no title - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 01-14-04, 03:49 PM Thread Starter
Look! A flying orangutan!
Join Date: Mar 2003
Location: perth
Age: 32
Posts: 3,104
no title

Just curious as to whether there's some sort of magic equation to determine the best compression ratio for a certain level of boost?


Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes

Pacemaker headers + 2.5" exhaust
EF Fairmont interior
MP3 player
Lowered King springs
5 speed manual
EF motor

Newest mod: EF Ghia wiring loom and dash
mongrelEB is offline  
Sponsored Links
post #2 of 3 (permalink) Old 01-15-04, 01:55 AM
Two SC 61's = trouble
ebxr8240's Avatar
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 62
Posts: 6,360
Re: no title

Hmm that depends.. Like 4 valve motors can get away with heaps of compression.
But as a rule of thumb under 9 to 1 0ver 10 Lp imo...Unless you have good management and fuel is up to it etc....

Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline  
post #3 of 3 (permalink) Old 01-15-04, 02:13 AM
Registered User
Join Date: Jul 2003
Location: Gold Coast
Posts: 529
Re: no title

Ray Hall Turbocharging has a few online calculators you might find helpful. I think the site is

Also while you there check out the turbocharged boats :)

Last edited by not ford; 01-15-04 at 02:19 AM.
not ford is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Superchargers | Turbos | N2O
Gear in this thread - Powered by O'Reilly Auto Parts

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ford to become title sponsor of PGA Tour event in Miami Stacy94PGT Ford Worldwide News 0 10-02-02 07:51 AM
Nascar title goes to GM( another one lost) HSE2 Ford Racing Across the Globe 14 11-25-01 11:48 PM
Kostya Tszyu wins IBF title Cobra The Pub 14 11-05-01 05:58 AM
Ford Chase World Rally Title in Perth RPO83 Ford Racing Across the Globe 2 11-01-01 06:30 AM
"Fuel Saver" title? maz637 Ford Tempo Forum | Mercury Topaz Forum 4 07-23-01 09:09 PM

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

For the best viewing experience please update your browser to Google Chrome