Max Compression ratio Cast Iron head 4 V on 98 Octane - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-11-2009, 17:46   #1 (permalink)
Registered User
 
Join Date: Jun 2006
Posts: 38
Max Compression ratio Cast Iron head 4 V on 98 Octane

Hi all,

Need some help please. This may have been covered before , if so can someone post the link?

I am planning my next Cleveland Stroker build using Cast 4V Closed chamber heads.

I need to know what that max Static comp ratio 4V cast headed engine will run with using 98 Octane fuel.

I have been using the Keith black Dynamic Comp calculator, and it is showing 11.6 static and 8.308 Dynamic with the setup/ cam I plan to use.

It consists of the following:

3.850 Eagle Crank
6.125 H Beams,
+ 30 Forged flat tops, 3 cc top volume, 1.065 Comp height
zero piston deck
0.040 Compressed head gasket, Gasket bore is 4.155
The heads are standard 64cc chamber.

Planning to run a manual trans too.

Thanks in advance for all help

Spazz
spazz is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-20-2009, 23:22   #2 (permalink)
Registered User
 
Join Date: Jun 2006
Posts: 38
Re: Max Compression ratio Cast Iron head 4 V on 98 Octane

Surely some one has an opinion or an idea?

Thanks

Spazz
spazz is offline   Reply With Quote
Old 03-24-2009, 15:46   #3 (permalink)
Registered User
 
Join Date: Mar 2009
Posts: 5
Re: Max Compression ratio Cast Iron head 4 V on 98 Octane

Hi,i built a 351c with 4v heads with .030 over flat top pistons a few years ago.It had at least 11.5 to 1 or more compression but cant remember exacly.It would run pretty good without pinging too much on high octane gaz but prefered it when i added octane boost or mixed some race gaz in the tank.Hope this helps
P.S.:I'm thinkink of building a 460 and running it on E85,that way i could boost the compression very high to get more power(E85 runs over 104 octane)just a tought,this might be a option if E85 is available in your area.
powerslide is offline   Reply With Quote
Old 03-25-2009, 00:52   #4 (permalink)
Registered User
 
Join Date: Jun 2006
Posts: 38
Re: Max Compression ratio Cast Iron head 4 V on 98 Octane

Thanks for the input,

Much appreciated.

Spazz
spazz is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 08:30.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.