Which 351W block - 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 09-02-2010, 03:03 PM
Registered User
 
Join Date: Aug 2010
Location: Alberton/South Africa
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hi there

Got some pictures already, , will take as I go along.

Will need to get some more instruments to take measurements, got a good virnear (spelling...) at least.

Stupid question, does anyone have a complete part list that I will need to buy considering my starting point (being block, crank and con rods).

Big thing now is to start compiling the shopping list.

E4AE - 84, AE=> originally in a car.

Carb: EDELBROCK THUNDER SERIES AVSŪ 650 CFM, CARBURETOR
Intake Manifold: Edelbrock RPM Air - GAP
Head: AFR with 2.02 valve -> note Piston with notch !
Ignition: MDI
Coil: MDI
Water Pump, Oil Pump, Fuel Pump: Edelbrock

Pistons: Ross or Keith Black or CE or JP (thinking high Comp)
Rings:
Bearings:
Oil pan/sump:
Tappet Cover: Black, Ford Racing:
Ignition leads:
Starter:
Altenator:
Air Filter: K&N
Bolt Kit: ARP

G

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 09-02-2010, 05:57 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,314
Wiki Edits: 326

Thanks: 838
Thanked 1,152 Times in 951 Posts
Any cam you bolt into the motor has an operating range of about 3500 rpm's. In other words, a cam might be effective from idle to 4200 or it might be from 1500 to 5000 or it might be 3000 to 6500 or it might be 4500 to 8000 or whatever. You are considering high compression. High compression requires a cam with more duration that will put it into the higher rpm range for effectiveness.

Although not scientific, I'll share some figures with you concerning the compatibility of static compression ratios and camshaft durations measured at 0.050" tappet lift...

8.00:1 SCR needs 185 degrees..500-4000 power range
8.25:1.................189..............650-4300 " "
8.50:1.................194..............800-4500 " "
8.75:1.................200..............900-4600 " "
9.00:1.................204............1000-4600 " "
9.25:1.................208............1200-5200 " "
9.50:1.................212............1600-5400 " "
9.75:1.................216............1800-5600 " "
10.00:1................221............2000-5800 " "
10.25:1................227............2400-6200 " "
10.50:1................233............2800-6400 " "
10.75:1................236............3000-6800 " "
11.00:1................240............3200-7000 " "
11.50:1................244............3400-7200 " "
12.00:1................248............3600-7400 " "

Like I said, this list is not definitive. I wrote it to provide an overview of what cam is needed with what static compression ratio and what the operating range will be with that cam and that static compression ratio. This will change some depending on engine size and camshaft type, lobe separation angle, etc., but generally it is better than what we have had to work with up to this point, which is nothing as far as I know.

Anyway, back to topic. You said you wanted to build high compression ratio. I just wanted you to see the ramifications of such a decision. Using a very high SCR requires quite a bit of cam to prevent running in detonation and quite a bit of cam changes the operating range of the motor out of the realm of street running and into the realm of a racing motor.

Last edited by techinspector1; 09-02-2010 at 06:06 PM.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 09-03-2010, 12:56 AM
Registered User
 
Join Date: Aug 2010
Location: Alberton/South Africa
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hi there
Thanks for the reminder, as you must have realized I totally forgot bout this little fact... was not planning a Cam change.

Will have to do some thinking, would prefer a power range low ... 1500 -> 5500/6000
i'd like to see around 400HP, maybe 450, hay of course 450 would be nice, i don't want to build a all to the max, they just end in tears sooner or later, be that because they exploded or there is no money left in the bank.

suggestions on cam.. maybe something from AFR to match the heads and what would you suggest piston and rings wise.
G
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 09-04-2010, 06:49 AM
Registered User
 
Join Date: Aug 2010
Location: Alberton/South Africa
Posts: 12
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
A question more on Parts/Brands.

Firstly: Does anyone have a pdf workshop manual for a 351W?

It is easy to see that if I want to buy a complete top end kit, pre selected by people allot more clever than me Edelbrock stands out.
Is there anyone else doing complete kits like Edelbrock?

Looked and seen the AFR heads/looks good,

Who is another good Head producer
Who is another good Intake Manifold producer

Everyone I've spoken to says Keith Black Pistons,
Most of the designs i've seen for around 400HP, all recommend a 9.5:1 compression Ratio for the 1500-6000RPM range.
Carb is pretty much either Edelbrock or Holley

G
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:
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
Long block short block fitted block what do opelitis5 Hotrodding Basics 4 01-10-2010 07:12 PM
Small Block to Big block pullies WakBordr7387 Hotrodding Basics 5 01-30-2007 01:35 AM
Engine ID crash Engine 10 10-01-2006 07:43 PM
what years are match for 94 351w block dptyscott Engine 2 07-26-2006 11:13 PM
I have a 351W small block 4v daves1969mach Hotrodding Basics 5 08-28-2004 10:57 PM


All times are GMT -6. The time now is 10:51 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.