Looking for more torque
Thread Starter
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Novice
Joined: Nov 2015
Posts: 18
Likes: 0
From: Pennsylvania
No tuner or the Power Vision is going to make up for him having those true duals on that setup. He would be throwing money away right now just trying to get there with buying the PV and paying for another tune.
OP, You got some good advice above, talk to a good builder and see what they say about those cams. But I believe different cams and a good 2:1 will start you in the right direction.
OP, You got some good advice above, talk to a good builder and see what they say about those cams. But I believe different cams and a good 2:1 will start you in the right direction.
Road Warrior
Joined: Nov 2007
Posts: 1,800
Likes: 307
From: Houston, Texas
Another vote for talking to an expert or doing a lot of research on cams.
I have a Limited that my Indy put S&S 510 cams in. It runs great but the cam comes on late for my riding style. When he rebuilt my Road King I told him I wanted the torque to come on sooner, he put in some SE204 cams. Both bikes are basically the same 103 engine but ride totally different because of the different cams. The Road King with the 204's has lots of low end grunt, even with true duals. It jumps even at low RPM's with a little twist of the throttle. The Limited with a stock 2-1-2 head pipe, cat removed, and the 510 cams will probably out run the Road King after it caught up in a long run but is a dog in the low RPM's. Even at cruising speed I usually have to down shift to get it to go. Especially two up.
I'm not necessarily recommending either cam for the OP, my point is the cam needs to not only be matched to the build, but the riders personal tastes and riding style. Who cares if a cam makes great torque and horsepower at 5,000 RPM if you almost always shift before 4500. Vise versa if it comes on early and falls off because you like to shift at the rev limiter.
Good luck. Choosing the right cam for you and your build will be a daunting task requiring a lot of conversation and research and you will always wonder if you made the right choice. Especially with so many options out there and everyone having their favorite. And has others have mentioned, if it's not tuned right, what might be the perfect cam for you will suck worse than what you have.
I have a Limited that my Indy put S&S 510 cams in. It runs great but the cam comes on late for my riding style. When he rebuilt my Road King I told him I wanted the torque to come on sooner, he put in some SE204 cams. Both bikes are basically the same 103 engine but ride totally different because of the different cams. The Road King with the 204's has lots of low end grunt, even with true duals. It jumps even at low RPM's with a little twist of the throttle. The Limited with a stock 2-1-2 head pipe, cat removed, and the 510 cams will probably out run the Road King after it caught up in a long run but is a dog in the low RPM's. Even at cruising speed I usually have to down shift to get it to go. Especially two up.
I'm not necessarily recommending either cam for the OP, my point is the cam needs to not only be matched to the build, but the riders personal tastes and riding style. Who cares if a cam makes great torque and horsepower at 5,000 RPM if you almost always shift before 4500. Vise versa if it comes on early and falls off because you like to shift at the rev limiter.
Good luck. Choosing the right cam for you and your build will be a daunting task requiring a lot of conversation and research and you will always wonder if you made the right choice. Especially with so many options out there and everyone having their favorite. And has others have mentioned, if it's not tuned right, what might be the perfect cam for you will suck worse than what you have.
Stellar HDF Member
Joined: Dec 2009
Posts: 2,561
Likes: 280
From: North Cental Iowa
The 48s will work well in that set-up, a 2-1 will help also, that should get you where you want to be with a good tune.There's nothing wrong with the Direct link tuner, you just need to find someone that is familiar with using that tuner as you'll need a tune with the parts swap, it should easily get you to 100 TQ.
Tourer
Joined: Feb 2016
Posts: 486
Likes: 155
From: British Columbia
Looks like you made all the usual standard upgrades. If you want torque to come on sooner, do the simple one modification of changing your ratio at the drive belt sprocket. Easy, least expensive route to take. Best of luck.
Thread Starter
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Novice
Joined: Nov 2015
Posts: 18
Likes: 0
From: Pennsylvania
So what you think be the best ratio? I been thinking for tranny sprocket. Go with 34 teeth.
Thread Starter
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Novice
Joined: Nov 2015
Posts: 18
Likes: 0
From: Pennsylvania
The 48s will work well in that set-up, a 2-1 will help also, that should get you where you want to be with a good tune.There's nothing wrong with the Direct link tuner, you just need to find someone that is familiar with using that tuner as you'll need a tune with the parts swap, it should easily get you to 100 TQ.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
That's the wrong direction, assuming your stock size is 32T. To give you increased acceleration I suggest you use 30T, which is in fact what I have on my own bike. You will however probably also need a shorter belt, I certainly did.
Road Warrior
Joined: Sep 2007
Posts: 1,252
Likes: 142
I have 510 cams in my 03 road king classic and I don't have to drop it down a gear to pass anymore. Mine seem to come on around 2400 rpm and they keep going and going and going. But a road king is a little lighter than a full dresser.
randy
randy
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Thread Starter
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Novice
Joined: Nov 2015
Posts: 18
Likes: 0
From: Pennsylvania
My bad I ment 30T. I had to double take. Thanks
Cruiser
Joined: Nov 2011
Posts: 227
Likes: 84
From: ne.
I have the 510 cams in my 09 FLHT and at 80 mph and 3000 rpm I can just roll the throttle on in 6th gear and it really jumps!