Hopefully the scanned image came out but in this months issue of Option Mag they featured quite a few RX-8's.The main feature that caught my eyes was the trust turbo kit...i will be posting more pics as soon as i get them scanned...

http://www.rx8forum.com/showthread.php?s=&threadid=9603

It won't be available until early next year, at the soonest.

Rob

does anyone know what kind of power the turbo will make? torque hp??

torque I dont know
but hp is supposed to be 50 on that turbo

50 doesn't sound too bad...does anyone know if trust offers some kind of guarantee for their turbo kits?

i doubt they would offer that kinda guarentee

Originally posted by XDEEDUBBX
50 doesn't sound too bad...does anyone know if trust offers some kind of guarantee for their turbo kits?

I think that is 50 HP increase at the wheeel without an intercooler. The intercooler is in development.

-Mr. Wigggles

i know this sounds stupid, but "only" 50hp increase? greddy's twin turbo kit for 350z bumped it up to ~370, from stock 287...

maybe the SSR turbo will make better numbers? and hopefully greddy will make a twin turbo setup for the 8

id love any kinda turbo kit for my 8......but seeing as there are some horror stories still going on out there ill probably have to keep the damn thing under warranty. :(

Originally posted by chinx
i know this sounds stupid, but "only" 50hp increase? greddy's twin turbo kit for 350z bumped it up to ~370, from stock 287...

umm not entirely true...it didn't make that much power..after they dynoed it, it only made 345 hp tp the fly wheel..not to mention it is using twin turbo's...so 50 hp isn't that bad after all...

so this trust kit being tested isn't a twin turbo?

nah its just a single turbo...i don't what kind of turbo it is though..but its just the right size for daily driving on the street...

Happened to see an OPTION CD where the BOSS of FUJITA ENGINEERING was interviewed.

My own translation "If u really must modify the RX-8, then i think d better choice would be NOS" as he was saying that, he walked over to one of his racks and pointed at a Blue bottle :D

He also said that there will be too much problems with o/heating in the 8 with turbo let alone TWIN.

Has anyone gave the 8 any shots yet?

Originally posted by XDEEDUBBX
umm not entirely true...it didn't make that much power..after they dynoed it, it only made 345 hp tp the fly wheel..not to mention it is using twin turbo's...so 50 hp isn't that bad after all...

They were also keeping the test in the safest range possible and running the turbo at a conservative 5.6 psi....at higher boost i'm pretty sure it would make more HP.

the greddy turbo for the 350z is 350 RWHP

So what is it at the flywheel/crank?

Originally posted by zthang
They were also keeping the test in the safest range possible and running the turbo at a conservative 5.6 psi....at higher boost i'm pretty sure it would make more HP.

oh yea definetly...they should have kept the boost setting at almost one bar...i think it could have handled it...

does anyone know if the renesis is a bulletproof engine and how much lb of boost it can handle?

according to a friend of a friend who is a mazda rep. / sales person

she quotes mazda saying

"next year the rx8 will see around a 60hp boost power using a turbo."

She also said the rx7 is going to come out with 300hp w/ a turbo having a shorter chassi than the rx8 and a very different look than the rx8. In 2006.

yea...uhh i wish them rumors will be true!

off topic but i really wanna see the prototype picture for the '06 rx7, n e one have them or one or a link or sumthing???

I was wondering when the new RX8 Turbo kit will be available and how much it may run price wise. Year(s) or sooner.

Thanks,
William Hall





Thanks for your interest in GReddy Products
Trust does offer a turbo kit for the Japanese spec model, but currently we do not have an application that will work with the USA spec RX8. We are still unsure if we will make one available for the USA spec car yet, but we are working on it now.
Please check back with our website www.greddy.com for updates or contact an
authorized GReddy Dealer
--
GReddy Performance Products, Inc.
9 Vanderbilt
Irvine, CA 92618
www.greddy.com

Holy back from the dead thread, Batman! :D Good for you for using the search feature, or at least reading older threads. Lots of info to be had that way.

Problem is, US-spec ECUs are a lot different. You can be sure they really are working on it though, and I'd guess we'll see this kit (plus a bunch of others) hitting toward the end of this year - probably "just in time for the holidays."

(Um, honey, can I have a turbo kit for Christmas? ;))

The Supercharger that Sunflower Mazda is working on sounds like it will be nice, if they can make the numbers they expect too. 100-120hp with 5-7 lbs of boost. They should have some dyno numbers soon hopefully next month or 2.

The Supercharger that Sunflower Mazda is working on sounds like it will be nice, if they can make the numbers they expect too. 100-120hp with 5-7 lbs of boost. They should have some dyno numbers soon hopefully next month or 2.Yup. They too are still working on a/f management. Seems to be a common theme.

Maybe they will figure it out soon.

I heard that Greddy's turbo kit runs on a TD-05 turbine and a TD-06 compressor. It's quite small compared to SFR's, even Rotor Master's. Does anyone think that these turbo kits be a gateway to shoehorning larger turbos, say a GT3540R? What about fuel management for this kit? Do you think this kit will utilize the e-manage?

The kit does use E-manage and it does come with an intercooler (if I remember correctly).

Early test drives of the kit by ordinary owners were quite happy with the power/price (roughly $4k USD). This kit is supposed t push something in the neighborhood of 270hp.

I heard that Greddy's turbo kit runs on a TD-05 turbine and a TD-06 compressor. It's quite small compared to SFR's, even Rotor Master's. Does anyone think that these turbo kits be a gateway to shoehorning larger turbos, say a GT3540R? What about fuel management for this kit? Do you think this kit will utilize the e-manage?IMHO, a smaller, ball bearing turbo would be better solution here than a larger one. Smaller turbos spool up sooner, and this is what the '8 needs - boost at a lower RPM to make up for the torque.

Exactly Omicron! All the JDm tuners are building their kits to do exactly that... beef up the low-end.

Now if we can just get the JDM guys to make kits for the US spec 8's then we'll be in business..

Exactly Omicron! All the JDm tuners are building their kits to do exactly that... beef up the low-end.

Good point Japan8, Omicron :). Does the smaller turbo necessitates that the kit may be inflexible? I would like to see boost levels mirror that of the FD3S, maybe in the range of 14-17 psi, 360+ rwhp. Unfortunately, the trade-off may be low-speed driveability. Aren't there other ways to increase low-speed driveability, i.e. longer intake runners?

A Big 16g turbo should do it, that turbo barely has any lag and can support up to 400hp. When I had that on my DSM a 650rwhp supra couldn't catch me until I reached 115mph (raced on the track of course)

Bigger isn't always better. If you actually believe so, get rid of your 8 and buy a Mustang GT or a GTO ("ain't no replacement for displacement"). Ford Motorsports has big block V8's available that are good for 500-600hp all motor.

Even rotarygod and Gordon as well I believe were saying that this size turbo is about the right size to match the engine and car's character. If you don't like the linear power, you bought the wrong car.

Don't most modern turbochargers have little or no lag at all? I hear a GT3540R, which is my dream slug, has very little lag. This turbo is, IMO, the new T78. It's all in the tuning ;).

rotarygod was interested in looking at my car, as he is supposedly wanting to design a turbo kit. Bigger isn't always better of course. The RX-8 will do quite well with the TRUST kit, as well as the Rotor Master. When it comes to size, I believe the SFR kit's use of a T4 turbocharger may compromise low-speed driveability. Maybe SSR can correct me on this one? I am just concerned about the flexibility of these turbo kits. It's too early to tell though.

Yep... dat's right. It's all in the tuning. What each kit is ultimately capable of won't be known until they are out there for a little while with people tinkering and tuning them...

rotarygod was interested in looking at my car, as he is supposedly wanting to design a turbo kit.

I am? :confused:


Just because one person uses a certain type of turbo does not mean that it still wasn't tailored to that car. There are RX-7 guys that use all sorts of turbos. The trim of the exhaust wheel (P,Q, etc...) and the a/r of the exhaust housing make a huge impact on how fast the turbo comes on line. We can have 2 cars set up identically, both with the same turbo, we'll say a 60-1 in this case. One car uses a P trim exhaust wheel with a .84 a/r exhaust housing and the other uses a Q trim exhaust wheel with a 1.00 a/r. The P trim car will spool up faster and make more low end but the Q trim will make more top end power. It will also be slower to respond. This is assuming the same boost levels. Even a T-04B can supply enough air for 400+ horsepower. The exhaust side of the turbo needs to be designed to flow enough through it. I will argue that the exhaust side of the turbo is more important than what compressor stage is used. There is alot involved in choosing a good turbo. Even how far it is from the engine can affect the size of the exhaust stage you may want to use. Many people don't think about this.

Isn't it also a good idea to keep the exhaust gas velocity as constant as possible? Turbo header design also constitutes a good kit, right? I hear that an individual-runner exhaust manifold will outperform the log-type; log-type exhaust manifolds, from what I have heard, can build up exhaust pulses on the turbine side. Unequal distribution of the exhaust gases is a bad thing, IMO.

That is true.

Thank you Corky Bell :).

so has anyone heard anything about the trust turbo at all? about how much of the kit have they developed already?

I believe that info has been posted in other threads. Did you try searching?

The kit is out JDM. USDM release is unknown... if it'll even happen. No you can't just the the JDM kit on your USDM car.... read above posts... a/f and timing management problems.

darn....yes, i did search. searching is how i came up with this thread, so....*shrugs*

oh well, i wonder if we'll ever get some sort of FI for the A/T. I was interested cuz i believe Trust developed theirs for the A/T.

Thank you Corky Bell :).


Corky is the man. Can't wait for the updated version of the book to come out.

darn....yes, i did search. searching is how i came up with this thread, so....*shrugs*

oh well, i wonder if we'll ever get some sort of FI for the A/T. I was interested cuz i believe Trust developed theirs for the A/T.


Sorry about that. I keep forgetting that since the software upgrade, we seem to have lost a lot of old threads... either that or the new search engine isn't so hot...

The A/T was a "joint" project with RE Amemiya. "joint" because really Trust/GReddy did the majority of the work. It was essentially the 6PI engine turbo kit strapped onto the auto... with different tuning of course. There were some concerns about the transmission being able to take the power though...

hmm...interesting. I would've thought that the torque converter would be able to reliably sustain up to 250 or so hp...just something i noticed with experience. of course, i'm also wondering how they managed to ram in more air with the air restriction "problems" of the Renesis. And when I say "problems" I mean "Mazda's Over-Engineering"

What air restriction problems are you refering to? The stock intake is almost perfect. As in the MS RX-8, all it needs is a free flow filter and a VFAD mod to get 100%. The other aftermarket intakes out now do give some gains, but mostly on the tops end and are reportedly LOUD...

If what you meant was the MAF... well all i can say is that Trust/GReddy isn't running much boost. A jump from 180ps to 275ps or so (rear wheel) according to the last reports I read on it.

Not sure but I think there was a hint of scarcasam in Mystril's comment. the only problem in the stock intake is for the aftermarket producers trying to get decent hp increases out of it. Hence "Mazda's Over-Engineering".

exactly...basically, i was referring to what rotarygod said about the stock intake...i'm wondering if we've hit the ceiling or come close on how much air can go through the intake ports cuz of their size.

Nope. You forgot about employing a bridge, or even a peripheral port. Just because the stock ports are as big as they are doesn't mean there isn't any room for improvement. :)

lets keep in mind as well, that the 4 port (the motor on USDM A/T cars) motor is available with a 5 speed manual in some markets (JDM is one of them I believe, I know UK/EU is). some people say the 4 port is better for boost. it all has nothing to do with an AT itself.

where's the dyno?

ah, so all hope is not lost, huh? excellent news