NPI cam ?

[blackink00]

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]

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

 

[blackink00]

anybody else

 

[Dusstbuster]

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]

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

 

[blackink00]

any other ideas. just want to know for sure

 

[96BlueStangGT]

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

 

[96BlueStangGT]

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]

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

 

[Dusstbuster]

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

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

 

[RedDaemon]

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

actually they just about found a cure for ebola

 

[COramprat]

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.

 

[TGJ]

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.