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post #11 of 20 (permalink) Old 09-18-2017, 10:50 AM
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Whoa back there just a minute, ladies!

I had to go way back to a post from September 2002 for this info. So, I fitted DG Hardkrome 3" drag pipes, and a hypercharger to a home made sheet steel airbox and had my 2001 Volusia on the dyno to get it all dialled in.

So the stock bike made 42hp, not sure about the torque.

The bottom line, from the men who built the 422hp, 1600cc turbocharged and nitrous injected Hayabusa and dyno'd my Volusia:

Quote:
"That's offensively loud, isn't it?

We went for a 140 main, then 150, 160, 170, 180, 200 and then we started to drill out the 200. We run 250 mains on the turbo bikes. This thing is insane.
We have the needle on the last notch, with a bunch of washers under it. At full throttle, it's throwing a foot of flame out the back, and the baffles glow orange."
Peak power at the rear wheel is 50bhp, estimated 70bhp at the crank. Max torque is 59.87 ft.lbs at 3420 rpm.

The hypercharger was a ***** to sort out. It needed the float bowl pressurizing as the hypercharger flows so much air that the pressure in carb body rises above atmospheric, and that stalls the fuel flow through the main jet! FWIW, you a need to drill and tap inside the body of the Hypercharger, and fit a hose barb to bleed high pressure air from between the air filter and the butterflies at the front. This air is then taken through a hose to the carb vent (that normally vents fuel vapour from the float bowl). This equalises the pressure either side of the main jet and allows it to flow fuel correctly. Other than that, it's on a 200+ main jet, and runs sweet as.

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post #12 of 20 (permalink) Old 09-18-2017, 02:57 PM
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Well, it really is a bike designed to be enjoyed as a cruiser... although I have made some 4-500 mile trips on mine, it was a 3rd bike in my garage that fit the bill for cruising around town. those 4-500 miles didn't go quickly; normally a 400 mile trip for me is an 8 hour job at the far outside.

My guidance all came from Suzuki. Their people were straightforward, I once asked someone very in the know before I bought my VOl about performance at/around 80. I was given a very straight answer "we didn't make the bike to 80."

The DJ drive makes it less buzzy on the freeway... but it doesn't make it faster. I have (unwisely) had the bike at a touch over 100 and it is not a stable platform at that speed.

My bike, after I modded it (all of the above plus noology hot spark plug wires) was great fun to ride... but really, at speeds above 70, it wasn't fun to ride at all. Doing the mods was fun and around town the thing would almost hop off the pavement. Which was OK for me, because I bought it to ride off the freeway; I have a very fast quiet bike for riding on long trips/freeway.


"Faster, Faster.... Until the thrill of speed overwhelms the fear of death"

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post #13 of 20 (permalink) Old 09-18-2017, 03:04 PM
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Quote:
Originally Posted by Wiggo View Post
Whoa back there just a minute, ladies!

I had to go way back to a post from September 2002 for this info. So, I fitted DG Hardkrome 3" drag pipes, and a hypercharger to a home made sheet steel airbox and had my 2001 Volusia on the dyno to get it all dialled in.

So the stock bike made 42hp, not sure about the torque.

The bottom line, from the men who built the 422hp, 1600cc turbocharged and nitrous injected Hayabusa and dyno'd my Volusia:



Peak power at the rear wheel is 50bhp, estimated 70bhp at the crank. Max torque is 59.87 ft.lbs at 3420 rpm.

The hypercharger was a ***** to sort out. It needed the float bowl pressurizing as the hypercharger flows so much air that the pressure in carb body rises above atmospheric, and that stalls the fuel flow through the main jet! FWIW, you a need to drill and tap inside the body of the Hypercharger, and fit a hose barb to bleed high pressure air from between the air filter and the butterflies at the front. This air is then taken through a hose to the carb vent (that normally vents fuel vapour from the float bowl). This equalises the pressure either side of the main jet and allows it to flow fuel correctly. Other than that, it's on a 200+ main jet, and runs sweet as.
Wow, mine wasn't that loud at all and I got about 52 out of it (depending on who's dyno I was on (I used the free pass I got with the dyno jet kit. That was easier, I think because I smiply got rid of the intake altogether and put a straight filter on.

Still, did that essentially change the bike? No, Not really. I like the Vol/C50. It's just not a fast bike. I like tinkering with it


"Faster, Faster.... Until the thrill of speed overwhelms the fear of death"

I'm a mystery, get it, mystery... hey, a lot of people think that's funny

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post #14 of 20 (permalink) Old 09-18-2017, 03:07 PM
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here is how to do the unifilter. this will get rid of the air box altogether and get you right to the source for air.

https://www.volusiariders.com/70-jets...ni-filter.html

also, the older posts in these threads will get you to where you want to go. Still, when you are done the bike won't be that fast... unless you put SledHeds Nitro system on.


"Faster, Faster.... Until the thrill of speed overwhelms the fear of death"

I'm a mystery, get it, mystery... hey, a lot of people think that's funny

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post #15 of 20 (permalink) Old 09-18-2017, 03:14 PM
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Here's the re-jet guidance.

https://www.volusiariders.com/70-jets...t-rejet-2.html

I would say do a uni filter, re-jet, use the aftermarket pipes (be careful though, they have to be well baffled or you won't get HP increases because of lack of backpressure, port and polish the intakes and exhausts and get noology spark plug wires.

I bet you can put 50hp to the back wheel. Unfortunately, that makes the bike more fun but doesn't give you anything increased for a top end.


"Faster, Faster.... Until the thrill of speed overwhelms the fear of death"

I'm a mystery, get it, mystery... hey, a lot of people think that's funny

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post #16 of 20 (permalink) Old 09-18-2017, 04:06 PM
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Quote:
Originally Posted by Mr. Efficiency View Post
Here's the re-jet guidance.

https://www.volusiariders.com/70-jets...t-rejet-2.html

I would say do a uni filter, re-jet, use the aftermarket pipes (be careful though, they have to be well baffled or you won't get HP increases because of lack of backpressure, port and polish the intakes and exhausts and get noology spark plug wires.

I bet you can put 50hp to the back wheel. Unfortunately, that makes the bike more fun but doesn't give you anything increased for a top end.
Quite right! The final drive determines the ultimate speed but rider discomfort kicks in way below that speed. Mods like these are for a bit more get up and go off the lights and bragging rights, for the most part, though more torque does make the bike more rideable.

Before you ask, it's just a thumbnail...

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post #17 of 20 (permalink) Old 09-18-2017, 04:18 PM
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The mods definitely make it more rideable. The throttle is more crisp and responsive but it really didn't accelerate any faster. It just was a whole lot louder and used more gas than before.

Current Bikes -->
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Past Bikes ----->

-1973 Yamaha RD350
-1991 Harley Sportster 883 XL
-2000 Yamaha XV125
-2003 Piaggio Fly
-2004 Suzuki LS650 - 04-2005 to 07-2008
-2005 Boulevard C50 - 07-2008 to 5-2012
-2012 Vulcan 900 - 05-2012 to 05-2015
-2008 Yamaha FZ6 - 11-2008 to 04-2017
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post #18 of 20 (permalink) Old 09-18-2017, 09:34 PM Thread Starter
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That's why the modded rear end... to get a smoother interstate speed out of the engine.

The other mods were to perk up the performance to get some more get up and go, partially from the taller final drive. So that acceleration would be close to the same but smoother higher speeds.

I'm looking for 6th gear at 55 cause if the rpm already feeling wrapped to high.

That's all.... but it's becoming a headache at this point. And I don't want to get to the point of porting and polishing intakes and exhaust. So put it up for sale.... gonna try to find a vs1400, c90, s83, or the like. I love the actual ride of the bike. I just need more legs and nuts to keep up with the group of old vets I ride with.

So if anyone is interested it's over in the bikes for sale section.
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post #19 of 20 (permalink) Old 09-18-2017, 10:50 PM
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The modified final drive only lowers the engine by about 400 rpm at a given speed, over the stock drive. It helps, but does not eliminate the buzzy, frantic spinning that the 800 is known for. When I did the swap on mine, it was better, but still not perfect. The downside was it robbed the engine of already limited power and caused me to have to use a lot more clutch when I was starting and I spent a lot of time in 4th gear through the mountains, because it could not maintain speed at any grade, 2 up. The pipes, processor and intake helped to restore some of the lost power, but it was still not enough to make it comfortable on the freeway.

I was always playing catch-up whenever I rode with the bigger bikes. They would twist the throttle and go, while I would twist the throttle, have a polite conversation with the intake, request acceleration, eventually was granted a moderate sum and MIGHT see the group disappear over the next rise....

Current Bikes -->
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Past Bikes ----->

-1973 Yamaha RD350
-1991 Harley Sportster 883 XL
-2000 Yamaha XV125
-2003 Piaggio Fly
-2004 Suzuki LS650 - 04-2005 to 07-2008
-2005 Boulevard C50 - 07-2008 to 5-2012
-2012 Vulcan 900 - 05-2012 to 05-2015
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post #20 of 20 (permalink) Old 09-19-2017, 09:42 AM
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Quote:
Originally Posted by Nytar View Post
That's why the modded rear end... to get a smoother interstate speed out of the engine.

The other mods were to perk up the performance to get some more get up and go, partially from the taller final drive. So that acceleration would be close to the same but smoother higher speeds.

I'm looking for 6th gear at 55 cause if the rpm already feeling wrapped to high.

That's all.... but it's becoming a headache at this point. And I don't want to get to the point of porting and polishing intakes and exhaust. So put it up for sale.... gonna try to find a vs1400, c90, s83, or the like. I love the actual ride of the bike. I just need more legs and nuts to keep up with the group of old vets I ride with.

So if anyone is interested it's over in the bikes for sale section.
A good call, as we said before, you can do a lot to the bike but it just won't make it faster. My local Craigslist has a nice vs1400 for 2000 bucks! That's less than a DJ drive, the above mods and two weeks of cursing in your garage, for sure.


"Faster, Faster.... Until the thrill of speed overwhelms the fear of death"

I'm a mystery, get it, mystery... hey, a lot of people think that's funny

Harley Davidson Flathead "World's Fastest Harley"
BMW R1200GS... The Bavarian Marriage Wrecker.
2012 Ural Tourist 2WD "Natasha".
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