Ported Intake for Sale
 

Ported 91 (will fit 90-92) Plenum and Injector Housings
Bolt on 20+ rear wheel horsepower!
$1500 outright or $900 + exchange for your unported parts

http://i418.photobucket.com/albums/p...IMG_0158-1.jpg

http://i418.photobucket.com/albums/p...g/IMG_0147.jpg

http://i418.photobucket.com/albums/p...g/IMG_0145.jpg

http://i418.photobucket.com/albums/p...g/IMG_0152.jpg

http://i418.photobucket.com/albums/p...g/IMG_0156.jpg

Re: Ported Intake for Sale
 

Bob what level of port is this ?

Re: Ported Intake for Sale
 

This is designed to go on a stock or mildly modded 350 cid. Pretty much anything else is going to have ported heads and you'd want to match the intake to the head porting. It's 36+mm throughout except for the primary runners which funnel down from 36mm about half way down the injector housings to 34mm where it meets the head - stock primary head ports are 32mm at the gasket surface.

Re: Ported Intake for Sale
 

Robert,
Excellent work!
Tell us how you managed to finish the runners inside the plenum?

Re: Ported Intake for Sale
 

Trade secret :D
.
.
.
.
.
.
.
.
Well okay.... this pic should explain it... and yes it is a very time consuming pain in the *** to do.

http://i418.photobucket.com/albums/p...8/P1010455.jpg

Re: Ported Intake for Sale
 

Nice work. How about a dumb Q from a guy who has to sweat class rules.

If primary head port is 32mm, what is secondary head port size (stock)?

I ask because I'm limited with respect to work in the head, can only go in one inch. That would seem to be enough to take up the 32 to 34mm...

Hmmm... Mo Powah - tasty!
- Jeff

Re: Ported Intake for Sale
 

The secondary head ports at the gasket surface are a hair over 36mm stock - this is where the secondary butterfly valves are and they take up some space so a "bulge" here was part of the design to compensate.

Re: Ported Intake for Sale
 

Me likey :thumbsup:

Re: Ported Intake for Sale
 

Trade ya for that 440 Frank... ;)

Re: Ported Intake for Sale
 

Forgot to mention that I went ahead and opened up the plenum throttle bores to 2.5in so if you have or may get a 63mm throttle body someday you'll be good to go with this.

http://i418.photobucket.com/albums/p...g/IMG_0172.jpg

Re: Ported Intake for Sale
 

Still available

Re: Ported Intake for Sale
 

I will vouch for Robert.
He has had his Z, and been working on Z's, for many years.
He is a great guy and does excellent work!

:salute:

Re: Ported Intake for Sale
 

Thanks Ted, I need to come down there and do the Mohave Mile with you one of these days.

Re: Ported Intake for Sale
 

Bump.... someone must need some extra HP

Re: Ported Intake for Sale
 

This is a super deal, go price this level of work elsewhere....I am guessing its nearly twice the price....artwork

Re: Ported Intake for Sale
 

Anyone who's even considering a plenum pull is crazy not to do this ported intake and inj. housing's at the same time .

Re: Ported Intake for Sale
 

Does it require a software update?

Re: Ported Intake for Sale
 

it will still run without a tune, might be alittle lean....I bet if you get ahold of someone here you can get it done for $200 or so...Loco might have a connection too...

You gain alot of potential with this upgrade!!!

RPM range goes up....30+ RWHP depending on health of motor and other mods

Re: Ported Intake for Sale
 

Plus with a tune you get rid of the 1-4 skip shift.....advanced timing...can increase the rev limiter, etc

Did not mean to hijack.....Pete, XFire all do tunes

Re: Ported Intake for Sale
 

I've got a Marc H chip, so it should go back to him for an update? Plus headers and exhaust. Guess on hp increase?

Re: Ported Intake for Sale
 

I put down 391rwhp on my 92 with an off the shelf Rippie chip...no specific tune, porting and headers. Thats 450-460hp...so I would think 450-470hp possible with a good motor and tune......(ported, headers, etc)

At this point its every ZR-1 owners moral obligation to stay ahead of the C7:)

Re: Ported Intake for Sale
 

Do it!!!!! 12.42@117.5 on crappy street tires....probably faster if I had it tuned

http://www.youtube.com/watch?v=8Y4Re5TqIw4

Re: Ported Intake for Sale
 

Porting, injector's, coils, wires, gaskets, chip update ect. Sounds like more than I should be spending right now. Plus paying someone to do it. (I'm a terrible mechanic). Much as I'd like to get to 500 hp!!!

Re: Ported Intake for Sale
 

Use my wifes logic:

New C7 465hp; your cost $60,000
Ported intake for 460-470hp: $900

If you buy this, you will save yourself $59,100...hurry up before you blow $59K

Re: Ported Intake for Sale
 

Huh, that's pretty sound thinking.

Re: Ported Intake for Sale
 

An oft overlooked must do when bolting on a 63mm TB.

Re: Ported Intake for Sale
 

Steve,

Top end w headers will get you to within a hair of 400rwhp. I'm pretty sure there's a dyno here w my motor doing 399rwhp before heads and cams. And yes tunes are available.

Re: Ported Intake for Sale
 

Stock chips tend to run slightly rich as a safety precaution - the factory didn't tune each car individually, they threw a safe, one size fits all tune on them. Usually a stock chip has enough extra fuel for a mod or two, once you combine a few mods... say headers, exhaust and a ported intake then it's time for a custom prom with more fuel. This is a very common grouping of mods that gets most Z's to approx 400rwhp and Marc and others have chips ready made for this combo.

Re: Ported Intake for Sale
 

Haha now those are some awesome justification skills you've got there Lee.

Re: Ported Intake for Sale
 

Using that logic I will save roughly 50K dollars doing the Big Cube engine over buying the fully loaded C7.
Let me see if I can get that past my wife.
Maybe if we go to a Chevrolet dealer look at an order sheet I can say something like I can't justify 72K dollars for a car with 450HP when I can have my current cars engine redone for around 20 and have around 700 HP.

Lee, That sounds like perfect logic to me.

Re: Ported Intake for Sale
 

Once the plenum comes off, how more is involved in pulling the injector housings? -Steve

Re: Ported Intake for Sale
 

Alot of small steps but nothing that is rocket science......I did a swap in about two hours, first timer probably 4-6hrs...

Isn't there a group around you could do a plenum pull?

Re: Ported Intake for Sale
 

Closest help is in CT and NY.

Re: Ported Intake for Sale
 

You have nothing to fear but fear itself...Do it!!!! Lots of support here on the forum!

Re: Ported Intake for Sale
 

Nothing but support here on the forum.
Never got a straight answer. Does my Marc H chip need reworked to support this upgrade?

Re: Ported Intake for Sale
 

Do you have a mail order headers+exhaust chip from Marc? If so you would probably be okay as I'm sure Marc adds a little extra fuel on his mail order stuff to be safe. Marc would most likely advise you to send him the chip in order to add a bit more fuel - just to keep that extra margin of safety.

Re: Ported Intake for Sale
 

Nothing but fear with help from CT and NY...
Did someone say road trip?
TomTom, you up for another trip to the Granite State?

Re: Ported Intake for Sale
 

pulling the plenum can be scary even for owners who have had their cars for a while if you haven't done it in a while

Re: Ported Intake for Sale
 

Okay, to help out my Z Brother Steve...why sure!;)

:cheers:
Tom

P.S. It will have to wait a bit as I am busy this labor day weekend.:o

Re: Ported Intake for Sale
 

:mad: Hey what's this chit about "paying for a mechanic" ???? I don't eat that much...jez, lunch and maybe a coffee break should do it, and I don't even drink alcohol any longer so all ya need is some diet coke! :neutral:

Okay, I'm not a real ZR-1 mechanic....I just pretend to be one! My car still runs...in spite of me! :p :sign10:

:cheers:
Tom