ok i am probably going to be taking my 5/6 ports and rods etc out unless there taking out the acv, airpump and egr valve will not affect them opening and closing, although im pretty sure the acv will affect it since it is right where they are

 

No, it will not affect the 5/6 ports. You do have a block off plate right?

 

You can take the airpump, ACV, etc off IF you have enough backpressure in your exhaust system to operate the ports normally. I'm assuming you still have the split air pipe running back to the cat, and the feed hose running from the split air pipe to the port actuation line behind the LIM?

 

everything thats on there stock is still on there, i did get blockoff plates for the acv, egr, bac(not putting this on tho), and omp (not using this blockoff plate either)

i may or may not keep the 5/6 ports , im just not sure...u say i can still operate them without the acv, if the acv does not control the operation of the 5/6 ports then what is the purpose of the acv being mounted to the lim ?

im not sure how much backpressure i will get but the exhaust is stock , i dont know how good of condition the cat is tho, i know the cat i took out of my parts car was completely hollow and see thru which would probably prevent me from getting enough backpressure to open the ports..

and does removing the 5/6 ports give you 10-15 hp ? i have been told it gives you 10-15 hp on top end but lose low end torque/power

 

I did this on my 88 n/a, but I used the air pump to open the 5/6 ports. I installed the r/b street header with the Apexi n1 exhaust with duals. No I didn't have even close to enough back pressure to operate the ports. If you plan to use the car primarily on the track, you can keep the r's up. If its primarily for use on the street, you are better off keeping the 5/6 port operation. It helps get you off the line, low end torque--and no I don't have a catalytic converter, but I also don't have emissions inspection either. The car runs great--kinda loud, but great.

 

im running it without the airpump so i would need to have a way to run it without the stock airpump, my car is for the street but i dont have the money for an electric airpump so i may have to just take them out, maybe i will later put them back on to see the difference but i already have a shop thats going to be working on getting out the screws so i can take out the rods and block them off to get more airflow, surely i will lose low end torque , but when you are driving i heard its only like having another person in the car ... and if youre racing ( reving over 4k...) this is where the powerband starts on a rotary so youre only addingto your acceleration, surely it wont help street driving because thats all below 4k but i dont care so long as its still streetable and i know alot of people with them taken out that ive spoken to on here

 

I dont have emission either, so I have no cat just a straightpipe. In oder for my port to work I have to control them electronically. Im in the process of doing this mod http://www.teamfc3s.org/forum/showth...threadid=42367 just waiting for the rpm switch to come in. I have every thing else list on the post link. Nice writeup by the way, do you agree? thanx turbo7mm.

 

The 5th and 6th ports just add to low end power. Removing them gives you more topend. If you're using a stock exhaust you have enough backpressure to open them, obviously. Nothing really is lost by removing the Air Pump, ACV, and EGR, except for the devices themselves (and its weight reduction).

 

i would need to block the dump hose that went from the split airpipe to the airpump (im assumingthats where the bigger hose goes ? )

and even if my cat is gone (assuming it is), i would still have enough backpressure for them to open ?

im still deciding ifi want to take them out or keep them in, ive never driven the car at all yet (putting in rebuilt engine), so i wouldnt know the difference from keepingthem in vs having them out

Which do you prefer and how noticeable is the top end gain (if u have done this) ? i knowu lose about 10hp/tq or so in low end and gain 10hp/tq in highend taking them out

 

yaeh im wondering the same thing. Im going to hollow out my cat while im waiting for my rb setup, am I going to have enough back pressure to open them up!?

 

If you have a S4, suck it up and either switch to an air pump driven setup or an electronic setup. The Racing Beat presilencer has a pickup, but... I'm not convinced of when it opens them.

I have manually actuated 6th ports (electronic, but via a switch right now - I don't have an RPM switch yet). I can *really* feel the difference down low (below 3000 RPM) with them open vs closed. The engine lacks ***** in city driving, really noticeably.

I have the Pineapple inserts (well secured), and from 5k on the ports make a huge difference.

-=Russ=-

 

o **** i have 3" no cat 4" tip dump hose not on it ( but is blocked up )

what do i neeeed to doo

 

how do you wire up a switch to them syonyk? is it wired to an electric air pump?

 

ive heard some bad things about the pineapple inserts, even someone who had pineapple put the inserts in for them ended up having them come loose and bang against the rod and go into the engine and cause damage..

i like the idea of the 5/6 ports but i dont like the idea of them falling out, and i also dont have money right now for all the rpm switch etc, taking them out is a bad idea ? some people tell me they dont mind it at all... i just want to get my car started,

i broke a bolt inside the waterpump where the bottom bracket goes for the airpump so i really have no choice but to run without the airpump, beside i got a dual pulley,, i have lim , one that is setup for 5/6 ports and one that has them taken out....

i really dont know what i want to do still since ive never felt the difference for myself, the car will be mostly street driven, but i do hear it makes a bit of a difference on top end/ peak power having them all taken out....and i still really dont like the pineapple sleeves after what ive heard about them.... i wish they could just make the entire actuator instead of just a sleeve, personally i think that would be much better

 

It only effects your ports if your no longer running the airpipe from the cat, like me. But im in the process of doing this http://www.teamfc3s.org/forum/showth...threadid=42367. I have all the parts I need, just waiting on the rpm switch it should be in this week.

 

I'm not worried about my inserts. They're well secured.

If you're ultra-paranoid, you drill a hole through the back of the sleeve into the insert, and use a small screw to hold them in place.

-=Russ=-

 

is it ok for me to put the airpipe back on if i have no Cat ??