I dont know to much about turbo's. I just went from a Z-28 to a RX-8. I love it. Now, all this talk about turbos got me excited but I want to puts some performance parts on now. My question is what can I put on my 8 now that will not have to be taken off or replace when I put a turbo (whenever they come out with one). Here is what I am planning to get: Intake, Exhaust,Pully Kit, Straight Pipe, Flywheel, Clutch, (Greddy) EManage.


Can You Help Me?

 

intake and exhaust (blowoff valve is a must! sounds cool.) thats all i know. But you could use ur own exhaust i believe,

 

Mike you've pretty much got it figured out. That's about it and luckily they would be recommended before you go to a turbo.

He doesn't need a BOV until the turbo is installed.

 

BOV is the BLOW OFF Valve,Right?

That is the thing that makes a air compressor sound every time you shift?

 

My recommendation is to focus on suspension and avoid any engine mods until you get the turbo so you can spec everything you will need then. Even the exaust could potentially be different for a turbo setup vs a na setup. A good clutch and flywheel would be a good start as well.

 

Saw RX-7 that made that noise. I suspected BOV.

Sounded Fast!!!

 

Why would I need suspension if I am going to street race?

 

You are going to get flamed hard here for mentioning wanting to street race! Take it to the track. Stop making laws harder on everyone else for the mistakes that people make while street racing.

 

Have you been SA? Military Dr? If so you know how it is.

I did not mean street race like that, I mean:
If you were in your car pushing 300hp and a 350z (stock) pulls up to you and start messing with you. What would you do?


Another question rotarygod. How much hp does a stock RX-8 have? I've heard 247,then 238, then just pushing 200. I dont know.

 

If you ignore the suspension then you are going to have a lot of trouble putting down any real power in a usable fashion in terms of straight line performance. This is not a live axle car and that makes all the difference.

 

Really! I did not know that. I better look into it.



Thanks

 

If he does not have a turbo why would he need a BOV???

 

What about the E-Manage? Once I put the turbo on, will need some to re-program it?

 

Obviously you are going to have to have the intake and exhaust replaced after you go turbo. So don't put any money in there.

Is the Greddy Emanage up and running for the RX yet? Even if it is I wouldn't do that either till you go FI. Whoever does the turbo kit might offer a form of FMU or EMS with their kit. And YES the Emanage would not only have to be reprogrammed but rewired as well to take the turbo in to account.

I agree with the idea of staying out of the engine bay in general if you don't want to be replacing stuff.

Work on the suspension, new rims and tires and do a cat back exhaust.

 

Of what you've listed, skip the intake (TCs come with one), pulley kit (you may wind up relocating some of the existing pulleys), and the e-Manage (TC kits will come with their own ECU piggyback).

 

How about Exhaust? Can I put the exhaust on?

 

Yes but if your planning on using the exhaust for a turbo kit, you'll want to make sure it's 2.5'' preferably 3'' and mandrel bent.

 

Is Greddy good?

 

I'm far from turbo expert, but... you're telling me that a cat-back will have to be replaced because of a turbo? Why is that now? A header would need to be for obvious reasons, but the 8's exhaust system is pretty free flow as it is. So what's wrong with a cat-back?

Intake? Let's say you bought the Trust/GReddy turbo kit. It's got an intercooler so I suppose it's not a big deal that the intake is sucking air from inside the hot engine compartment. But would a little cooler air yield you yet still cooler air after the intercooler? If so... screw Trust/GReddy's intake and put on RE or HKS --> Trust/GReddy kit intercooler --> etc.


Well Trust/GReddy happens to be developing a turbo kit that's due anyday now. It's obviously going to be using eManage...

MazdaManiac successfully implemented eManage on his RX-8. The a/f and timing controls don't have to be rewired because you added a turbo. You just have new things that also have to be wired to the eManage and the whole thing retuned.

There isn't much available for "inside the engine bay" yet anyway. Do the intake, ECU, ground wires, ignition wires, cat-back, mid-pipe and flywheel. Then get to work on your suspension so you can put down all that turbo hp in the future.

In the beginning of your post TitanMSP, you said to NOT get exhaust and intake because they would be replaced when he get a turbo, but now you say to get a cat-back. Could you please clarify what your thoughts are here?

BTW... I wouldn't jump on ANY turbo or supercharger "kit" that comes out. Give them all sometime to work out bugs that didn't appear in the shop. Be patient grasshopper. Patience and well-thoughout mods win races and don't blow motors.

 

TC kits do come with intakes... that all look like exactly what we are telling people to NOT use right now. Like I said in my previous post... you do have an intercooler, but do you still want to pull in hot engine air? I'd like to think that the answer is still no. If so... then that RE or HKS intake will prove to be real handy. If not... then I'm wrong and don't waste your money.

OTHO... I believe the best intake gains without 90db intake screeching will be found by working on the VFAD (Variable Fresh-aid Duct)... the exact piece that NOONE has touched yet except Mazdaspeed (MS RX-8). In this case when FI is added, the VFAD probably won't be able to flow enough air to the engine and here I'd say the T/C kit intake is better.

Pulley kit. I can see what you're saying. But the 8's lack of pulleys me think this won't be a problem. A coin toss I guess.

The Trust/Greddy T/C kit... beautiful install. The turbo fits down underneath, right next to the engine and manifold. SSR's turbo sits in front of the engine. The Blitz S/C kit will sit on top of the engine, replacing all the stock manifolds.

eManage. Only get it if the T/C kit you are interested in uses it...i.e. Trust/GReddy or... you have having a custom job done.

 

wow, mike_rx8, thoughts of a turbo system should be really really really REALLY far from your mind right now. considering how much you know about it at this point, you'd be way better off just paying someone else to do it (it'll save you money in the long run).

and besides that, no street racing is not condoned here, i don't care who's "disrespecting" your car on what street where, it's stupid highschool bullshit. if your mental ***** size is related directly to how fast your car is, i feel very sorry for you.

 

Ok sorry if anyone was confused. Yes you can get a Catback and be fine. HOWEVER the exhuast is going to be completley different before that. IE Bye Bye NA headers to exhaust; hello Turbo manifold, turbo, downpipe to exhaust. It may come out in a completely different location (95% of the time it will on a NA to turbo covert) Therefore you should not do a full exhaust till you have gone FI. I don't think of a just Catback as "Doing an exhaust" sorry if I worded that funny in my first post.

And I agree with wakeech, Mike. You need to do your homework then start thinking turbo. I am not trying to be a dick I am just saying theres alot you need to know yet, so study up.

 

Is there is some thing wrong with me wanting my 8 faster than other cars in my town? I don't think so. Everyone has there own wants and opinions.

 

There's nothing wrong with wanting to go faster. There is also nothing wrong about having a thorough knowledge of the subject before you try it. You can't successfully go faster reliably if you don't know how and why things work the way they do. Just remember the one rule that everyone always forgets. There is ALWAYS a faster car out there somewhere. It's going to take far more than just a good turbo to make that statement false.

 

Know what? Your right, I don't know that much. Maybe, I don't need a turbo. And there is always going to be a faster car. There is only one car I want to beat. My friends 94' 300ZX TT. Now is that wrong?

By the way I just bought some after market parts. They are on order. Now to choose an intake