Potent

Well looks like we finally might be getting a turbo kit option sometime next month. Acosta racing knows their stuff and has stated that they have a 6psi kit going into production and will more than likely be taking orders by next month. Adds about 60rwhp (auto) and 75rwhp (manual). When asked about the weak side seals on the renesis they stated that they resolved the problem with the kit by bumping the timing down a bit with the new ecu I would guess. Pricing is of course not cheap as it would probably be the only one available and is a COMPLETE kit. Install time and ease wasn't discussed but with acosta's track record im sure it has everything you need and/or want. Wish the wife would let me void my warranty and throw $6500 their way for it. Anyways thought you guys would want this info as I know I did.

Rev It Up

Would like to see the 0-60 times with this kit. $6500 is alot of cash for 75 rwhp!

bdeitemeyer

I agree. The Greddy/Trust kit should yield similar gains hopefully but will be a few thousand less.

Psylence

$6500 is NOT a lot of cash for a properly designed and engineered aftermarket turbo solution. By properly engineered, I mean including all necessary parts to insure trouble free opertaion; even ECU work/replacement.

75hp is a sizeable whack of power.. lets try not to compare to shitty honda turbo kits that double the power. It's easy to double the power when you have next to nothing to start with...

Potent

Yeah 75hp at the wheels is something you'll def FEEL. And as far as price goes you figure that for something that is a COMPLETE kit (not sure if intercooler is included) $6500 is pretty much average especially considering this is probably going to be the only option for a while. The guys at acosta have their stuff together and I'm sure that everything in this kit is of the best quality and they didn't cut any corners on this kit. You pay for what you get when it comes to things like this and personally if I could I'd rather buy one for 6500 rather than 3800 and still have to peice it together. Anyone who has installed turbo kits before knows that it never goes smooth unless you pay the price. In this case the price looks to be 6500 and probably worth every penny.

Omicron

Anyone have any feel for what tuner shop installation would cost for a kit like Acosta's?

Japan8

Maybe, but all reports say that GReddy/Trust wants to put their turbo kit.. including eManager and intercooler... on the market for $3k+, definitely under $4k.

I'd say hold off on getting any kind of FI and give it 6 months to a year for more systems to go on sale and all of them to mature (let someone else blow their apex seals!) before making a purchase. Just my $0.02...

rotarygod

While I will not debate the fact that $6500 is reasonable for a very well done turbo kit, it is alot for only 75 hp. That is $86.66 per 1 hp. For $6500, I want more than 75 hp. On the plus side there may be spots in the powerband where power increased more. I imagine 75 more is just at peak but the average is greater as a whole.

For only 75hp, it would be very easy to find a way to retune the ecu and use nitrous. It could be done for less than half of that turbo kit. If anyone says something stupid like nitrous will blow up the engine, they had better also say a turbo will too. There is no substitute for proper tuning. It is bad tuning and not forced induction or nitrous that will blow up an engine.

I too agree not to buy the first thing that comes to market but wait and see what else becomes available.

boarder

whenever I hear the hp gains for these turbo products, I always wonder if its on top of any other gains from a mod such as Canzoomer's stage1. Because if we only get a few hp more than a ecu addon then its probably not worth the dough. If its in addition, then thats sweet. just a thought.

XDEEDUBBX

dam that kit is pricey... like RotarGod says i'd wait atleast 5-6 months upon release...

MazdaManiac

iTrader: (3)

This would require the removal of the CZ box.

murix

You have to also remember that when you hear these power gains this is just a starting point. With the right work forced induction will take you much farther. The only thing that concerns me is the driving dynamics of the car are so good I am afraid to do anything to upset it. In a corner it throttle steers very well.

WTF no turbo

Blitz compressor yeilds same power.Results ive seen around 270ish dyno which equates to 70 or 80 to the wheels.I hear a price point of 4995. which gives you everything you need for installation.I would say it is stateside mid to late summer.

Psylence

While everyone is whining and bitching and missing the point completely....

I'm specualting that the 75hp figure was reached and decided on as the maximum "safe" amount of powr increase that you can get without cracking open the motor and doing additional reinforcements. Seals, whatever.. I'm still new to this rotary thing.

But what I don't get is everyone jumping on this for being a low number.. Guys, I kid you not! Give ME $6500 and I'll build you a turbo kit that'll belt out an extra 200hp.. but I'm not making any promises as to reliability or driveability.

Making "big power" is easy. Making more power consistently and reliably is better.

downshift

But how do you judge reliability? Because it is pricey or because there are a lot of good feedback from their past offerings?

Psylence

You can estimate reliability based on components used, as well as shop reputation.

No one can *really* judge reliability until someone has had it on their car for 10's of thousands of miles.

But top shelf components + conservative tuning will go a long way.

rotarygod

A 75 hp increase can be the most unreliable thing on the planet if it isn't tuned properly. 150 hp gain can be completely reliable if tuned perfectly. Reliability is untimately going to be based on how well the owner treats their car. You can drive around at 9500 rpm all day every day on the stock engine and never change your oil. Don't expect it to go 100K miles though.

To say that the stock engine is only capable of a 75 hp increase safely is pure fiction. I am not new to rotaries. I've seen stock Mazda rotaries put down 600+ hp with high boost AND nitrous. I've seen a 250 shot of nitrous done safely on a stock Mazda engine. I've even seen the older rotaries run at 10000 rpm safely. 75 hp is not a noticable stress on the engine. It is how you tune it and treat it.

I've already dealt with the seal differences and strengths in another thread so I won't rewrite them here.

On the subject of 75hp being a starting point. Different turbos have different efficiency ratings at different flow levels. A turbo that comes with a kit that states 6 psi had better be designed around max efficiency at 6 psi. Some people may just want 6 psi and no more. Others couldn't be happy if you gave them 26. If the turbo in the kit is designed to be more efficient at a higher boost level, where is the value? A smaller turbo might actually be more efficient and make more power at 6 psi. That is the turbo that should come with the kit. It is all about getting the most for the money.

Just so no one comes back with something like, "but you can run more boost later", you'd be really pissed off if your car was sold to you but with the ability to run it's best at 15000 rpm if you ever change the transmission, cooling system, and just build the car around it later. It is really the same thing.

The issue is getting the most performance at the advertised boost level for the money. If people wanted a kit with more potential then they can go buy one with more potential. For $6500 it had better be all that it can be at the advertised boost level.

Psylence

I agree completely, rotarygod, that tuning is absolutely everything. All the components in the world will do you no good if the tuning is half assed.

My problem is the people discounting the kit based solely on the HP claims made by the manufacturer..

My personal opinion? Anyone who thinks that you can reliably boost a factory built N/A engine into the double digits psi's has quite a few rebuild kits to sell you. If you want large F/I power increases reliably you need to do the appropriate groundowrk, rotary or piston.

Kas

give him a f*%^ing break!

he's delivering news! I hope not all of you shoot your messengers.

Lufa

Sweet... not that I would get one installed. I want my rotary to last a long, long time, too much heat with FI where I live. All of my friends/co-workers RX7's went down between 30-60k miles. They might be wrong, but the general consensus was FI + brutal summer heat + stop and go traffic = early engine death.

Not that I wouldnt want an extra 70-80 hp .

rotarygod

The 3rd gen RX-7 had notoriously lousy cooling. It wasn't adequate for an unmodified car in the summer. The ecu was also strictly map based. It had no idea of how much air was entering it or not. If a person upgraded to breathing ability the ecu could not compensate and a blown engine was very common. The turbos were too small and would typically need replacing too early. There were too many problems with that car. The 1st and 2nd generation RX-7's had none of these issues. Not even the Turbo II had these problems. The last RX-7 can in no way be compared to the RX-8 in regards to reliability. It can't even be compared to older RX-7's. It is a new car with a new engine.

Lufa

Rotarygod, that is good to hear, however I will let other people in the forum be a guinea pig for me, especially people in Texas . I am pretty sure I am going to stay away from FI for at least a year or 2.

boarder

Psy:

I was jumping (my post is hardly "jumping" on it) on it being a low number mainly because 6500 dollars (turbo) vs less than 1K dollars (ecu plugin). If the turbo only brings a small improvement over a non-turbo, then the issues associated with tuning the turbo and reliability can outweigh the non-turbo options once price is considered.

I am looking forward to some decent turbo kits, but from a price perspective it may not make sense for a while. I WANT to see good turbos and SCs on the RX8.... I WANT THEM ON THIS CAR. I NEED THEM ON THIS CAR. ... *cough* sorry, bad attempt at Jack Nicholson in "A Few Good Men"

slavearm

To be honest, in the absence of side and apex seal upgrades, I am happy to see a kit with the potential to go much further once the parts become available. Personally, I am not going to be really happy with this car until I hat 350 at the wheels which means I am going to need a good size turbo. That doesn't mean I am going to just drop some plumbing in and blow my engine, but it does mean that I view 350 as a quest and that anything not supporting my goal wont be considered as a part for my car. That being said... I am glad this kit is being developed =)

Thanks Guys.

Slavearm