Carb Recommendations? - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 02-04-2007, 10:05 AM
stepside454's Avatar
Member
 
Last photo:
Join Date: Dec 2003
Location: St. louis area
Age: 47
Posts: 1,074
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 71C10
BG's Road Demon would be better for 5500 RPM and below, unless your cam has 220 or more duration, as per their recommendation.
BG Link.
Yep Agreed

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 02-04-2007, 12:53 PM
curtis73's Avatar
Hates: Liver. Loves: Diesel
 
Last wiki edit: How to find cheap parts
Last journal entry: 1999-2001: Getting it on the road
Last photo:
Join Date: Dec 2005
Location: Carlisle, PA
Age: 40
Posts: 5,151
Wiki Edits: 16

Thanks: 2
Thanked 5 Times in 5 Posts
Quote:
Originally Posted by mattson70
VE, is that volumetric efficiency?
Yep. Its a representation of how much the cylinders actually fill compared to their volume. A 5500 rpm engine probably is around 85% VE.

A Qjet would be a great choice. They are rated at 750 or 800, but they have secondary air doors that only open as much as the engine needs. That's why the same basic carb was installed on everything from V6s up to the Caddy 500. They're a great way of making sure you have enough carb without getting too much.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 02-04-2007, 01:15 PM
71C10's Avatar
U.S. Army Retired
 
Last photo:
Join Date: Sep 2005
Location: Texas
Posts: 266
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by mattson70
VE, is that volumetric efficiency? So, buying a 750 cfm carb to put on a motor that eats only 600 cfm at 100% VE is probably a waste of money? Thanks for the help.
Like Curtis said, look at the picture of the 388 dyno sheet. The column "Air 1 scfm" is the measured amount of air passing through the carb at each RPM step.
Attached Thumbnails
Click image for larger version

Name:	388 dyno.jpg
Views:	143
Size:	73.1 KB
ID:	18193  
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
backfire thru carb airraptor Engine 11 06-12-2009 02:30 PM
700 R4 tv cable hook up at carb murrsue Transmission - Rearend 4 10-18-2006 09:50 AM
Holley Carb. Question crusherdbuzz Engine 2 07-02-2006 03:25 PM
Holley carb has me at wit's end cool rockin daddy Engine 23 06-02-2005 02:38 PM
Need some pointers on Holley carb crshrmn3 Engine 2 02-08-2003 11:22 PM


All times are GMT -6. The time now is 08:41 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.