I just ripped off my cats today. I am scheduled to go into the shop tmrw and get a strait pipe put in. I have a 88n/a vert. I was wondering if anyone can give me a good strait up answere on keeping my ports working and not just wiring them shut. I have searched this forum for about two hours now and havnt seen any real definate way. I was wondering if any one has accomplished this and can give me some good tech advice on what to do. Thanks so far you guys have been a great help!

 

thats me bro i have mine hooked up to the ACV vent hose, you get a small drill bit and drill a hole in the bend of the vent hose, get the 6PI hose and stick it in there and make sure it goes in towards the ACV so it gets the air, then use some kind of stuff to seal around it, i used Shoe Glue, it worked great, still stickin after 8 months it works perfectly, they start openin at 3800 and fully open at 5000, let me know if you need any more help

 

wouldn't be easier to just disconect the silencer from the ACV, and connect the 6 ports hose directly to the ACV?

KNO

 

Good thinking agent d, hopefully i'll change mine to that someday.. If you really wanted to get fancy, you could hook it up like knonfs says, but put in a tee.. have the 2 ends of the tee facing each other be the straight through part, then have the 3rd end go into a small ball valve. This way, your ports will be infinitly adjustable by how much air you vent through the ball valve. Ports opening too early? open the ball valve a little. Too late? Close it a little. Well, thats how i plan on doing it when i get my headers.



~Jesse

 

I am going to give the ballvalve trick a try if anyone has done that one could you let me know and can i email you if i have problems?

 

See the one inch hose b/t the airpump and the acv? Drill a 1/8 inch hole in it. Get a plastic 3/16 pipe from PepBoys. Shove it in the hole you drilled. Get enough vac hose to reach from this newly created pipe to the pipe that feeds the actuators. Connect it. Now reach over and pull the blue connector off the Relief Solenoid valve on the drivers side of the engine. That makes the acv relief valve vent all the time. When the engine reaches around 3500 rpm the ports WILL start to open and be fully open at 5000. The 3/16 pipe that you insert into the one inch hose will not come out if you drilled a 1/8 inch hole. Put some rtv around it if you just have to. That air pump is gutless. Little pressure to be had. Later if you want put a solenoid valve in the line b/t the airpump hose and the pipe that actuates the ports. Must be a normally closed solenoid. Use the signal from the relief solenoid valve to trigger it(refief solenoid signal at 3500rpm). Both methods work for me. No guarantee implied.

 

I think you might have to put some sort of restriction in the acv relief line. The air pump probably wont make enough pressure with all the air escaping freely out the silencer. Thats what i did and they start to come open at 3.8k and fully open at 4k

 

Ok one more question? What do i do with the y pipe after. It connects to another large hose almost as big as the one between the airpump and acv. The large hose goes to the back of the engine. Do i need to plug that or just leave it open? And I couldnt find the blue plug you are talking about is it on the 88 converts? Thanks so far for all the help

 

That's the split air pipe or hose. I leave mine open to the elements. Hurt nada. The engine should have at least four solenoid valves on the left side of the engine(drivers side). There should be a blue one there. Next to it is a yellow, gray and orange one. And no, I do not have to restrict the exaust on the acv. It seems the airpump actually has a little grunt more at higher rpm and will start opening the valves around 3500/3800 rpm. If one puts a solenoid in line with the vac hose that goes from the hose b/t the airpump and acv, and uses as a trigger the signal to the relief solenoid(blau), then the aux actuators will flip open in a heartbeat at 3500 rpm.