Ported Exhaust Manifolds ?

[stlmo_gtp]

anyway to port your own exhaust manifolds ? and if so how hard is it ?

[UR LOSN]

yes you can! all you need is a dremel and a lot of the proper bits. I used a lot of sanding discs.....and wear a mask...the dust flies everywhere.

the front is a MUST! the rear there really isnt that much restriction.

[Bogers99GTP]

^^^ I agree, it will get messy, plus you dont want to breath in all that crap. I did this to my gtp, and it worked well .till I got a crack in the manifold/crossover flange, so went with a Powerlog. Dont worry about the flange messing up, mine was a freak crack,(dont know how it happened...crappy metal)?

[BADAZGTP]

Is there a write up on this to show exactly what to do?

[IndeedSS]

ask and you shall receive

Ported Exhaust Manifolds - PEM's

As mentioned the rear is good enough. The front gain is likely minimal. Reason being, you can't get vary far beyond the openings. Imagine the tight rough regions beyond where you can see or gain access to.

[BADAZGTP]

Thanks SS. So I would probably be better off getting a P-Log for what mods I have as of now?

[Sabrewings]

The front gain is likely minimal. Reason being, you can't get vary far beyond the openings. Imagine the tight rough regions beyond where you can see or gain access to.

Not to mention the main piping of the front is terrible small and you just can't port that. All of these are the reasons the Powerlog was developed in the first place.

[BADAZGTP]

Thanks for the input guys.

[WhiteDevil]

gonna port match or gasket match em?

Ive done both, dremel is a must, so is a good painters mask. I have a P&P kit that has all the stones and abrasives you need, its over 20 years old but I havnt used em all up yet.

If you port the manifolds you might as well port the heads too, its not hard jsut very time consuming and you gotta be patient and have very good concentration.

[stlmo_gtp]

thanks guys for all you replies i think i might just go with powerlog but i also haven't decided if i want ported exhaust manifolds or headers, i think i need to figure that out first and then go from there

[Freebeer187]

What kind of gains do u get with this one?

ZZ Performance

[Freebeer187]

Oh nevermind!


BTW this is nice

[Bogers99GTP]

What kind of gains do u get with this one?

ZZ Performance

look at the review for 08/20/08....that my review only thing is that a few days after the crappy paint started to flake off.

[Sabrewings]

look at the review for 08/20/08....that my review only thing is that a few days after the crappy paint started to flake off.

Talking about the ceramic coating? I ordered my Plog as a 304 stainless uncoated (since stainless holds heat decently on its own). My crossover is coated ceramic and still looks just fine.

[Street Wolf]

thanks guys for all you replies i think i might just go with powerlog but i also haven't decided if i want ported exhaust manifolds or headers, i think i need to figure that out first and then go from there

Get some headers, if all else fails, get the powerlog. Don't bother taking of your manifolds and porting them. It's not worth it.

[Bogers99GTP]

Talking about the ceramic coating? I ordered my Plog as a 304 stainless uncoated (since stainless holds heat decently on its own). My crossover is coated ceramic and still looks just fine.

It wasnt the ceramic coating... was cheap black paint that they put on there.

[Sabrewings]

Ah, okay. I'd heard about ZZP paint flaking, but I didn't know they painted the Plogs. I thought it was ceramic or bare.

[Bogers99GTP]

Ah, okay. I'd heard about ZZP paint flaking, but I didn't know they painted the Plogs. I thought it was ceramic or bare.

Wish it had been bare...may just wait a while and glass-bead them down the road.