Ok, just so you guys know, I've started a new project... It involves "Plastic Aluminum" and a spare 2.8 TB I've had laying around...

Ever look at the TB from the front... on the right side there is that huge hole that just goes back and then ends? Doesn't do anything, no manifold vacuum ports, no nothing...

Take the PA and fill in that hole...

Then take a look at the IAC passage... thats excessively huge... Take some PA and fill alot of it in to roughly half it's size...

I was thinking of filling it all completely in and just controlling idle from the idle speed screw... but I need to think of how the TPS is going to compensate for that...

I'll have before and after picts in about a week... I need to fill these ports in slowly because this stuff takes 12 hours to cure, and then I have to grind it down smooth and polish it... Then I'll bolt it on and let you know how it feels... My goal is to completely compliment all those ram-air set-ups we have running around... and to completely wrap up those who also have ported and polished intake tracts...

After this comes my intake... I'll fully port and polish it... radius the injector ports... gasket match the lower manifold and clean up the upper... port out the TB to 54 or 56MM and make a new .25MM thick throttle plate, and match the new TB to the new upper plenum...

I think I'll pick up at least 25 horses from this... (the porting, polishing, radiusing and TB boring and matching)

 

Those "empty" ports do nothing to hinder performance really. They introduce very little turbulence. And to fill the IAC port even a little would seriously hender its effectiveness. You will find that the car or rather the ECM will HATE you for doing that. The 2 empty side holes go for the filling but I would leave the IAC port alone personally.

 

Thats ok, I hate both my car and the ECM to begin with... I'll just give it a dose of it's own medicine and play with its sensors...

Time will tell... I'll keep you updated...

And if it doesn't work? oh well, what am I down like 3 bucks for the Plastic Aluminum stuff? And some time but ohh well.. it's fun...

We'll have to wait and see...

 

LOL...

 

duh... tell me this... once u filled it up with that plastic whtever... if u wanna bring it back to the hole... wat are u gonna do... drill it ...

or is it tgat u have more of these TBs lying around??

 

Sounds interesting! I always wondered if the IAC port "had" to go back thru the throttle body... seems as long as it sucks air from anywhere, the IAC system will work. Know what I mean? Maybe if you plug that side up, and re-drill the TB so a hole exits out the top of the TB, and then attach a vacuum hose between that and the car's air filter (or a breather filter)...?

 

I think this project sounds interesting. Actually I have had the IAC unplugged once after I cleaned it htis summer for like 3-4 days, and I didn't notice a difference. So filling it in should have some interesting results. Good luck on this man. (just don't screw with TPS, ever unplug that just to see what its effects are, my car wouldn't start... lol)

 

Well, I'm no "filling in" the IAC hole... I'm making its opening significantly smaller... the hole on the -other- side of the TB is the one I'm filling in...

As an update to this post... the TB is done... it just needs a little more sanding work and then I can try it out and post pics... Right now it looks pathetic, with how torn up the metal is, but once it's polished it'll look damn good... I need to get the bits for my dremel to finish it... probably going to get done either tomorrow or Friday...

Relocating the IAC port hole is a -very- interesting idea... I could drill out the back of the hole, fill in the front and have it draw air in there... Super-glue a little foam over the front to act as a filter and bamo, you're done. Me likes, me LIKES! I'll definatly be trying this, I'm going to need to get better drillbits though, mine suck

 

I could drill it out, but I won't... I got an entire 2.8 intake set-up from the junkyard... included TB, upper middle and lower portions, fuel rail and injectors for next to nothing... It was at a local pull-a-thon so you pay 30 to get in, and whatever you can carry out is yours... I got all that plus alot of other stuff

So yes, this is just a 'spare', my 'good' one is still on my car.

 

A pull-a-thon in NJ? What junkyard? Got a phone number??

 

Tom, it's a once or twice yearly thing... whenever they change their stock of cars...

The place is Cosmo's in Bayville on Double Trouble road. I don't have a number but maybe 411 can help you with that.

I'll keep you posted when the next one is...

Like I said... 30 dollars to enter the yard, anything you can carry across the truck scale is yours (60 feet). You can't bring carrying devices in, but anything you can use in the yard is yours.]

What me and a friend did is we went the night before the Pull-A-Thon and pulled all the stuff off the cars that we wanted (the owner actually suggested this to us, only a dollar to enter normally pay for what you got when you leave) and hid it in a van... we came the next morning... piled:
MR2 ground and chassis effects, my entire intake and plenum setup, and entire Camaro muffler that had rusted off with the good condition 3.5 in chrome tips, as well as a Fel-Pro gasket set for the 2.8 (a lucky junkyard find!) and an alternator...
onto a hood of a car that we pulled off and carried that... and then my friend cut up seatbelts and tied the wheels and rims around his shoulders and carried those out while helping me with the hood of the car...

Thats how you work the system... all for 60 dollars between the 2 of us... and it's FUN!!! Get there _EARLY_ though... this year they started admitting at 8, we got there at 7 and the road was lined with cars, the line was out to the road... there were probably 60 people infront of us and probably triple that showed up between 7 and 8... and this is a day long event... plus it brings rodders out of the woodworks... it's like it's own little car show too!

Tom, I'll give you direction to the yard... it's a rip-off on normal business days, and the people that work there can be pretty butch, but hey, it's a yard... what do you expect... Anyway, exit 80 on the parkway... stay to the left! you can go right and go under the parkway, or stay left and go to a light or stay even further left and make a left hand turn... make that far left left hand turn then just stay on that road... speed limit should increase to 50 and it should parallel the parkway for a ways... you'll see some construction, get ready because it's right around that bend.. maybe 1000-1500 feet... you'll see it... that construction you see is them putting in a new off-ramp, I don't know if or when it'll be done, or even what exit it will be, but getting off there will make it easier...

Anyway, sorry for ranting... I'll let it be now... I couldn't get the Dremel bits so it's going to be postponed for a bit still... I'll try to get them tomorrow...

 

:-D

It's going on today... it's not perfect, but I can't resist...

 

Nevermind, I take that back... probably over the weekend... I've got work in a little while and I need to redo my IAC port modifications because I went a little too far with it... right into an air-pocket...

It's loking nice though.