whats the highest BHP on your RX-8? 250+ ????
 

I have had my car for 6 months and its still stock.

Have been doing a lot of reading...

I wanna know what kind of toys you guys bought for your 8.

So who has the most BHP on their 8?
And what did you do to get this?

I have a 2004 192 spec RX-8.
A guy I met at a jap car show told me I can push my BHP to 250???

Just with a new cold air intake, new exhaust system and a remap =$ ??

Now as a NEWBIE, I have no idea what to get and what brands to buy =(

Please, any help would be great =)

Also, my car is at 48,000 miles, what is the average engine rebuild?
When will it blow up =(

Like I said, I AM A NEWBIE, when i bought this car, i had a choice, this or an Audi TT, i fell in love with the 8.

On your car 250BHP is not going to happen without forced induction or an engine swap.

No offense intended but....
LIES!

You know how I know? Because of the rest of your post:

Probably the 3rd most asked question. Well, not really. No one asks about BHP, just WHP (Wheel Horsepower).




In short though, you are in over your head if you don't know the basics. From the factory, the 8 is VERY well tuned (mechanically). There are only 2 things you can do for easy power:
- AccessPORT custom tune to remove some of the "safe" parts of the tune (unavailable as of 3 days ago unless you find one used)
- Removing the naturally restrictive catalytic converter.



Doing the rest (intake, exhaust, pulleys, etc...) nets you MAYBE 5hp. MAYBE. Depending on the brand, alot of them are inferior to the OEM stock system, and plenty cause you to lose power.


If you want power, you have to go forced induction, turbo or supercharger. And you need a starting amount of about $8,000 to $10,000 for a complete set up. And if you dont have an AccessPORT, you have very little chance in making it work.


If you don't go that route, then the most you can expect is about 200 whp without a customer engine rebuild. Spend $30k+ like race teams do, and you can get to about 220whp.


This isn't a power car.

:lol2:

i smell a troll

Can he even get to 200whp with na add-ons since it's a 192 (4 port)?

Start looking at the stickies on this site and doing a lot of reading. Take a closer look at what RIWWP posted and start saving some coin.

no he'd be lucky to get 180:naughty:

what do you mean LIES???

i posted this so i can get you guys help - are you retarded? i mentioned that i have been doing is been reading about exhaust systems and suspension and a lot about CAI.

and the guy i met, i didn't take his word for it, just confused me.
thats why i made this post. Like i said, I am a newbie, only 20 and this is my first car.

i haven't got a clue what i need for my 8, just read post from others on here.

some ppl on here are not helpful, just stuck up.

maybe i wrote this THREAD all wrong...

my car is all stock!

and the stuff i mentioned:

(intake, exhaust and remapping) - thats what the guy from the jap car show told me, maybe he was talking crap, like i said, i'm a newbie to this car.

is this helpful?

thanks bro, helpful... will do.. if possible can you email me the link to the post

i cannot find it.

I meant that your line about "I've been doing alot of reading" was a plain lie.

I'll tone it down a bit, by acknowledging that you might not know what reading is. Some people this this single post is alot of reading.



But it takes less than ~30 minutes with even a casual look through the after market performance subforum, or the major horsepower upgrades subforum, and it would be pretty obvious that there isn't much you can do. Take a couple hours, and you be near an expert.


I agree, you are a newbie, but I disagree that you did "alot of reading".

it is. it means dont bother throwing all these money and be happy about what you have.

The stock rx8 mt is 232 bhp but to the wheels its normally 185. say you get 200whp that will be close to 250bhp.


Now if you have auto 04-05 its 192 so roughly 160whp add in 4k worth of mods you will be lucky if you hit 180whp, which in return will hit 212bhp.

Fair enough, when i said "reading" i have been reading what ppl on here have wrote, (which exhaust system is good, and etc..) i haven't been looking enough to find out what the outcome is.

but, yes.. i have a lot to learn and find out. thanks.

okay. cool. i have a 04 manual.

4k LOOOL, man.. i will not finish UNIVERSITY if i do that. Thanks,

your in UK so you guys have the 4 port 192 bhp manual version.

in US all manuals are 232 bhp version.

thanks... i'm still young, so bare with me.

oh god. I suddenly feel being 24 is very old.:tear:

yeah its no where near cheap to mod this car. Best is to just find an exhaust tone you like and update the suspension add some good tires and call it a day..

wow, thats good! i wish i could get the 232, maybe after university, prob is i have to sell one to get another, i cannot have 2 =(

so if i make my 8 look nice and mods ...etc
no point selling it... just driving this 192, make me wanna go faster.

saad84: Start here https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/new-rx8-owner-faq-1-25-09-a-163824/

We have been getting a lot of repeating posts lately so people tend to get a little put off when the same question is asked over and over. Don't take it too personally.

I would look through all of the stickies you can find. They're at the top of each section and marked as such. Spend some time in these two threads as well.
https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/

Is your 192 a manual car? We only have the 192 (4 port here) as an automatic, but this forum may be of help.
https://www.rx8club.com/series-i-specific-performance-mods-97/

For more reading, RIWWP has had some great posts covering the basics for new owners. View his profile or do an advanced search to find them.

Search is your friend here. It will keep people from beating on you for asking questions that have been answered countless times.

Happy rotoring

thanks =)

any good ones you can recommend? =)

thanks. will do.

Apologies for posting this new thread if caused hassle for others.

BTW. Congrats on getting an 8 as your first car!

=)

yea, glad i got this instead of an Audi TT!!

I like this thread.

Dude. Thanks. Posts like this make the forum better. +1 internets for you. I know repetitive questions are hard on the sanity, but even the search feature here tends to drag up threads that might answer the question eventually, but invariably have trolling statements not unlike this thread does.

Saad84:
http://i38.tinypic.com/28im5oy.jpg

From what I've read, its a diminishing return to mod the RX-8. Most aftermarket mods just make the car noisier and, eventually, throw codes. Mazda did their homework and made a well tuned machine that isn't going to go any faster with a couple of cheap bolt ons and backyard engineering.

It's surprising, I know. :lol2:

Not going to stop me from turboing the car when I clear the project list though. The Esmeril kit looks nice. But for the most part, I'm still looking for reliability numbers personally first-- Stupid reliability crushing power numbers later. :evil_laug

This is true, but it hasn't stopped me from any mods, or planning future mods. Although there might not be a lot of bolt on power adders, there are other mods that are very worthwhile. The most rewarding is the driver mod of course. That's probably where i'll be spending all of my mod money for a while.

I have a 05 4port shinka, and planning to go with Pettite in the future like Phil's8.

Honestly, there is always faster and better cars out there.
Not mentioning how personal skill effect car performance, can't remember how many times seeing (rich) people trashing cars out there.

At the end it really comes down to, how do you enjoy your ride and what you wanna do with it. As long as it feels right and satisfy there it nothing wrong with it, no matter how you wanna mod it. (as long as you got the budget)

Cheers,

Cobb AccessPORT with MM tunes(no longer available)
BHR ignition coils
Mid-pipe/High-flow cat

Only NA mods that make a real difference. Now with the AccessPORT small mods like an intake, cat-back, etc will go farther and actually make a difference. Otherwise don't expect them to net you anything above 5 bhp a pop. Keep in mind its a 1.3L engine. The same size engine that go into some motorcycles. While 5 bhp may make a difference when the bike only weighs 600 lbs, 5 bhp in a 3,000 lb car means nothing. The RX8 wasn't meant for drag racing. Get a short-throw shifter, better brakes, tires, and a dual plate clutch and try out auto-crossing. Coming onto this forum and asking how you can get the most power out of your RX8 is like an SRT8 Challenger owner asking about suspension mods. You can dump your whole paycheck in, it won't get you that far.

You should have gotten the TT if you wanted to go faster :P But once you go to the RX-8, good luck going back to a sloppy handler.

I would have gotten a TT if i would have fit in it :S ( 6'6" tall )

Although I understand the frustration with repeated questions, you can answer his question more straightforward, without sounding like a cock. If the BHP is 232, and full exhaust and intake are done, you would probably be pretty close to 250 BHP. Exact or over probably not, and your probably are going to hate the exhaust note. Also, most race teams that i have seen use 3 rotor engines, and make way more than 220whp, and I have seen 4 rotor projects done for around 30k, so im not sure what 30,000 dollar 220 hp engines you speak of.

Troll is a label that is thrown around too easily and recklessly. A person could be dumb rather than a troll. Or he could be a pissed off asshole pissed off at assholes rather than a troll.

There is no guarantee you will finish "university" regardless.

if you dynoed it on a really cold perfect day you might crack 200hp.

To answer questions through the fluff

Midpipe $150-$250 (used)
Accessport (find one used, someone sold one today for $500)

for under $1000, this will yield you an 8-15 whp gain if you're lucky. I recommend focusing on modding for reliability (mods that make your engine run efficiently and COOLER), sound (what you want your car to sound like), and for your driving style.

Modding with no purpose is like the people who buy an xbox with no TV. It's a waste of money and becomes an eyepiece that doesnt work the way you wanted it to.

Drive your car, find areas you want to improve, form a budget, make a checklist, and start going through it.

Im about to cross my 5 year anniversary with my car, and Im not even an 1/8 of the way down my list, these cars are pricey and tempermental.

I detailed it out because just tossing numbers around doesn't mean anything. And the crank HP is so debated, even within Mazda (228, 229, 232, 235, 238, 240, 242, and 250 have all been used for the same stock OEM engine), that we don't use crank around here, only whp, since we KNOW that number. I was shifting his thinking off of BHP for a reason.

I also wasn't making a single reference to any race team using any engine OTHER than the Renesis. Why would I? Speedsource used Renesis engines in their ST class RX-8s in Grand-Am (they moved to Speed3s this year). They only use 3 rotor in the GT class, but that obviously isn't a Renesis. That's just Grand-Am even.

The World Challenge series has 4 RX-8s, one being #32 XOWii Racing (the driver is a member here), the other three being the #20 Maxwell, the #21 DC Racing, and the #08 Frank's International. One of those 4 is who posted the highest whp yet of 222whp+, and that is where the $30,000 reference came from, because that is how much their ECU alone costs.

Austrailia has a road rally series with a turbo charged 8 in it, and there are others around the world.

My point was simply showing the difficulty in getting additional power, especially outside FI. If those race teams with funded R+D can't get much past 220, our realistic street limit is lower than that (unless we go FI of course, they can't due to class rules). We like to avoid people setting their hopes too high, it usually results in a molested or destroyed 8.

In the us the 4 ports were 197hp
2004-2008 the MT rx8 had 238hp
2009-2011 the MT rx8 had 232hp
2006-2011 the AT rx8 had 212hp
2004 and 2005 we're the only years in the us that had the 4 ports.

The early numbers were inflated anyway.

It's more like 232 BHP for all 6-port MT.