Honda VTX Forum banner

1 - 16 of 16 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter #1
Howdy, everyone.
First post and a VTX Newbie so bear with me.

I bought a 2004 1800N a few days ago. It has the stock pipes on it but came with a set of V&H Bigshots which the original owner said worked fine without a Fuelpak, PC, or any such thing. Now, all my previous bikes have been carburated and I'm not really familiar with the FI system on the new bike. This being the case I have two questions:

1. Does putting the V&H pipes on automatically require a Fuelpak or similar? In other words, should I try the bike without one and see how it runs or simply get one and put it on?

2. How hard are the pipes to install? Is it a three hand task or can one person do it?

Thanks in advance!
 

·
Registered
Joined
·
241 Posts
if you have any mech abiltity the pipes are gonna be pretty simple to install . Now you other question is a loaded one , there are guys on both sides of the fence . I had mine for 2 years before I but a Cobra f.i pack on mine . It ran good without it , but it even runs better with it . My 2 cents , put them on you will love the pipes , if you ever come across a great deal on a F.I comp. then add it . :tools:
 

·
Registered
Joined
·
1,302 Posts
Welcome to the madness.

I put on Cobra's and they were pretty simple. Never tried V&H's. There were some alignment issues, but patience prevailed..
I have not upgraded the fuel management system. Runs just as good as it did with the stock pipe on. Now I've read on here many times that a fuel management system does make it run better, but so far I'm happy with what I have :thumbup:
 

·
Super Moderator
Joined
·
64,002 Posts
Is a fuel manager needed?
Are they needed? The short answer is, No. They are not needed, but you might want to add one to get the best possible performance and fuel mileage out of the additions. Most members run without a fuel manager while having aftermarket air intakes and exhaust and have no problems at all. The following is from the “Sticky” thread called,“Air,Fuel,Motor,Missives…” and the first post by Tapper. The entire post is filled with great information on the VTX engine.


Originally Posted by Tapper


After Market Fuel Computers

This is a good time to talk about aftermarket fuel controllers, so lets hit on what they do real quick. The 1300 guys can manipulate their A/F ratios by changing jets, but it’s a bit more complex (and expensive) for the 1800 riders. For the VTX, there are basically three types of controller available. All three do exactly the same thing – they manipulate the amount of time the injectors are turned on during the intake stroke, by intercepting the voltage the ECU sends to the injectors. How the decide how much longer or shorter to turn the injector on, varies a bit though, and that variety is important thing to know when selecting which controller to use on your bike (if in fact you choose to use on at all – none of them are ever really necessary, regardless of what pipes or airboxes you add on to the bike.)


It’s also important to understand this: None of these controllers is ever a necessity, regardless of whether you change pipes or airboxes on your bike. The stock ECU will, in almost every case, adjust to the changes in airflow you’ve caused, and give you a reasonably good A/F ratio.
But you should understand, that the ECU is not programmed to give you an A/F ratio that is optimized for horsepower from the factory – instead, Honda worries about things like pollution, engine temperature, and rider perception, and so the ECU can be said to be “de-tuned” in order to address these other concerns. So the real function of these add-on controllers is to correct the error (or eliminate the de-tuning) that Honda induced in your fuel curve on purpose, in order to reclaim the lost horsepower and improve engine efficiency (possibly at the cost of making more pollution, hearing more deceleration backfiring, etc). Adding on aftermarket pipes or airboxes can sometimes exaggerate this de-tuning as well, so we need to be able to modify our fuel curves to match the configuration of our bikes. Got that? These boxes aren’t necessary, but if you’re hunting more horses, they can sure find them.


 

·
Super Moderator
Joined
·
64,002 Posts
Welcome to the board!
Bookmark or save to your favorites folder, these websites, http://www.vtxoa.com/forums/forumdisplay.php?f=77
This is the NEW VTXOA Garage, a sister site to this message board and contains all your How-to/Tips/Tricks/Why’s and links to other helpful sites for your new VTX. http://www.bareasschoppers.com/ A fellow VTX Riders site that has many write-ups on “How-To” do work on the VTX. Also, for you 1300 guys http://vtx1300tips.com/VTX1300TIPS.htm another fellow VTX Riders site.
There is also a helpful Search icon in the users Toolbar just under the VTXOwners Association banner
Click the “Search” drop down and select “Advanced Search”
Now, enter your keywords and select a single forum to search in
Select 1, and only 1 "Forum" to search in at a time, or at all.
For example, "Best airbox" I would only search in the "1800 Tech Board"
That's the basic way, you can limit further by using some of the other "Drop-Down" menu's like if you know the thread you are looking for is only a week or so old, etc....
The purpose of the "Search" is to offer a member the opportunity to research his/her question better. There is so much information from past threads that you may never see because that member is no longer here, or doesn't see your new post, or just won't respond to the same question. So use it to your advantage and enjoy the board! View this funny and informative film about posting and searching…
How To Use This Forum, Click Here
Take a few minutes to familiarize yourself with the forum. At the top of every board there are threads that are tagged as "Sticky" These threads are "Sticky" because they contain very important/valuable information about the VTX and everyone should read them.
The thread at the top of the 1800 tech board called, "Air, Fuel, Motors..." will answer most of the performance questions...
http://www.vtxoa.com/forums/showthread.php?t=21749
Also, update your Profile to include where you live and what type X you have to your Signature line. I.E. 1300/1800/C/F/N/R/S/T
 

·
Registered
Joined
·
5 Posts
Discussion Starter #8
Thanks for the tips, everyone. I'm going to try and put them on tonight. I'll let you know how it works out, hopefully, in the morning.
 

·
Registered
Joined
·
6,267 Posts
Welcome to the board where your questions will be answered:grin:
 

·
Registered
Joined
·
5 Posts
Discussion Starter #10
OK, pipes are on. Enlisted my 16 year old for help but other than that it seemed fairly straight forward. The only real issue was getting the flange nuts which go on the exhaust port studs tightened. The heat shield on the new pipes really gets in the way and makes it hard to find the correct tool to allow a socket to squarely fit over the nut. Does anyone have any advise on this for future reference?

Anyhow, I do believe I was able to manage it and the pipes sound pretty good. The bike ran fine in the short time I had to ride it last evening. Thanks again for all the tips.
 

·
Registered
Joined
·
53 Posts
Flexibility

I have found the only thing that worked really well to remove or tighten those nuts on the exhaust ports is a flexible extension. I think they were less than $20. You get two - 1/4 and 3/8 - found them on Amazon.

David Welch
 

·
Registered
Joined
·
12,473 Posts
If the pipes are on and the bike runs fine to your satisfaction, then add nothing.

If you feel the need to squeeze more power out, then adding a fuel manager may be in order. Keep in mind that adding a fuel manage does not come without some costs and added risk.

Costs:
1) Purchase price
2) More power = lower fuel economy ( in most cases )

Risk:
1) You are introducing more electronics on to the bike and increasing the potential for future problems.

Often times I have read posts where people were having a problem with their 1800's and the solution was removing the fuel manager. Did the fuel manager fail? Did they have it set improperly? I couldn't tell you, but when I moved from the 1300 to the 1800 I had read enough to where I knew a fuel manager was not gonna go on my bike.

For the 1800 I even went a step farther and made the decision to keep the intake and exhaust stock, but that's just me.

The way it came to me, and I bought it brand new, it had all the power I needed. If it didn't I would not have bought it!
 

·
Registered
Joined
·
5 Posts
Discussion Starter #15
If the pipes are on and the bike runs fine to your satisfaction, then add nothing.

If you feel the need to squeeze more power out, then adding a fuel manager may be in order. Keep in mind that adding a fuel manage does not come without some costs and added risk.

Costs:
1) Purchase price
2) More power = lower fuel economy ( in most cases )

Risk:
1) You are introducing more electronics on to the bike and increasing the potential for future problems.

Often times I have read posts where people were having a problem with their 1800's and the solution was removing the fuel manager. Did the fuel manager fail? Did they have it set improperly? I couldn't tell you, but when I moved from the 1300 to the 1800 I had read enough to where I knew a fuel manager was not gonna go on my bike.

For the 1800 I even went a step farther and made the decision to keep the intake and exhaust stock, but that's just me.

The way it came to me, and I bought it brand new, it had all the power I needed. If it didn't I would not have bought it!
Well, so far so good as far as running goes. I checked for exhaust leaks and couldn't find any, replaced the stock air filter with a K&N drop in, and have been enjoying it since I changed the pipes. It might have added a few HP, I'm really not sure, but I put the pipes on for better sound more than increased power. This seems to have been achieved remarkably well, the bike sounds nice and up to this point runs fine. Time will tell of course, but since I will never be racing the thing I'm not inclined to add the fuel manager unless problems develop.
 

·
Registered
Joined
·
1,335 Posts
:popcorn: Welcome from PA!
 
1 - 16 of 16 Posts
Top