pi intake and cam swap

9

98gtmustang64

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Apr 25, 2010

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Jun 15, 2010

#1

• Jun 15, 2010

• #1

im thinking bout doing this ive read some about it and it sounds pretty good but i dont no what all i need i want to get everything before i do it

 

N8Dogg98

15 Year Member

Apr 4, 2005

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Jun 15, 2010

#2

• Jun 15, 2010

• #2

I'll break it down as best as I can:

Cams - You'll need the new cams (make sure they are cams with the bolt on cam gear as opposed to the ones with the pressed on gear), new cam bolts from the dealer, assembly lube, RTV cement, c-clamp, and a vice grip.

Intake - PI intake gaskets, RTV cement (for sealing the coolant port on the NPI heads), new coolant tube and nipple for the 99+ stang (runs in the engine valley), new EGR gasket, and a new water pump o-ring.

The swap is really easy if you have someone to help. I swapped the cams without removing the front engine cover with the help of my brother. I told him to hold the cam gear up with the chain in place while I removed each cam, with a warning that if he dropped the gear or let the chain skip a link I was going to hit him in the nuts with my torque wrench.

Couple of tips: use RTV cement to hold the valve cover gaskets in place prior to installing again, they are a real pain otherwise. Be sure you install the cam on the correct side.... i know it sounds simple but it can screw up your engine big time if you don't do it right. Hold up the NPI cam next to the PI cam to be sure the lobes all line up. When I started my car after the swap my fuel injectors sprayed fuel everywhere under the hood, Im lucky it didnt start on fire. I should have installed new o-rings on my injectors before completing the swap, I would highly recommend it to you as well.

 

9

98gtmustang64

New Member

Apr 25, 2010

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Jun 15, 2010

#3

• Jun 15, 2010

• #3

thanks man how big of a difference does this really make anyways

 

KBExperience

Active Member

Jun 21, 2009

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Jun 15, 2010

#4

• Jun 15, 2010

• #4

30ish horsepower I believe

 

sneaky98gt

10 Year Member

Apr 23, 2008

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NC State University

Jun 15, 2010

#5

• Jun 15, 2010

• #5

Also need a newer style alternator bracket.

Plan on having another person help do both swaps. I can't imagine placing the intake on the heads by yourself, or holding up the cam sprockets and putting the cams into them by yourself.

Here's a helpful little tip for the intake that I wrote up when I did mine. http://www.stangnet.com/mustang-forums/772069-some-useful-pi-intake-swap-information.html

 

N8Dogg98

15 Year Member

Apr 4, 2005

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Jun 15, 2010

#6

• Jun 15, 2010

• #6

Do you already have the aluminum crossover? If so, you can swap the aluminum crossover from the NPI intake to the PI intake. That way you don't have to tap the extra sensor and you can use the stock alternator bracket. I used my existing NPI coolant crossover and it worked perfectly.

 

9

98gtmustang64

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Apr 25, 2010

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Jun 15, 2010

#7

• Jun 15, 2010

• #7

i got help and i was gonna ask if i should get the aluminum or plastic intake and does it matter if there romeo or windsor cams

 

N8Dogg98

15 Year Member

Apr 4, 2005

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Jun 15, 2010

#8

• Jun 15, 2010

• #8

Be sure you get the PI intake with the aluminum crossover... otherwise you are sitting on a time bomb because eventually the plastic crossover will fail.

IIRC the Windsor cams have the press on gears... get the romeo's that way you don't have to remove the front cover and timing chains

 

9

98gtmustang64

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Apr 25, 2010

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Jun 15, 2010

#9

• Jun 15, 2010

• #9

alright thanks man ive been lookin for all the stuff i need and i think ive found it all im gonna get the stuff comin can i reuse most of the bolts like for the cam and what not

 

N8Dogg98

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Apr 4, 2005

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Jun 15, 2010

#10

• Jun 15, 2010

• #10

You need new cam bolts, cannot reuse your stockers

 

9

98gtmustang64

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Apr 25, 2010

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Jun 15, 2010

#11

• Jun 15, 2010

• #11

alright thanks guys for the help if i got anymore questions ill be asking

 

9

98gtmustang64

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Apr 25, 2010

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Jun 16, 2010

#12

• Jun 16, 2010

• #12

i use pi gaskets right

 

N8Dogg98

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Jun 16, 2010

#13

• Jun 16, 2010

• #13

Doesn't matter. If you use NPI gaskets you need to use RTV around each intake port so there are no leaks, if you use the PI gasket you need to use RTV just in the coolant passages....

FWIW, I prefer using PI gaskets because then you don't have to mess with each intake port and instead only need to place a small dab in each of the coolant passages. It's much less work this way.

 

M

Midnight2V

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Jan 30, 2009

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Jun 16, 2010

#14

• Jun 16, 2010

• #14

Just a thought, but if you are swapping intakes, why stop with a pi when the gastket RTV fix will apparently work with any of the pi style aftermarket intakes. Personally I would think the extra performance potential from either the Edelbrock or the Trick Flow would be well worth the extra cost considering all the work you are planning. Just my .02

 

N8Dogg98

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Jun 16, 2010

#15

• Jun 16, 2010

• #15

He has stock NPI heads and is just installing the PI cams. The cost is minimal and the gains are definitely worth the money.

I doubt one would see any gain in going with an aftermarket PI intake like the edelbrock or the trick flow on stock NPI heads. If he planned on porting the stock NPI's and getting some more aggressive cams (stage 2-3) then I think you could justify purchasing an aftermarket intake.

 

9

98gtmustang64

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Apr 25, 2010

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Jun 17, 2010

#16

• Jun 17, 2010

• #16

whats the easiest way to hold the cam chain and gear up i dont really want to take the front cover off

 

N8Dogg98

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Apr 4, 2005

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Jun 17, 2010

#17

• Jun 17, 2010

• #17

98gtmustang64 said:

whats the easiest way to hold the cam chain and gear up i dont really want to take the front cover off

Click to expand...

Find a reliable helper... My younger brother helped me by holding the gear with the holes using a C-Clamp inserted through the gear holes... on the other side I used a vice grips to grab the gear (make sure you don't pinch the chain) and had him hold it up while I swapped the cams. Be sure you don't drop the cam spacer down into the front cover... that would suck balls...

 

9

98gtmustang64

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Apr 25, 2010

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Jun 17, 2010

#18

• Jun 17, 2010

• #18

alright i just read that ford has a tool to is that even worth getting or should i just do it the way u said your way sounds easier

 

N8Dogg98

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Jun 17, 2010

#19

• Jun 17, 2010

• #19

98gtmustang64 said:

alright i just read that ford has a tool to is that even worth getting or should i just do it the way u said your way sounds easier

Click to expand...

You can do it my way and shouldn't have an issue.... be very careful, however... If you happen to drop the cam spacer, a bolt, anything really down in between the engine and front cover you'll need to take everything apart and you'll be pi**ed...

I seriously told my brother I would stomp on his nuts if he let go

 

Mr. Rustypwnz

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Jun 1, 2005

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Jun 17, 2010

#20

• Jun 17, 2010

• #20

98gtmustang64 said:

whats the easiest way to hold the cam chain and gear up i dont really want to take the front cover off

Click to expand...

2 pairs of vice grips, ive done it this way many many times, never fails!!