Choosing a cam - 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
  #1 (permalink)  
Old 04-20-2008, 02:46 AM
Registered User
 

Last journal entry: My ride
Last photo:
Join Date: Feb 2008
Location: Ringgold
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Choosing a cam

could anyone recommend a good cam and intake. I have a 400 SB chevy .30 over with standard dish pistons. 5 speed tranny and a 3:08 ring gear. Thanks
Reply With Quote
  #2 (permalink)  
Old 04-20-2008, 05:11 AM
Registered User
 
Last photo:
Join Date: Mar 2008
Location: Arkansas
Age: 50
Posts: 284
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Something along the lines of a 268/454 lift Competition cams, sounds ok.
Reply With Quote
  #3 (permalink)  
Old 04-20-2008, 06:10 AM
Stroke Meister
 
Last photo:
Join Date: Mar 2007
Location: MI, USA
Posts: 704
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What cylinder heads? What type of cam are you interested in, a Hydraulic or Solid Flat Tappet, Hydraulic or Solid Roller. What do you want this motor to do and what will you use it for? If it's a grocery getter I'd say hydraulic flat 218*-240*/480-525 lift 110-114 air-gap type dual plane. If you want more rumpitty-rump and all of that I'd find a solid flat 'bout 240*/250* and 525*550 on a 106-110 maybe a dual but prolly should single plane. Of course, if your heads are up to task and fit the bill, you could go roller either way... maybe be more specific. JMO
Reply With Quote
  #4 (permalink)  
Old 04-20-2008, 07:47 AM
Member
 
Last photo:
Join Date: Nov 2004
Location: Lakeland FL
Age: 64
Posts: 4,110
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
all of the cam grinding companies have a "cam help hotline" on their web sites....(isky/crane/lunati/comp/howards/etc/etc)

contact 5 of them then analyze/question each for why they recommended whatever

my $.02
leave the cam and motor alone....
swap to lower gears for alot more fun at ALL rpms...not just at peak HP rpms with a cam change...

400ft/lbs x 3.08 gears=1232ft/lbs twisting the tires
400ft/lbs x 3.55 gears =1420ft/lbs twisting the tires=15% more acceleration force
Reply With Quote
  #5 (permalink)  
Old 04-20-2008, 09:34 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 27
Posts: 6,942
Wiki Edits: 0

Thanks: 5
Thanked 80 Times in 76 Posts
cams can and will add more torque too... especially when swapping from a stock one...
Reply With Quote
  #6 (permalink)  
Old 04-21-2008, 12:56 PM
Registered User
 

Last journal entry: My ride
Last photo:
Join Date: Feb 2008
Location: Ringgold
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
im running a set of double hump 63CC heads, not sure about valve size. I would prefer running a hydraulic cam
Reply With Quote
  #7 (permalink)  
Old 04-21-2008, 01:26 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 8,159
Wiki Edits: 0

Thanks: 0
Thanked 173 Times in 171 Posts
Isky #201271 270 Megacam. Use Isky#205D valve springs.
Isky cam timing specs Degree in this cam on a 104 intake C/L.
Reply With Quote
  #8 (permalink)  
Old 04-21-2008, 01:42 PM
Registered User
 
Join Date: Apr 2006
Location: Redondo beach ,CA
Age: 32
Posts: 335
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
what compression ratio?
Reply With Quote

Recent Engine posts with photos


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

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cam Selection and Dynamic CR Arcuden Engine 10 03-23-2008 11:03 AM
I need cam help 355s10 Engine 7 03-16-2008 05:34 PM
IGNITION and CAM TIMING sum87mustang Engine 3 07-11-2003 07:52 PM
choosing a cam 85 regal Engine 2 11-21-2002 11:53 AM
Roller Cam Help!!! Vsanthos Engine 13 10-31-2002 04:29 PM


All times are GMT -6. The time now is 03:58 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.