ping, ping, ping...
Thread Starter
|
Road Warrior
Joined: Oct 2009
Posts: 1,664
Likes: 99
From: P.E.I. Canada
ping, ping, ping...
Ok, I've had enough!! I've got the timing set back 2 degrees, I'm running a AFR of 13 From 40% TP and up, I'm running hightest fuel with additives, and I still ping when I hit the throttle. ANYONE have ANY ideas?? I even went back to stock spark plugs, tried unhooking my temp sensor on the advice of the local harley dealer, and I just have no ideas left. Nothing makes ANY difference.
Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
Likes: 19,811
From: Centennial, CO
Are those Longshots? Running baffles or open? If open I suggest a baffle of some sort. Just a WAG. I was having all kinds of troubles til i put in a lollypop type insert.
Ooops. just made your V&H BSL note. Still....
Ooops. just made your V&H BSL note. Still....
Last edited by QC; May 14, 2012 at 09:38 PM. Reason: more info
Outstanding HDF Member
Joined: Aug 2009
Posts: 2,729
Likes: 7
From: Republic of Texas
Ok, I've had enough!! I've got the timing set back 2 degrees, I'm running a AFR of 13 From 40% TP and up, I'm running hightest fuel with additives, and I still ping when I hit the throttle. ANYONE have ANY ideas?? I even went back to stock spark plugs, tried unhooking my temp sensor on the advice of the local harley dealer, and I just have no ideas left. Nothing makes ANY difference.
Elite HDF Member
Joined: Jun 2008
Posts: 4,109
Likes: 9
From: Connecticut
When do you shift, rpm? speed? if you shift at too low aan rpm you will get ping and never get it out. 255's in an engine will build higher cyl pressure. whats the ccp? Didn't you have the same problem last year? You also have the stage 1 upgrade in the program which changes the ing curve and rpm limiter. Maybe try 100 oct unleaded race fuel. If you shift at too low an rpm or fail to downshift then it will ping no matter what you use. Ping is caused by too much heat in the combustion chamber and the fuel mixture burning too fast..ie. mixture ingniting from both sides worse case is a knock. Basicly not enough info to diag this problem over the web with the info you are giving up.
Outstanding HDF Member
Joined: Aug 2009
Posts: 2,729
Likes: 7
From: Republic of Texas
Correct me if I am wrong but if your CR goes over 11.5:1 you need to be running atleast 100 octane race fuel as BLK&Chrome pointed out. Sometimes installing thicker head gaskets will lower your compression ratio and get rid of the ping. You will not know your CR without testing.
Trending Topics
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
Seems like just a week or two ago there was another member getting a lot of ping and it was general opinion that the 255's was the cause.
Might talk to a couple of the better builders around and see what their thoughts are on Ur built combo and if it needs tweated.
In all the yrs I've been in here there is one member who's motor builds opinions/knowledge is highly though of.
U might start with Dalton, give him a pm and have a little chat with him.
https://www.hdforums.com/forum/membe...17-dalton.html
.
Might talk to a couple of the better builders around and see what their thoughts are on Ur built combo and if it needs tweated.
In all the yrs I've been in here there is one member who's motor builds opinions/knowledge is highly though of.
U might start with Dalton, give him a pm and have a little chat with him.
https://www.hdforums.com/forum/membe...17-dalton.html
.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Thread Starter
|
Road Warrior
Joined: Oct 2009
Posts: 1,664
Likes: 99
From: P.E.I. Canada
There are no tuners within 5 hours from home or I would have got it done by now. As far as fuel goes, I'm running 98. I do shift at a pretty decent rpm, and get the ping at any rpm when I really hit the throttle so that doesn't seem to be the issue. I guess it could be the cam, but I would think that this problem would be a lot more common seeing as that cam is one of the most common ones installed with HD's 103 big bore kit...
Elite HDF Member
Joined: Jun 2008
Posts: 4,109
Likes: 9
From: Connecticut
I still think it's your tuner. 98 octane fuel? 93 is about the best we find here unless you go to race fuel. If indeed you have 98 fuel and it still pings take the auto tune crap off and dial some fuel and cut a little timing. what is your target AFR? I have to say that you are looking for the magic bullet to fix this and you are not telling all the facts needed to diag this problem. Or just call Jamie at fuel moto and let him walk you through it. Thats his tuner he markets. He knows more about them than most.
Last edited by Blk and Chrome; May 16, 2012 at 02:06 PM.