NPI and PI?
02-27-2007, 02:09 AM
#2
3rd Gear Member
Join Date: Apr 2006
Location:
Posts: 908
RE: NPI and PI?
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
02-27-2007, 02:23 AM
#3
4th Gear Member
Join Date: Apr 2006
Location:
Posts: 1,362
RE: NPI and PI?
ORIGINAL: GTMustang6921
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
02-27-2007, 12:48 PM
#4
5th Gear Member
Join Date: Jan 2005
Location:
Posts: 2,616
RE: NPI and PI?
ORIGINAL: RipTide7
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
02-27-2007, 01:44 PM
#5
2nd Gear Member
Thread Starter
Join Date: May 2006
Location: CT
Posts: 323
RE: NPI and PI?
ORIGINAL: Hash06
not to be rude but how do you have over 200 posts and still not know the diffrence between NPI and PI
ORIGINAL: GTMustang6921
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
02-27-2007, 02:06 PM
#6
5th Gear Member
Join Date: Mar 2005
Location: Navarre, FL
Posts: 3,689
RE: NPI and PI?
ORIGINAL: GTMustang6921
I knew that NPI was in the sn95 body's and that PI were in the edge bodystyle....i just didnt know the difference.
ORIGINAL: Hash06
not to be rude but how do you have over 200 posts and still not know the diffrence between NPI and PI
ORIGINAL: GTMustang6921
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
may be a dumb ? but i bet a bunch don't know....whats the diff between PI and NPI and what do they mean? There heads to right?
02-27-2007, 03:19 PM
#8
4th Gear Member
Join Date: Oct 2006
Location: Wilmington, Delaware
Posts: 1,565
RE: NPI and PI?
ORIGINAL: Zoie_daGT
That is correct. A nonPI head can only have cams 0.500 while the PI heads can be up to 0.550. The PI intake has an aluminum crossover to prevent cracking. The nonPI intake is very prone to cracking. The heads are as said, really restrictive. If you go to PI heads, you will also raise your compression abotu 1 point. Those are the main differences between nonPI and PI parts.
ORIGINAL: RipTide7
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
02-27-2007, 03:25 PM
#9
4th Gear Member
Join Date: Oct 2006
Location: Wilmington, Delaware
Posts: 1,565
RE: NPI and PI?
ORIGINAL: RipTide7
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
02-27-2007, 03:29 PM
#10
Underboss
Join Date: Jan 2006
Location: Helaware
Posts: 20,273
RE: NPI and PI?
ORIGINAL: 00TropicGreenStang
You get like 45 hp at the crank.
ORIGINAL: RipTide7
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.
96-98 mustangs ar non pi, this means that they have restrictive heads, intake manifold, and mild cams. The 99+ mustangs ar pi (performance improved). A PI swap is replacing the npi heads intake and cams with pi parts. This gives about a 50whp gain.