RPM,Redline - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 04-03-2016, 09:14 PM Thread Starter
CPL
 
Join Date: Feb 2016
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
RPM,Redline

Does anyone know what a 65 lemans, 326, 2 speed st300 autotrans redlines at?
CPL is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 04-04-2016, 08:17 AM
 
Join Date: Mar 2016
Location: aurora, colorado
Posts: 116
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
when it quits pullin'

on a more serious note, most all cars from that era will suffer lifter pump up before they reach a potential harmful rpm. ...you can feel the car flatten out and quit accelerating....the rpm depends on the amount of pre-load on the lifters....a guess would be 5000-5500 rpm, though it could be less....also the duration of a stock 326 cam will not allow a lot of rpm....
john23 is offline  
post #3 of 7 (permalink) Old 04-04-2016, 11:00 AM Thread Starter
CPL
 
Join Date: Feb 2016
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
good to know thanks my engine was actually recently rebuilt with a mild cam bored 30 over ARP bolts I was just kind of curious what the stock one ran and figured I could go from there because with the two speed automatic transmission it is a high RPM running engine I hope I said that correctly
CPL is offline  
 
post #4 of 7 (permalink) Old 04-04-2016, 01:55 PM
 
Join Date: Jan 2015
Location: Injun Territory, 'Merica!
Posts: 1,611
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 121 Post(s)
326 Pontiacs are not 350 horse 327 chebbies. The 326 Pontiac, even with a multi thousand dollar rebuild, and a "mild" cam and headers is not a top end.. take to the redline engine. The 326 is a small bore small displacement modest torque producing engine that produces modest HP up to about 4500 rpm. the small bore, small ports, small valves, matching valve springs, and cam all combine to limit any kind of power up top. Many decades ago HO Racing built a highly modded 326 for Modifed Production class drag racing in a '65 Tempest. Might do a web search, TOTAL different animal, nothing streetable about it.

Last edited by Pinion head; 04-04-2016 at 02:14 PM.
Pinion head is offline  
post #5 of 7 (permalink) Old 04-04-2016, 02:21 PM Thread Starter
CPL
 
Join Date: Feb 2016
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
oh cool that's good to know I didn't really rebuild this engine for drag racing it's more for cruising original numbers matching engine transmission car hopefully in the long run it's going to make it worth a little more money as I'm keeping it as stock as possible original other than having it rebuilt which It's Already Done have about 500 miles on it at this time
CPL is offline  
post #6 of 7 (permalink) Old 04-05-2016, 04:11 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,541
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
The 389-400 redlined at 5200. The 326 would be at or slightly below that. What pinionhead said is right on: the way a 326 was designed, max power would probably be around 4800-5000 rpm max. Torque is what makes these motors so great....and that comes in lower down in the rpm range.
geeteeohguy is offline  
post #7 of 7 (permalink) Old 04-05-2016, 04:29 PM
 
Join Date: Mar 2016
Location: aurora, colorado
Posts: 116
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
sure no problem, glad to help
john23 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO 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:
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Redline Tires 19sixty5 1964-1974 Tempest, Lemans & GTO General Discussion 4 01-04-2012 06:54 PM
Redline vs Rally I's Purple Haze 1964-1974 Tempest, Lemans & GTO Wheels & Tires 2 04-24-2011 02:53 PM
6.3 L V8, 500 hp at 5200 rpm and 500 lb-ft of torque at 5000 rpm Scissors Service, Maintenance and Technical Discussion 3 08-19-2004 01:27 PM

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

 
For the best viewing experience please update your browser to Google Chrome