Pi Cams In Non Pi Heads - 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 > Modular Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto EscrowInsurance

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 01-23-2007, 10:13   #1 (permalink)
Registered User
 
Join Date: Jan 2007
Posts: 4
Question Pi Cams In Non Pi Heads

Can You Upt A Set Of Pi Cams In Non Pi Heads

And If So Is There Any Modificiations Needed Or
Special Treatment Have To Be Done????

THIS IS A 97 4.6L
SINGLE CAM
scottyfireman is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-25-2007, 07:18   #2 (permalink)
00gtr1
 
Join Date: Dec 2006
Location: Omaha, NE
Age: 33
Posts: 83
Re: Pi Cams In Non Pi Heads

I don't think the cams are different, the difference is in the combustion chamber, and intake ports. You would gain more horsepower in your 97 by swapping PI heads on your engine and not just the cams.
00gtr1 is offline   Reply With Quote
Old 01-25-2007, 07:19   #3 (permalink)
Registered User
 
Join Date: Jan 2007
Posts: 4
Question Re: Pi Cams In Non Pi Heads

How Much Do You Gain Just With The Cams???
scottyfireman is offline   Reply With Quote
Old 01-25-2007, 07:23   #4 (permalink)
00gtr1
 
Join Date: Dec 2006
Location: Omaha, NE
Age: 33
Posts: 83
Re: Pi Cams In Non Pi Heads

Its not the CAMS that are diffeent. its the HEADS that are different. You won't gain any thing with just a cam swap.
00gtr1 is offline   Reply With Quote
Old 01-25-2007, 07:57   #5 (permalink)
Registered User
 
Join Date: Jan 2007
Posts: 4
Re: Pi Cams In Non Pi Heads

O I See

From What I Have Been Reading They Said The Cams There Self Was Supposed To Be Worth Like 15 To 20 Hp....

Do You Know Where I Could Find The Specs For These Cams????
scottyfireman is offline   Reply With Quote
Old 01-25-2007, 08:25   #6 (permalink)
Registered User
 
Join Date: Jan 2007
Posts: 4
Re: Pi Cams In Non Pi Heads

OK HERE IS WHAT I HAVE FOUND.........


NON PI-----

1996 4.6 SOHC 215HP Mustang Engine
Throttle body: 65mm (2.559 inches)
Intake manifold: composite, cast No. F6ZE-CG

Cylinder heads: cast No. RF-F5AE-AE

Combustion chambers: 49.77cc

Valves: 1.752/1.339 inches

Rockers: roller type, w/1.80:1 ratio

Camshaft lift: .473/.473-inch lift

Compression ratio: 9.30:1

Pistons: hypereutectic w/.153-inch dish




PI----


1999 4.6 SOHC 260HP Mustang Engine
Throttle body: 66.8mm (2.630 inches)

Intake manifold: composite, cast No. XR3E-DC

Cylinder heads: cast No. RFXL3-CZOD

Combustion chambers: 42.40cc

Valves: 1.752/1.417 inches

Rockers: roller type, w/1.80:1 ratio

Camshaft lift: .505/.534-inch lift

Compression ratio: 9.30:1

Pistons: hypereutectic w/.188-inch dish


SO THERE IS A LITTLE DIFFERANCE THEN IN THE LIFT...
scottyfireman is offline   Reply With Quote
Old 01-25-2007, 11:39   #7 (permalink)
00gtr1
 
Join Date: Dec 2006
Location: Omaha, NE
Age: 33
Posts: 83
Re: Pi Cams In Non Pi Heads

So I seemed to eat my own words. I checked my Ford manuals and found the same info you have found. But ask any engine builder the cam spec that gives you power is cam duration. ( how long the valve is open) that's were the power is. I work for ford and they do not print the duration so I'm not sure. But do you see the combustion chamber spec you wrote down the PI heads actually have a smaller combustion chamber that's were ford got the extra power compared to 1996 to 1998 engines. Now like I said If you were to put these heads on your engine you'll see an extra 40 to 60 horsepower because the 96-98 engines have flattop pistons and the 99-up engine have dish-type pistons. So your engine would benefit from bigger intake ports and a raised compression ratio. Sorry for being short earlier.
00gtr1 is offline   Reply With Quote
Old 02-09-2007, 09:37   #8 (permalink)
Registered User
 
Join Date: Feb 2007
Posts: 7
Re: Pi Cams In Non Pi Heads

I'm pretty new to the mod engines but I would think that installing PI heads on a non-PI motor would raise the compression ratio since it would have the small chamers, with less dished pistons. So would you have to run higher grade gas to prevent pinging or would it cause any other problems? To get a good combo, seems like you would have to change the pistons too.
shanescrownvic is offline   Reply With Quote
Old 11-01-2007, 23:00   #9 (permalink)
Registered User
 
Join Date: Nov 2007
Posts: 1
Re: Pi Cams In Non Pi Heads

I recently read about a build-up using a non-pi engine using some SHM ported pi heads and comp-cams and making over 400 hp
WIWAC 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 > Modular 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 04:07.



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.