Okay before you flame the thread, this is operating under the assumption that sometime in the future, a year or whenever Mazda finally rolls out with a Mazdaspeed 8 that has some sort of forced induction.

My question is if/when this happens would people like me who have an 05 RX8 be able to purchase the parts for the forced induction that mazda slaps on the 8? Just like I did buying the mazdaspeed suspension? Or would they make it such where you literally have to buy the whole damn car?

To be 100% honest, I can't see myself waiting that long to "hope" they offer a MS8 FI kit... by then I plan to be either running with PTP's Turbo, Petit's SC, or AF's SC....

Just a random question I thought of.

Cheers,
Jeff

 

I don't think that even if it was do-able it would be worth it....If a MS8 ever does come out it will probally meet what seems like the industry "quota" of 300 hp ((350z, evo,sti)) .... at 300 hp I rather go with the AF unit or PTP's turbo.

 

i would rather have the axial supercharger if it gives out numbers like proposed... if that or something better doesnt come out by the time the ms8 comes out i will most likely just drop my 04 since the mileage will be probably in the 70k area and get the ms8

 

Even if this was so, I assume you are thinking Mazda will do the engine management also? TRD does sell sc kits for a lot of Toyotas. But as someone mentioned, the factory is generally the last place to look for a good SC/Turbo kit. They are ultra conservative and usually don't use the best parts. The only place where I can see Mazdaspeed with having an advantage is in selling actual rotary engine parts that no one else can, or cares to, manufacture.

 

Just so i dont have to wade through the 400 pages, what are the AFsc proposed numbers?

 

he hasnt dyno'd yet hes still working on the engine management but he has stated that because of the design they give better numbers at same psi than others do. im waiting to see those numbers before i decide on that or the PTP or other similar turbo.

the reason i want a SC is because they are instant boost on takeoff whereas if you are trying to get the biggest gain with a turbo they have to wind up because of the bigger diamater(sp?) unless u go twin turbo u can have 1 small for take off and 1 bigger for higher rpm. also i believe someone correct me on anything i have said that the torque gains from SC are higher and they are more reliable.

 

I would go with a SC just because of the even power output throughout the band vs. the punch of the turbo. Just makes since to match it with the smoothness of the rotary. I had read on Rotarynews about mazdaspped working with a SC instead of a turbo because of the port configuration on the Renesis.

 

I'm trading/selling my '04 to get the MS RX-8 when it comes out

trying to retrofit ALL the MS parts to make your regular 8 MS-like is just WAY too costly

 

The torque gains/powerband on the Greddy RX-8's are pretty flat - I've seen the term torque shelf thrown around this site in this respect. And the rest of this statement is so application dependent that what you're saying could or could not be true. Your torque and powerband characteristics will vary from GT28 to GT35 to GT42. Also, not every SC is instant boost. A centrifugal unit takes a very good part of the engine rpm range to get to full boost, the Greddy turbo does this at 3XXX rpms. The AFSC doesn't reach full boost, but is more linear than a centrifugal. A twin screw - like Pettit, Hymee - can give full boost near instantaneously, however.

 

yes devil im used to the twin screw my last SC car was a ford lightning and the boost was near instant on a take off depending how i took off

 

Forget about forced induction. Give me a 3-rotor.

 

I think Mazda needs to make a halo car. First we have Toyota's new Supra coming out in the next couple of years with possibly a V-10 or a V8 with hybrid tech.. Then we have the Nissan GT-R with 450hp. And finally Acura's next NSX which is gonna kick major ***. But Mazda so far has nothing in the pipeline for a tire-shredding exotic car for under $100k. Imagine if they made a 400hp 350lb/ft. RX-10 weighing in at 3000lbs. for around $65-75k. I guess the engine would either have to be bigger or have to have forced induction. But it would be amazing nonetheless.

 

okay, we're on the same page

I've only had two turbos to this point, but would like to try an SC this time around.

 

Mazda has never really had a super car. I meant you can't count the FD as a super car...and I doubt we will see one any time soon

 

mazda's OEM FI kits are very conservative. The mazdaspeed miata only had 36 more hp. I would seriously doubt mazda would increase the rx-8 by 100 hp like some are claiming. I'd imagine 40-60 hp would be the likely range.

 

ive driven a car with an aftermarket turbo and it just didnt feel the same ive also driven a wrx. i know that the torque in the lightning is alot more and you feel more of the pull but i liked the sound of the SC alot more too of course the blow off valves of the turbo are nice but the whine of a SC turns me on =D

 

dont expect more than a 22% to 23% hp jump from a factory FI rx-8

 

Yeah, the TurboII FC cars went from 146hp NA to 181hp FI, and later from 160hp NA to 200 FI, which fits very well with what Rotary Crazy is indicating.

 

and the car does't need more than this to be one of the best performing cars in todays market a real all around pakage