preludah

Hi. I'm kind of new to rotary engines and my 8 atm. Have done some research and looked at roto's build, and I am wondering what is best to get.

I looked at greddy's kit and the esmeril kit, and must say the esmeril kit looked better but since I am new to the whole car and engine I don't know what is best.

My engine is the medium power version of the rx8. I got 191HP, and 2 jets in the intake manifold instead of 3 wich the high power version got. I also have a 5 gear manual gear box.

Any ideas? will the greddy kit work at all with my engine?

Jedi54

iTrader: (7)

I'd stay away from the stock Greddy kit. Too small of a turbo, not a lot of HP.
Medium power version? Hmmm.... here in US we only had the Automatic: 197 or the Manual with 238 hp.

Esmeril is nice because it looks GREAT! (front mount turbo). Look at Mazdamaniac's Greddy Upgrade Turbo Kit. http://mazdamaniac.com/upgrade/Mazda...20Upgrade.html

Not sure if they will work on your car though.

preludah

yeah I know... figured that since the medium power or non high power only came to scandinavia and europe, cause the mazda costs 150 000 $ here in norway.... got my 2005 model for half the price last friday.

I sent a mail to mazdaparts for the fitness of the turbo for my car.


Is it much work to build my around the the high power? different intake and the wires and instruments?

RWagz

Are you asking how hard it is to turn your car into a highpower? Not going to happen. You're missing ports.

Jedi54

iTrader: (7)

preludah: does yours have 6 ports or 4? I'm confused....

If you are looking at the turbo from mazdaparts, there's one for sale that is BRAND new.
https://www.rx8club.com/rx-8-parts-sale-wanted-44/fs-esmeril-racing-turbo-kit-145241/

N rider89

it is the 4 port 5 speed MT i think

chickenwafer

iTrader: (9)

He's referring to the "Type-S" RX-8 which basically has the old early automatics (US Version) 4-port motor with a 5-speed manual transmission.

I would get the GReddy kit because your motor doesn't support higher horsepower levels anyways due to it's lack of ports.

Razz1

The Greddy kit is know to be short on parts and is notorious for bad customer service.

preludah

yeah ok... bear with me... isn't the only difference with the engines the intake manifold, the ecu and the instruments? if it is only that I can just as easely order those parts from us of japan first... so it will have 6 ports instead of 4... if that is possible?

Jedi54

iTrader: (7)

you would need a whole new engine. Not going to upgrade easily

rotorocks

The difference is in the housings.
Getting the 6 port manifold will solve nothing.

kersh4w

iTrader: (3)

did he just say he bought the car for $75,000?

for $75,000 why dont you buy a porsche cayman s?

rotorocks

Because Porche probably costs 3X that where he lives.

N rider89

if an rx8 cost $150000 there i think th cayman would be pretty expensive too

preludah

don't think anyone would spend that much money on a porsche here... I payed 65 000$ for it... and it is a 2005 model... a new one kosts 130 000 $. So I need to swap the engine? how boring! so I cant get more than 300- 350 HP at the crank?

rotorocks

Trust me on the 8, 300-350 WHP is not boring! it is FUN!
Think of it this way, you don't need to deal with the APV opening issues at 6200 RPM, when in boost, so you are good.

preludah

What do you mean? I thought I would not be able to get that high with my engine? and will I still be able to tune the interceptor right with only 4 ports and not 6?

I took my 8 out today when it was raining and boy does she spin on wet road:D just want some higher torque and around 100 more HP.... and maybee I will get an high power version in a few years or so... I think I have a good starting point with my engine either way even if I can't reach 340HP at the wheels I sure as anything would be feared by other cars at the track We have a big meet at the ACR coming up soon and I am gonna see what times I get at the track with my 8 almost stock
And next year when I get to save some money I can import the turbo kit and start building, and get the car more fun.
Is it possible to set the RPM limit from 8k to 9k? or should I let it be as it is?

rotorocks

The reason the RPM is limited to what it is on the 4 port is because the 4 ports do not flow enough air to support higher RPM to power output ratio. the 6 port has 2 additional port which open when the motor reaches 6200 rpm, and flows additional air.
Being boosted changes things, because you are pushing compressed air into the motor. So theoretically you should be able to increase the revs, but you cant expect the motor to produce the same power at that RPM range, and at the same pressure ratio (comparing with the 6port) due to the fact that the higher volume of air can be moved through the additional ports, boost or not.

There are int-X for a 4 port, don't know if it will work on your car, as you are not in US. Talk to Mazsport.