08 ultra
Extreme HDF Member
Joined: Sep 2006
Posts: 10,920
Likes: 6
From: Upstate New York
RE: 08 ultra
was on mine from 8 AM till 6 pm yesterday....
problems,,,, yup....... "married with children,!!!!"
as far as Slip On's vs TD's....
I suggest,depends where you are ,, if your area is crakin down on EPA,NOISE...
dont spend the $ on TD's
I have only added slipons,,, alls FINE!
6,000 miles
problems,,,, yup....... "married with children,!!!!"
as far as Slip On's vs TD's....
I suggest,depends where you are ,, if your area is crakin down on EPA,NOISE...
dont spend the $ on TD's
I have only added slipons,,, alls FINE!
6,000 miles
Banned
Joined: Nov 2007
Posts: 3,492
Likes: 2
RE: 08 ultra
Thats great to hear about everyone who likes them. I opted not to buy one because of the stated heat issue. That the motor runs "hot from the factory. Excess heat and a motor is never good. While some here and other places say its no big deal, still others have put fans and done about 1500$ worth of modifications to cool it down. I'm not saying it is a long term issue or even an issue at all. I just wasn't satisfied with not fully understanding the impact on a 21,000$+ expense. I settled on a low milage 1998 Ultra EVO instead.
Road Master
Joined: Apr 2008
Posts: 1,230
Likes: 1
From: Oak Park, IL
RE: 08 ultra
I've only had mine for a couple of days, but ofthe Harley's I've owned, this is by far the most refined and enjoyable.
Ok, I have built afew fuel injected hot rods over the eyars and here is the story on the heat. With fuel injection it is possible to set a motor to run at a stoichmetric air fuel mixture which is 14.7:1. This is the theoretical cleanest and most efficiant mixture for an internal combustion engine, and also produces the most heat as a by-product of increased burn efficency. If emissions are not a consideration, you want your motor to run stoichmetric at cruise, but ONLY at cruise. You want to fatten up the mixture to run around 13.8 at idle, and somewhere between 13.5 - 14.3 under load ( this one depends a lot on cam, compression, timing,and flow ). What the MoCo did to avoid putting catalytic converters on the bikes was to run stoichmetric at idle hence giving the cleanest burn ( it appears they also choked the flow a bit to help out with emissions ). All it is going to take to make this motor run "cool" ( remember there are a lot of cubes sitting there ) is to open up the flow, then remap the A/F to fatten up the idle, and in order to increase power, fatten up the under load condition. Now there are also some timing issues that come into play, but that gets a little more complicated and is where a dyno can really help out.
The motor itself is sound and Harley knows that folks are going to want to make the changes to get there bikes to run better and cooler, hence the SE options, but to meet the goverments requirements they had to either set the A/F the way the bikes are now or run cats which would totally change the way the bikes sound.
Hope this helps clarify things a little,
Harry
Ok, I have built afew fuel injected hot rods over the eyars and here is the story on the heat. With fuel injection it is possible to set a motor to run at a stoichmetric air fuel mixture which is 14.7:1. This is the theoretical cleanest and most efficiant mixture for an internal combustion engine, and also produces the most heat as a by-product of increased burn efficency. If emissions are not a consideration, you want your motor to run stoichmetric at cruise, but ONLY at cruise. You want to fatten up the mixture to run around 13.8 at idle, and somewhere between 13.5 - 14.3 under load ( this one depends a lot on cam, compression, timing,and flow ). What the MoCo did to avoid putting catalytic converters on the bikes was to run stoichmetric at idle hence giving the cleanest burn ( it appears they also choked the flow a bit to help out with emissions ). All it is going to take to make this motor run "cool" ( remember there are a lot of cubes sitting there ) is to open up the flow, then remap the A/F to fatten up the idle, and in order to increase power, fatten up the under load condition. Now there are also some timing issues that come into play, but that gets a little more complicated and is where a dyno can really help out.
The motor itself is sound and Harley knows that folks are going to want to make the changes to get there bikes to run better and cooler, hence the SE options, but to meet the goverments requirements they had to either set the A/F the way the bikes are now or run cats which would totally change the way the bikes sound.
Hope this helps clarify things a little,
Harry
Road Master
Joined: Sep 2007
Posts: 1,184
Likes: 0
From: The Peoples Republic of Massachusstts
RE: 08 ultra
ORIGINAL: Trey Hogger
The 08 Ultra is a great bike in all regards - strong, surprisingly agile, and made to run long miles with comfort. Brakes are excellent, ABS a option to definitely pick. Sounds good with the right pipes too.
And pssst - personally, I always use the kill switch - I don't believe THAT is the cause of the high-idle problem people discuss - mis-applying throttle when shutting off is.
The 08 Ultra is a great bike in all regards - strong, surprisingly agile, and made to run long miles with comfort. Brakes are excellent, ABS a option to definitely pick. Sounds good with the right pipes too.
And pssst - personally, I always use the kill switch - I don't believe THAT is the cause of the high-idle problem people discuss - mis-applying throttle when shutting off is.
Novice
Joined: Sep 2007
Posts: 22
Likes: 0
From:
RE: 08 ultra
You'll love it. I got mine last July and ride almost every day. I live in VA and it does get a little hot on the thighs during the summer months, but it's nice during those 40 degree mornings when I head to work on it. Love the ABS, they've saved my behind more than once with these idiot's that drive around here.
Road Master
Joined: Jul 2007
Posts: 914
Likes: 1
From: Republic of Texas
RE: 08 ultra
ORIGINAL: JimSyndi
Love the ABS, they've saved my behind more than once with these idiot's that drive around here.
Love the ABS, they've saved my behind more than once with these idiot's that drive around here.
**(only one hitch in the Navy, 3 yrs/4 mos, in the 60s, and I think I'd've enjoyed life more if I'd have stayed longer)**
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