^ word

 

+1 ----^

 

yeah. im not gonna turbo this one. unless i could do a turbo II swap for an amazing price. im just gonna look into buying a turbo II. it gonna save me all the complications

 

So I'd say the best choice you have is:

-Find the douche that traded you and trade back. If he doesn't find a way to make his life hell.....eh nm...accept your losses and sell the turbo on craigslist or some other forum that would be the appropriate for its application.

 

LOL, there are no "complications" in boosting an NA engine.

Well damn, I guess everyone should stop boosting high compression engines then. No boosting S2000's, 350Zs etc.

There are safeguards that can be ran in the place of "excellent tuning" or any tuning at all. Its called low boost, high octane, water/meth injection, retarded timing curve, colder plugs. Run either of those until you can afford a standalone. Microtechs and Haltechs are going for ~$600 these days.

If you can confirm 100% that the turbo you have is the same as rereme's then by all means install it. Replacing it with a 1970s POS stock turbo would be dumb as hell. Do make sure the wastegate is big enough.

 

What I'm saying is, if you don't know exactly what you're doing you're going to risk your motor. Rotarys are more temperamental than piston motors. Simple fact. Take for instance...the RX8. There is a turbo kit out there. Overpriced, but Greddy put money into research and development to make it. Guess what? All that money and the gains are so minimal no reasonable person wants to even spend half the money. And that was a large established and educated company that designed the kit. What will a 17 year old do? Blow up his motor. I'm offering the best advice for someone in his position. Simple as that.

And I stand by what I said. Boosting high compressions NAs is somewhat complicated. What would you say is "low" boost? If you want to play the "oh we can run high octane, run meth/water injection, play with timing, run low boost, etc" in place of tuning...that's just stupid AND somewhat complicated. Compare it to turbocharging a lower compression engine...

 

I sold one of those turbos for $100....

 

Good life lesson here. I was replying to some of your posts in the new user forum then I recognized your name. I was hoping that the "garrett turbo" you were referring to in the new user forum was in some form of kit, or at least a turbo suited to a rotary. What you have there, as already mentioned, is suitable for a small displacement 4 cylinder engine and would be nothing but an exhaust plug on a 13B.

ALWAYS ASSUME THAT SOMEONE SELLING SOMETHING IS OUT TO SCREW YOU! Always! This goes for an individual on this forum, an eBay seller, and a professional salesman. It is not because they are bad people, but because an important part about being a salesman is to give yourself a better deal then what the buyer receives. It is unethical to sell something to someone knowing full well they are totally unqualified for it, but then again, it is also the buyers job to have done the research to know what is involved in a purchase.

Going the TII route (or a swap, if your existing engine is bad) is probably the easiest and most reliable thing to do. Then again, as you have not even driven this car yet, you will be surprised at how fun the "slow" NA RX-7 is.

 

^ well said Aaron Cake..

 

i dont think ill be surprised with the speed of the 7. my integra was the fastest car ive ever driven. it doesnt seem like it could be much faster than that

 

If you had a GSR or something similar, the RX7 won't be as fast...much more fun to drive though.

 

so it wont be as fast as the integra? cuz the integra topped out at 137. and the acceleration was pretty good.

 

The NA RX-7 will do 140mph btw. Low speed acceleration an LS might beat it.

Its speculation to assume no one wants the RX8 kit because of the price alone. Its also speculation to assume everyone that buys one will blow their engine. I doubt any 17 year olds buy RX8s, let alone GReddy turbo kits...its irrelevant unless the OP is 17. Even then its barely relevant, since age means nothing and proper research and open-mindedness to learn from others will lead to success in most projects.

If its complicated because you have to know what you're doing (i.e. doing research, reading, learning from other people's experiences) then building any turbo RX-7 is complicated.

Low boost would be roughly 5-6psi, its what I've been running for the last 8500 miles on the stock TII EMS. Running high octane (93 is high since stock is 87), water/meth, retarded timing, or low boost are all not stupid or complicated. You only have to run a couple of them, not all.

If we compare it to boosting a TII engine then it will be much more complicated and stupid to buy an old TII engine if he already has a good NA engine in his possession.

 

really? that sucks. mine was an LS. i thought it would do more. the guy that had it previously said in 4th gear going 60 the rpms would be at about 1100. the integra did 3500 going 60 in 4th.

 

It's not speculation that most people look at the cost to power benefit and realize you can't squeeze much more power out of the already high compression motor in the Rx8. I never said people who buy the kit will blow their motors. I said that Greddy, a large company that put a good amount of money into R&D for that kit, made the kit and that the gains are minimal. And from that I went on to say that a 17 year old kid (OP is 17) who doesn't seem to know very much about turbo charging or anything of the sort (Seems like he thought he could just stick the turbo on and a 3" exhaust and somehow make 80 hp because someone told him it would....) would most likely learn from another mistake (bye bye motor), so I gave him the most reasonable advice someone could-buy the TII motor if you want more power.

And yes we learn from others blah blah blah, but guess what? You learn the small stuff first...the first project I tackled wasn't a rebuild, turbo conversion, or a motor swap. If you did, good for you

And an old TII engine? Everything is a gamble, but having everything already setup and putting it in there is far more simple than piecing together a turbo kit and all the errors and problems that go along with it.

 

GReddy made a UNIVERSAL kit, meaning they had no regard for specific applications. It is also probably worth $5000+ which is ridiculous for someone that can do his own research and piece a superior kit together with much less money. The RX8 is also higher compression, side exhaust ports, much more expensive parts, its a completely different platform. The kid may not know anything about turbos and stuff but don't discourage a potentially motivated person by saying "you're young so it is useless for you to try". If hes an idiot that thinks he can do it without doing the proper research after being warned then he can go knock himself out. Harsh but effective.

An old TII engine. As in one that can't be compression tested, and has likely been sitting for years; vs. a perfectly good compression NA engine that he already has installed in his car.

 

There seem to be a number of turbo kits for the RX-8 from Greddy, Esmiral Racing and some no names. The Greddy kits sure seem to be specific for the application, considering the exhaust manifold and all. I'm not an RX-8 guy, so this is just from 10 seconds of checking the RX-8 forum.

I think the main point trying to be made is that there is less skill in bolting in a TII drive train then turbocharging the NA engine for most situations. Assuming it is a GOOD TII drivetrain, of course. Not all used TII engines are junk. Buy from a reputable vendor and you're likely fine.

 

you answered his question with something that sounded pretty ignorant/arrogant. how many people who try slapping a turbo onto an n/a think it's easy? most all and even if they do realize they need high octane fuel and or aux.injection and standalone, how many are experienced in it? low boost on a turbo 7 isn't as easy as you make it sound without robbing some of that power by putting smaller piping on or restrictive filters/cats, which in turn also nagates some of the purpose of putting the turbo on in the first place.


most of the 8's that get the greddy kit wind up with a brick in the engine bay within a year.

 

GReddy has a street and race turbo kit. Besides the fact that "race" can involve a variety of different turbo setups for different forms of racing, the gains on both are pathetic; but NOT because its a high compression engine. Its because its a universal kit, as in if someone built their own or modified the GRreddy kit there is more room for HP gains via EMS tuning, different turbo, more boost and AI, E85, etc. and therefore is not comparable to boosting a 2nd gen RX-7 in which everything will be custom anyway.

I "slapped" a turbo on my GXL with no prior experience, the biggest job I had done before was replacing the clutch, and my friend did most of the work on that. I read "street turbocharging" from Mark Warner, did extensive searching on this board (note that S5 6PT setups aren't common at all here) and went at it. At first I went the *** backward route of using the stock NA manifolds (much more fabrication required) and then switched to the TII manifolds, in which nearly everything bolted on with little modification.

Low boost on a turbo 7 is in fact very easy. With a ported wastegate the car can be run off the wastegate spring with no boost creep. I run the stock TMIC, 3" downpipe, 2.5" straight through exhaust, 2.5" TID (one 45* bend) and get no boost creep on a streetported 9.7:1 engine. The fear of high compression engines is long gone with the introduction of E85 and AI, people that do big builds throw in 9.4s or 9.7 rotors just to be different and put down 400whp+ easily on relatively low boost.