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Motorcycles » rec.motorcycles.harley » 96" AND a 6 spd
| 96" AND a 6 spd [message #778833] |
Fri, 14 July 2006 20:29 |
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New Twin Cam 96, 6-speed Cruise Drive powertrain for 2007
The Next Generation in Big Twin Performance from Harley-Davidson
Harley-Davidson will launch an all-new Big Twin powertrain for 2007, as
the Twin Cam 96/96B engine and 6-speed Cruise Drive transmission debut
together on all Touring, Softail and Dyna models. The new engine, which
will only be available with Electronic Sequential Port Fuel Injection
(ESPFI), offers a nine percent increase in displacement and up to a 17
percent increase in torque (varies by model) over the Twin Cam 88/88B
engines it replaces, and features a number of design enhancements making
it more powerful, reliable and smoother.
"The Twin Cam 96 has been the biggest new-engine program in the history
of Harley-Davidson," said Skip Metz, Program Manager-Big Twin
Powertrain. "There are more than 700 new part numbers associated with
Twin Cam 96. The only areas that didn't change are the cylinders, rocker
arms, rocker boxes, and items in the top part of the engine.
Crankshafts, connecting rods, crank cases, transmission cases, and all
the transmission parts are new. We think this next-generation Twin Cam
will set the standard for the industry."
The Twin Cam 96 displaces 1584cc (96 cid), compared to 1450cc (88 cid)
for the Twin Cam 88 engine it replaces. The added displacement was
achieved by increasing stroke from 4.00 inches to 4.38 inches. The Twin
Cam 96 cylinder bore is 3.75 inches, the same as that of the Twin Cam
88. The Twin Cam 96B is designed to be rigid-mounted in Harley-Davidson
Softail models, and is equipped with internal counter-balance shafts to
provide a smooth and powerful ride.
The Twin Cam 96 produces up to 93 ft. lbs. of peak torque at 3500 rpm,
compared to the Twin Cam 88 at up to 82 ft. lbs. at 3500 rpm.
The 6-speed Cruise Drive transmission, which was introduced on the Dyna
family in 2006, features gear ratios optimized to match the torque curve
of the new Twin Cam 96/96B engines. The addition of a higher-ratio sixth
gear reduces top-gear rpm by 11 percent, compared to the previous
5-speed Big Twin transmission. At 75 mph, engine speed is reduced by 368
rpm, from 3227 rpm to 2859 rpm. Second through fourth gears have
helical-cut teeth for quieter operation, and load carrying capacity has
been increased significantly.
Twin Cam 96 Highlights
Traditional V-Twin Styling: The Twin Cam 96/96B remains the styling
centerpiece of each Harley-Davidson Big Twin model, and it retains the
look, sound and feel that has always been part of the Big Twin
character. The Twin Cam 96 preserves the styling characteristics of the
Twin Cam 88 and the heritage of its predecessors.
New Crankcase Design: The starter is now bolted directly to the inner
primary housing, eliminating the starter jackshaft for improved starter
performance. An integral oil filter adapter eliminates gaskets and
hardware. Internal oil passages between the engine and transmission on
the Twin Cam 96 eliminate external oil lines and fittings.
Reduced Reciprocating Mass: Lighter pistons and lighter, shorter
connecting rods increase performance and reduce vibration. Despite an
increase in displacement, the Twin Cam 96 and the counter-balanced 96B
are noticeably smoother than the Twin Cam 88 at most engine speeds.
Improved Camshaft Design: The new cams are lighter and use improved
materials for enhanced durability. New hydrostatic, plain cam bearings
replace the previous roller bearings and offer increased durability,
reduced complexity and quieter operation. New multi-piece assembled
camshafts replace the previous forged, single-piece cams. A new,
hydraulic automatic cam chain tensioner replaces the previous
spring-loaded mechanical tensioner.
Improved Oil Pump: A new oil pump assembly provides 10 percent more flow
and 23 percent more scavenging capacity than the previous design. The
Twin Cam 96 also has an integrated oil cooler adapter.
Improved EFI: New 25-degree fuel injector nozzles offer better fuel
atomization and spray targeting than the previous 8-degree injectors,
and help reduce exhaust emissions and improve driveability. A new O2
feedback sensor in the exhaust helps fine-tune EFI performance and
reduce exhaust emissions.
New Primary Chain Tensioner: A new automatic primary chain tensioner
eliminates the manual service adjustment of the primary chain. The inner
and outer primary drive covers are redesigned to improve the appearance
of the painted, polished or chromed surface.
New Exhaust Tuning: Muffler tuning has been changed to both improve
exhaust flow for increased performance, and to improve the sound quality
of the exhaust. Low frequencies have been enhanced to give the Twin Cam
96 a new, commanding exhaust tone that preserves the legendary
Harley-Davidson sound.
Bolt-On 103 Big Bore Kit: An increase in displacement to 103 cid can be
achieved by adding a bolt-on Big Bore Kit with 3.875-inch bore cylinders
and matching pistons from Harley-Davidson Genuine Motor Accessories. It
is no longer necessary to add a stroker kit to get to 103 cid.
6-Speed Cruise Drive Transmission Highlights
New Gear Ratios: New gear ratios have been selected to match the torque
curve characteristics of the Twin Cam 96 engine. Roll-on acceleration
performance is improved in all gears. Top gear cruising ratios are
reduced significantly with the addition of the sixth gear and passing
capability is improved.
Smoother Shifting: Shift effort is significantly reduced because steel
"dog rings" that slide to cause gear changes replace moving gears.
Because the dog rings have less mass than gears, shifting is quicker and
smoother, and the throw of the shift lever is reduced.
New Transmission Case: Larger internal bearings, larger gears and a
stiffer transmission housing all combine to improve over-all durability,
and torque-carrying capacity is increased by 28 percent. The
transmission for Dyna and Touring models has internal oil passages that
eliminate external oil lines and fittings and the opportunity for leaks.
The Softail transmission retains external oil lines.
New Gears: Helical-cut gear teeth, initially developed for the VRSC
family, present a larger contact area than the previous straight-cut
gears, so they are stronger and also quieter. A new cassette gear
cluster is easy to remove for improved serviceability.
Reduced Clutch Lever Effort: Reduced clutch spring rates, a revised
ball-and-ramp design, and a new, more-efficient clutch cable combine to
reduce clutch lever effort by up to seven percent (varies by model).
Service Intervals: The new Twin Came 96 engine primary chaincase drain
interval is 10,000 miles, while the 6-speed Cruise Drive transmission
drain interval is 20,000 miles.
--
Kickstart AH #127 the" justfoundout " Asshole(tm)
SENS BS182 DOF2 NS2 TL2
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| Re: 96" AND a 6 spd [message #778842 ] |
Sat, 15 July 2006 14:20 |
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Kickstart wrote:
> New Twin Cam 96, 6-speed Cruise Drive powertrain for 2007
> The Next Generation in Big Twin Performance from Harley-Davidson
>
> Harley-Davidson will launch an all-new Big Twin powertrain for 2007, as
> the Twin Cam 96/96B engine and 6-speed Cruise Drive transmission debut
> together on all Touring, Softail and Dyna models. The new engine, which
> will only be available with Electronic Sequential Port Fuel Injection
> (ESPFI), offers a nine percent increase in displacement and up to a 17
> percent increase in torque (varies by model) over the Twin Cam 88/88B
> engines it replaces, and features a number of design enhancements making
> it more powerful, reliable and smoother.
>
> "The Twin Cam 96 has been the biggest new-engine program in the history
> of Harley-Davidson," said Skip Metz, Program Manager-Big Twin
> Powertrain. "There are more than 700 new part numbers associated with
> Twin Cam 96. The only areas that didn't change are the cylinders, rocker
> arms, rocker boxes, and items in the top part of the engine.
> Crankshafts, connecting rods, crank cases, transmission cases, and all
> the transmission parts are new. We think this next-generation Twin Cam
> will set the standard for the industry."
>
> The Twin Cam 96 displaces 1584cc (96 cid), compared to 1450cc (88 cid)
> for the Twin Cam 88 engine it replaces. The added displacement was
> achieved by increasing stroke from 4.00 inches to 4.38 inches. The Twin
> Cam 96 cylinder bore is 3.75 inches, the same as that of the Twin Cam
> 88. The Twin Cam 96B is designed to be rigid-mounted in Harley-Davidson
> Softail models, and is equipped with internal counter-balance shafts to
> provide a smooth and powerful ride.
>
> The Twin Cam 96 produces up to 93 ft. lbs. of peak torque at 3500 rpm,
> compared to the Twin Cam 88 at up to 82 ft. lbs. at 3500 rpm.
>
> The 6-speed Cruise Drive transmission, which was introduced on the Dyna
> family in 2006, features gear ratios optimized to match the torque curve
> of the new Twin Cam 96/96B engines. The addition of a higher-ratio sixth
> gear reduces top-gear rpm by 11 percent, compared to the previous
> 5-speed Big Twin transmission. At 75 mph, engine speed is reduced by 368
> rpm, from 3227 rpm to 2859 rpm. Second through fourth gears have
> helical-cut teeth for quieter operation, and load carrying capacity has
> been increased significantly.
>
> Twin Cam 96 Highlights
> Traditional V-Twin Styling: The Twin Cam 96/96B remains the styling
> centerpiece of each Harley-Davidson Big Twin model, and it retains the
> look, sound and feel that has always been part of the Big Twin
> character. The Twin Cam 96 preserves the styling characteristics of the
> Twin Cam 88 and the heritage of its predecessors.
>
> New Crankcase Design: The starter is now bolted directly to the inner
> primary housing, eliminating the starter jackshaft for improved starter
> performance. An integral oil filter adapter eliminates gaskets and
> hardware. Internal oil passages between the engine and transmission on
> the Twin Cam 96 eliminate external oil lines and fittings.
>
> Reduced Reciprocating Mass: Lighter pistons and lighter, shorter
> connecting rods increase performance and reduce vibration. Despite an
> increase in displacement, the Twin Cam 96 and the counter-balanced 96B
> are noticeably smoother than the Twin Cam 88 at most engine speeds.
>
> Improved Camshaft Design: The new cams are lighter and use improved
> materials for enhanced durability. New hydrostatic, plain cam bearings
> replace the previous roller bearings and offer increased durability,
> reduced complexity and quieter operation. New multi-piece assembled
> camshafts replace the previous forged, single-piece cams. A new,
> hydraulic automatic cam chain tensioner replaces the previous
> spring-loaded mechanical tensioner.
>
> Improved Oil Pump: A new oil pump assembly provides 10 percent more flow
> and 23 percent more scavenging capacity than the previous design. The
> Twin Cam 96 also has an integrated oil cooler adapter.
>
> Improved EFI: New 25-degree fuel injector nozzles offer better fuel
> atomization and spray targeting than the previous 8-degree injectors,
> and help reduce exhaust emissions and improve driveability. A new O2
> feedback sensor in the exhaust helps fine-tune EFI performance and
> reduce exhaust emissions.
>
> New Primary Chain Tensioner: A new automatic primary chain tensioner
> eliminates the manual service adjustment of the primary chain. The inner
> and outer primary drive covers are redesigned to improve the appearance
> of the painted, polished or chromed surface.
>
> New Exhaust Tuning: Muffler tuning has been changed to both improve
> exhaust flow for increased performance, and to improve the sound quality
> of the exhaust. Low frequencies have been enhanced to give the Twin Cam
> 96 a new, commanding exhaust tone that preserves the legendary
> Harley-Davidson sound.
>
> Bolt-On 103 Big Bore Kit: An increase in displacement to 103 cid can be
> achieved by adding a bolt-on Big Bore Kit with 3.875-inch bore cylinders
> and matching pistons from Harley-Davidson Genuine Motor Accessories. It
> is no longer necessary to add a stroker kit to get to 103 cid.
>
> 6-Speed Cruise Drive Transmission Highlights
> New Gear Ratios: New gear ratios have been selected to match the torque
> curve characteristics of the Twin Cam 96 engine. Roll-on acceleration
> performance is improved in all gears. Top gear cruising ratios are
> reduced significantly with the addition of the sixth gear and passing
> capability is improved.
>
> Smoother Shifting: Shift effort is significantly reduced because steel
> "dog rings" that slide to cause gear changes replace moving gears.
> Because the dog rings have less mass than gears, shifting is quicker and
> smoother, and the throw of the shift lever is reduced.
>
> New Transmission Case: Larger internal bearings, larger gears and a
> stiffer transmission housing all combine to improve over-all durability,
> and torque-carrying capacity is increased by 28 percent. The
> transmission for Dyna and Touring models has internal oil passages that
> eliminate external oil lines and fittings and the opportunity for leaks.
> The Softail transmission retains external oil lines.
>
> New Gears: Helical-cut gear teeth, initially developed for the VRSC
> family, present a larger contact area than the previous straight-cut
> gears, so they are stronger and also quieter. A new cassette gear
> cluster is easy to remove for improved serviceability.
>
> Reduced Clutch Lever Effort: Reduced clutch spring rates, a revised
> ball-and-ramp design, and a new, more-efficient clutch cable combine to
> reduce clutch lever effort by up to seven percent (varies by model).
>
> Service Intervals: The new Twin Came 96 engine primary chaincase drain
> interval is 10,000 miles, while the 6-speed Cruise Drive transmission
> drain interval is 20,000 miles.
>
> --
> Kickstart AH #127 the" justfoundout " Asshole(tm)
> SENS BS182 DOF2 NS2 TL2
Dat does it! I'm cutting you and Dave Nichols off. Not only has it ben
posted here almost ad nauseum (only cause I can't afford one) but also
on the SENS list. But they do look niz hu? They even kept the blk/red
combo so if'n I buy one, no one would ever know I traded in the 01.
Now, I wana see who byes da green one.
rico
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| Re: 96" AND a 6 spd [message #778911 ] |
Sun, 16 July 2006 00:18 |
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ilbcnurico [at] aol.com wrote:
> Kickstart wrote:
<huge snip>
>
> Dat does it! I'm cutting you and Dave Nichols off. Not only has it ben
> posted here almost ad nauseum (only cause I can't afford one) but also
> on the SENS list. But they do look niz hu? They even kept the blk/red
> combo so if'n I buy one, no one would ever know I traded in the 01.
> Now, I wana see who byes da green one.
Hey rico, Kickstart posted that early yesterday. I still haven't seen it
on my server, only your reply. That being said, why the hell are you
cutting me off? I've been suffering at the dealership all day waiting to
see if the bike would be coming home today or not. Life worked out well
and it came home, but I need a nice frosty adult malt beverage and you
want to cut me off? Shame on you!
--
DaveN BS#163 SENS
"You can't be a real country unless you have a beer and an airline - it
helps if you have some kind of football team, or some nuclear weapons,
but at the very least you need a beer."
Frank Zappa
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| Re: 96" AND a 6 spd [message #778912 ] |
Sun, 16 July 2006 00:36 |
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Dave Nichols wrote:<snipageronei>
.. Life worked out well
> and it came home, but I need a nice frosty adult malt beverage and you
> want to cut me off? Shame on you!
Ok, OK, but just one! YA got a new BIKE!! kewl!I'll just hafta go the
and drool
rico
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| Re: 96" AND a 6 spd [message #778915 ] |
Sun, 16 July 2006 00:56 |
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ilbcnurico [at] aol.com wrote:
> Dave Nichols wrote:<snipageronei>
> . Life worked out well
>> and it came home, but I need a nice frosty adult malt beverage and you
>> want to cut me off? Shame on you!
>
> Ok, OK, but just one! YA got a new BIKE!!
Not hardly. I just dropped 2K on having a top-end job on the train and
had to go back today because it sounded like it was ready to grenade on
me. The VOES was shot so the timing advance wasn't slowed on high vacuum
resulting in just a wee bit of detonation. Still the same old Evo and
after the past week of expenditure it will have a home in my garage for
a looong time. No new bike in my future.
I still wanna know why I got cut off.
--
DaveN BS#163 SENS
"You can't be a real country unless you have a beer and an airline - it
helps if you have some kind of football team, or some nuclear weapons,
but at the very least you need a beer."
Frank Zappa
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| Re: 96" AND a 6 spd [message #778931 ] |
Sun, 16 July 2006 04:29 |
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Dave Nichols wrote:
>
> I still wanna know why I got cut off.
Dat troll thead wuz kinda out of character for you I thought so I
figure you was dipping into the fresh brewed reserves.
rico
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