107 questions
Extreme HDF Member
Joined: Aug 2012
Posts: 11,392
Likes: 184
From: Big ol Titties
I am going on my second season with the 107 and had the heads done this winter. Head temps on mine run 270 on a 91 degree day sunny and humid. Temps stay around 250 - 260 on cold days. That is with a closed loop map and in the cruising range I have the closed loop bias pulled down to 500 just to experiment. Normal bias setting I run is 650.
Build is in my sig.
Build is in my sig.
Thread Starter
|
Road Warrior
Joined: Nov 2009
Posts: 1,444
Likes: 1
From: SC
I forgot about that. With these high compression builds you would think they would be necessary. Can I get ACR's on a 07 deluxe. I had the manual before on a previous bike. That was sorta aggrevating.
Cruiser
Joined: Jul 2010
Posts: 151
Likes: 0
From: Monticello Indiana
I noticed you had manual compression releases in your sig line. Did you find that you needed them? I talked to FM and they said they were recommended but not needed, just cheap insurance to put on there in case you did. I'm doing a similar build and I'm still on the fence about getting them or not.
If I were starting all over and building with the cold crank compression in the 195 to 200 range again yes I would want to have them just for the hot days if nothing else.
On my timing tables in the very upper right corner I run 1 degree then step to 4 degrees timing. This is a touch lower than the base maps I have received yet still more than my factory stock map. This timing adjustment won't fix a need for them but it does ease up on the starter some.
Cruiser
Joined: Jul 2010
Posts: 151
Likes: 0
From: Monticello Indiana
As for a 2007 I am not sure I know you can on 2010 so someone else will need to jump in and confirm for your year.
Cruiser
Joined: Jul 2010
Posts: 151
Likes: 0
From: Monticello Indiana
My stock spring wouldn't hold even before my heads were installed.
Extreme HDF Member
Joined: Aug 2012
Posts: 11,392
Likes: 184
From: Big ol Titties
That depends on a few different things. With my 555 cam intake closing at 41 and 10.5 compression I am pushing the edge on cold cranking compression for needing releases. "By the book" I need them, with a well worked timing table you I can get by not using them with no problems. I do use them on HOT days after fuel stops or any other "hot soak" condition just to be easy on the starter, other wise I do not use them. With just the 107 kit and 555 cams at 10.25 compression I never ran into a time that I felt like " I need comp releases".
If I were starting all over and building with the cold crank compression in the 195 to 200 range again yes I would want to have them just for the hot days if nothing else.
On my timing tables in the very upper right corner I run 1 degree then step to 4 degrees timing. This is a touch lower than the base maps I have received yet still more than my factory stock map. This timing adjustment won't fix a need for them but it does ease up on the starter some.
If I were starting all over and building with the cold crank compression in the 195 to 200 range again yes I would want to have them just for the hot days if nothing else.
On my timing tables in the very upper right corner I run 1 degree then step to 4 degrees timing. This is a touch lower than the base maps I have received yet still more than my factory stock map. This timing adjustment won't fix a need for them but it does ease up on the starter some.
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
Stellar HDF Member
Joined: Feb 2010
Posts: 3,394
Likes: 263
From: Southern California
I'm running without Compression Releases on the 2010 Heritage, with the build in my sig. It is definately right on the line for needing them, but I've got over 21K on the build and at 28K on the original Starter it was probably a reasonable decision for this build to go without.
Stellar HDF Member
Joined: Feb 2011
Posts: 3,048
Likes: 3
From: Central Jersey
Yes I've stayed with the stock clutch, so far. I want to see how everything holds up for awhile before i start playing with the ideas of a heavier duty clutch, or going chain drive, or any of that fun stuff.
I noticed you had manual compression releases in your sig line. Did you find that you needed them? I talked to FM and they said they were recommended but not needed, just cheap insurance to put on there in case you did. I'm doing a similar build and I'm still on the fence about getting them or not.