Hey everyone... Me again...

Just wondering what should I be seeing if the WG was ported and properly welded as it should be when going NON-Seq? Also if my setup is not as it should be could that be a reason for only getting a max of 7lbs?(Yes the pills are there)

D.O.



ThanX in advance

 

You do not weld the waste gate then it will not work .You can weld the prespool door shut and the big turbo control door open .Or you you can send me the four cast iron parts and I will do my Rich Mans Non Seq modification on it . Then it will flow better and spool faster than the normal non seq set up .

 

You don't have the wastegate pictured. For the full nonseq setup, you cut out the flapper door in the manifold, weld the precontrol door (the one pictured) or cut that door out as well. Removing those doors will leave holes in the housing and manifold, and those should be welded closed.

Most people port the wastegate while they have the turbos apart. This doesn't require any welding. The hole under the flapper is just enlarged to flow more exhaust gases past the turbines.

 

Ok so here are the pics. Hoot Hoot! I guess this can eventually be put somewhere so people can have a visual of what exactly going Full-Non entails when making reference to the Wastegate and the Precontrol door(s).
So to make a general inquiry.

1. Wastegate should be ported
2. Wastegate door should be welded shut or cut off?
3. Prespool door should be welded or cut off?




ThanX guys and ladies.

 

im curious as well. buying stock seqs soon. ive thought about going non-seq. what supporting mods should I have?

 

^Money, downpipe, boost controller, PowerFC basic needs for every FD owner.

 

once these people pick up this dirtbike im buying a pfc, already have full exhaust and such.

 

OK soooooo still waiting on a few answers to original question about the gates...?

 

 

"Removing those doors will leave holes in the housing and manifold, and those should be welded closed."

Contradiction...

In picture #1 Precontrol - What do we do to that?

In picture #2 Wastegate - What do we do to that?

That's about as simple as I can make it. Really appreciate this guys. ( Doing R&D in the meantime )

 

^

 

You DO NOT weld or cut off the wastegate door that would be bad The only thing you do to the wastegate is port it. The other two door are the ones that you cut off or weld.

 

bad things are about to happen.

 

ok so this guy can be welded shut if I am reading this correctly?

 

No that one gets cut out or wleded OPEN not shut.

 

Ok see now im confused... This is the Prespool door... Since im running Non-Sequential isnt the operation of the prespool actuator irrelevant to the setup???

3. Prespool door should be welded or cut off?
Precontrol door can be welded shut, welded open, or cut off. Doesn't make all that much difference. Search the forum for more info on this as well. Cut out the turbo control door in the manifold.

 

Yes the prespool actuator is not needed any more.
What write up are you following to do this

 

Not specifically from a write-up. Talking from friends who own 7's ( mostly Rican ) who have converted to Non-Seq.

And yes I said "Rican" because we all know how much Rican's love their 7's. And yes I'm part Rican so no one should get their panties in a bunch for the phrasing. Gotta keep it PC just "in case"...

 

+1

 

Grind the hole on the right (wastegate) ALMOST to the sealing edge of the door. You don't want to go past the edge otherwise boost will build slower.

 

^----- yeah thats done already. That was about an hour job expanding the size of the hole. Not bad actually.

And no nothing bad is about to happen because in order for something bad to happen I would have to put it back together without making sure that its done completely and correctly.

So how bout assisting maybe, because it's obvious that getting opinions from about 1,000 people is just going to lead in circles and endless debate.

 

Here read this http://fd3s.net/non-sequential.html#NON and I recommend searching for the other write ups and reading them too before you go any farther.
Good luck

 

http://autosportracetech.com/RX-7/Tu...BigPicture.htm

The exhaust flow from the prespool door goes directly into the secondary turbine.

If it's welded open, nothing will change as if it's sequential and both turbos are spooling.

If it's cut off and the remaining hole welded closed, nothing will change either (I have no hard evidence, but my logic says welding it open will flow better, hence why I went that route).

If you weld the door closed, exhaust flow will go from the manifold runners into the turbines.

Play with the precontrol door a little and see which one makes more sense to you. I seriously doubt there is any noticeable performance benefit over any choice though.

 

Thanx Team... Re-assembly is today with the prespool door at open. I'll let you know ho things go.

 

well worth the money....I have it and David does nice work