88 - 96 ci ?
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Tourer
Joined: Apr 2012
Posts: 287
Likes: 1
From: Lincolnshire UK
my RKC has a full V&H exhaust system running a full stage one tune, also has nearly 45000mls on her too, dont get me wrong, she pulls ok and does cruise, but i want the more top end cruising speed without the massive rpm the engine would be running on a stock 88 and im thinking that the 95ci would be the best bet with cam etc
Supporter
Joined: May 2006
Posts: 1,752
Likes: 2
From: Indianapolis
I have a 2000 Ultra T/C 88, (with a 5spd) and at first I only had the Stage I Kit (a/c and V&H slip-on mufflers).
My bike (stock) would turn 3500 RPM's at 80MPH in 5th gear.
I wanted lower RPM's at cruising speeds so I had a Baker 6sdp trans installed and it then turned about 3050 RPM's at 80 MPH but the engine just didn't have any pick up until it got above 3500 RPM's.
SHortly after the installation of the 6 spd tranny, I had the 1550 kit installed and that made a world of difference!
I rarely go over 80-85 MPH but the low to mid-range torque really pulls the bike around very well and is well worth the cost of the upgrade.
I now have 79,000 miles on the bike (about 39,000 on the 1550 kit) and she's still running great and I'd recommend the 1550 to those who are looking
for a little more pep in their T/C 88.
My bike (stock) would turn 3500 RPM's at 80MPH in 5th gear.
I wanted lower RPM's at cruising speeds so I had a Baker 6sdp trans installed and it then turned about 3050 RPM's at 80 MPH but the engine just didn't have any pick up until it got above 3500 RPM's.
SHortly after the installation of the 6 spd tranny, I had the 1550 kit installed and that made a world of difference!
I rarely go over 80-85 MPH but the low to mid-range torque really pulls the bike around very well and is well worth the cost of the upgrade.
I now have 79,000 miles on the bike (about 39,000 on the 1550 kit) and she's still running great and I'd recommend the 1550 to those who are looking
for a little more pep in their T/C 88.
Road Warrior
Joined: Mar 2011
Posts: 1,378
Likes: 2
From: Macon, GA USA
You better do some checking as 88 is not the same bore as a 95. The 96 has the same bore as a 88 but a longer stroke. A 95 has the same stroke as a 88 but has a bigger bore. The 103 has both a bigger bore and stroke over the 88.
The twin cam motor is the hottest running motor HD ever made even over my 74 flat head I use to have. Why do you think they have the oil spouts that shoot oil under the pistons? If you look at the 103 kit they say you need to run a oil cooler. I would not run any twin cam with out one since they get so hot.
When you bore a cylinder out you are taking materiel that helps the engine displace heat. But what do I know as I have only been riding and work oh Harley s including machine none stop for for over 40 years. Much of the time making my living doing it.
The twin cam motor is the hottest running motor HD ever made even over my 74 flat head I use to have. Why do you think they have the oil spouts that shoot oil under the pistons? If you look at the 103 kit they say you need to run a oil cooler. I would not run any twin cam with out one since they get so hot.
When you bore a cylinder out you are taking materiel that helps the engine displace heat. But what do I know as I have only been riding and work oh Harley s including machine none stop for for over 40 years. Much of the time making my living doing it.
Road Warrior
Joined: Mar 2011
Posts: 1,378
Likes: 2
From: Macon, GA USA
There are several types 6 speeds. One that is a real over drive and is not a 1 to 1 high gear but takes a bigger motor to pull it and them many times you have to be running 80 to put it in high gear and then most have the same end ratio as a 5 speed which is 1 to 1. If you check you will see when HD went to the six speed they put a smaller pulley on the back gearing it up and is what makes the end ratio higher. The six speed just helps the motor to deal with the higher pulley. On something like a Baker DD6 which I installed on my bike instead of putting a smaller pulley on the rear they put a bigger motor sprocket on it which slows down every not like with the HD set up. Baker DD6 high gear is all so 1 to 1 just like a stock 5 speed. You get the higher gearing from the motor sprocket. Do not take my word for check the books and Baker web site.
Seasoned HDF Member
Joined: Nov 2010
Posts: 17,548
Likes: 7,197
From: Oxford, Nc
You better do some checking as 88 is not the same bore as a 95. The 96 has the same bore as a 88 but a longer stroke. A 95 has the same stroke as a 88 but has a bigger bore. The 103 has both a bigger bore and stroke over the 88.
*That is exactly what mkguitar said..
The twin cam motor is the hottest running motor HD ever made even over my 74 flat head I use to have. Why do you think they have the oil spouts that shoot oil under the pistons? If you look at the 103 kit they say you need to run a oil cooler. I would not run any twin cam with out one since they get so hot.
* My 95" ( 2000,) Stage II has 115,000 miles on it and has never had an oil cooler,even down here in NC. Stroker TC's do put out more heat. ( 07 and later.)
When you bore a cylinder out you are taking materiel that helps the engine displace heat. But what do I know as I have only been riding and work oh Harley s including machine none stop for for over 40 years. Much of the time making my living doing it.
*That is exactly what mkguitar said..
The twin cam motor is the hottest running motor HD ever made even over my 74 flat head I use to have. Why do you think they have the oil spouts that shoot oil under the pistons? If you look at the 103 kit they say you need to run a oil cooler. I would not run any twin cam with out one since they get so hot.
* My 95" ( 2000,) Stage II has 115,000 miles on it and has never had an oil cooler,even down here in NC. Stroker TC's do put out more heat. ( 07 and later.)
When you bore a cylinder out you are taking materiel that helps the engine displace heat. But what do I know as I have only been riding and work oh Harley s including machine none stop for for over 40 years. Much of the time making my living doing it.
Last edited by Stiggy; Aug 26, 2012 at 08:57 AM.
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