mikeb

jason from jt-imports
posted pics of the trust which is greddy here in the states
do a search for the pics

labrat1123

LOL...failed is an understatement. Completely locked up the drive train at 40+ mph as we were leaving. Just glad I was BEHIND him to see it all.

When you getting it back?

Efini 8

OK My information comes straight from the TOP of Mazdaspeed, so this is RELIABLE info. According to an employee (engineering of forced induction... cannot say name) ... this info was relied from a good knowledgable friend of mine that the renesis can handle MINIMAL boost which means Under 7psi. At this time Mazdaspeed has NO plans on making any forced induction application for the Renesis.

Efini 8

dude... did you just pull this **** out ur *** or do you have solid information or documentation of this. Do not post it is not helping people! As I understand it... IF (a BIG IF)... any one is to develop forced induction for Mazda it most likely would be Mazdaspeed. Mazdaspeed did the protege. IF they are going to F.I. the renesis... they would have already - like someone said... or start with the renesis and slap on F.I. then use in on the track - if its successful, market appears prime, and other problems worked out, then MAYBE it will be. But I HIGHLY doubt this.

Omicron

I disagree, Efini. IMHO, Mazdaspeed is apt to be the LAST one to come out with FI for the '8, as they are an extension of Mazda, they have to be very careful with what they release if it could make the car die and Mazda look bad. Other aftermarket vendors don't have these constraints, and quite a few of them are developing FI as we speak.

Greddy will indeed probably be the first to market, as they DO have a unit done and in test under their European name - Trust. Check out this thread:
https://www.rx8club.com/showthread.p...ht=Trust+turbo and this one:
https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/turbo-kit-has-landed-9603/

chinx

sweet! greddy/trust is awesome! TWIN TURBO!!!

R&T did a short on greddy's twin turbo kit for 350z, said it was real good and real high quality. it boosted z's output to over 370! and it looked real nice, too

Efini 8

obviously none of you have the low down on the aftermarket import industry. greddy will not be developing a turbo kit for the rx-8 for mazda to put as a mass produced vehicle.

bureau13

Wait a second...Efini 8, are you saying that GReddy won't be making a turbo for Mazda to release as a factory option? Of course they won't...but nobody is saying that. There are really two issues at play...whether Mazdaspeed will put out a "factory" turbo version (and possibly kit) and whether some other aftermarket vendor, e.g. GReddy, will come out with a turbo kit for the aftermarket. I'd be shocked if the answers to those two questions were anything but "Maybe but no time soon, and absolutely yes," in that order.

jds

Omicron

My point exactly.

rotarygod

You can be assured that many aftermarket companies are going to offer turbo kits for the RX-8. They make them for Civics. Of course they'll make them for the RX-8. When the RX-7s (1st and 2nd gens) came out, it was less than a year before aftermarket companies had turbo kits for the non turbo cars. 2 seperate English companies made turbo 1st gens and one of them was even a dealer installed add on! The aftermarket makes what they know they can sell. I won't buy a turbo kit for a Civic but obviously someone somewhere will. The same thing will hold true for turbo kits for the RX-8. Someone will buy them.

Who the hell is so blind and close minded to say Mazda will not turbo or supercharge the RX-8? If you aren't a Japanese Mazda engineer speaking then you can't say this and be 100% sure. I remember several years ago that people swore the rotary engine would never return to the U.S. What's in our RX-8's? It is still far too early to speculate. Just because they (Mazda) hasn't come out and said it doesn't mean it won't happen in the future. The second gen RX-7 came out in mid '85 as an '86 model year. The Turbo II didn't arrive for another year. Some of you guys are saying it won't happen but you seem to forget that you are driving a 2004 model year car and it isn't even 2004 yet! Stop getting ahead of yourself. We don't know of one right now, it doesn't mean that the possibility doesn't exist for it to be there tomorrow. On September 10th did you think that the world would change the next day? Point taken yet? Did anyone honestly think Mazda would sell a turbo Protege when that car first came out? Trust me, Mazda has already run forced induction on a test mule RX-8. This doesn't mean that they will or will not sell it but they already know what will happen. By the time the public ever hears about something it has already been in development for several years. Ever consider that due to our Naziesque emissions rules that if a FI model does appear we may not get it while other parts of the world will? The upper model '84 and '85 RX-7s in Japan had a turbocharged 12A while the U.S. market got the nonturbo 13B. The European cars had larger intake and exhaust ports (and more power) than the U.S. due to more lax emissions rules. Australia got different cars. Every 2nd gen in Japan was turbocharged. They didn't even have a nonturbo 2nd gen over there, not even in the convertible! The 3rd gen RX-7 was still sold through 2000 as a current car with new variations in several countries but its run here only lasted for 3 short years ending in '95.

Stop speculating on something you aren't sure of. I am absoutely sure aftermarket companies will offer turbo kits. Greddy already has pictures and running cars in Japan. I am not sure if we will ever see a Mazda factory FI RX-8 or not but I still hope we will someday. If it does appear it will most likely be a small gain in power unlike the aftermarket goal of huge power.

Hybrid

Just to let you guys know.. I just came back from SEMA..

Gredddy reps said that the RX8 is on the top of their list for TURBO kit development right now and we will see something ready by TOKYO AUTO SALON.


From HKS, they just finished their exhaust and are dynoing now. There are no plans to develop a TURBO kit, just bolt ons for now, )(ie.intake ,exhaust, etc)

Paul(UK)

Motors magazine in Barnes and Nobles Bookstore said "they are developing a supercharger for the RX-8 maybe by 2005."

Omicron

Who was "they" please?

j-apex rx

The mazdaspeed version is supposed to come out with the supercharger. i also read that on the motor magzine yesterday.

BigGrin

YEAH OK

RX-Nut

Yup, I agree.. if you look at all the proposed MPS vehicles or even the current MPS vehicles, they have turbos or something done to speed up the engines...

Now look at that "supposed" MPS RX-8.. no turbos.. just fancy suspension, some bars, some plastic skirts here and there.. nothing of real substance..

I could be wrong.. go ahead Mazda, prove me wrong.

toykilla

im trying to gather opinions and info.. my fellow z owners didnt give me the answers i was looking for so i figured i will ask you guys.

spring /summer of next year i plan on getting some boost. i am definitely doing a turbo setup, but still debating single or twin.

what are the opions on a kit vs a custom setup?. i hear all the time that custom will yield more power but nobody will tell me why this is the case. what is are the main differences? and can you just make a few changes to the kit down the road to achieve custom hp #'s ?

please help

seikx8

I'm still a novice, but I undertand this notion "Money => power" :D

Custom setup give you options to choose the best parts combination, where as a kit will give you best buck for your money; then you will get into pro and con between different kit. In summary, custom will give you exactly what you want, whereas a kit will give you what the kit was designed for. As for getting a kit and upgrade later on, that fall into custom as well, but you are going into a different route to achive your setup which might dictate much money and time you spend to get to the goal you want compared to a custom setup.

So yes, custom setup in theory should give you much more power compared to the kit because you can combine all the best parts to archive that. But it can also go the other way around if do not choose your setup correctly and end up with less horsie than you're desired.

Oh yeah, don't forgot the tunning. . . and it keeps going and going like the never ending story before you blow your engine that is; in this case, for the RX8, you might not get too far since there wasn't much option available out there unless you can build and fabricate your own

syntrix

Sorry, don't know much about your Z!

rabinabo

The real question is how much money you have to spend on the turbo setup. I have absolutely no experience with turbos, but I've read a lot about the difficulties of making a turbo kit.

If I wanted an all-out racing monster (where money is no object), I would probably go custom (depending on the z turbo kit market which I know nothing about). If I wanted a safe, reliable turbo that has been tested, I would probably go with a turbo kit from a very reputable company (if available).

Basically a custom one-off will always be more expensive than a kit, no matter the application (sounds logical, no?). If you were building your own car you could never put as much into r&d as any of the major car companies because the cost is divided into so many units. It's as simple as that.

I suggest you read more about turbos before you go ahead with either option. At the very least read the turbo articles on howstuffworks.com. You can never know too much.

rx-7~rx-8

Go with SINGLE... there easier to work with, and makes more power.

Efini 8

why dont you go with the PROCHARGER supercharger for the Z... its intercooled and fairly reliable for FI newbies.

Omicron

So have you decided that you want a turbo for sure, or do you just want more power? I ask because you didn't mention a supercharger as an option, and I feel it's worth considering.

Both turbos and superchargers make power via a turbine in the intake tract, that "forcibly inducts" or pushs more air into the engine than it normally draws... effectively raising the compression ratio of the engine. The difference between the two methods is in what drives that turbine. In the case of a turbo, it's driven off exhaust gasses, and you must have a certain velocity of exhaust for the turbine to be spinning fast enough to make power. This means you have to have the engine's RPM's up to get boost, and also usually means you don't gain as much off the line.

A supercharger, on the other hand, gets it power directly from the engine's crankshaft, so it makes power available at much lower RPMs. The drawback to this is that driving a SC's turbine causes a direct draw on the engine, which you lose some power to.

So essentially, superchargers are better for low end power, and better for off the line performace, while turbos kick in as your RPMs build. Twin turbos make up for some loss of low end power by using two different size turbines, one of which spools up at lower RPMs and the other kicks in as the smaller one reaches the limits of what it can put out. Which is better? Depends on what you want the engine to do and where you most want to feel the power gain.

Between kits versus custom setups, it all depends on how much money you've got to spend. If you can wait, the aftermarket will soon have a variety of kits available for the Z, but not much is out there now.

If you have the bucks, a custom setup will get you what you want NOW, without waiting. But it's apt to be expensive, probably in the neighborhood of $5000-$10000. Custom setups, if they're done right, require a well set tuner shop with lots of tools, fabrication and diagnostic equipment, and a dyno - at the very least. All that stuff's expensive. Even more important, they must have the technical knowledge to design a system, which costs even more. Get ready to spend big bucks if you go this route. If you find a "cheap" tuner who promises to build you a custom setup for not much money ($2000-$3000), procede with EXTREME caution, as they may well blow up your engine because they don't really know what they're doing.

One other thing to consider with ANY form of forced induction. Regardless of what you get bolted on, it's bye bye Nissan manufacturer's warranty.

Hope this helps...

toykilla

thanks guys..

yes i am a FI newbie but i know enough about turbos and superchargers to make good choices...

the ATI procharger is the first to market.... so that is a plus and a minus.. people that buy them might be kicking themselves in a few months...

i want eventually to be in the 500-600rwhp range.. (not immediately of course) i think superchargers might not be reliably capable of this


thanks.. im just doing research wherever possible.. you never know who will give you the answer you were looking for

Omicron

Neither turbo nor superchargers will get you that kind of gain. For that much, you're going to need MAJOR engine work...