Go Back   Harley Davidson Forums > General Harley Davidson Forums > General Harley Davidson Chat
Sign in using an external account
Register Forgot Password?
Search

General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by: J&P Cycles

Welcome to HDForums.com!

Reply
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 03-13-2012, 02:24 PM
Druid Druid is offline
Senior Rider
Join Date: Aug 2011
Location: Chicago, IL
Posts: 357
Default Big Bore Kit 88->95

So I've searched and read on this forum that the only way to tell if a bike was upgraded from an 88 to a 95 via the Big Bore Kit, is to run the bike on a dyno and see what the numbers say. If the numbers are higher then expected for an 88, then you likely have a 95. I find that somewhat hard to believe.

Is there really no visible external indication that the bike was upgraded?
Reply With Quote
  #2  
Old 03-13-2012, 02:37 PM
Harley_Dude's Avatar
Harley_Dude Harley_Dude is online now
Ultimate HDF Member
Join Date: Jul 2007
Location:
Posts: 5,075
Default

It's just bigger pistons, how you gonna see that from outside?
__________________


I do mind, the Dude minds. This will not stand, ya know, this aggression will not stand, man.
Reply With Quote
  #3  
Old 03-13-2012, 02:40 PM
jamesw's Avatar
jamesw jamesw is online now
Road Master
Join Date: Sep 2008
Posts: 922
Default

Visually the same. Some things to consider as signs of potential motor work:

Look for an external tuner? I don't believe there's a flash upload for the ecu.

Maybe the different push rod covers as most replace the solid pushrods with adjustables if doing cams at the same time?

The motor would look identical; I used my existing jugs and had them bored.
__________________
At The Harley Museum
1999 FLHTCI
95CI with 10.25:1 Cast pistons
Heads ported and polished with Valves recut
Andrews Gear Cam Drive with Andrews 54 Cams
Jim's Hydrosolid II Lifters & Power Commander III
Reply With Quote
  #4  
Old 03-13-2012, 03:03 PM
harleydavis harleydavis is online now
Outstanding HDF Member
Join Date: May 2009
Location: Aptos, CA
Posts: 2,487
Default

No way to really tell. I had my cylinders bored and head work done, put in gear drive cams and re-jetted my carb. No external features indicate that it is 95 ci.
__________________


2000 Fatboy
95" Big Bore with headwork
Andrews 26G cams
Vance & Hines Pro Pipe HS
Reply With Quote
  #5  
Old 03-13-2012, 03:31 PM
AtkRWC's Avatar
AtkRWC AtkRWC is offline
Elite HDF Member
Join Date: Jul 2006
Location: Sur de Tejas
Posts: 4,363
Default

Don't rely on a dyno run...crappy 95 kit and your not making power. Cam upgrade and tune/carb upgrade on a 88 and your in the power. As others have said, no external diff. A lot of 95s are just bored 88s. Gotta take the heads off and measure the bore. Maybe if the piston tops were marked, could use a borescope, don't think so.
__________________
.
.
It's not my job to die for my country...It's my job to provide the max opportunity for the enemy to die for his!

And on the 8th day GOD created Attack Helicopter Pilots...And the gates of HELL opened!
Reply With Quote
  #6  
Old 03-13-2012, 03:48 PM
Druid Druid is offline
Senior Rider
Join Date: Aug 2011
Location: Chicago, IL
Posts: 357
Default

Looking for a tuner is a good idea... From the brief searching I did online it looks like the most likely spot for one is under and behind the seat, kinda hidden behind the rear mud-guard. Maybe a flashlight and mirror will be the key to seeing it!
__________________

2004 Softail Deuce - Limited Edition Paint 115/150
http://www.hdforums.com/forum/softai...ml#post8858100
Reply With Quote
  #7  
Old 03-13-2012, 04:05 PM
Harley_Dude's Avatar
Harley_Dude Harley_Dude is online now
Ultimate HDF Member
Join Date: Jul 2007
Location:
Posts: 5,075
Default

Quote:
Originally Posted by AtkRWC View Post
Don't rely on a dyno run...crappy 95 kit and your not making power. Cam upgrade and tune/carb upgrade on a 88 and your in the power. As others have said, no external diff. A lot of 95s are just bored 88s. Gotta take the heads off and measure the bore. Maybe if the piston tops were marked, could use a borescope, don't think so.
I have some 95 pistons and they are marked on top, but how long until they are covered by carbon and unreadable.
__________________


I do mind, the Dude minds. This will not stand, ya know, this aggression will not stand, man.
Reply With Quote
  #8  
Old 03-13-2012, 05:49 PM
dyna rider's Avatar
dyna rider dyna rider is offline
Club Member
Join Date: Dec 2007
Location: Knoxville, Tn
Posts: 2,720
Default 95 Cu In

If the cams have been replaced with higher lift cams and the exhaust has also been changed, then sometimes you can tell by the sound that it is hitting a better lick. That usually comes from higher compression pistons along with cams, but on a stock 95" bike you will never hear it.
__________________
Dyslectics Of The World, Untie
Reply With Quote
  #9  
Old 03-13-2012, 06:36 PM
Sshock11's Avatar
Sshock11 Sshock11 is offline
Hang Around
Join Date: Feb 2012
Location: Fort Worth, TX
Posts: 24
Default

What is the cost associated with doing this big bore kit?
__________________
Reply With Quote
  #10  
Old 03-13-2012, 09:58 PM
dyna rider's Avatar
dyna rider dyna rider is offline
Club Member
Join Date: Dec 2007
Location: Knoxville, Tn
Posts: 2,720
Default Big Bore Kits

When I had mine done in winter 06/07 they were running a special because the 96s had just come out. I had some different parts put on mine but they were doing them for 400.00. Thats with low compression pistons and new (to you) jugs. They kept your old jugs to bore out.
__________________
Dyslectics Of The World, Untie
Reply With Quote
Old 03-13-2012, 09:58 PM
 
 
 
P
Reply

Tags
88, 95, big, bore, davidson, dyna, gains, gig, harley, hd, hydrosolid, jims, kit, kits, lifters


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off
Forum Jump

Advertising
Featured Sponsors
Vendor Directory
Sponsors
All times are GMT -5. The time now is 10:41 AM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.5.2

Admin, Emails & Contact Details