Knock retard - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 07-04-2010, 11:52 PM Thread Starter
Junior Member
 
twentytenSS's Avatar
 
Join Date: Jul 2010
Posts: 2
Knock retard

Brand new cobalt, 500 miles on it. Sales guy told me i could run 87 octane, so i did for a tank and noticed up to 5 degree's of retard around peak torque, 3000ish rpm. Would this be do to the torque learn down thing i read about or do I have a problem? I filled it up with 94 octane now, and it still gets up to 3-4 degree's of knock retard around WOT @ 3000ish rpms then it goes away once i get up to 4500rpm-6000rpm. Any help would be appreciated.

Oh, and car is 100% stock. The mods in sig haven't been installed yet.

2010 Cobalt SS, Trifecta tune, clear image CAI, clear image DP.
twentytenSS is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 07-05-2010, 02:10 PM
Super Moderator
 
skoal*boy's Avatar
 
Join Date: Aug 2008
Location: Fort Bragg NC
Posts: 1,639
Garage
well the guy that told you to run 87 in it is not very smart. There are high out put motors and should only be useing 93.. Add some octane booster to it for the next few tanks til all that 87's out.

I was beat by RKRamos.
skoal*boy is offline  
post #3 of 3 (permalink) Old 07-05-2010, 06:01 PM
Contributing User
 
Mentalm's Avatar
 
Join Date: Mar 2010
Location: MD
Posts: 480
Garage
i switch off between 91 and 93 havnt had an issues :/ gas stations are next to each other 1 day this ones 3 cents cheaper other days the other is lol im cheap haha . last gas i got was ehh 2 weeks ago paid 2.75 for 93 cheap as hell compard to the 3.01'sat the rest of the stations in my area well not cheap as hell but u know what i mean saying theres 6 within a squar block lol
Mentalm is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums 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










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
Retard dads showing off for their sons! bluebeast Cobalt SS vs. All 8 02-08-2007 04:58 PM
How much Knock do you get and at what Boost level and RPM? denny Performance Modifications 42 08-17-2006 10:53 AM
Knock ... jmc007 Performance Modifications 1 01-01-2006 04:58 PM
Knock?? Drewfu$ General Discussion 8 09-21-2005 10:43 PM
Some retard... Novajoe Cobalt SS vs. All 21 07-28-2005 09:26 AM

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