Modification Information Required Please.

[Motorhead]

Hi All..

If all goes to plan I hope to order a 2010 Street Bob in the next 4 weeks.

I would like to satisfy myself that I have a reasonable knowledge before I approach a dealer, as then, I could identify whether I was being mis informed or mis sold a product..

I wish to order this bike together with the mods so its delivered with the mods completed.

I want Vance and Hines staggered short shots and a perfomance air filter.

Now my questions are.

1. Reccommendations of an air filter..

2. As these mods would be installed on order of the bike, I take it they`ll remap the ECU to take into account the mods, now, should that be the end of it ?.....or is there still a need for a Fuelpak / Power Commander even after a remap ?

Any other technical advice in relation to these mods or any other mods that should be done to get the best out of mods I`ve outlined would be greatly appreciated.

Thanks in advance.

Regards..

[grbrown]

You are likely to be limited in choice to some degree by what your dealer routinely stocks. Also bear in mind you may want them to honour your warranty! Your dealer is H-D born again in the UK. If you ask them to do something they are not prepared to stand behind, you know you are asking the wrong question! If you modify your brand new bike in some way they don't recommend, you may find yourself out on a limb.

However you are not asking for anything very difficult, so I suggest you see what they recommend for hardware and if they consider it needs any retuning.

You will find we can spend your money more easily than you, given the chance! Let us know how you get on.

[Roy]

Graham has given some great advise.

In terms of your recommendation for an airfilter, if the question comes from a performance angle - it may be worth running your question past someone like Matt's machine shop who also might be able to advise on tuning necessities and maybe give you a roadmap up to stage 1/stage 2 etc.

However, if your after advise based on aesthetics (worth riding the 1584 for a while, as they go pretty well out of the box) , my personal choice is always an S&S teardrop air filter. Harleys and teardrops, to me, go together like bread and butter

I run one on my streetbob, together with big shots. Happy to send you pictures if you PM me your email address.

My closing comment is that I would ask for all the standard parts back. If you come to sell your bike (which is what I am trying to do) people do ask for those bits as part of the sale.

Cheers, Roy

[grbrown]

Originally Posted by Roy

However, if your after advise based on aesthetics (worth riding the 1584 for a while, as they go pretty well out of the box) , my personal choice is always an S&S teardrop air filter. Harleys and teardrops, to me, go together like bread and butter

Cheers, Roy

I just happen to have one too - on my S&S 107....

[DeuceBG]

Originally Posted by Motorhead

Hi All..

If all goes to plan I hope to order a 2010 Street Bob in the next 4 weeks.

I would like to satisfy myself that I have a reasonable knowledge before I approach a dealer, as then, I could identify whether I was being mis informed or mis sold a product..

I wish to order this bike together with the mods so its delivered with the mods completed.

I want Vance and Hines staggered short shots and a perfomance air filter.

Now my questions are.

1. Reccommendations of an air filter..

2. As these mods would be installed on order of the bike, I take it they`ll remap the ECU to take into account the mods, now, should that be the end of it ?.....or is there still a need for a Fuelpak / Power Commander even after a remap ?

Any other technical advice in relation to these mods or any other mods that should be done to get the best out of mods I`ve outlined would be greatly appreciated.

Thanks in advance.

Regards..

I have Short Shots, SE Heavy Breather and HD Fueler on my 09 Fatbob.....Works 4 me!!

Deuce

[MadMax]

A good thing to take into account in your position is that you may well want to go further with your performance mods in the future. Rather than having to go back to be raped at the dealer for a remap every time you change anything, you'd be better to go with the Power Commander from the beginning. This would allow you to change your pipes, cams, compression or whatever you like and get the bike tuned properly on a dyno each time. I don't know how it works if you change from stock to parts made by other manufacturers then ask the dealer to remap? SE performance parts are not always the best. If you look at dyno figures you'll also see a great big reduction whenever V & H short shots are fitted. The SE air filters are ok, Zippers or the Ness Big Sucker are better.

[Motorhead]

Originally Posted by MadMax

A good thing to take into account in your position is that you may well want to go further with your performance mods in the future. Rather than having to go back to be raped at the dealer for a remap every time you change anything, you'd be better to go with the Power Commander from the beginning. This would allow you to change your pipes, cams, compression or whatever you like and get the bike tuned properly on a dyno each time. I don't know how it works if you change from stock to parts made by other manufacturers then ask the dealer to remap? SE performance parts are not always the best. If you look at dyno figures you'll also see a great big reduction whenever V & H short shots are fitted. The SE air filters are ok, Zippers or the Ness Big Sucker are better.

Thanks for all the input..

That`s an interesting statement regarding power losses whenever short shots are fitted.

Are these power losses frequent and do they occur when short shots have been added without a ECU remap or is this still occuring when the ECU has been tuned to take the mods ?

If this is an recuring problem even with a remap, which exhausts have been proven not to give a power reduction ?

Thanks again..

[MadMax]

The short shots look nice but they do nothing for performance. They're not a stepped header, they're parallel hence very restrictive. A 2 into 1 will nearly always outperform a 2 into 2 sytem due to the scavenging effect one exhaust pulse has on the other. The V & H big shots are acceptable for a 2 into 2 as are the Bassani Pro Streets. Rush and Jackpot slip ons are good too, and the old favourite Cycle Shack are still very good slip ons. The best 2 into 1 systems are the D & D Fatcat, V & H Pro Pipe, Thunder Header, and the Bub 2-1. Exhausts are very much a personal choice since they change the looks and sound of your pride & joy but the above systems are all proven on the dyno to increae torque & HP dependent on cams & other engine mods. I had a D & D Fatcat on my bike & it went well but I hated the sound. Everyone will advise you differently on this topic!

[banquo]

Not sure how true this is for the more recent models, but the general recommendation used to be to keep the stock headers, which were a good length and shape, changing only the end cans. This from Mikuni, who know a thing or two...

K&N filter inside the existing cover is (relatively) inexpensive and lasts for ever, and the SE filters used to be K&N. I think I read they're not any more, but don't hold me to that...

Someone else will know for sure..

[softail898]

I don't understand why everyone is obsessed with performance! We ride Harleys not Yamahas or Ducatis. To me this is an irrelevant question. Put on whatever exhausts you like/like the sound of. Yes, make sure the bike can breath freely and get rid of the exhaust gasses as efficiently as possible but after all that money goes to the Dealer/Tuner you will still not have a bike that can Go/Handle anything like a Jap or italian. It is all cosmetic, something to be talked about in the Pub. Look at the weight of the average Harley....I am guessing, but I would think its around 800 or 900 Lbs. with Dressers coming in at a lot more. Does anyone really think that you can throw a Harley around the country lanes like a Yam, Kawasaki or Duke? Of course not. A Harley is a different animal entirely. There are exceptions, simon Dynas fxdx project , but this was built with a specific aim in mind. It probably handles as well as a Harley can be made to handle and it goes like Sh*t off a Shovel. But at what cost in Pound Notes? I wouldnt dream of asking Simon, but reading his post I can see the calculator going haywire. Yes it's nice to have a Stage 1 (or 2,3 or 4 even) so it is more responsive but an awful lot of hard earned cash is spent trying to get that few extra H.P.
Pat