8thRider

Hi. I have made a post earlier on what should i do with 3.5grand...and many told me thats a lil low..-_-..lol
anyways, I have saved up 5 grand now, and do you guys have good suggestions on turbo kits or power upgrades?

My goal is to outrun 350zs and STis, wonder if i need more money or is that ok?

drakkhen

Turbo kit + proper tuning at a shop. Your close. You'll be able to keep up with their stock versions then, maybe + a few tenths. Contact some performance shops and get some estimates. :D

With a good shop, familiar with the 8, you can tell them what you want the car to do, they can tell you what's realistic, and then shock you with an estimated cost.

rkostolni

With a properly tuned Greddy kit you'll outrun stock 350z's, and should keep up with sti. Put another $2500 in down the road for exhaust, boost controller, injectors and you should be at least even with sti's. Or just save up and get the SSR kit for around $7k maybe more depending on the options you go with. Just decide what your goals are first. The SSR kit has more potential, but you may not need that if you don't plan to build up a 500whp machine.

8thRider

hmm...
im trying to push just above 300 whp..
wonder if its doable with the greddy unit

Fanman

That's been discussed here on this board quite a bit. Greddy kit is more for the 280 whp range. (250 whp range without the addition of the boost controller, fuel injectors, etc.). For $5000 you are really looking at :

$2950 Greddy turbo kit
$ 600 Gauges & Gauge Pod
$1000 Installation & Tuning

$4550 Total

With boost controller & fuel injectors you will be able to put more boost through getting close to 300 whp. Trust me at 240-250 whp you will be more than able to run 350Z/G35's & even might surprise a STI driver or two (from personal experience).

The PTP Turbo kit will use the T3/T4 turbo but it looks to start at around $5,000, The SSR even more than that. $5K will get you into a very nice Greddy setup, with a bit left over. You will have to save up a bit more for the PTP & SSR units.

8thRider

greddy turbo kit only costs 2950?
i thought i was more like 3.5grand?

Fanman

No you can definitely get it in the $2950-$3000 range. Look at the vendors below like www.rx8store.net (Jason - Call him) or Matt at www.mazdaparts.com (gold member pricing). I got mine at www.city-speed.com for $2929 (though I don't think they are authorized Greddy dealers).

Also I forgot the blow off valve, that is about $160-$225 to the total.

wokuku

Don't forget that this is just the upfront cost. There are other costs down the road such as new clutch/exhaunt/suspension work.

Fanman

All he is talking about is the cost of a turbo kit. A new clutch is recommended though there are people that just drive around on the regular clutch. I did for about 2,000 miles no problems. Also, you do not need an exhaust or suspension for the turbo kit to work well. It helps but is not necessary. The $5,000 that 8thRideris talking about is strictly for the turbo kit modification.

8thRider

mm...
would a supercharger work better than a turbo if I want higher WHP?

Fanman

Not the ones I have seen. The Blitz unit spec'ed out preliminary at about 40 whp, the Pettit at 50 whp (though this is a roots/screw type so hp & tq. come on right off idle). Don't know about the Axial Flow unit as nobody has a good grasp on it/final stats unless their name is Richard Paul. The Greddy gives you hp/tq right off idle pretty much (2500 rpm+) & has shown a good 60-65 whp gain. For me, even though some people complain it is a small turbo with limited upside, it is about perfect as it's power delivery happens at low/mid range. Some of the T3/T4 turbo systems will deliver more hp, but at higher RPM's. I'm willing to trade higher peak hp for low/mid range power.

8thRider

Im thinking of getting the greddy turbo as well...I know a BOV will probably be nice as an add on, but what other mods should i get with the cash i have?
maybe an ECU tune?

Fanman

Well, if you have $5K looking at the breakdown I have above, you're not going to have much money left over. If you wind up getting more after this than among the other things I would suggest :

1. Exhaust - More for looks & sound. Current stock tips are puny.
2. Clutch & Flywheel - ACT makes nice stuff. Do it at the same time.
3. Better Rubber - Go to a 245/40/18. If you are in the south a better, more traction-typr tire such as the Toyo T1R or Falken RT-615.

8thRider

~~
cool, better exhaust are awesome for the looks, but better body kit would do a much better job? as well as a high spoiler..^^
for exhaust, Im thinking of getting a dual muffler, for looks mostly.. :p

However, with only the greddy turbo kit, gauges + pod, and ecu tuning, apprxo how much whp can i be expecting? I would love to push it to 280-300, but first thing is saving up more cash for extras.... :D

Razz1

Wait for RP's Super charger.

In the mean time go to HDPE school 2 or 3 times.
Buy RB springs with Koni shocks.
RB sway bars.
245x40/18 tires
Then save more for the Super Charger.

Benefit = longer life due to less heat
Also a better power range than a Turbo.
But there are Turbo/Super Charger debates.

Sigma

With that you're looking anywhere in the range of 240-250rwhp.

army_rx8

hehe heck yes there are some debates...and there are so many variables to it that there may never be a concrete answer.

Fanman

Not realistic. Probably closer to 240-250 whp. Higher hp encompasses larger injectors & boost controller.

There are several heated debates on SC's vs. Turbos. As I've said before that is why i like the Greddy turbo kit. Response is in the low/midrange (peak hp is not as important to me). I will debate the "better power range" comment with somebody that has actually driven/has a turbo or sc'ed RX8. The problem with all these SC's is that none are actually out yet. Several companies claimed 6 months/1 year ago that they were coming out with one soon. To date nobody has a production/public unit. You can wait. Your choice.

TeamRX8

iTrader: (25)

I guess it wouldn't make much sense to spend it on your future rather than flushing it down the tube

Ike

If you're doing this to outrun Zs and STis don't waste your money. All it takes is about $500-1000 and you'll be seeing tailight on a lot of cars out there, even with your turbo kit. Hell, even stock STis and Evo can get very close or even break into the 12s. Now if you just want more power, by all means go for it. But if you think it's going to turn the 8 into some wickedly fast street racer save your money and maybe hope some breakthroughs are made with the Renesis in the next couple years.

Psylence

Ike is right, disappointing though it may be..

I don't understand why no one has been able to crack this thing. It boggles my mind that you can get more NA power out of a first gen RX7 motor then the Renesis. It's been 2 years now, and we're barely better off than when we started. What's up with that?

wokuku

Well his goal is to outrun 350Z and STI. I doubt a turbo kit alone is going to do it. And plus only upgrading part of the system without balancing the rest is just a poor man's way to mod.

Fanman

With a turbo kit, you will outrun a 350Z, & give a hell of a scare to an STI. 240-260 whp is not bad (considering we are starting at 180 whp). If these T3/T4 kits work out and start pushing it to 300+ whp that is very good as well. Realize that the S2000's (which start at around 200-210 whp) are getting about high 200's low 300's for their SC & TC kits. We are right in line.

Ike

The S2K is also notorious for taking pretty poorly to mods though...

Fanman

Don't I know it. If there is one car that breaks more stuff (modding)than our cars it is the S2000. But I do think it is the closest in terms of engine modding potential in that both cars have relitively high revving, very high hp/L ratios, maxed out from the factory type engines. Shows many where our cars can be (around 300 whp). We aren't talking about bulletproof V6's, built factory turbo cars here.