compression - 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
  #1 (permalink)  
Old 08-23-2002, 03:09 PM
cc69's Avatar
Member
 
Join Date: Aug 2002
Location: Indiana
Posts: 33
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post compression

What is the highest compresion you can have on pump gas 93 octane, using aluminum heads?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-23-2002, 04:00 PM
bullheimer's Avatar
NEVER use credit cards!
 

Last journal entry: car with tt2's, (stockers going back on)
Last photo:
Join Date: Jan 2002
Location: North of Seattle
Posts: 2,532
Wiki Edits: 0

Thanks: 0
Thanked 6 Times in 5 Posts
Post

FLAT TOPS WITH A 76CC IRON HEAD = 9.2:1 AND I RUN REGULAR CRAPPY GAS. ALUMINUM HEAD=HIGHER COMPRESSION, HIGHER OCTANE=HIGHER COMPRESSION. SO TO ANSWER YOUR QUESTION. I DUNNO! THE BETTER TUNER YOU ARE THE BETTER YOU CAN TWEAK YOUR FUEL/AIR MIXTURE THE HIGHER YOU CAN RUN. PS IF YOU LIVE IN CALIFORNIA YOUR GAS AINT 93, IT AINT 92, IT'S GONE DOWN TO 91!!!

12.8:1 AND HIGHER IF ALCOHOL E-85 FUEL (85%ALKY, 15%GAS- OVER 100 OCTANE) IS USED. GOT CORN SQUEEZINS? (COURSE THIS AINT 93 OCTANE NOW IS IT?)
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-23-2002, 06:18 PM
Registered User
 
Join Date: Aug 2002
Location: SD
Posts: 6
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

i was told notto count on 93 gas. Sometimes it might be 93 but the next time it might be darn close to the same as regular.

i was told 9.5 with iron heads so probably a bit more than that.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-23-2002, 07:04 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 35
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

At approx 9.5:1 w/ iron heads my motor,as of this year pings like no tomarrow above 3000revs.The gas is getting worse it ain't 93 no more but you pay for it.I've been usin Cam2 w/ 93 in a 25%Cam2/75% 93oct mix(well close to that ratio).The Sunoco 94 is the next best,but still sucks.Or you can retard the timing and have a detonation free Slug.So w/ iron heads I'd say no more than 9-9.2:1
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:
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



All times are GMT -6. The time now is 07:08 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.