Piston to Wall Clearance - Dodge Cummins Diesel Forum
- HOME - FORUMS - GARAGE - TECH - ARTICLES - CHAT - CLASSIFIEDS - REVIEWS - VIDEOS - MEMBER MAP - STORE - INSURANCE -
- REGISTER - CALENDAR - INFO - SITE HELP - RULES - STAFF - MEMBERSHIP - ADVERTISE - CONTACT US -


Welcome to the Dodge Cummins Diesel Forum, the fastest growing Dodge Diesel Community on the internet.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us
Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 94-98 12V Forums > 94-98 Performance Parts Discussion
94-98 Performance Parts Discussion Discussion of Performance Parts For the 94-98 Trucks No Advertising ...NO ADVERTISING

CumminsForum.com is the premier Dodge Diesel Truck Forum on the internet. Registered Users do not see the above ads.

Auto Insurance

» Featured Product
Wheel & Tire Center

Closed Thread
 
LinkBack Thread Tools Display Modes
Old 01-31-2012, 09:28 PM   #1 (permalink)
Newbie
 
12v Thunder's Avatar
 
Join Date: Mar 2011
Location: Pennsylvania
Posts: 29
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Piston to Wall Clearance

I am in the process of rebuilding my 12v and was wondering if it would be alright to run extra piston to wall clearance if i am only planing on 400-450hp. I know that this is a common thing to do to high horse engines but am unsure if it is a good idea with only moderate hp increase. As I understand it, the amount of boost you are pushing plays a big role in how much extra clearance to bore for. How much boost would I need to make to still get the proper ring pressure? Currently my bores are sitting towards the high end of spec and I was planing on using standard sized pistons. I guess the biggest thing that I am concerned about is having too much clearance and then having a ton of blow by.

Any advise is appreciated
__________________
1995 2500 RCLB, Complete Overhaul at 268k, 4K GSK, 2095 Rack plug, AFC Tuning, 60HP Tork Tek OFV, AirDog DF 100, DDP Stage 2 Injectors, Colt Cam Stage 3, O- Ringed Head, ARP Head Studs, ARP Main Studs, S300GX, BHAF, 5 Speed Swap, South Bend DD, 3.54's, KDP, 17* Timing
12v Thunder is offline   Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-01-2012, 11:23 AM   #2 (permalink)
Cummins Fanatic
 
BrainChild's Avatar
 
Join Date: Apr 2011
Location: Canada
Posts: 176
Thanks: 14
Thanked 14 Times in 11 Posts
iTrader Score: 0 reviews
meh... slap it together and run it.... least you dont gotta worry about a loose motor blowing up on ya...
__________________
96-CCLB-5spd-DD Valair-fresh 12v-155* bowls-180pump-stock sticks-7mm SDX-2095-A1's-P&P manifold/Gasketmatched Head-Custom Fuel/Dual Feed-7" lift-Lockout Hubs-5" stack-HE351/S475 twins
BrainChild is offline   Quick reply to this message
Old 02-01-2012, 01:30 PM   #3 (permalink)
Diesel Head
 
renopker's Avatar
 
Join Date: Aug 2007
Posts: 2,046
Thanks: 9
Thanked 226 Times in 178 Posts
iTrader Score: 1 reviews
What does the bore measure? front to back & side to side , do it at the top and bottom. the most important thing is round and straight. If you can hone it with a ridged hone and make it round in the same .002. So if the smallest is 4.016 and the largest is .018 hone it to .018 The .002 side clearance wont matter and the rings will like the bore better.
__________________

I love pigs, they turn vegetables in to Bacon
renopker is offline   Quick reply to this message
Old 02-01-2012, 09:09 PM   #4 (permalink)
Newbie
 
12v Thunder's Avatar
 
Join Date: Mar 2011
Location: Pennsylvania
Posts: 29
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
The bores are within .0005 roundness so i am not concerned with that the only thing wrong with the bores is there is a ridge worn by the rings. I might try just honing till that disappears- probably only .001 bigger than spec.
__________________
1995 2500 RCLB, Complete Overhaul at 268k, 4K GSK, 2095 Rack plug, AFC Tuning, 60HP Tork Tek OFV, AirDog DF 100, DDP Stage 2 Injectors, Colt Cam Stage 3, O- Ringed Head, ARP Head Studs, ARP Main Studs, S300GX, BHAF, 5 Speed Swap, South Bend DD, 3.54's, KDP, 17* Timing
12v Thunder is offline   Quick reply to this message
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:33 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

SEO by vBSEO 3.3.2