Ready to test her yet? - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 10-23-2019, 06:59 PM Thread Starter
 
Join Date: Jun 2019
Location: Larkfield, Ca
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Ready to test her yet?

Just completed a rebuild of my 65 389Tri. New Butler Performance parts with Ross forged to spec pistons. Went through the standard 200 mile back road accel / decel, cahnged oil and filter, then another 100 miles for a total of 300 now. Did some freeway test for acceleration and was impressed. My question is for those who have traveled this road, when is it safe to let it all out and see what she can do?
Sonoma GTO is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 10-24-2019, 08:18 PM
 
PontiacJim's Avatar
 
Join Date: Dec 2012
Location: Gastonia, NC - Born & raised in Connecticut - 31 years
Posts: 3,724
Mentioned: 1 Post(s)
Tagged: 1 Thread(s)
Quoted: 403 Post(s)
Garage
Quote:
Originally Posted by Sonoma GTO View Post
Just completed a rebuild of my 65 389Tri. New Butler Performance parts with Ross forged to spec pistons. Went through the standard 200 mile back road accel / decel, cahnged oil and filter, then another 100 miles for a total of 300 now. Did some freeway test for acceleration and was impressed. My question is for those who have traveled this road, when is it safe to let it all out and see what she can do?
I would not baby the engine, but I would not push it to its limits either - maybe keep it below 5,000 RPM's for another 1,000 miles. Sounds like you already did the accel/decel procedure and that is probably the most important in seating rings - which is really all you have to worry about.

If me, with the miles you now have on it, go back and retorque some of the bolts. Often you will have the no-torque type head gaskets, but it might not hurt to re-torque them anyway. You could contact Butler for their suggestions. But, I would check the intake bolts, exhaust bolts, & carb stud nuts as these seem for me to be the ones that will loosen up on you.

In any case, I would repeat the accel/decel cycle another time after the fresh filter/oil change and think you should be good to go.
PontiacJim is offline  
post #3 of 3 (permalink) Old 10-25-2019, 05:57 PM
 
GTO44's Avatar
 
Join Date: Apr 2016
Posts: 347
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
Drive it like ya stole it. You’ve got way more miles than i typically put on new motors. There’s nothing wrong with waiting till 1k miles or more. There’s also nothing wrong with doing full redline pulls at you’re current state.

My race motors have 3 warmups before they either go on the dyno or go to the track. For street driving and longevity you were right to do the break in procedure you’ve done. Now go see what that bad boy will do 🙂

2006 GTO M6

Motor - Stock with Vararam
Bunch of suspension
Bunch of brakes
Stock tune

365/368 std
12.81 @ 110.6 2.03 60'
GTO44 is online now  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Engine Discussions

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



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