which performance parts should i go with?

[zx2srdotnet]

Originally Posted by Mustangman25

Did it have new wires and plugs running larger gaps? A hotter coil would do nothing without both of those...I don't know how a new coil could drop hp...

ive seen it on a dyno

[Mustangman25]

Yeah, but was it just a new coil, or an entireley new ignition system with wires and plugs?

[zx2srdotnet]

they dyno'd with a new intake and wires then dyno'd with a the mods listed and a coil, they lost 2whp

[Mustangman25]

What about new plugs? If you're gonna run an aftermarket coil, you need new plugs with a bigger gap to compensate for the hotter spark. It would be possible to lose hp if the gap wasn't big enough for the spark...

[zx2srdotnet]

Originally Posted by Mustangman25

What about new plugs? If you're gonna run an aftermarket coil, you need new plugs with a bigger gap to compensate for the hotter spark. It would be possible to lose hp if the gap wasn't big enough for the spark...

trust me, these guy know there shit

[pre98zetec]

do they know the fact that the ZX2 zetec and the Focus Zetec responded differently to mods?

[zx2srdotnet]

the only difference is the head, and the zx2 comes with more agreassive cams

[Mustangman25]

So...I'm doing that math here...since the ZX2 has less restrictive heads and cams then the Focus, a new TB would help it breath better? And might the Focus have different ingnition settings because it breaths more conservitivly, so ignition upgrades might affect it more? The way you're talking about it would be like saying that a 4.6L V8 in a Crown Vic responds the same to mods as a 4.6L in a Mustang because they're similar...

[zx2srdotnet]

where did i ever say the zx2 has a less restrictive head? an there is an 11sec focus that still uses the stock ignition so its obvioulsy not a big deal to upgrade

[03Focus_Guy]

thats what most ppl do is go for exhaust first...but if you have more power under the hood before you put the exhaust system on then you actually have a reason for a high power exhaust system

[03Focus_Guy]

lol now i feel stupid i was responding to the last post on page 1...i didnt see a page 2 :X

[Mustangman25]

Originally Posted by zx2srdotnet

where did i ever say the zx2 has a less restrictive head? an there is an 11sec focus that still uses the stock ignition so its obvioulsy not a big deal to upgrade

Well, you said that the heads are different, and I can't think of any other way that they would be different; why would Ford put a more aggressive cam in, but not but on a less restrictive head? How else, aside from dimensionally, could they be different? If the blocks the same for both, then the head dimensions are the same, the only differences would be different shaped ports...it makes no sense to put more restrictive ports on...

[zx2srdotnet]

the ZX2 head has the VCT machanism the Focus head doesnt. That allows it to run more agressive stock cams and still keep great emissions. you can put a Focus head on a ZX2 and have a Focus motor, but its a pointless swap. Ther is nothing to gain from doing the swap

[Mustangman25]

I think you just proved that the motors are different, so they would respond differently to intake and ignition mods.

[pre98zetec]

Originally Posted by zx2srdotnet

the ZX2 head has the VCT machanism the Focus head doesnt. That allows it to run more agressive stock cams and still keep great emissions. you can put a Focus head on a ZX2 and have a Focus motor, but its a pointless swap. Ther is nothing to gain from doing the swap

not exactly, first you would have to get the EGR manifold and then program the computer, along with various other things, It's not as easy as you make it out to be.