Help with RX8 Turbo Kit

[Sargent]

ok so i have a turbo kit i got its kind of a s$%# one but i dont care because this rx8 is just a beat around car anyways. i was jsut wondering do i need to upgrade the ECU or wil i be ok if im only going to boost 5-7psi...

please no haters because ive tried posting in other parts on the forum with no response... im new to this turbo stuff so i was just wondering

[nevertheless]

Ok, so I got a turbo kit, its kind of a s***ty one, but i dont care because this rx8 is just beating all kinds of cars anyways. I was just wondering do I need to upgrade the ECU or will I be ok if im only going to boost 5-7psi...

please no haters because ive tried posting in other parts on the forum with no response...Fixed..kinda, maybe nobody can understand what your saying, but yes no matter what the quality of the kit your Ecu needs to be tuned to handle a turbo, no matter what kind of psi your running.

[Razi]

You will need a new tune if you're going to be turbocharged.

Edit: nevertheless beat me to it!

[White Comet]

Ok, so I got a turbo kit, its kind of a s***ty one, but i dont care because this rx8 is just beating all kinds of cars anyways. I was just wondering do I need to upgrade the ECU or will I be ok if im only going to boost 5-7psi...

hes saying its a beater car, not that it beats everything

[Lev_96_240sx]

You will need a tune, injectors, exhaust most likely, possibly a bigger fuel pump (if it's possible for the RX8 to use more fuel).

On another note, you're saying your RX8 is a beat-around car and you drive a scion TC like it's your cool car? Something doesn't add up lol.

[OutToWinPAHC]

Not 240 related, changed title, moved to general

[Dattebayo]

How is it that you own a turbo tC and don't know jack about turbo cars?

I smell lies.

[raremotive]

How is it that you own a turbo tC and don't know jack about turbo cars?

I smell lies.

+1

[Sargent]

haha my tc is my brother car i baught off him ... the rx8 was my car i baught with very high miles just because i always loved the car... it need some body work but im going to be taking a few series of auto body classes in the up coming months... yes the rx8 is just a beat around car... so can i just tune the stock ecu? im very confused? im only going to run 5-7 psi at max

[Dattebayo]

NO

[car nut]

You have 2 tC's? One with a 2JZ, and one lightly modded (read: riced out) 'parts car'? And an RX-8 toy? And you're only 18? You are either: A) extremely talented and have some great friends/cash B) extremely rich C) extremely full of s***.

I'm leaning towards C...

[ProudNissanFreak]

Does it really matter what his financial situation is or how he got the car at 18? He asked a question regarding upgrading the ECU when boosting the RX, so just answer it if you have an answer.

OP you will need an ECU tune.

[breadbox]

Did you know there are Rx-8 forums too? So many people hate rotary motors for some reason.

You can throw it on and boost at 5-15psi until you lean out and kill your housings. Also I just did a quick look and you will want to build your motor for turbo or swap it out for an older 13b turbo.

[PyR0NiAk]

This thread is full of lulz

[Zydeco]

Ill bet that you need a new ecu, can you teach an ecu to learn thing like boost PSI? IDk.

[BusyBadger]

[Lev_96_240sx]

sTm[-HeavyHips]Ill bet that you need a new ecu, can you teach an ecu to learn thing like boost PSI? IDk.

You don't teach the ecu to manage boost. You tell the ecu to run more fuel at certain air pressure pre-turbo. the amount of boost pressure can be related to the amount of air that passes through the mass airflow sensor. That is the way an safc works, it develops a fuel map based on how much air is passing through the maf. So basically in the ecu tune you are changing how much fuel the engine receives based on how much air passes through the mass airflow sensor. Now it's not the best way to do it because after hard acceleration if you drop the pedal your car will run rich for an instant, but it is a way to get safe boost from your car. Basically you strap the car to the dyno and rev the engine through it's gearing while looking at a afr gauge and adjust fuel pressure to keep the car within a safe range.

That being said it will take some dyno time to get this right or he needs to find someone who has used the exact same setup and use their fuel map. The reason it's so easy to do a Ka-T without changing the ECU is because tuning maps are common and available for virtually any setup, I don't know how readily this information is available for the RX8. Best bet would be to sign up and SEARCH on an RX-8 forum.

[car nut]

Did you know there are Rx-8 forums too? So many people hate rotary motors for some reason.

You can throw it on and boost at 5-15psi until you lean out and kill your housings. Also I just did a quick look and you will want to build your motor for turbo or swap it out for an older 13b turbo

I think a rotary makes a great race motor, but I kinda think it ruined the RX-8. If Ford had put one of their quad cam V8's in it (or that new ecoboost motor) it would be legendary.

OP, honestly, what turbo kit did you get? The reason I think this is BS is cause the RX-8 ECU is difficult to work with, and last I checked theres only 1 or 2 kits out there that have a good enough tune to make a turbo kit a worthwhile upgrade.

[White Comet]

If Ford had put one of their quad cam V8's in it (or that new ecoboost motor) it would be legendary.

it wouldnt be an RX then

[ADDirishboy]

WIN

[Loki]

I felt this picture needed to be shown again. Am I wrong?