veilsidev1

I want to add some torque and hp to the 8, but don't want to bust my wallet. What do you guys reccomend for an upgrade under oh... $700 bucks. I dont care if it's 3 little changes or one big one, just looking to add torque and hp. Thanks alot

Wankeler

Right now the least expensive way is with NO2, check out this thread.

https://www.rx8club.com/series-i-major-horsepower-upgrades-93/nitrous-where-all-started-bhr-32578/

Mugatu

iTrader: (1)

For $700 you aint gonna get ****.

Heck, people are dumping THOUSANDS into their RX8s with marginal HP/torque increases.

Icemastr

http://www.tornadofuelsaver.com

http://www.electricsupercharger.com

RX8_Ownz

ur joking, right?

mysql101

For $700, there are two options;

1) Get the light flywheel for $450, and have a friend install it, or a cheap place if you have one..

2) Get a used CZ 1.1 w/ usb for $400, canscan for $140, and tweak the map to get about 40 hp.

Aside from those two, there isn't much you can do right now. Intakes and exhausts don't help much.

Icemastr

Joking about what?

Fanman

I agree with the nitrous argument. If you are looking at substantial increases in hp you are not going to get it for $700 unless you go nitrous. Talk to Charles Hill about that (nitrous). Otherwise the lightweight flywheel is a good suggestion. The Can Zoomer even tuned is all over the place from no hp increase to 5 hp (RX Tuner magazine) to 25 hp for some people.

RotaryNoob

40HP for $540 is a damn good upgrade. Has anyone dyno proven that 40HP or is that straight from the butt dyno?

IZoomZoomI

Haven't seen anyone pull a 40 hp increase yet. From what i've the cz works well if your car dynos at lower hps like 160-170. But if your car is already dynoing ~190 you won't see much improvement from the unit itself. Here's a reference http://www.rxtuner.com/farticles/Ca...ndExplained.pdf

RXE16T

An intake and catback should solve your torque deficiencies..... no, not really.
At least it'll make your 8 sound like its got the testicular fortitude.

Jaguar_MBA

Focus taking weight off the crank. The light weight fly wheel would be a good start, then do the aluminum underdrive pulley set-up.......Rotary God posted HP estimated upgrades and said that the Flywheel will feel like 20HP freed up and the underdrive pulley set would be 10 HP freed up. Check out my post about light wieght flywheel. I just procured a Racing Beat one and also bought the Power Pulley set from SR Motorsport. The power pulley set should be pretty simple to install yourself also.

By the way, some people are going to knock underdrive pulleys, but I don't think any of them have actually installed/owned one before....they are just putting out domestic consumption. My underdrive pulley has been great on my 300zx.

Charles R. Hill

iTrader: (7)

I can attest to the fact that the installation of the mods mentioned above will drop about a full second off of your 1/4 mile e.t.'s before any ECU mods. That comes with a gain of about 10 mph, as well. 55 h.p. of nitrous provides another drop of about a full second and gain of another 10 mph. It should be noted that I disagree with those who feel that most mods are not worth the money. I don't think ANY engine without a camshaft has one bolt-on mod that will provide dramatic changes in power. Therefore, we must look at modifying the rotary as a project that requires several small mods that add up to big gains.

At this point I have about $4K in mods, with labor provided by yours truly, and the gains are somewhat remarkable. The money spent is worth wiping the smiles off of the faces of Mustang and Camaro drivers in a drag race alone. The last thing those fools want to do is try to keep up on a road course and make me get my money's worth out of my Racing Beat suspension.

My point is that with well-placed mods the RX-8 will give you good performance per buck spent if realistic expectations are held.

Charles

p.s. I expect another drop of about .5-.7 seconds with an ECU re-map, another 20 h.p. of nitrous, and slicks.

veilsidev1

can you give me a little more info on #2, i dont know what that is, thanks

veilsidev1

what about these products, seem good???
where can i get a light flywheel for $450
And im a little paranoid about nitro.

http://hopupracing.com/kntyinairsym.html
http://hopupracing.com/nohospplwima.html
http://hopupracing.com/unraulssliun22.html

mysql101

Try reading this page: http://tyrannical.org/page-15

If you're interested, someone is selling a CZ 1.1 with usb/software in the for sale section for $375.

Fanman

K&N Short Ram - Wait for the Racing Beat unit it will be better. The K&N unit has had some idling issues, and on real dynos saw loss of power at the low-mid end for power up top. Also loud
Nology wires - Do not get these. We had a poster here that got them. Not only did they not add horse power, they wound up burning up two of his sparkplugs. Their claims are nonsense.
Unorthodox Racing Pullies - Even though they are selling them, they are not out yet. The UR guy is on this board. On their website they are claiming some pretty good results without underdriving things too bad. No independent dynos out yet. You may want to look at cortc's titanium pullies coming out they sound pretty sweet, or SR Motorsports has some too.