Uh huh, and after you've finished with all the time and money fabricating everything, getting the much larger Mk IV turbo assembly to fit next to the 13b engine in an already cramped engine compartment, and then getting it work properly, wow, you'll sure have saved yourself a ton of money over the stock Mazda setup...

 

Possibly true, but it will still have the proper balance, not have the steering fucked up, and you don't have to run a fugly hood.

I fail to see the point of doing this twins project at all. Why spend so much time and money doing something that likely won't have that great of an end result, if it can even be done?

 

Honestly girlie, I think you're living in la-la land.

It's difficult enough getting a 20b in an FD to run and work properly. Let us know when one of your projects (either 2jz 'swap' or supra turbos) is running and sorted out. I'm thinking we'll have a new president in office by then

 

Part of the point of my previous post. You'll have to move the passenger side front suspension and tire assembly outward a bit, but hey, you're saving money, right?

Not to mention the exhaust energy heat loss you'll incur from the added hardware...

 

If you actually read the posts, you'd have noticed that I wasn't declaring this to be the end all to the case..

Merely suggesting and playing devils avocate. Most people in here just reguritate what everyone else says, not really knowing or ever tried, but because one person posted it 10 yrs ago, that became law.

It's easy to sit in front of your computer shooting down ideas....

Maybe someone new in the forums can make it...you thinkg all the stuff that is available now was available 10 years ago...No, someone took the time and effort to make it, technology improved.

if it was up to you guys, we'd still have carbs...because FI would be haaarddd..

 

Since when does gender matter?

But now that the cat is outta the bag...This is not Damari, its her Bf.

I accidentally started the post with her logged into rx7club....

I do know a bit about cars.. I wish I knew more about the Rx-7's

mine: 1,147rwhp 8.62@168mph with a little 5.0 Block.

 

No, because FI actually has significant benefits. And doesn't involve trying to put parts designed for one car (with a completely different motor) into another one.

 

That is because they are running the HKS Twins which are huge... you could probably fit a sinlge in there without having to run that huge hood..

I think the fact remains...No one has proven how much it would cost..time yes...but actual money out of your pocket...No...

Which was really the whole point of this thread.

If we could figure that it will cost you $3,000 lets say...and you'd need 40hrs of time, and you could make 450rwhp opposed to the BNR's at $3600 and 5hrs of time...

Then you could say "Not worth it" or maybe You have time and want to save the $600 and it's worth it to you..

That was my whole intention of this post...not to get into a flame war over what it right and wrong...

 

So no one has ever taken a carbed motor and turned it into FI from another motor?

 

Miss Stated. That's a pretty name! J/K
You can do anything you set your mind to, but is it worth it? I thought about putting a spare FD turbo I have on my son's Integra, but for the cost of a custom manifold or an "adapter plate," I could buy a turbo that would fit. No I'm not making fun of you for the adapter plate, I actually considered designing and fabricating such a beast. Not worth it.

 

See like 3 above posts..

The other thing to think about is quanity...

If i said we could make 20 sets of adapters for $500, stock supra turbos go from $200-$500 and lets say another $500 for the rest of the pipes...

And we are talking $1500 to possible have something near the Bnrs...then it could be worth it...but if no one does the research and shoots it down, then how do we know.

 

Here are the specs for the turbos.

http://www.melett.com/pdfs/Toyota/Toyota%20CT12B.pdf

 

Any efficiency graphs? Things like that would be helpful to see where this might end up. Just because they make 450hp in a supra does not mean they will necessarily make even close to that in a FD. Get more info on the turbos and you can probably go into some fun calculations to ballpark it.

I'm a firm believer in that you can pretty much do whatever you want with enough money. But it may not necessarily be worth it.

 

It's far easier to sit in front of a computer and continually post up simplistic justifications for a conversion without any real research into the technical, logistical, and practical ramifications of said conversion. Some pretty experienced members are posting their opinions on the practicality of your suggested conversion, while you yourself state that "I wish I knew more about RX-7s." Shadetree engineering is a pretty shaky platform to stand on when you're dealing with forced induction engines. For instance, statements like this:
Really? So just because a turbo from one car makes X amount of hp, you should be able to just bolt that on to another car without issues? Ever hear of the terms "A/R ratio"? scroll area? inducer/exducer ratio? compressor efficiency area? vane angles and their relationships?

Sure, you can bolt up any ol' turbo onto any ol' engine. Getting it to work properly is the one aspect that no one ever really gives thought to. Just because there are tons of turbo kits available on the aftermarket doesn't mean they're plug-n-play items.

Anything can be done with enough time and money, and while you state that the intention of this thread is to save money over the aftermarket turbos available, you must realize that time spent sorting everything out cannot be counted out of its effect on the "money" required to do so.

 

If you got the time and money let us know the results.. Who knows?

 

Too much mass?

 

Call it what you will but with some knowledge and experience it's very easy to shoot down dumb ideas. That's what knowledge and experience gets you: sense enough not to waste your time and money trying to implement a dumb idea.

 

Does a T78 turbo for a Supra differ from the T78 they offer for the RX-7? I know the manifold will be different but the actual turbo itself?

Tim

 

Believe it or not, this topic has been covered - and in depth - ad nauseum. From oldest to newest...

- https://www.rx7club.com/3rd-generation-specific-1993-2002-16/supra-twins-fd-32836/
- https://www.rx7club.com/3rd-generation-specific-1993-2002-16/blitz-jza80-upgraded-supra-twins-rx-7-possible-86019/
- https://www.rx7club.com/3rd-generation-specific-1993-2002-16/supra-turbos-fd-92260/
- https://www.rx7club.com/3rd-generation-specific-1993-2002-16/using-supra-twins-fd-345040/

I *seriously* investigated this a while back, and the problems of trying to get them to work, fit, etc, made it *well* beyond reasonable and/or worthwhile. You'd be *much* better off simply making a custom manifold for the BNR Stage III's. Why? First, the Supra twins are actually a bit *smaller* than our FD twins. But their runners are designed so ingeniously, and their manifold is capable of very high flow that they're very effecient at higher boost. Our FD twins have an *incredibly* restrictive exhaust manifold design that essentially bottlenecks the whole system robbing you of what the turbos maximum potential really is. I BET you that if someone were to design a better high-flowing exhaust manifold, you'd see GoodFellaFD3S's car pushing VERY close to 500rwhp.

My $0.02,
~Ramy

 

Gender doesn't matter, but when the poster has 'yes, i'm a girl' over her avatar it makes it easy to poke fun.

Looks like you have a very fast mustang, congrats.

Re: the BNRs, I have seen some extremely misinformed prices tossed around in this thread. They cost $2350. For more info, surf over to www.BNRTurbos.com and click on import, mazda, fd.

 

The Hitachi turbos arent that unreliable, and they max out at around 400 rwhp which is probably all an rx7 could get out of a set of Supra turbos any way. I fail to see the advantage to installing Supra turbos.

My last set already had 100k miles on it when I installed it. I put on another 60k and changed them out. Turned out my problem wasnt the turbos but a huge exhaust leak from a failed turbo to manifold gasket, so my 160k mile set was still just fine.

 

OT: Rich, clean out your damn PMs, then PM to let me know.

 

ya she put that cuz people pmed her like "dude this, dude that.." and sometimes is works in her favor lol....

Anyway...I coulda swore they were in the 3K area,,,but my bad...I guess for that much it prolly wouldn't be worth it..i was thinking 3K range for some reason...

 

if you look at some of my links...its to people putting down 500+rwhp and dyno sheets to prove it.

 

WTF...Nice thread...Craig!!! Don't worry guys he is not going anywhere near my 7 with supra turbos. Since the Supra has stock parts sitting around he thinks he can just throw them in my car when he is bored. I enjoy working on my car with parts made for it. And certainly don't need 500hp.

(Mods feel free to close this thread!)

~Damari