WTB Muzzys 4-2-1 system

[CAJW]

WTB Muzzys 4-2-1 complete system. Don't believe Gen I & II are any different, but for the record, I have a Gen I. I've seen the one listed on Ebay, looking for hopefully a take off someone didn't end up liking at a more "reasonable" cost. At this point, Carbon, Alum or Ti are all in the running. Thanks for any leads.

 

[FJRay]

WTB Muzzys 4-2-1 complete system. Don't believe Gen I & II are any different, but for the record, I have a Gen I. I've seen the one listed on Ebay, looking for hopefully a take off someone didn't end up liking at a more "reasonable" cost. At this point, Carbon, Alum or Ti are all in the running. Thanks for any leads.

My neighbor is a welder for Muzzys. I will ask him if there is anything sitting around the warehouse.

 

[CAJW]

Thanks much Ray. I owe you a Rueben, Reuben Roobin, oh hell a sammich!

 

[exskibum]

Muzzy fever!!! We'll terrorize the Sierras wit two of them!

 

[CAJW]

Bump

 

[CAJW]

BTT

 

[CAJW]

Shameless bump

 

[CAJW]

Pleading bump

 

[vtwinn]

Would you be interested in a near mint pair of Muzzy slipons?

 

[fossilrider]

WTB Muzzys 4-2-1 complete system. Don't believe Gen I & II are any different, but for the record, I have a Gen I. I've seen the one listed on Ebay, looking for hopefully a take off someone didn't end up liking at a more "reasonable" cost. At this point, Carbon, Alum or Ti are all in the running. Thanks for any leads.

Rediculous price but this fellow has 3 units. When I purchased mine it was about $600+ shipped to Canada.

Muzzy

 

[Bustanut joker]

aside form having to deal with only one side being ground down, why would you want this..

IIRC Rob Muzzy stated in Cycle World a few issues back that, a 4 into 2 into 1 setup is actually detrimental for engines like ours.

Just curious.

 

[Chuck35]

aside form having to deal with only one side being ground down, why would you want this..

IIRC Rob Muzzy stated in Cycle World a few issues back that, a 4 into 2 into 1 setup is actually detrimental for engines like ours.

Just curious.

Did he recommend 4 2 2 or 4 1 2 ?

I am curious as I have a decatted header (no tubes in collector) and a pair of holeshots. This 4 1 2 setup sounds very sweet and not at all offensively loud. It runs good too

 

[CAJW]

Would you be interested in a near mint pair of Muzzy slipons?

Thanks for the offer, but I'm only looking for the complete header and single muffler setup

WTB Muzzys 4-2-1 complete system. Don't believe Gen I & II are any different, but for the record, I have a Gen I. I've seen the one listed on Ebay, looking for hopefully a take off someone didn't end up liking at a more "reasonable" cost. At this point, Carbon, Alum or Ti are all in the running. Thanks for any leads.

Rediculous price but this fellow has 3 units. When I purchased mine it was about $600+ shipped to Canada.

Muzzy

Thanks. I'd investigated that and besides the outrageous price, it's carbon which hasn't had the best reviews for longevity and if I'm going to pony up big bucks, I want it to last.

aside form having to deal with only one side being ground down, why would you want this..

IIRC Rob Muzzy stated in Cycle World a few issues back that, a 4 into 2 into 1 setup is actually detrimental for engines like ours.

Just curious.

Cause' it sounds Bitchin! Some don't care for the single exhaust look on the FJR, but personally I think it's unique. Regarding detrimental to our engines, I tried to keep up with Exskibum departing the RTE at Ray's and it wasn't even close. Might be some issues with it, but I hadn't seen anything. If you find that article, shoot it my way, might save me some money and grief, but for now I'm still on the hunt.

 

[exskibum]

Regarding detrimental to our engines, I tried to keep up with Exskibum departing the RTE at Ray's and it wasn't even close. Might be some issues with it, but I hadn't seen anything. If you find that article, shoot it my way, might save me some money and grief, but for now I'm still on the hunt.

I'd be interested in the article, or at least the passages addressing some kind of detriment. No question that it loses weight and adds top end performance. But I've seen nothing in the 5+ years I've had it on the bike that indicates any harm or detriment once I got the pipe scraping problem addressed with the correct suspension set-up. A couple wild guesses what he MIGHT be driving at, though:

FJRay has noted that the FJR engine does not have a lot of valve overlap compared to many of the higher performance I-4 motorcycle engines out there. (Of course it has some overlap to move enough fuel mixture in and move exhaust gasses out of the cylinder because cam lobes don't do digital type switching from full open to full closed.) What I think that means is that the effect of the header creating a timed negative pressure wave (suction) up each of the four pipes (to take advantage of overlap) would be less profound on the FJR than with an engine with more overlap. That means that the header would suck less additional mixture into the cylinder on the intake stroke than might happen in an engine with more overlap. IOW, the header would result in a lesser increase in HP on the FJR than in a more highly tuned engine with more overlap.

More likely, Muzzy might have been referring to the place in the power band where a 4-2-1 header makes power, where it doesn't, and how that is or isn't suited to a sport-TOURING bike. While not as badly as a true 4-1, a 4-2-1 pipe tends to flatten the torque curve in the mid range in exchange for more power at higher revs. (Everything is a compromise, but I don't notice a real lacking in the mid-range and prefer the power band I have with the 4-2-1 over the OEM set-up.) That the FJR is designed more as a torquey I-4 is reflected in the fact that it's got 5 gears, and not a closer ratio 6 speed tranny. It's what the bike does well for an I-4, especially when 2 up and loaded for touring. But to me, this isn't an issue if you ride it with the 4-2-1 power band in mind (which becomes automatic pretty quickly.) If I'm going to launch a hard pass, I kick it down a gear to get into that range where it's making more power and enjoy the F1 like exhaust scream with the kick in the butt. I do know I can eat tires and probably lose a couple mpg, but who knows what else may suffer -- more wear and tear from using the higher range HP hasn't seemed to manifest itself yet.

I'd love to read what he said.

 

[Bustanut joker]

Crap.. I misspoke here. After re- reading the aforementioned blurb it was a comparison to a four into four vs four into two into one.

Rich hit it right on the head.. It's not so much a detriment but a changing of the torque curve.

As penance I'm going to neglect shaving my anus for a month. I'll post pictures.

 

[CAJW]

Crap.. I misspoke here. After re- reading the aforementioned blurb it was a comparison to a four into four vs four into two into one.

Rich hit it right on the head.. It's not so much a detriment but a changing of the torque curve.

As penance I'm going to neglect shaving my anus for a month. I'll post pictures.

Don't need to go that far. A sheepish grin will suffice.

Besides. Photobucket has standards....

 

[exskibum]

Crap.. I misspoke here. After re- reading the aforementioned blurb it was a comparison to a four into four vs four into two into one.

Rich hit it right on the head.. It's not so much a detriment but a changing of the torque curve.

As penance I'm going to neglect shaving my anus for a month. I'll post pictures.

Don't need to go that far. A sheepish grin will suffice.

Besides. Photobucket has standards....

Exactly, John.

I had a true 4-1 pipe on my '75 Kawasaki Z-1 (a Kerker, if anyone remembers them). It had a noticeable lag in the mid range after putting the pipe on it, but damn, that tach would climb in a hurry up around red line. That's what I meant about compromise -- a true 4-1 will make more peak HP than a 4-2-1, but the resulting torque curve pretty much makes it useful only in racing applications where you're living in the highest RPM ranges.

I don't recall ever hitting a rev limiter on that bike (IF it had one), but do recall having to be careful approaching red line with that header. I accidentally passed red line a handful of times, but fortunately, never grenaded the engine. Not sure I warned the guy I sold it to about that, so who knows whatever happened to it.

 

[Chuck35]

Crap.. I misspoke here. After re- reading the aforementioned blurb it was a comparison to a four into four vs four into two into one.

Rich hit it right on the head.. It's not so much a detriment but a changing of the torque curve.

As penance I'm going to neglect shaving my anus for a month. I'll post pictures.

Don't need to go that far. A sheepish grin will suffice.

Besides. Photobucket has standards....

To Late!

That avatar resembles an unshaved anus