rx8's options!?

Momo251212 · 11-25-2008, 11:23 PM

If i want to tune a rx8, what's the options?
Turbo?(I hate turbo)
super charge?
or....i have heard ur guys discuss about turbo on rx8. thats y i come up with this question. besides, i love rx8 but i think this isnot powerful enough.....

any idea?? thx

Jon316G · 11-26-2008, 04:26 AM

Only way to get good performance upgrades on the RX8 is FI (forced induction).
The RX8 was engineered VERY well and its difficult to gain much more HP without FI.

Popular FI options are:

Pettit's Supercharger
Esmeril's Turbo
Greddy Turbo (find a cheap used kit then get the MazdaManiac upgrade)

There are others, but these are the popular kits within the RX8 community.
BHR (Black Halo Racing along with MazdaManiac) will be introducing a turbo kit possibly within the year.
Do some MAJOR researching before going this route and don't go with a kit that shows the most peak (keyword is peak) horse power.
The Esmeril can do 414HP at 16PSI... but you really don't want that with a street car. They produce 366HP at 13PSI which is more tolerable on the streets.

Now if FI isn't for you just yet, the only N/A upgrades that'll give you some performance is:

Mid-pipe (high flow or cat delete)
Cobb AccessPort (allows you to tweak the tuning)
Ignition coil upgrade (BHR just released a GM Yukon coil conversion) and this is because the stock coils are weak and prone to failure
Lighter flywheel and short-shifter (maybe not much HP performance, but noticeable while accelerating)
Wheels and suspension upgrade (no matter how much power you can produce, you still need to transfer that power to the road)

People will argue to get a CAI (cold air intake) system. Many don't realize that the stock RX8 has a CAI system when you consider the VFAD assembly in the front.
I've had the AEM and Racing Beat CAI setup and there isn't much gain at all (not enough that your "butt" dyno can tell).
Both systems will give you a nice deep sound, so don't spend the cash and expect a large boost.

-xlr8planet- · 11-26-2008, 05:53 AM

the ZEX nitrous (wet) seems to run pretty well on a 55 shot

Momo251212 · 11-26-2008, 08:05 PM

what about 3rotor for rx8? seriously, i dont like forse induction.

but thanks for ur reply tho, thx alot

sumdeus · 11-26-2008, 08:40 PM

20b swaps are out there, just not many. I have seen (online) a 2JZ-GTE swap as well.

Jon316G · 11-26-2008, 10:17 PM

Hope you have tons of cash laying under a mattress.
People have done the swap themselves for $15,000 while shops charge around $25K-$30K.
Its not as simple as just swapping engines.

05whiterx8 · 11-28-2008, 07:05 AM

i am pretty sure there is an sr20 swap out there also

Phoenix7 · 11-28-2008, 02:06 PM

well, At one point I was under the impression that boosted Renesis' weren't as powerfull but Mazdamaniac and others showed me otherwise.

http://www.mazdamaniac.com/cobb/accessport.htm

He's making ~350hp which is pretty nice for the RX8 chassis.

If you have money to throw around then go for a 3-rotor.....power, more torque and it's perfect for the rx8.

neit_jnf · 11-29-2008, 05:08 PM

theres also the hymee supercharger

11-25-2008, 11:23 PM	#1
Momo251212 The Newbie Join Date: Nov 2008 Posts: 5 Rep Power: 0	rx8's options!? If i want to tune a rx8, what's the options? Turbo?(I hate turbo) super charge? or....i have heard ur guys discuss about turbo on rx8. thats y i come up with this question. besides, i love rx8 but i think this isnot powerful enough..... any idea?? thx

11-26-2008, 04:26 AM	#2
Jon316G The Newbie Join Date: Oct 2008 Location: Akron, Oh Posts: 16 Rep Power: 0	Only way to get good performance upgrades on the RX8 is FI (forced induction). The RX8 was engineered VERY well and its difficult to gain much more HP without FI. Popular FI options are: Pettit's Supercharger Esmeril's Turbo Greddy Turbo (find a cheap used kit then get the MazdaManiac upgrade) There are others, but these are the popular kits within the RX8 community. BHR (Black Halo Racing along with MazdaManiac) will be introducing a turbo kit possibly within the year. Do some MAJOR researching before going this route and don't go with a kit that shows the most peak (keyword is peak) horse power. The Esmeril can do 414HP at 16PSI... but you really don't want that with a street car. They produce 366HP at 13PSI which is more tolerable on the streets. Now if FI isn't for you just yet, the only N/A upgrades that'll give you some performance is: Mid-pipe (high flow or cat delete) Cobb AccessPort (allows you to tweak the tuning) Ignition coil upgrade (BHR just released a GM Yukon coil conversion) and this is because the stock coils are weak and prone to failure Lighter flywheel and short-shifter (maybe not much HP performance, but noticeable while accelerating) Wheels and suspension upgrade (no matter how much power you can produce, you still need to transfer that power to the road) People will argue to get a CAI (cold air intake) system. Many don't realize that the stock RX8 has a CAI system when you consider the VFAD assembly in the front. I've had the AEM and Racing Beat CAI setup and there isn't much gain at all (not enough that your "butt" dyno can tell). Both systems will give you a nice deep sound, so don't spend the cash and expect a large boost. __________________ Current Mods: Racing Beat REVi Intake, Racing Beat REVi Ram Air Duct, Agency Power Catback Exhaust, MazSport Dual Resonator Midpipe, Agency Power Under-driven Crank Pulley, Autoexe Spark Plug Wires, Hawk Ceramic Brake Pads, OPTIMA 35 RedTop Battery. Oils: Engine= Royal Purple 5w30, Trans= Redline MT-90, Diff= Redline 75w90 Last edited by Jon316G; 11-26-2008 at 04:34 AM.

11-26-2008, 05:53 AM	#3
-xlr8planet- RCC Contributor Join Date: Feb 2008 Location: Buenos Aires, Argentina Posts: 679 Rep Power: 18	the ZEX nitrous (wet) seems to run pretty well on a 55 shot __________________ www.rx7club.com.ar RX-7 Forum in Spanish I make custom decals. Yes, you can ask me

11-26-2008, 10:17 PM	#6
Jon316G The Newbie Join Date: Oct 2008 Location: Akron, Oh Posts: 16 Rep Power: 0	Hope you have tons of cash laying under a mattress. People have done the swap themselves for $15,000 while shops charge around $25K-$30K. Its not as simple as just swapping engines. __________________ Current Mods: Racing Beat REVi Intake, Racing Beat REVi Ram Air Duct, Agency Power Catback Exhaust, MazSport Dual Resonator Midpipe, Agency Power Under-driven Crank Pulley, Autoexe Spark Plug Wires, Hawk Ceramic Brake Pads, OPTIMA 35 RedTop Battery. Oils: Engine= Royal Purple 5w30, Trans= Redline MT-90, Diff= Redline 75w90

11-26-2008, 08:05 PM	#4
Momo251212 The Newbie Join Date: Nov 2008 Posts: 5 Rep Power: 0	what about 3rotor for rx8? seriously, i dont like forse induction. but thanks for ur reply tho, thx alot

11-26-2008, 08:40 PM	#5
sumdeus Rotary Fanatic Join Date: Mar 2008 Location: Florence, SC Posts: 148 Rep Power: 0	20b swaps are out there, just not many. I have seen (online) a 2JZ-GTE swap as well.

11-28-2008, 07:05 AM	#7
05whiterx8 The Newbie Join Date: Oct 2008 Posts: 8 Rep Power: 0	i am pretty sure there is an sr20 swap out there also

11-29-2008, 05:08 PM	#9
neit_jnf Boricua! Join Date: Jul 2008 Location: Puerto Rico Posts: 99 Rep Power: 18	theres also the hymee supercharger