Hey, so basically if you want turbo and have a gxl you need a whole new motor that is turbo in order to get it? Or can you get some kind of conversion kit or somethin'? Reason I ask is because you can make other cars that are not turbo, turbo without swapping motors. But is the rx-7 different in that area? :confused:

You can make a custom turbo setup for the car, but the fuel system and drivetrain won't really be up to the task. The best way to do it is to use the TII motor, transmission, driveshaft, and rear, along with the sensors and ECU. If that seems like something you would do then I can give you a list of everything needed.

u do not need a new engine u need as follows



turbo

piping to throttle body

clamps

custom oil and water lines

boost controller

tII injectors

tII downpipe

custom exhaust flange to mate tII turbo

I'd get it rebuild w/low compresson rotors to, or you'd have to run low boost (5psi or lower) to save your seals.

I'd get it rebuild w/low compresson rotors to, or you'd have to run low boost (5psi or lower) to save your seals.[/quote]

You can run pretty high boost levels with compression rotors, but the tuning has to be good.

SH**!! Where were you guys when I wanted to turbo my car, HUH?! Now some chick wants to know and its like "OOOHH OOH, I know!! I know!!" LOL



Mike

(spent about $2000 grand to turbo engine swap)

LOL, this from the guy who needed help on a rotary engine research paper.



rotor keychain.....here I come

I figured I'd answer one for a change since I hardly ever do anymore. https://www.nopistons.com/forums/pub...DIR#>/cool.png

I'm not king post *****, so don't bust on me. https://www.nopistons.com/forums/pub...#>/biggrin.png

So what is the least expensive way out? If I keep my engine and get turbo and do what I need to do, will it be as good as any other "stock" turbo car? Or would a turbo engine be best? I am going toward just keeping my engine, and go from there. Either way I am probably going to spend a lot of money. But I just want to be sure if I should keep my engine or not. Cuz I don't want to buy a piece of sh*t engine with a million miles on it just cuz it's turbo. So basically I'm confused. Has anyone else kept their engine and got turbo in here? And if so is the list that bigtime made up all I need? Cuz I can always get a new drivetrain and fuel system if that's all that's gonna not keep up with the turbo. Cuz I would want to upgrade those anyway. I'm sorry this is so long, but I am seeking different opinions in the situation. :smilewinkgrin:

Yah, with all this extra time on my hands, with the car being in surgery, bigtime is gonna have to hand his crown over next month

Good luck to you :thumbsup: https://www.nopistons.com/forums/pub...IR#>/smile.png

Probably having patience and buying a complete TII with a blown motor for a grand or less. Than you can either buy a J-spec engine for 1100 or 1200, or rebuild the stock one. Either way you don't have to worry about swapping the drivetrain and all that other stuff, unless of course you like working on your car, and breaking stuff is half the fun :smilewinkgrin:

Uh, I think you need more than that Bigtime. What about an IC? Intake manifold? Fuel pump? Don't get too pissed when your engine blows up on your test drive. :newlaugh:

Isamu is right, you may just be better off finding a Turbo II with a blown engine, swap the **** you need out of that, and rebuild the engine, or order up a j-spec engine for around $1000. 13BAce has done the swap, you can ask him for all the info on it.

Definitely not a bad idea, the only reason i did the swap on mine is because it was time for a new engine neways, but It has been close to 2 1/2 months and I still haven't finished. Getting all the parts is a pita. I woulda been done a long time ago if my damn parts woulda been here when I was told they would be. On the other hand, the extra time has really given me a chance to inspect and dissect the T2 engine. In that respect, I've learned an awful lot. Plus I had time to clean and polish the engine block and accessories, so now it looks real purty!



MG

All right then. It seems as though most of you guys think that a new engine would be best. So if one of you guys would be able to give me a list of things needed(13Bace) https://www.nopistons.com/forums/pub...DIR#>/wink.png , I would really appreciate it!! :p And maybe an estimated price for this whole thing. Thanks again!

Your best bet would be to find a wrecked TII that runs. Here's a link for a converion on an 88 convertible: http://www.rx-7.cc/TII.html . What year is your car?

Here's the basics on what I HAD TO get for my 90 Gxl to turbo 2 swap:



series 5(89-91) Turbo 2 engine. (I got mine from fc3s.org, It's J-spec, but had all peripheral parts minus BOV and it's in great shape)



89-91 turbo 2 rear end(both halfshafts, driveshaft, differential)

89-91 turbo 2 5-speed transmission

90 turbo 2 engine wiring harness(the 90 fits all series 5s)

series 5 MAF(boost/pressure) sensor

series 5 ECU (part# n370)

upgraded fuel pump , i just got the Turbo 2 one but walbro 255 lph would be better

an exhaust sytem for 89-91 rx-7 turbo 2



I felt I've left something out, but you absoleutley need all of this stuff, at minimum. Clutch came on engine, so did good turbo etc.... You probably want to get some boost/temp gauges too.

Oh yeah I got a turbo 2 hood also, but if you're smarter than me, instead get a front mount IC and keep your old hood. You'll have the "sleeper" look, plus more HP and it'll probably cost bout the same if you fiind a good used FMIC.

If you have a 87-88 GXL change all the "series 5" listed above to series 4. Rotaryman88 put a series 5(89-91) turbo engine in his 88 NA rx-7 and from what I understand it was even harder.

Let me also change my earlier post to "I spent about $3000 to convert mine"

My car is a 90', to answer your question 13Bace. https://www.nopistons.com/forums/pub...DIR#>/wink.png

Then the conversion will be easier. Like OKIE said, you'll need the complete motor, drivetrain, ECU, some sensors, and the engine wiring harness. If your car was an 86-88 the wiring would be trickier. On 89-91's you just have to swap out the harness that runs through the passenger side of the firewall.

it will be faster than a normal t2 because a n/a motor has more power than a t2 that is not boosting

all of this plus

front mount intercooler

manifold

new complete exhaust system

bov

TID pipe

some kinda intake kit thing

AFR computer I would think and FCD, or Haltech

external wastegate

probably some other stuff too.

The biggest question is whether or not you think your engine is strong enough to take the extra boost. My T2 engine supposedly has under 20,000 miles, no way to be certain, but it definitely seems in pretty good/new shape. That is why I chose to do the full conversion. If you really want to buy a kit though, I think you can find some at

atkinsrotary.com. I didn't just because I didn't think my engine could take it.

it will be faster than a normal t2 because a n/a motor has more power than a t2 that is not boosting[/quote]

It has a higher compression ratio....



S4= NA- 9.4:1 Turbo- 8.5:1



S5= NA- 9.7:1 Turbo- 9.0:1

Another option you have is to sell your GXL, and go buy a Turbo II. That would be by far the easiest too. :smilewinkgrin:

Yeah I could buy a t2, but the only thing is that I can never find them from 89-92. And plus I would wanna upgrade the stock turbo anyhow. True it would be easier. But whatever, I might as well upgrade everything while I'm at it. And yes it will cost a lot of money, but I'm in no rush to get it all done at once. But hopefully I'll get some form of turbo soon! https://www.nopistons.com/forums/pub...DIR#>/wink.png

There is a Turbo II engine for sale on ebay, here is a link....

TII engine on ebay.



http://images.andale.com/f2/129/126/...1290_13bt2.jpg

Cool, thanks. But another thing I'm wondering is would I be able to use a t2 transmission with my gxl motor, and some turbo, etc. In other words if I just used the t2 transmission and bought some turbo, would that work too?(And of course along with all the other stuff I would have to do). Like obviously I'm gonna have to get a new exhaust system, intercooler, and lines and stuff, but that is the main thing I was wondering about. https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

The TII transmission will bolt to an NA motor, but you'll need the TII clutch, flywheel, and starter as well. If you don't want to use the TII rear then you'll have to do something about the driveshaft.

whoa a jspec engine notice rotary turbo on the intercooler https://www.nopistons.com/forums/pub...DIR#>/wink.png

I always wondered why my j-spec only said rotary turbo on the IC. I thought maybe it was some cheap knock-off. lol



Have to admit his IC looks a hell of a lot better than mine.



Seems like I've seen more j-spec t2's than a-spec. I've only seen one or two a-spec motors.

Moved this here. I hope people will read this before asking if it can be done.