Andrews 55 cams
Thread Starter
|
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
Andrews 55 cams
Has anyone run the Andrews 55 cams. I am putting them in a 2010 FLHTK. I know they have lots of duration and will have to increase Compression to above 10 to 1 eventually. I am also changing to the 30 tooth front pulley and 139 tooth belt. I know it will come on pretty far to the right for a heavy bike. I love the sound of True Duals and a larger overlap cam. I do my own tuning on PV, so getting a map won't be a problem. The 30 tooth will make up for some or most of the lowend torque loss. Already have all the stuff so just wanting to know if anyone has done the 55's and what was their thoughts.
Ultimate HDF Member
Joined: Mar 2012
Posts: 6,129
Likes: 143
From: Santa Cruz
That's a lot of cam for any bagger. I'm running 54s in my 103 with 10-1 compression pistons and stock heads. It makes 109/99 and 100+tq from 2500 to 5300. I'm thinking about headwork? I have no problem shifting and running higher rpms but without at least headwork and a compression bump I wouldn't go to 55s. And then I'd start worrying about the crank???
Last edited by 0ldhippie; Oct 24, 2013 at 09:08 AM.
Thread Starter
|
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
That's a lot of cam for any bagger. I'm running 54s in my 103 with 10-1 compression pistons and stock heads. It makes 109/99 and 100+tq from 2500 to 5300. I'm thinking about headwork? I have no problem shifting and running higher rpms but without at least headwork and a compression bump I wouldn't go to 55s. And then I'd start worrying about the crank???
Son in law has a 2012 FLHTK and the TW555 cams and 30 tooth pulley setup. It has way more torque from idle than the stock and will run 6th gear down to 45 mph if you want. It will take the slack up in the forks when you accelerate in 6th gear at 60 mph. I ride his quite a bit while supposedly tuning it and it will make me regret getting back on my stage 1 2010 FLHTK. Hopefully the 55's will be ok. You can pour the timing to these higher duration cams without ping problems.
I won't have any dyno numbers, but will try and post results when I get off my rear and do the swap and tune.
Road Captain
Joined: Apr 2009
Posts: 531
Likes: 4
From: Chile Flats, AZ
Andrews 54s
Like oldhippie, I'm running the 54s; had them in the 117" B-motor; and now in the 107" A-motor, 10.2:1 CR, no head work.
Did the 30-tooth output shaft switch before the engine work, now wish I hadn't because I need another gear; but I wouldn't go back either.
I will say that 2-up and loaded, there is no substitute for the 30-tooth gearing and getting off the line. We ride with a bunch of RKs and they got nothing on us getting going.
But my acceleration above 80-85 is a little slower than I'd like getting to the century.... guess it's time for headwork this winter.
Did the 30-tooth output shaft switch before the engine work, now wish I hadn't because I need another gear; but I wouldn't go back either.
I will say that 2-up and loaded, there is no substitute for the 30-tooth gearing and getting off the line. We ride with a bunch of RKs and they got nothing on us getting going.
But my acceleration above 80-85 is a little slower than I'd like getting to the century.... guess it's time for headwork this winter.
Thread Starter
|
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
Here is a map we are running on Son in laws bike with the TW555 and 30 tooth. He has the Power duals and 4 inch slipons. I didn't see what exhaust you are running. The timing map on this one is close to being maxed out. If you are running 2 in 1 or 2 in 2 may need to richen the idle and cruise range some. I would go 5% at a time if it pops at a steady cruise or if it hesitates at idle. If it speeds up and down at idle after warm will need to lean 2 to 5%. Don't think you will have ping problem, but can't ever be sure. I have already made a few adjustments for the 107 and 10.2 compression. Get the tune close as you can before autotuning is my recommendation. If you don't get what you expect with the autotune you can always go back to where you were. Try it or steal the timing map if different than yours. If you are still running the stock timing map it will be much different. Son in laws is pretty stout from 80 to 110 and he doesn't have the compression and is running 103. The 555 and 54 are pretty similar.
Stellar HDF Member
Joined: Sep 2007
Posts: 2,458
Likes: 671
From: Vancouver Island B.C.
Trending Topics
Thread Starter
|
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
Good to know on the quietest. I am using the Woods Directional Lifters and tapered pushrods and SE compensator also. Hopefully it will be quiet, but radio and exhaust are still dampening the noises. Most of the higher overlap/duration cams like more compression. The stock style cams are the only ones that don't benefit from compression as they build so much compression with their timing numbers and lack of overlap (below 20°) that they can't use any more.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
6th Gear
Joined: Aug 2013
Posts: 10
Likes: 0
From: Spring, TX
Has anyone run the Andrews 55 cams. I am putting them in a 2010 FLHTK. I know they have lots of duration and will have to increase Compression to above 10 to 1 eventually. I am also changing to the 30 tooth front pulley and 139 tooth belt. I know it will come on pretty far to the right for a heavy bike. I love the sound of True Duals and a larger overlap cam. I do my own tuning on PV, so getting a map won't be a problem. The 30 tooth will make up for some or most of the lowend torque loss. Already have all the stuff so just wanting to know if anyone has done the 55's and what was their thoughts.
Last edited by sforce68; Sep 3, 2014 at 06:56 PM.
Thread Starter
|
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
I have the Andrews 55HG gear drives in my 2013 FLHRC 103 with stock compression, and to me it's perfect! The rest of the engine is completely stock, the heads were never removed; it even has the stock throttle body, and stock valve springs. The only other mods are: SE extreme billet A/C, D&D Fat Cat 2into1 exhaust, SE Super a Tuner Pro, and of course the dyno tune. Oh I did put on one tooth smaller front sprocket. The bike screams. If you want to go fast all you have to do is twist the throttle no matter what gear your in. Torque is over 100ftlbs from 2500 RPM, and the peak numbers were 101 HP, and 111 TQ. The bike pulls hard from 2500 all the way to the rev limiter at 6500. I love this cam, and it had a nice lopie idle at 1K rpm. Suh-Weet!