I installed the blox intake manifold on my 90 integra. I’m assuming the 92-93 might be a little different.
Well I would have to say that the intake manifold is really well made. You should expect this from a piece of metal. It took some time to make it all work but it seems like its well worth it. (I’m still breaking in my car so I didn’t push the car). I also installed this while I installed my new head so its alot easier than when its all in the car.
First off, take off the stock intake manifold. IF this has never been taken off, its going to be a HASSLE since there is a metal bracket holding the stock IM to the engine. I took mine off awhile back. Its not really needed IMO. I took off the two bolts holding the IVAC so i didn’t have to disconnect the water lines. Also I took the complete throttle body off so I didn’t accidentally break the throttle position sensor. Since the IVAC is off of the stock piece would be a really good time to clean it out. Follow the teg tip (http://www.g2ic.com/forums/showthread.php?t=35534)
If you look at the blox to the stock intake manifold, the blox doesn’t require quite a bit of stuff from the stock. What I transfered over was the IVAC, the white sensor thing (don’t know what its called), throttle body, rubber gromments for the fuel injectors, fuel injectors, fuel rail and I think thats it.
The frustrating part I came to was when I was trying to put the fuel rail onto the blox intake mani. You need to have washer, something the size of maybe .125 in height. This should be maybe two washer. You will also need three bolts that will fit in the holes to hold down the fuel rail. Blox, unfortunately, doesn’t provide any of this, which is required. I’m assuming the newer integras don’t have this type of problem since the fuel rail is significantly different (the box shaped ones). It should all fit together. I used some left over bolts I had from a previous engine. (Last Picture)
Next, you will have to take off the fuel thing on the right of the fuel rail . You need to move the spout part closer to the engine and farther away from the firewall. It simply will NOT FIT if its not moved forward. I used vise grips and a bolt to hold the piece while I carefully moved the spout forward just a little. You can now then install that back. (Second Picture)
Then on the back of the Blox IM, there is only one hole coming out for the two dashpots. What I did was I plugged in one dashpot and on the front of the BLOX IM, plugged the other dashpot into that one. You will have to have a longer tube to make this work. (Third Picture)
The throttle cable, you will install the metal bracket, but only use one of the holes so tighten it down so it doesn’t move. I’d hate to see that move or get stuck while on the freeway. (First Picture)
I had to remove the hose from the brake master cylinder from the metal bracket that holds it so it could reach the spout in the back of the Blox IM.
Also I’d suggest (well if you live in warmer climates) to get rid of alot of the water lines. I took the water lines going to the throttle body off. Got a long piece of hose and connected from the head to the IVAC directly. You don’t need that other piece on the stock IM so you can get rid of alot of that. There isn’t a place to put the FITV so I just took it off completely. I’m not sure if some might have problems in colder climates. Not sure how to get around to making that work. You will also notice that there is one large water spout and a smaller one attached. I closed off the small one with a short piece of hose and the end of that hose stuck a bolt in it. I used a clamp to make sure the bolt didn’t come out.
Then put it all back together and it all should work. I would suggest buying longer vaccum hose and replace all of the hoses and get rid of the metal pieces since you don’t need those anymore. I have noticed that the intake I have on the car is definately louder. The runners on the blox IM are alot shorter so obviously going to be louder. Will follow up with review later when I get more time to drive.
So you will need:
Some type of manual for reference (helms, chiltons)
longer vaccum line hose
3 bolts to hold the fuel rail
washers
basic hand tools (12mm, 10mm, 14mm, 22mm wrench/sockets)
Vise grips or plyers
Hose to reroute water lines.
Some bolts that will fit in the water line hose to make a closed water part.
Rubber gloves so you don’t smell like gas afterwards.
