2DoritosOnAStick

I agree. The six ports are designed to keep high velocity while engine speeds are low in an N/A configuration. You will find that under positive manifold pressure, the extra ports are simply a restriction. Velocity is important in any engine configuration, but the T2 stock ports (which flow more), are a major restriction to general flow in and of themselves. Combine this with the restrictive exhaust housing/wastegate, and "twin scroll", and you not only have velocity, you have BACKPRESSURE, lot's of it.

Porting a wastegate will NOT allow you to run 2 psi. Even a 60mm external will come with a minimal spring tension of ~7psi. A boost controller has NOTHING to do with lowering boost. The lowest boost you can run will be with NO boost controller. The boost controller can only RAISE boost.

What is that supposed to mean? Anyone can do anything in relation to their knowledge and resources. All it takes is a bit of time. A couple years ago I was in the same position he is.

Yes, I'm selling a S4 turbo and manifold. The turbo has a ported wastegate, and ported exhaust housing. Let me know if you want it.

Rexman13b: Read above my post on what RICE RACING recommends. All his findings are both calculated mathmatically, and/or tested via engine dyno. People get all worked up about higher CR rotors when it's not a big deal. CR and PR do the same thing. You just have to know what PR to run to create the same effective CR as with 8.5:1 or 9:1 rotors. The timing gives additional protection, and the N/A ECU fires timing a bit advanced of the T2 models, so you have to retard it.

rexman13b

iTrader: (7)

Thanks Dorito, finally someone that supports the conversion. I find that everybody if so against this and I don't know why. Maybe they've tried it and blew their engine a couple times. Well not gonna happen here. This will be coming around this winter so guess I'll check all you doubters in the rear view later as I pass the finish line. Peace.

VtekEater

Just do it its easy
BTW buy a book by Corky Bell "Maximum Boost" or something like that, it will help you out.
Also I was running mine at 10psi for a little over a year and never had problems.
Then I got my T2 motor and blew that in a month, but it did spike to about 22psi on a t04, so thats expected
Oh well easy come easy go

Aaron Cake

iTrader: (1)

I'm not "against" it at all. What I'm against is yet another person assuming that this is a easy thing to do, with no real knowledge to back it up....Basically, I don't want you to go through all this effort and cost, and then blow your engine.

dre_2ooo

Just like communism... works in theory



















;






















;

















Wait a minute, no it doesn't.

Aaron Cake

iTrader: (1)

LOL....Or perhaps more like Microsoft....Hmmm....

selanne8

i'm surprised no one has suggested supercharging instead of turboing. it's way easier to go that route if you just have to have forced induction on your n/a.

john

Drakk0r

Exactly how is it easier? No kits are currently made for our cars. Anything still sold is left over stuff that hasnt sold yet.. The only kits I know of that are still available (though still hard as hell to find) is the Adkins kit, which requires you to switch to a carb. The Mariah Kit hasnt been made for quite some time.. Not to mention, turbos are cheaper, and can support more power.

rexman13b

iTrader: (7)

Thanks guys for all the info, I just got back from morristown today. I got together with Kevin Landers, who is the man when it comes to rotaries. We talked about the conversion and I realize the difference between the two blocks. As of right now I'm going for the whole t11 drop in and just rebuild my n/a motor and sell it. Did a compression check today and it's at 90 psi on both chambers, so guess what it's about time for a new engine. YES! I'm in the process of finding a good t11 engine to rebuild, I hear there is one around here but gotta find it at the junkyard. So if anybody has a blown up t11 they could part with for a reasonable amout let me know ASAP. By the way if anyone had a wrecked t11 that would be even better.

tIIforever

you might be able to put a lighter wastegate spring in maybe? (just a shot in the dark)

2DoritosOnAStick

I agree with you. I simply do not like hearing "If you have to ask, you cannot do it". That is total bullshit. If you warn someone EXPLICITLY that this conversion requires alot of work and close attention to setup, and they do not heed your warning, they are idiots... simple as that.

Drakk0r is doing this to his car. I am giving advice, and hearing his updates. He is working very hard, and both of us have very intimate understandings of rotaries and turbo systems. This WILL work, and it will be quite a bit faster than the majority of the T2's out there.

Sometimes it amazing me at how much mis-information this 2nd gen specific forum generates (this is not directed at anyone, just a general observation). My philosophy - Tell people the facts, and let them make their own informed decisions.

Bambam7

Wow- there are some people on this thread that have been real A$$holes!! (You know who you are.... )
Look- this guy is trying- if it's by trial and error- so be it, what's it to you??? Geez.

There are guys who are very knowlegable in this- like Aaron Cake- who is right in the middle of one. I myself have just started it.
The conversion in itself- in mechanical terms, is NOT hard. There is however- like 2DoaS said- a lot of prep, and attention to setup.
You just need to know EXACTLY what you need to do, and what parts you need in order to NOT blow up your engine. (read: FUEL)
I'm sure everyone who wanted to do this conversion wasn't BORN with the f^&*ing abilitiy to do it. You have to ask questions- and learn from that.

I will use myself as an example- I must say I know a good chunk about doing up an N/A engine- I can get every last HP out of it- from tuning the scavenging pulses in the exhaust stream to matching reversion waves in the intake. My N/A run's low 14's, with FULL weight+stereo. (almost 3000 lbs!) Yet I started a post a while back about what the stock BOV was??
OK- I am learning about turbos- and am not afraid to ask questions!
Anyways, the basic conversion is not hard- but learning about what makes it tick can take some time, cut rexman13b some slack....

Well, I'm sure I'll hear it now, but so be it.
Dan

Aaron Cake

iTrader: (1)

Am I being an *******? I so, then I apologize. It is just very frustrating when you have been reading this forum since the beginning, and the same old topics keep coming up, with the same questions, and the same responses...So I tend to be a little mean to the people who do not use the search feature, especially with THIS topic since it is the STANDARD newbie question.

Quite honestly (and not to brag), I was born with knowledge of all mechanical things...I can very easily look at "A" and "D" and figure out the "B" and "C". But that's just me. Not everyone can do this, and it sometimes frustrates me to have to explain something to someone that seems so obvious to me.

So, the basic thing I am trying to say to everyone is to learn about your engine, about turbo systems, and then decide if this is right for you. Above all, SEARCH...I believe you will find most of the answers there, especially with the recent discussions Bambam7 and I have had on this topic.

Also, I tend to err on the side of caution when dealing with someone else's car. The last thing I want to see is a topic like "Aaron Cake told me how to turbo my car, and I blew my engine". We don't need yet another "unreliable rotary" story, and another car headed for the wreckers.

Bambam7

Nah, not you! There are a few people that seem to disagree, complain, and trash people's ideas in just about every post....

Anyways- what kind of piping/tubing are you using for your oil lines?

Chris Ng

I think Mr. Bambam is refering to me Aaron..
Apperently I get on some peoples nerves when it comes to replying to topics like this..

Shrug.. I guess sometimes I forget that the majority of FC owners are young kids working on their cars for the first time.. They have yet to make enough mistakes to realize what's right, what's wrong.. what's reliable and what is not..

Aaron Cake

iTrader: (1)

Just generic fuel injector hose...Though I just looked at the hose and it seems to be rated for only 50PSI, so I may need to find something else....Stainless braided hose isn't too expensive, and it would hold up fine in this application...But I'm sure the fuel injection hose will be OK...Now that I've said that, as soon as I start the engine the oil line will blow and spray oil all over my nice clean engine bay...

Latin RX-7

speaking about going turbo, a friend of mine is going to swap his engine and basically everything from his rx-7 to drop a 327 vette engine....well he's going to give me everything from his rx-7 turbo II..the question is should I do it? and is it worth it?.......the car only has 100,000 miles

Bambam7

Hmm... 50 PSI.... Those things are always underated though- of course, a turbo oil line failure while you are driving would be somewhat catastophic.
Well, most cars that I have seen use metal and rubber lines for the oil (including my fathers Volvo)....
I will be looking around for something a little higher rated just for peace of mind- if nothing more. Small price to pay.

Ya, I get frustrated too seeing the SAME posts again and again... but hey, that's the breaks when you have a forum with a lot of kids getting on here for the first time.. and all the misconceptions and misinformation we have to wade through...
Geez- listen to me - sound's like I'm OLD!

Anyways, this is my LAST post with any content not relating to mechanics... It's better off keeping my head out- don't really want to offend anyone, (sorry if I did- I was just tired of seeing the same sort of stuff...- I was also sloshed when I wrote that reply! (home after the bar Sat night!)- so, back to the subject at hand (for good!)

Well.. the spacer is almost done, it'll be finished, machined and polished (yes- polished!) by the end of the week... and I and getting the exhaust piping on tuesday.
The only things I am waiting for now are the turbo (yes... the friggin turbo.... my connections keep falling through!) and I have to weld the 2 intercooler cores together.
SO I should be all set to break my tranny in less than a month!

rx7_turbo2

I have no problem with people asking beginner questions, even if the questions have been asked a million times before. That's what the forums for. The problem is alot of people who think they know alot (you know who you are) but don't know jack have cluttered the forum up with mounds of misinformation and it's getting harder and harder to wade through all the trash.

I could do with out threads about zip tying the flapper door of the AFM open, or bolting on a leaf blower to an n/a.

Bambam7

What about a hair dryer?
I hear conair makes one that'll boost 8 psi, and it comes with octane boosting hairspray!!

rexman13b

iTrader: (7)

For you that think I am I kid asking dumb questions, think again. I'm 32, j/k I'm 19, and I don't consider myself a kid thank you. About the post now, I know this question has been asked millions of times but I really don't have the patience to wade through all those old threads looking for info on a turbo conversion, I knew it would be just easier to ask so I could clear up some big ?s I had in my mind about this mod. I don't think I could've gotten that from reading a post that is like over 3-4 months old. So I decided to pop the big ?. I and I got everything straight now. Thanx guys!

rexman13b

iTrader: (7)

By the way I decided to not hold off on this project until winter, this will be done by august at the longest. I got 90 psi on both chambers this **** can't wait.

BadBoy

go for it and good luck on that project. im still trying to figure what iw ill do with my 90 vert...:P heavy sucker! needs a big power brother to back her up soo i gotta find her one hehe

Fred