Teach me the ways of the SN95 (PI swap)

[G..]

We could probably argue about it all day, but the likelihood of landing 300rwhp with a stock 2V and PI heads is a real long shot unless you've got a power adder. Cams or not, PI heads aren't that good, they're just better than non-PI heads. Maybe if the heads have port work and throw in a tune.

My PI converted 97 with PI heads, comp cams and bullit intake made 314 rwhp and 300ftlbs. Nothing to argue about. I have seen lots of PI cars with cams make 300. Only argument is that of the misinformed.

[Lone Sailor]

My PI converted 97 with PI heads, comp cams and bullit intake made 314 rwhp and 300ftlbs. Nothing to argue about. I have seen lots of PI cars with cams make 300. Only argument is that of the misinformed.

A standard '01 bullitt intake, which is usually ported, is a far cry from a stock PI intake. Nice try. Looks like the only argument for you is if you know what a true PI motor is, because it sure isn't one with comp cams and a bullitt intake. Even with cams, the the bullitt intake is much better flowing than a PI intake. I bet if you switched the intake to a stock PI intake you would be below 300 to the wheels with the stock tune.

[SVT Lurch]

Check the rear sway bar. Every SN95 I've owned has broken that within 100 miles of the 60,000 mile mark.

A standard '01 bullitt intake, which is usually ported, is a far cry from a stock PI intake.

That's true. I forget which magazine did the test, but they found out that the non-PI intake was more restrictive than the heads - you just had to swap the heads so the intake would fit.

[shumpertdavid]

Even with PI heads it's not going to be that fast. If it's a true PI swap with cams then it'll be a little faster than a stock fox.

From what I've always heard, it depends on what the swap is defined at. If it's a complete PI motor swap then the #'s will be lower. If it's a PI top end swap I was always told it's good for @ 300 hp. NON PI motors had little or no dish in pistons and large chamber head, PI had dish piston and smaller chambers. Smaller chambers and less dish = More compression which should equal more power. That being said I'd think depending on what the actual swap was and the cams it could be in the 300 range.

[Sergio]

Check the rear sway bar. Every SN95 I've owned has broken that within 100 miles of the 60,000 mile mark.

60k miles?! mine didnt make it to 30k!

[SVT Lurch]

60k miles?! mine didnt make it to 30k!

I guess I drive like a grandma? Never had slicks on any of them, wasn't much or hard cornering or drifting or anything like that.

[Steve]

My 98 doesn't have the PI swap, but it runs pretty good without it.

[SVT Lurch]

My 98 doesn't have the PI swap, but it runs pretty good without it.

You also don't have non-PI heads, Jackwagon.
I will remain a bitter asshole until I get a ride in it.

[Steve]

You also don't have non-PI heads, Jackwagon.
I will remain a bitter asshole until I get a ride in it.

Slight technicality.

[Snatch Napkin]

Alright. It definitely has PI heads, longtubes, offroad h-pipe, and 3.73 gears.


However....
The front o2 sensors are missing their wiring, and spark plugs now residing in the bungs. The rear sensors are without the required MIL eliminators, and also have some nasty wiring fixes in them.

Naturally, it gets o2 sensor codes. It also has cylinder 3 and cylinder 7 misfires. I hear the crank sensor is prone to going out on these.

This is all simple stuff to fix for me, so I'm not real worried about those. I'm not seeing where there were anymore bullshit makeshift repairs, so hopefully that's the extent of it.

Quick question... Would I be able to hear some "hot cams" with the missing o2 sensors and a faulty crank sensor?

Also, the 8th letter in the VIN (engine code) is an X. My Haynes manual does not list an X for an option. Was this car originally equipped with a 4.6?

[greenbullitt]

x was a 4.6, but i dont remember if thats right for 1998, look into that. misfires could be related to screwed fuel trims because of no 02s possibly, yes you should hear cams, i bet it only has pi cams

[Snatch Napkin]

x was a 4.6, but i dont remember if thats right for 1998, look into that. misfires could be related to screwed fuel trims because of no 02s possibly, yes you should hear cams, i bet it only has pi cams

The 10th letter was a W, which means it is a 98.

That would be cool if o2's fixed everything.

[SVT Lurch]

Quick question... Would I be able to hear some "hot cams" with the missing o2 sensors and a faulty crank sensor?

yes you should hear cams, i bet it only has pi cams

I think a lot of people called the PI cams "hot cams" when they did the swap so it sounded cooler. An actual cammed 2V will sound similar to a cammed 5.0 and if you're familiar with Mustangs you should be able to hear the difference, although it would be harder with the O2/crank sensor issue(s).

[Snatch Napkin]

I think a lot of people called the PI cams "hot cams" when they did the swap so it sounded cooler. An actual cammed 2V will sound similar to a cammed 5.0 and if you're familiar with Mustangs you should be able to hear the difference, although it would be harder with the O2/crank sensor issue(s).

I'm pretty familiar with the sound, just wanted to make sure. I haven't heard many mod motors with a cam unless they were big gnarly cams. I figured little cams on one of these would be less noticeable.

I remember when Don got cams for his 3v. This car sounds nothing like that. It did for about 4 seconds as he was leaving today, but otherwise I just hear some missing and unbalanced combustion.

[G..]

A standard '01 bullitt intake, which is usually ported, is a far cry from a stock PI intake. Nice try. Looks like the only argument for you is if you know what a true PI motor is, because it sure isn't one with comp cams and a bullitt intake. Even with cams, the the bullitt intake is much better flowing than a PI intake. I bet if you switched the intake to a stock PI intake you would be below 300 to the wheels with the stock tune.

Bullit intakes are not ported and only picked up 8rwhp from swapping although it was all across the range. You are the one arguing it would barely be faster than a stock 5.0 if it was a true PIswap with cams . You implied if it had aftermarket cams. I had a stock PI motor with cams, and a FRPP intake and it made as much and more than majority of HCI 5.0s. So again back to the ignorance argument. Do you own a PI car or worked on one so to speak to give your comments any merit?