PI Stage II heads or Super Charger?

GDawg

Founding Member

Mar 22, 2002

1,469

19

68

Nevada

Apr 3, 2005

#1

• Apr 3, 2005

• #1

I've sold my house and after I move my ass to another town I'm going to dump around $5K - $7K into my car.

Should I get some PI Stage II heads with an aggressive cam or just get a supercharger for my NPI engine? I only have 52K on my '98.

Whadda ya think?

 

DBMSTNG

I fantasize about it being BIG!

Founding Member

Apr 23, 2002

2,120

0

56

47

not quite here

Apr 3, 2005

#2

• Apr 3, 2005

• #2

for $7k, you can do both if you install them yourself.

 

Stang|ess

seeking cyber partner(s)

Oct 18, 2003

941

0

37

Hawaii

Apr 3, 2005

#3

• Apr 3, 2005

• #3

Build your bottom end first, then get PI heads. Not sure what PI Stage 2 heads are or cost

 

0

007

Founding Member

Jan 29, 2002

3,287

24

69

Broke

www.steeda.com

Apr 3, 2005

#4

• Apr 3, 2005

• #4

Heads first.

 

Sick96Stang

New Member

Aug 20, 2004

621

0

0

40

Gilbert, Arizona

www.cardomain.com

Apr 3, 2005

#5

• Apr 3, 2005

• #5

DBMSTNG said:

for $7k, you can do both if you install them yourself.

Click to expand...

Thats what I was thinking. Where are you looking to buy the heads from? If you have an NPI engine I wouldn't waste my money supercharging it. Not to mention if you do the heads first once u get the supercharger it will love the port and polished heads. Only problem with doing that is if u get cams you are going to want blower cams and I have heard that blower cams are not that great on N/A cars. Dont quote me on that and maybe somebody with a little more knowledge on that can shed some light. Personally I wouldn't do anything else to your car until you have the PI heads.

 

S

SSS281

Founding Member

Dec 27, 2001

2,236

0

46

43

Kutztown, PA

www.facebook.com

Apr 3, 2005

#6

• Apr 3, 2005

• #6

since u cant have both (compression too high on NPI bottom end with PI heads/cams) i would go with the blower

 

T

Timin

Founding Member

Jul 23, 2001

207

0

16

Houston

Apr 3, 2005

#7

• Apr 3, 2005

• #7

Taking out the swirl dams out of the heads should reduce your compression enough to supercharge it safely. The key thing is whether you want to build up you bottom end if you do the headswap/blower or both of these. Get the heads first if you are considering doing both.

-Karl

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Apr 4, 2005

#8

• Apr 4, 2005

• #8

Your best to build the bottom end, but if $5-$7K is all you've got to work with..... have the NPI heads ported, (since when ported they outflow stock PI castings anyway) not to mention will allow you to stick with the stock compression ratio and run in the 8-9psi range without worry. That will leave you a good base to start with and enough money left over for a nice centrifugal set up. You should easily see around 360-380hp at the wheels with a ported NPI/8-9psi set up.