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Discussion Starter #1
What would be the biggest improvement for some one who doesn't have thousands to spend, A Maximus Tune or an Under Drive Pulley ?

The costs are not that far from each other and I don't have the money to do both. At least right away. So I'm thinking about doing one in the next few months and the other in a year or two. I already am set up with a Stage 1, with Tri-ovals and Lloyds filter, O2's unplugged. I'm not sure if I have an adjustable timing wheel.
My XC is mainly used for commuting but I do a couple of longer rides a year. Bike runs good but good could always be better. Any opinions?
 

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do the Max in the long run you can get a smoother better performing motor.
 

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I assume you mean get a tune vs. the underdrive pulley. The Maximus is just a tool to re-program your ECU. If you just purchased the Maximus you'd still need to get a tune and that would be an additional expense. I'm not really up-to-date on that route but I thought there was some difference between buying a Maximus tuner and purchasing a license and then working with someone like Noe to get a remote tune. And that may be what you mean.

There would be no need for an adjustable timing wheel with a Maximus since it is really applicable to those with a Power Commander (the PCV can only adjust timing and fuel above 2500 RPM so the timing wheel is used to adjust timing below that level.)

Since you already have a Stage 1 flash, you are better off than stock. It's not as good as a custom tune but better than from the factory.

If you think you may want to do other performance enhancements such as cams I would suggest you save up for everything and do it all at once. Otherwise you'll find yourself paying for another tune each time you make changes.

The underdrive pulley has some benefit off the line but the main thing it does is improve rideability. If you feel like you can't find the right gear in slow speed turns for example, you'll appreciate the underdrive.

I guess I'd lean toward the underdrive if I were you since you already have the Stage 1 flash. But long-term I would suggest cams and a proper tune.
 

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There would be no need for an adjustable timing wheel with a Maximus since it is really applicable to those with a Power Commander (the PCV can only adjust timing and fuel above 2500 RPM so the timing wheel is used to adjust timing below that level.)
The PC-V can do fueling everywhere, you just cannot use it to change the ignition timing below 2500 rpm. The timing wheel adjusts BASE timing (that's all over, not just at a specific range of rpm).



My $.02:
It depends on what you're looking for. What do you want to change about the bike? There is nothing like a perfectly tuned bike... very important... and will improve power, drivability, and fuel economy too.

On the other hand, the 31 tooth pulley is a final drive gearing change and is beneficial in a completely different way. If you feel the bike's gearing is too tall (need to downshift all the way to 1st at intersections and 6th gear is useless below 70 mph) then the pulley will be something you'll really like.

It's only money... you get paid again next week, so it's not like you won't get any more money.

Here's a suggestion... walk into your bank and tell them you want a 'no interest for 18 months' credit card. Get what you want for the bike and as long as you pay it off in 18 months you get to use their money FOR FREE, leave your money where it is, and boost your credit score in the process. Even if you get it all,Maximus w/tune, pulley, and LSC cams too ($3K)... It would only cost you $167/month to pay it off in 18 months.

Life is far TOO LONG to suffer though it telling yourself "No"... when your heart says "Yes!". Spend a couple of years waiting... or spend a couple of years ENJOYING.
 

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The PC-V can do fueling everywhere, you just cannot use it to change the ignition timing below 2500 rpm. The timing wheel adjusts BASE timing (that's all over, not just at a specific range of rpm).
Interesting, I did not know that the PCV can change fueling below 2500. I did understand that the wheel changes base timing but did not say it as well as you. I’m curious, why can the PCV change fueling below 2500 but not timing?
 

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On a stock bike the UD pulley would be the best in my personal opinion

Andre using TaPaTaLk
 

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Interesting, I did not know that the PCV can change fueling below 2500. I did understand that the wheel changes base timing but did not say it as well as you. I’m curious, why can the PCV change fueling below 2500 but not timing?
In order to tune the bike, it has to be able to adjust fueling at idle and everywhere else.

Ignition advance/retard is a completely separate function from fuel injector pulse width. The Power Commander timing table has cells below 2500 rpm but they clearly state not to put a value there other than 0. Why? I have no idea. It is simply a limitation of the unit.
 

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On a stock bike the UD pulley would be the best in my personal opinion

Andre using TaPaTaLk
I tend to lean the other way. If my bike was stock, and I had to choose between the underdrive pulley or tuning it so it runs properly, I'll choose the tune. It'll give better power overall while the engine runs more smoothly. It's like a 2-fer :)
 

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Modifications in the order I did them:
1) Airbox/pipes/fuel controller/tune (sewing machine quiet and EPA compliant just sucks)
2) UD Pulley (Stock gearing on this bike was terrible)

In this case the bike is probably lean as hell with just a flash and the Lloydz air filter... so I would have to agree with you. Gearing on the new bikes is not so bad and a tune is very beneficial even to the point of cooler running and the basis for enjoyment of the machine.

Priorities considered, if the cost of a $350 pulley was a deal-breaker, I wouldn't buy a motorcycle... bear with me...

Right now, my truck needs rear tires (the torque of the diesel kills rear tires quick and my right foot doesn't help). I'm getting them tomorrow. $490 for 2 tires (they're big E-rated tires). We're going camping on July 4th week for 4 days and it can't wait... this is my tow vehicle... I have no choice.

P's Jeep needs an oil change, spark plugs, and an air filter within the next couple of weeks. It's her daily driver... I have no choice.

The bike needs a rear tire soon and an oil change... If I plan to ride it, these things need to be done, but being that the bike is more of a toy and the toy is not the highest priority in the budget, I have the option to wait...

Maintenance costs on a motorcycle are high... oil changes, tires, brake pads, wheel bearings, drive belts, fork oil, steering head... if the bike needs tires am I going to park it for a year to save up $350 for new tires? Hence, if a $350 pulley was out of reach, maybe it's just not my turn yet to get a toy. There's no shame in having a budget and needing to prioritize.

This is what I get the most **** from my wife over. According to her, the whole world can fall down around me and I will not fix anything... but my bike gets whatever it needs to be PERFECT and ready to roll!
 

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I feel like the Maximus is the way to go, basically with your current stage one setup you could have the tune done and rip down the road. Then down the road when you want cams etc., you can have it tuned again. JMO!
 

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What I'm doing

HC and VJ are the guys here. I'm going with Maximus on both my bikes to get the most capability out of the stock ( well I have stage one Xbows on the Highball but not much more than stock) engines ...for now. I've not thought much about underdrive but would think that (as noted) would depend on hole shots and shift points more than "performance" (arguably a good hole shot could be considered "performance" but.....). At any rate I'm going with a maximus tune. Hope that helps.

LMYR
 

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I feel like the Maximus is the way to go, basically with your current stage one setup you could have the tune done and rip down the road. Then down the road when you want cams etc., you can have it tuned again. JMO!
Another downside of not doing it all at once... you could end up paying for a tune 2 or 3 times... In the long run, it's cheaper to go 'one and done' with mods. That's why I made the suggestion I did in post #4.

Don't be like me... 4 exhaust systems, 2 airboxes, 2 fuel controllers, 2 big bore kits, a stroker kit, 5 dyno tunes... Decide what you want, do it, ride happy and save a ****-ton of money. If you think it's expensive doing it once, BELIEVE ME it's cheaper than doing it twice.
 

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HC and VJ are the guys here. I'm going with Maximus on both my bikes to get the most capability out of the stock ( well I have stage one Xbows on the Highball but not much more than stock) engines ...for now. I've not thought much about underdrive but would think that (as noted) would depend on hole shots and shift points more than "performance" (arguably a good hole shot could be considered "performance" but.....). At any rate I'm going with a maximus tune. Hope that helps.

LMYR
Engines are air pumps. The more air it can pump, the more power it will make (if you add the proper amount of fuel to the extra air). So... the biggest power gain will come from letting it BREATHE. The Victory 'high flow' air filter does NOTHING except give you a washable/reusable air filter. Luckily, the most performance gain is also the cheapest on a Vision, since a real HIGH FLOW air filter system is inexpensive... and you're tuning it anyway.
 

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...The Victory 'high flow' air filter does NOTHING except give you a washable/reusable air filter...
Yeah which is why the "performance" tune is nearly identical to the stock tune air map. A few minor timing changes. It's really not even trying.
 

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[QUOTE

On the other hand, the 31 tooth pulley is a final drive gearing change and is beneficial in a completely different way. If you feel the bike's gearing is too tall (need to downshift all the way to 1st at intersections and 6th gear is useless below 70 mph) then the pulley will be something you'll really like.

It's only money... you get paid again next week, so it's not like you won't get any more money.

Here's a suggestion... walk into your bank and tell them you want a 'no interest for 18 months' credit card. Get what you want for the bike and as long as you pay it off in 18 months you get to use their money FOR FREE, leave your money where it is, and boost your credit score in the process. Even if you get it all,Maximus w/tune, pulley, and LSC cams too ($3K)... It would only cost you $167/month to pay it off in 18 months.

Life is far TOO LONG to suffer though it telling yourself "No"... when your heart says "Yes!". Spend a couple of years waiting... or spend a couple of years ENJOYING.[/QUOTE]

Your right about the loan. 12 years ago or more I used the no interest credit cards to pay my mortgage down, when the term ended I would just apply for another card. Back then there was no transfer fees either. I actually had one card I already had offer 0 interest for the life of the loan, Put 10 grand on it. That and throwing xtra money against it paid the mortgage off pretty quick.
I was on the fence about getting a fuel controller for my bike. Was looking at getting a used Lloydz gen 3 for 150 on Ebay when I saw a new Dobeck Afr tuner $75 more, jumped on it.
 

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Another downside of not doing it all at once... you could end up paying for a tune 2 or 3 times... In the long run, it's cheaper to go 'one and done' with mods. That's why I made the suggestion I did in post #4.

Don't be like me... 4 exhaust systems, 2 airboxes, 2 fuel controllers, 2 big bore kits, a stroker kit, 5 dyno tunes... Decide what you want, do it, ride happy and save a ****-ton of money. If you think it's expensive doing it once, BELIEVE ME it's cheaper than doing it twice.
I totally agree with you about doing it all at once. However, some fellas don't have the scratch to pull it all off at once and I can understand anyone not wanting to incur debt to do so. If I were in the situation I would wait until I had the cash to do it all.
 

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Discussion Starter #18
Ok Here is some information I didn't have when I started this thread. I originally thought the cost between doing the Maximus Tune or the UD Pulley was with-in about $50 of each other, hence my title of Biggest Bang for the Buck.

What I now have found out is the Maximus tune with a license module is really more than double the cost of the Under Drive Pulley. (I'm seeing the UD pulley at around $330)
So now it's not any more a "I can do one or the other but not both" It would be different if I already had the Maximus Module because then it would be just $400 for the Remote Tune.

For those that recommended Cams I'm not really looking to go that way. Like I mentioned the bike is mainly used as a Commuter (about 7000 miles a year) with the occasional long trip thrown in. This along with the costs has me leaning towards the better gearing.
 

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A bone stock bike, and, UD pulley would be a wonderful ride
..

Andre using TaPaTaLk
 

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