NPI cam ?

blackink00

I missed a shift & stole Curt's money.

Mar 30, 2005

545

0

0

Tempe, AZ

Feb 23, 2007

#1

• Feb 23, 2007

• #1

i know you can put a PI cam in a NPI head but i was wondering if i could fit a VT stage 2 cam in an NPI head. thanks

 

four six

Member

Jan 19, 2006

506

2

18

Hobart, IN

Feb 24, 2007

#2

• Feb 24, 2007

• #2

I don't think you can from what I've heard but Im not sure.

 

blackink00

I missed a shift & stole Curt's money.

Mar 30, 2005

545

0

0

Tempe, AZ

Feb 24, 2007

#3

• Feb 24, 2007

• #3

anybody else

 

Dusstbuster

I love meat more than anything! I just have a spec

May 31, 2004

1,462

33

64

Moorhead, Minnesota

Feb 24, 2007

#4

• Feb 24, 2007

• #4

No you can't fit stage 2's in an NPI head. Stage 1's are pushing it I think, .550 lift is too much. (or whatever the numbers are)

 

RedDaemon

10 Year Member

Mar 31, 2005

3,470

9

108

Atlanta, GA

Feb 24, 2007

#5

• Feb 24, 2007

• #5

do u want to reverse ur placement of stg 1 and stg 2?

 

blackink00

I missed a shift & stole Curt's money.

Mar 30, 2005

545

0

0

Tempe, AZ

Feb 24, 2007

#6

• Feb 24, 2007

• #6

any other ideas. just want to know for sure

 

96BlueStangGT

Member

Jul 7, 2004

38

0

16

Southern Indiana

Feb 24, 2007

#7

• Feb 24, 2007

• #7

Someone else will have to help a little, but don't you just need Crower offset retainers in the NPI head to make them work. They give the spring height an extra .060".

 

COramprat

...I can take it. I think.

20+ Year Stangneter

Mar 2, 2003

8,474

1,463

223

Sea of Tranquility

Feb 24, 2007

#8

• Feb 24, 2007

• #8

I'm not sure what the specs are on the VT stage 2 but I know the Comp 268's work.

 

96BlueStangGT

Member

Jul 7, 2004

38

0

16

Southern Indiana

Feb 24, 2007

#9

• Feb 24, 2007

• #9

VT Stage 2 - .560/.575 lift - 225/235 dur.

268 NPI - .500/.500 - 230/236 dur.

The guys on MD know the exact answer your looking for.

 

blackink00

I missed a shift & stole Curt's money.

Mar 30, 2005

545

0

0

Tempe, AZ

Feb 24, 2007

#10

• Feb 24, 2007

• #10

thats alot of lift. i might have to wait a little longer till i get my pi heads

 

Dusstbuster

I love meat more than anything! I just have a spec

May 31, 2004

1,462

33

64

Moorhead, Minnesota

Feb 24, 2007

#11

• Feb 24, 2007

• #11

blackink00 said:

thats alot of lift. i might have to wait a little longer till i get my pi heads

Click to expand...

Bah screw the PI heads, P&P NPI heads > P&P PI heads > PI Heads > NPI Heads > Honda Civic > Ebola

 

RedDaemon

10 Year Member

Mar 31, 2005

3,470

9

108

Atlanta, GA

Feb 25, 2007

#12

• Feb 25, 2007

• #12

Dusstbuster said:

Bah screw the PI heads, P&P NPI heads > P&P PI heads > PI Heads > NPI Heads > Honda Civic > Ebola

Click to expand...

actually they just about found a cure for ebola

 

COramprat

...I can take it. I think.

20+ Year Stangneter

Mar 2, 2003

8,474

1,463

223

Sea of Tranquility

Feb 25, 2007

#13

• Feb 25, 2007

• #13

I don't have any personal tech experience with these cams but from research I've found that .550 lift is probably the limit for a PI head. Not sure about the NPI though. I would think it would be since the lift for the all of the Comp cams in an NPI head are .500. You would think that they had researched it to get the best performance possible without causing failures.

If the Stage 2 has that much lift I'd think you would have issue right away.

 

T

TGJ

New Member

Mar 30, 2005

1,049

4

0

Feb 25, 2007

#14

• Feb 25, 2007

• #14

In a short answer the VT cam will not work in a NPI head. Anything larger than .545 lift, the correct lift for the PI Comp cams is too much for a stock NPI head. You will require Crower offset retainers, good springs and some other things to make a cam with more lift than .545 work in a NPI head.