Powerglide and cam combo (Street-strip) - 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 12-06-2012, 03:24 PM
Registered User
 
Join Date: Jun 2012
Location: Riviere-du-Loup, province of Quebec in Canada
Posts: 23
Wiki Edits: 0

Thanks: 13
Thanked 1 Time in 1 Post
Thank you for your advice. I am going to speak about it to my friend mechanic. You helps me in my plan and, also, thanks a lot to techinspector1. I chose the 283THR7 Tumpr cam. So... with that setup, i should be satisfied. Thanks once again to all of you with your great knowledge.

Harold.

    Advertisement
Reply With Quote Quick reply to this message
The Following User Says Thank You to Coolrider For This Useful Post:
1Gary (12-07-2012)
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 12-10-2012, 01:51 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by Coolrider View Post
I know! My mecanic friend says the same good things about the 700r4 so... I wanted to keep my fact. powerglide but... It seems that i won't have choice to set with that transmission i think. He's a transmission specialist with great knowledge in race track setup and wants to build one for me.
The PG is not good for acceleration in a heavier car, but the top speed is not affected one way or the other- it has a 1:1 ratio in Drive, same as a TH350/TH400, etc. So the top end speed is going to be the same, or maybe a little higher due to less frictional losses.

Where you can have the better of both worlds is to use a TH2004R or TH700R4 like mentioned already. They need help if stock to hold up well to a performance engine, but it can be easily done- for a price. Even a properly built TH350 or TH400 would be better for acceleration than the PG.

The thing is, you can cam yourself out of being able to use OD unless the rear gear ratio is very low- like 4.56 to 4.88. A 4.88 rear gear would give you a 3.42:1 ratio in OD. A 4.56 gear = 3.19, and that is about as low as you can go w/a relatively big cam w/o bringing the engine rpm down so far that OD becomes useless.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 12-10-2012, 12:53 PM
1Gary's Avatar
Registered User
 

Last journal entry: 383 dyno sym
Last photo:
Join Date: Oct 2010
Location: Roch,NY
Age: 67
Posts: 1,538
Wiki Edits: 0

Thanks: 201
Thanked 156 Times in 142 Posts
I rarely post anything counter to Richard.I guess he is just answering the O/P's question.I does grade against me for any cam company to sell a cam for the "sound of it". It be begs the question what are we doing here??. Hate it.
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 12-10-2012, 01:12 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by Coolrider View Post
Thank you for your advice. I am going to speak about it to my friend mechanic. You helps me in my plan and, also, thanks a lot to techinspector1. I chose the 283THR7 Tumpr cam. So... with that setup, i should be satisfied. Thanks once again to all of you with your great knowledge.

Harold.
Hopefully your trans guy knows the ins and outs of the throttle valve (TV) linkage adjustment- this is uber critical to the transmission lasting and not self destructing right away. Links to info on setting a carb up to correctly operate the TV cable is here.
Reply With Quote Quick reply to this message
  #20 (permalink)  
Old 12-10-2012, 01:22 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by Coolrider View Post
Thank you for your advice. I am going to speak about it to my friend mechanic. You helps me in my plan and, also, thanks a lot to techinspector1. I chose the 283THR7 Tumpr cam. So... with that setup, i should be satisfied. Thanks once again to all of you with your great knowledge.

Harold.
Comp claims "...stock converter ok, best with 2000+ converter and gears...". I'd recommend at least 2500 stall and 3000 rpm stall would be even better if acceleration is important. The 2500 stall speed TC should be enough to keep it from pulling through the brakes at a stop sign.

Also, the distributor will need work to get enough initial timing w/o having too much mechanical timing. A stock distributor is just a starting point. Even an MSD distributor w/the black 18 degree advance bushing might not be enough. It's no big deal setting the distributor up, but it IS something that you'll definitely have to deal with before you're done.
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
What Is The Ultimate Street/Strip SBC Combo? (Updated) V8Guy427 Engine 5 04-04-2014 11:06 AM
454 street/strip cam select bigjohn.94 Engine 4 03-06-2012 08:25 PM
vortec 406 street strip cam help Big Reazon Engine 4 09-28-2011 10:10 PM
which cam for a street/strip 383 my87Z Engine 5 07-09-2011 02:43 PM
Whats The Ultimate Street/Strip Combo? V8Guy427 Engine 7 01-29-2004 07:09 PM


All times are GMT -6. The time now is 04:59 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.