I got mine through Ford, they are alot more money than a Chilton but they are worth it.zerosgt said:Where can i get a shop manual like that? Did you match port the heads when you did it?
coramprat said:PI intake/70mm TB/Aftermarket upper plenum and Comp 262 or VT stage 1 cams closely equals the entire PI head swap in HP numbers and you can keep your compression at the point to where you can SC later. Plus you can do it cheaper...
I bought some adapter plates that blended the ports but some people have used RTV to seal the ports to prevent leaks with good results. Do a search for pi intake here and on Modular Depot and you should find the tech on the swap using RTV.zerosgt said:Where can I go to get a PI intake that will bolt onto a set of NPI heads? The PI head swap is above my mechanical abilities.
coramprat said:I bought some adapter plates that blended the ports but some people have used RTV to seal the ports to prevent leaks with good results. Do a search for pi intake here and on Modular Depot and you should find the tech on the swap using RTV.
I paid a hundred bucks for my plates...just so the ports would transition a little better. Not knocking the RTV method though becuase it is tried and true.TGJ said:Ok, I am getting tired of arguing this, but I want to know why the adapter plate method is better than RTV and the PI gasket method.
RTV has been around for a long ****ing time and the big 3 US automakers at one in the past, RTV was how they made gaskets. I know of some RTV gasket made cars running 200,000 kms and counting with no issue of leaks what so ever.
Using the PI gasket, you have to use a small dab of RTV on 2 of the coolant ports, that is it. I posted pictures once where the RTV goes, but I am not looking for them now. It won't fail under boost because boost does not affect coolant flow. It will last because RTV is designed to seal against water and coolant.
What the adapter plates do is lift the intake manifold. Lifting the intake manifold, lifts the fuel injectors which affects the spray pattern. Using adapter plates requires you to use both the NPI and PI gasket, you also have to take that into consideration. You will require a tune using adapter plates to correct the A/F ratio.
The adapter plates have shown no better results( HP/TQ ) than those who just used the gasket and RTV method.
The best method, would be to have the heads port matched to the PI intake gasket with some aluminum welded into the coolant port. I would only consider this, if I was using ported NPI heads.
IMO, the next best method is the PI gasket and RTV method. The adapter plates IMO are a huge waste of money and would be the last method, I would use.
coramprat said:PI intake/70mm TB/Aftermarket upper plenum and Comp 262 or VT stage 1 cams closely equals the entire PI head swap in HP numbers and you can keep your compression at the point to where you can SC later. Plus you can do it cheaper...
I agree there...the only reference I have to go by before and after my PI intake swap was track times. I gained a MPH and a tenth so maybe 5-7hp. But with the cam swap my dyno was a good 30-35 hp better and my mph is up by 6.TGJ said:IMO, you will need cams to go with the intake. The NPI cam runs out of steam around the same time as the NPI intake does. At minimum, go with with PI cams.
lost in space, im at an undisclosed location right now, i'll be back and a week or twodroptopponynj said:where have you been?
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