k RPM but beyond that it didn't let my worked-on motor pull like the 2-2's on there now. The 2-1 worked quite well on my relatively stock '77 but I removed it for additional highway peg mounting clearance (the pegs fit between the headpipe and the engine case). Could be the muffler design itself but it doesn't sound terribly restrictive, definitely not quiet like the original 2-1 HD sold on the '77 and '78 models.

I ordered one of the V-Twin collector/mufflers since they say you can rotate the outlet which will allow me to couple the muffler to my side-by-side head pipes. Will make for an interesting comparison.

Eric

83XLX
29th October 2009, 14:48
...I ordered one of the V-Twin collector/mufflers since they say you can rotate the outlet which will allow me to couple the muffler to my side-by-side head pipes. Will make for an interesting comparison.

Eric

Please post here when you get it. I'm interested in one for my old 2-1 factory headers, but only if the outlet will rotate (and if the c-c dimension between the headers is right). I'd also be interested in knowing how loud it is - hopefully it isn't a straight through collector.