Help with compression - MustangForums.com

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Help with compression

Reply

 
 
 
Old 03-31-2006, 11:12 PM
  #1  
tylerdru
4th Gear Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 1,841
Default Help with compression

Hi guys by the end of the week i will be buying a 302 short block. I can either get a mild setup or a high performance setup with a more aggresive cam, .030 over high compression pistons. My question is, would i have to use higher octane fuel for the engine or could i get AWAY with regular gas? By getaway with i mean only hurt the power and that is it.(none of the components.) I am gonna use cast iron heads with bigger valves too.
tylerdru is offline  
Reply With Quote
Old 03-31-2006, 11:19 PM
  #2  
OneGearhead
6th Gear Member
 
Join Date: Mar 2004
Location: VA
Posts: 5,866
Default RE: Help with compression

with higher compression, you need to run higher octane fuel. the more compression there is, the more heat there is, which in turn tend to ignite the air/fuel mixture sooner than it would regularly which gives you "knock" or "preignition". which is BAD in ANY ENGINE.
OneGearhead is offline  
Reply With Quote
Old 03-31-2006, 11:20 PM
  #3  
tylerdru
4th Gear Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 1,841
Default RE: Help with compression

Could i just adjust the timing?
tylerdru is offline  
Reply With Quote
Old 03-31-2006, 11:22 PM
  #4  
OneGearhead
6th Gear Member
 
Join Date: Mar 2004
Location: VA
Posts: 5,866
Default RE: Help with compression

possibly, but may not be enough to keep it from knocking.
OneGearhead is offline  
Reply With Quote
Old 03-31-2006, 11:24 PM
  #5  
tylerdru
4th Gear Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 1,841
Default RE: Help with compression

Oh well premium is not that much more.
tylerdru is offline  
Reply With Quote
Old 03-31-2006, 11:26 PM
  #6  
OneGearhead
6th Gear Member
 
Join Date: Mar 2004
Location: VA
Posts: 5,866
Default RE: Help with compression

ORIGINAL: tylerdru

Oh well premium is not that much more.
YEAH, ok. its "only" $2.65 here. but, better than $3+....
OneGearhead is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
baddog671
Parts For Sale
20
07-26-2016 01:20 PM
uedlose
The Racers Bench
4
10-01-2015 08:31 PM
bconboy
2005-2014 Mustangs
16
09-21-2015 12:52 PM
uberstang1
Classic Mustangs (Tech)
6
09-20-2015 06:42 PM
1st 4 eyed fox
General Tech
2
08-24-2015 06:56 PM

Forum Jump

Thread Tools
Search this Thread
Advertising
Featured Sponsors
Vendor Directory