has anyone tried runing a tII manifold on a n/a motor, if so can you explain the pros and cons, I bought a 91 gxl the guy that owned the car used 3rd gen housings that are ported, and street ported the intake side but the car feels like it has no torque,by the way the car is missing the air pump and acv also the car has a full racing beat exhaust,the six ports are wired open and the valve on the manifold is also wired open,can anyone help please.

come on poeple i really need your help i'm getting beat by every thing on the road i just got beat by my friends 96 civic single cam co v-tech,and i just foud out that the car has computer chiped by jet performance,i've been amember here for a while but when my 88 turbo II was stolen then i just did'nt get another rx till now and this car really has me stumped,i'm not getting any codes it almost feels like the timing were not advancing.

NA rx7s are slow. Put a turbo on it.

Like a broken record, these guys.









So anyways -



I'm not sure exactly what you're asking. What is your EXACT question.





I've done it on an N/A car, and ran it N/A? More power than stock for sure, but that's just by feel. It was like factory torque actually leading up to about 5500ish, then it just kept producing power and pulling harder until red. But I also had exhaust and no AFM (which I believe is a big flow hinderance).



You'd be ditching the six ports entirely doing that, they would always be open. The flow sucks ass trying to match up a TII LIM to a 6p block, but it works. And it works better than a factory manifold.

the persom i bought the car from gave a manifold already ported out to match the 6 ports,he was going to make it turbo but he got an rx8 instead,myy question is if i put the tII manifold will it help me get more power or will i loose power. by the way thanks for helping.

[attachment=45144:Picture_025.jpg]here is a pic of the car

Theres no point in swapping the intake manifold unless you're strapping a turbo on as well.

I had a T2 Upper Manifold on my 6 port (when I converted it to a Turbo motor). Now I have a S6 UIM on my 6 port motor. The S6 overs straighter runners and a larger Throttle Body, But again this is for a Turbo Motor. I like the additional timing of the 6 ports so I used 6 port end plates when I rebuilt my motor.



Your motor is low on torque due to the 6 ports being open all the time. The 6 port offers additional intake timing simular to a mild bridge port. While this is great on the top end the bottom end suffers.

sounds like a lot of work with no real benefit

Philosophy class is down the hall, kid. Get going.







Listen Rem tec, if you got the LIM already port matched, you're really only a small part of the way there. You're going to have to worry about the throttle cable, vacuum rack, relocating the AFM, etc. It's really not worth it unless you aren't using a factory ECU. Chances are with an aftermarket computer you will gain the ability to ditch all the factory components standing in your way, and you can adjust your fuel maps to the changes your motor will see from a completely different breath. I only see you running into a heap of small problems along the way with the factory ECU, while never having the proper fuel map to get the full power out of the swap. Mine was a breeze since I wasn't using the factory computer anymore, which is why I did it. TII intake sitting around - Hey I own a die grinder. It was no work to make it happen.

hey...where in florida do you live? that car looks familiar. im in orlando.



i could help you with the swap if your close. i've done it a few times. takes maybe an hour. and you already have it port matched wich is the only hard part. its a noticable difference. never had it dyno tested. but people still argue the UIM from a FD to TII lower. and that has been dyno proven.

i have an fd manifold on my tII. i think it just looks pretty

thanks for all the advice guys, i was talking with the ex owner of the car and now he gave me the turbo,wireing harness and computer from a stock s5 TII,he told me i needed to get a TII front cover,he also told me that i might have problems because it's 6 port.and that's why he sold the car

i was up in orlando a few weeks ago i went to orland speedway,i live in n ft. myers

Pardon me? You're giving an opinion based soley on a 'butt dyno'. I've had experience dynoing and flowtesting almost every rendition of 13b and I can tell you with utmost certainty that you will gain no power increase by swapping to a turbo LIM and UIM on a 6 port motor if your VDI and 5th and 6th port actuators are in proper working order. Try being patronizing to someone else.

Show me

There's your problem. You're only making proper power above 5500rpm, EVERYTHING below that is suffering from the six ports and VDI being wired open. Before spending a bunch of money on mods, I suggest you FIX your car before spending a bunch on stuff that probably won't make it better.

Back atcha bub, I'm not the one getting my panties in a twist.

It's all good man, if you focus on the details, I was saying it's not really worth it. I enjoyed doing it for the small amount of work it was, and I enjoyed the result. However I had different circumstances.



Relevant information for what he was looking for. That's typically the purpose of asking questions, yes?













If he wanted to hear that he should just go turbo, then that's something that any one of the 30,000 members here could tell him without a doubt will make more power. I'm sure he appreciates your input however. Maybe next time you won't be so shy?

just want to tell you guys thanks verry much for the info,i will get a air pump and fix that problem.