 |
|
| Register | FAQ | Members List | Calendar | Search | Today's Posts | Mark Forums Read |
|
||||||
| Modular 4.6L Tech For all your 1996-2005+ 2V, 3V, and 4V modular motor needs. |
 |
|
|
Thread Tools | Display Modes |
05-17-2005, 07:26 PM
|
#1 (permalink) |
|
bikesrok
Join Date: Apr 2005
Location: miami, fl 305
Posts: 703
 |
PI ??npi???nonNPI?? wat does it all meannn
im lost on this npi pi non npi talk with the heads and intakes can i plz get sum info on this ....thanx guys
__________________
MIAMI VICE 
|
|
|
|
05-17-2005, 08:03 PM
|
#2 (permalink) |
|
Administrator
Join Date: Sep 2004
Location: Orlando,Florida
Posts: 7,200
|
NPI= Non Performance Improved heads <---(PI)
PI= Performance Improved heads non NPI='s who the heck knows. the 96-98 mustang gt's had NPI heads and intakes these flow alot less than PI heads and make the motor have crappy power. 99+ GT's have PI heads. these flow alot more air and thus gave the big HP jump rom 98 to 99 modles. same thing for intakes they are different for NPI and PI cars. you have to use the same intake with the same heads. But there are adaptor plates out that let you use the PI intake on non pi headed motors.
__________________
Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted   WOOO HOOOO! |
|
|
|
|
05-18-2005, 02:52 PM
|
#3 (permalink) |
|
bikesrok
Join Date: Apr 2005
Location: miami, fl 305
Posts: 703
|
thanks spike that cleared alot of ?? for me....
woo hoo i have pi heads lol<dork
__________________
MIAMI VICE
|
|
|
|
|
05-18-2005, 03:39 PM
|
#4 (permalink) | |
|
Secretary of Defense
Join Date: Apr 2005
Location: Akron, OH...5 Mins from Summit Racing
Posts: 355
|
Quote:
SUUUURE...just rub it in why don't ya! lol |
|
|
|
|
|
05-18-2005, 06:09 PM
|
#5 (permalink) |
|
bikesrok
Join Date: Apr 2005
Location: miami, fl 305
Posts: 703
|
lol didnt mean too
__________________
MIAMI VICE
|
|
|
|
|
05-18-2005, 07:34 PM
|
#6 (permalink) |
|
Member
Join Date: May 2005
Location: Richmond, VA
Posts: 77
|
So if 99-04 are PI heads, what is the difference in the intakes for 99-00? I have seen a replacement plastic intake.. What is the diff? Would it improve a 99-00?
__________________
2000 Convertible GT Installed: [size=1]- Steeda Tri-Ax, Steeda Underdrive Pulleys, Flowmaster 40 series weld-ins, Steeda Sport Springs, Tokico "Mach 1" struts/shocks, Steeda CAI, Dragon Plenum, Accufab 70mm TB, Steeda Strut Tower Brace, Grille Delete, xcal2 dyno tune 254.66 RWHP 297.80 TQ on 89 Octane |
|
|
|
|
05-18-2005, 07:40 PM
|
#7 (permalink) | |
|
Senior Member
Join Date: Mar 2005
Location: rapid city sd
Posts: 154
|
Quote:
|
|
|
|
|
|
05-19-2005, 12:02 AM
|
#8 (permalink) |
|
Administrator
Join Date: Sep 2004
Location: Orlando,Florida
Posts: 7,200
|
on early modle pi heads the intake doesnt have a metal crossover tube for the coolante the plastic part there ha s atendancy to break or crack and leak. the newer ones have a metal part there instead.
__________________
Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO! |
|
|
|
|
| Thread Tools | |
| Display Modes | |
Linear Mode
|
|
