Ported Intake for Sale

[Locobob]

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/pp270/locobob68/Head%20porting/IMG_0158-1.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0158-1.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/IMG_0147.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0147.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/IMG_0145.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0145.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/IMG_0152.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0152.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/IMG_0156.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0156.jpg.html)

[GOLDCYLON]

Bob what level of port is this ?

[Locobob]

Bob what level of port is this ?

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.

[Jagdpanzer]

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

[Locobob]

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

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/pp270/locobob68/P1010455.jpg (http://s418.photobucket.com/user/locobob68/media/P1010455.jpg.html)

[batchman]

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.

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

[Locobob]

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

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.

[FU]

Me likey :thumbsup:

[Locobob]

Me likey :thumbsup:

Trade ya for that 440 Frank... ;)

[Locobob]

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/pp270/locobob68/Head%20porting/IMG_0172.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0172.jpg.html)

[Locobob]

Still available

[tf95ZR1]

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:

[Locobob]

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:

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

[Locobob]

Bump.... someone must need some extra HP

[LGAFF]

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

[FU]

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

[efnfast]

Does it require a software update?

[LGAFF]

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

[LGAFF]

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

[efnfast]

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?

[LGAFF]

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:)

[LGAFF]

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

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

[efnfast]

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!!!

[LGAFF]

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

[efnfast]

Huh, that's pretty sound thinking.

[XfireZ51]

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/pp270/locobob68/Head%20porting/IMG_0172.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/IMG_0172.jpg.html)

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

[XfireZ51]

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.

[Locobob]

Does it require a software update?

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.

[Locobob]

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

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

[cvette98pacecar]

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.

[efnfast]

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

[LGAFF]

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?

[efnfast]

Closest help is in CT and NY.

[LGAFF]

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

[efnfast]

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

[Locobob]

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

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.

[Mystic ZR-1]

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

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

[Kevin]

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

[tomtom72]

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

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

[tomtom72]

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!!!

: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

[efnfast]

So, if you guys are up for some help with this, I'm in.
Locobob, let's do it.
Tom, fear not. We'll feed ya well, and offer booze. Your choice whether you take it or leave it.
I'll need to gather up the rest of the stuff, so it won't be in the near future.
Anybody watching this thread got a ported airhorn for sale? No sense not doing it too.
Sounds like Delco coils are good, how 'bout wires?

[LGAFF]

I am sure bob might do one for you(air horn) if not, I might have a one I can do in exchange on the cheap.....yours is a 90?

[FU]

Save your money on the air horn.

Did some one mention booze ?

[efnfast]

Lee, mine is a 90.
Frank, not worth the money? If it's short money, I'll bite.
Booze, ya we got booze. You comin'? I know you got a couple bottles of Vodka.

[FU]

Some one drank the booze. Damn that guy.

Ported intake and inj. housings are great addition's.

Stick on the ported intake , inj. housing you will be very happy with the results.

We need a max effort engine to make use of a ported air horn. Even then gain's with the ported AH are minimal. Save your money leave the air horn alone.

So when is the install ?

[efnfast]

Frank, probably a month or so. I still need to gather injectors, coils, wires (who's), gaskets, plenum, vaccuum lines while I under there?

[XfireZ51]

So, if you guys are up for some help with this, I'm in.
Locobob, let's do it.
Tom, fear not. We'll feed ya well, and offer booze. Your choice whether you take it or leave it.
I'll need to gather up the rest of the stuff, so it won't be in the near future.
Anybody watching this thread got a ported airhorn for sale? No sense not doing it too.
Sounds like Delco coils are good, how 'bout wires?

Steve,

You've begun your journey towards the dark side.

[efnfast]

It's all down hill from here isn't it?

[cvette98pacecar]

Lee, mine is a 90.
Frank, not worth the money? If it's short money, I'll bite.
Booze, ya we got booze. You comin'? I know you got a couple bottles of Vodka.

Frank, is the only guy I know that cuts Vodka with Vodka.

[efnfast]

That's the way I like my Scotch....over Scotch.

[tomtom72]

So, if you guys are up for some help with this, I'm in.
Locobob, let's do it.
Tom, fear not. We'll feed ya well, and offer booze. Your choice whether you take it or leave it.
I'll need to gather up the rest of the stuff, so it won't be in the near future.
Anybody watching this thread got a ported airhorn for sale? No sense not doing it too.
Sounds like Delco coils are good, how 'bout wires?

:o a humble suggestion, by your leave sir: GM wires are fine, GM coils or it seems anything from the Summit or Jegs catalog from the aftermarket do quite nicely as do regular GM spark plugs 41-602 P/N.....on the air horn and throttle body, that can wait. I would get the important stuff : plenum and I/H's and do the T-body and air horn later.

My shopping list for you looks like this IMHO : new injectors, top end gasket set, coils, wires, Loco Bob's ported plenum & I/H's. I would consider asking Jerry about the fuel rail O-ring set that works for our gas with the alcohol in it. The next time I do my plenum pull I'm going Jerry's O-ring route....:o

[efnfast]

Thanks Tom, I think I'll wait on the throttle body and horn 'till the heads are done.
Injectors may come from Jerry, he has the FIC's. I've also got a line on another set of the same that were bought by someone and never used.
Coils and wires from Jerry. Yes, I'm sure Jerry will be more than some unknown sorce, but I'd rather support Jerry than my local Chevy dearler, or flea bay.
Locobobs stuff.
Gaskets from Jerry, I have some of them.
Didn't know about fuel rail o-rings, are those the ones on the injectors?

[tomtom72]

My apologies Bob....for hi-jacking your thread. :o

Steve, the fuel rail O-rings are all the o-rings at all the connection points in the fuel rail piping. Just ask Jerry to point out the kit. The injectors come with all the needed O-rings to install them, the fuel rail kit is a separate part.

You are so going to love Bob's work and the results on the car! I'm envious. Hey, does your exhaust guy know how to weld stainless steel???? I need some welding done on my headers before I coat them. :o

:cheers:
Tom

[efnfast]

Thanks Tom.
Yes, he knows how to weld stainless. He does beautiful work. If you bring them, I can bring them to him, then ship them down to you.

[batchman]

Does my Marc H chip need reworked to support this upgrade?

Steve, one thing that may have been unclear but these IH's have no secondary butterflies so unless you've already removed yours a retune will be needed.

Congrats on taking the leap, was eying these myself but have to wait for post-season to consider this level of project.

Cheers,
- Jeff

[A26B]

.......
Steve, the fuel rail O-rings are all the o-rings at all the connection points in the fuel rail piping. Just ask Jerry to point out the kit. The injectors come with all the needed O-rings to install them, the fuel rail kit is a separate part......... :o

:cheers:
Tom

The o-ring seals always seem to be a bit confusing, so I will see if I can make it a little bit clearer.

90~92
Originally, the 90~92 model injectors had a different external configuration, between primary & secondary. The difference only pertained to the bottom of the injector, both primary & secondary injectors flowed the same amount of fuel.

The secondary injector seals, both top (fuel rail) & bottom (injector housing), were the same small o-ring, PN 17112222, and fit into a groove on the injector, created with a thin flange.

The primary injector seals used the same o-ring seal, PN 17112222 for the TOP ONLY (at the fuel rail). The bottom seal, PN 10067600, does not install on the injector, but rather inside of the injector housing and seals on the o.d. of the injector, slightly above the bottom. The primary injector did not have a metal flange on the bottom to retain a lower o-ring like the secondary injector did.

So, in summary, a complete set of injector seals, upper & lower, consists of 24pcs PN 17112222 (small O-rings) and 8pcs PN 10067600 (large O-rings).

Today, aftermarket injectors, FIC, Accel, etc., are identical for both primary & secondary, i.e. they have the metal flange to retain an o-ring on both the top AND bottom. Herein lies the confusion for first-timers.

Typically, a new set of injectors will come with 32pcs of the small o-ring, PN 17112222 and NO, zip, zero, nada primary injector lower o-ring seals, PN 10067600. Do not install the small o-ring on the bottom of the primary injectors. it will not hurt anything, but it does not seal and serves no purpose. if it is on the primary injector already, then remove it.

93~95
Lot simpler, same o-ring seal, top & bottom for both primary & secondary injectors.

Jerry's Gaskets Combo Kits
Speaking only about Fuel Injector Maintenance Kits (we offer several different Combo Kits, depending on the work to be performed).

90~92
http://jerrysgaskets.com/store2/root/index.php?main_page=product_info&cPath=19_20&products_id=459

This kit contains the following;
Gaskets & seals included in this kit are as follows;
PN 10168684 Gasket Set, Intake Plenum
PN 14104675-V Seal Set, Fuel Feed & Return Pipe (VITON-A)
PN 17112222-24V Seal Set, U-Primary & Secondary Inj & L- Secondary Inj (VITON-A)
PN 10067600-V Seal Set, L-Primary Inj (VITON-A)
I have confirmed that FIC Injectors come with all new Viton o-ring SMALL seals PN 17112222, needed for either the 90~92 or 93~95. They DO NOT come with the primary injector lower seal.

I have not been able to confirm whether the o-ring seals on other aftermarket injectors are Buna-N or Viton. We strongly recommend using Viton over Buna-N when ethanol blended gasoline is used, E10, E15 ,etc.

IF new injectors are being installed, and they are furnished with new o-ring seals of a suitable material, then there is significant savings in ordering just what you need as opposed to the Combo Kit listed above. There is no need to purchase a kit that has 24pcs PN 17112222 if they come with the injectors. Instead, buy the remaining individual items separately.

93~95
http://jerrysgaskets.com/store2/root/index.php?main_page=product_info&cPath=19_21&products_id=455

Same as for 90~92 above..... if you are buying new injectors From FIC, no need to buy the Combo Kit. The O-rings that come with the injectors are Viton and ready to install. Save money, do not buy the Combo Kit, just order the remaining items separately.

I hope this helps to shed some light on the different styles of injectors and the seal configuration, as well as different seal materials. If you have any questions, feel free to contact me.

[A26B]

Steve, one thing that may have been unclear but these IH's have no secondary butterflies so unless you've already removed yours a retune will be needed.........
Cheers,
- Jeff

Just an respectful FYI, Secondary port throttles (butterflies) are located in the cylinder head, not the injector housings

[batchman]

Har har har - clearly I need to take mine apart sooner rather than later!

And now I have to think about how that affects my class rules....

Thanks,
- Jeff

[efnfast]

Just an respectful FYI, Secondary port throttles (butterflies) are located in the cylinder head, not the injector housings

Thanks Jerry, I was concerned I'd have to mess with the secondaries.

[efnfast]

Plenum and injector housings are here. They look good, thanks Locobob.
Pulled the coolant fittings tonight, as soon as the plugs show up from summit (thanks cliff) I'll drill and tap them.
Injectors are here.
Gaskets and starter are on the way. Thanks Jerry.
Soon as everything is assembled, we'll have a party.

[tomtom72]

Plenum and injector housings are here. They look good, thanks Locobob.
Pulled the coolant fittings tonight, as soon as the plugs show up from summit (thanks cliff) I'll drill and tap them.
Injectors are here.
Gaskets and starter are on the way. Thanks Jerry.
Soon as everything is assembled, we'll have a party.

Okay Steve. Not to be a PIA, but October 12, 2013 is out for me. That's a Saturday and it is Kerbeck's Toys for Tots day. Keep me in the loop, please?

:cheers:
Tom

[efnfast]

Sure will Tom, thanks.

[XfireZ51]

If you only knew the power of the dark side!

http://youtu.be/sWhmXoEr9z0

[efnfast]

I'm learnin' Dom. I'm hoping this pushes me to around 450 hp. I'll dyno it when I'm done.
Dominic, are you tuning for hire?

[efnfast]

Couple of questions have come up.
Should I have all the mating surfaces machined true?
Should I put alignment pins in?
Comments from the peanut gallery?

[XfireZ51]

I'm learnin' Dom. I'm hoping this pushes me to around 450 hp. I'll dyno it when I'm done.
Dominic, are you tuning for hire?

You doing just top end? Secondaries? With only top end done, I had 399 to the wheels, so 450chp is very doable. Cams weren't phased.

[efnfast]

Just the top end. Heads and cams will be later, and a tune.
I'm currently 353 at the wheels, so about 415 cshp.

[XfireZ51]

Just the top end. Heads and cams will be later, and a tune.
I'm currently 353 at the wheels, so about 415 cshp.

400whp includes headers and exhaust. Mine was Watson headers
And Mflow cat back.

[efnfast]

OBX headers and exhaust. No cats. Marc chip. K&N. Heavy right foot.

[Locobob]

Couple of questions have come up.
Should I have all the mating surfaces machined true?
Should I put alignment pins in?
Comments from the peanut gallery?

The mating surfaces should be good to go, I hit them very lightly with a board sander just to clean them up, surface finish with these parts is not super critical like say the head to block mating surface.

The four corner bolt holes of the plenum have been sleeved to tighten up the alignment tolerances - they have almost no slop. I would suggest that you loosely attach the injector housings to the heads, set the plenum on top and run the corner bolts down a bit, then remove the plenum carefully as to not disturb the injector housings and then tighten down the injector housing bolts. This will insure a good alignment and minimize the chance of stripping bolt holes on the injector housings. Once you have the injector housings on and tightened down you can set them up for later if you want by drilling 2 1/8in dowel pin holes per side through the injector housings and heads, you can also do the plenum to injector housings the same way if you like. Here are some pics of what mine looks like.

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/P6200003.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/P6200003.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/P7120049pinhole.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/P7120049pinhole.jpg.html)

http://i418.photobucket.com/albums/pp270/locobob68/Head%20porting/P7120047pinholecopy.jpg (http://s418.photobucket.com/user/locobob68/media/Head%20porting/P7120047pinholecopy.jpg.html)

[efnfast]

Thanks for the tips.

[batchman]

Holy Smokes - are those *before* pictures? Please tell me those are the injector ports we're looking through - but the angle sure seems like that's the path from the plenum...

If that's the OE intake tract I've got to get those things off right away - no wonder you guys are finding big gains!

Steve, PM me when you're planning on cracking the first bolt and I'll try to be around. This I have *got* to see...

Best,
- Jeff

[Locobob]

Holy Smokes - are those *before* pictures? Please tell me those are the injector ports we're looking through - but the angle sure seems like that's the path from the plenum...

If that's the OE intake tract I've got to get those things off right away - no wonder you guys are finding big gains!

Steve, PM me when you're planning on cracking the first bolt and I'll try to be around. This I have *got* to see...

Best,
- Jeff

If you are talking about my pics showing the alignment pin locations then yes, you are looking at the holes for the injectors which is what you see if you look straight on at the bottoms of the injector housings - the actual intake ports have a pretty good curve to them.