2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 02-04-07, 10:45 PM
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if you cant beatem use them

what do you guys think bout this hahahaha first time having turbo where does what go to..like on the exhaust side the four bolt holes etc etc... where do i hook up the waste gate and so on




Old 02-04-07, 10:52 PM
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oh and if i could see a clear pic of a turbo installed and all its connection that would be great
Old 02-04-07, 10:58 PM
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.......this is a disaster waiting to happen.....
Old 02-04-07, 10:59 PM
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well i picked it up for free
Old 02-04-07, 11:03 PM
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you need ALOT more than the turbo itself, besides that I don't really know anything on the matter, maybe go look through some of the stickys

but I think Cpt has it right haha
Old 02-04-07, 11:08 PM
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well you might think its funny but i just wanna hook it up in my n/a and just see if it works.... aka just sitting there spinning... and i know i need more than just the turbo im just waiting to graduate college tohopefully get some money
Old 02-04-07, 11:14 PM
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You have a few problems.

First, and this isn't the big one, you don't usually want to use any random turbo. Turbos are built to operate efficiently with specific engines producing specific amounts of power. There's a lot of math is choosing the correct turbo for an application. So even if you can get this to work, it might not be at all worth it.

Second, physically attaching it is going to be a big job. Unless that happens to bolt up to the stock turbo rx7 exhaust manifold (if you even have one?), you're looking at a custom manifold to even be able to attach it to the engine. You'll also need a custom downpipe to run exhaust to it. If it doesn't have an internal wastegate, you'll need an external one, attached to the exhaust manifold. You'll also want an intercooler to handle the hot air from the turbo. And you may need to run oil and coolant lines to the center of the turbo.

Third, you'll have to upgrade your fuel system, at the very least the injectors and probably the fuel pump. And you'll need a new computer that can be tuned for the custom setup.

Hrm, there's probably more, but that should get you started.
Old 02-04-07, 11:15 PM
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Originally Posted by Cpt.Zanzibar
.......this is a disaster waiting to happen.....
LOL... I laughed so hard when I saw this comment!

Anyway, I think you need to search and read into boosting an N/A. It's a lot harder than you think.
Old 02-04-07, 11:29 PM
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i have read aaron cakes na to turbo so many times but i just posted the pic so you guys can tell me where everything goes and there was an external waste gate but i was playing with it and took it off......ooops well thanx for not flamin so bad....
Old 02-04-07, 11:40 PM
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i think you should sell that (since it was free) then buy a stock rx7 turbo. it will make your life a little easier since you can get a stock rx turbo manifold.
Old 02-04-07, 11:43 PM
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bolt it right up the the maf, then run the other end to radiator

seriously though, if you have to ask these types of questions maybe you should get someone else to do the swap for you. this isnt a job for just anyone to jump on and do. you have to know whats going on and have all of the parts (the correct ones) ready
Old 02-05-07, 01:36 AM
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if youre stuck on boosting an N/A check out atkins rotary.

if youre trying to tackle this yourself, maybe you should switch majors... say automotive engineering or mechanics.

search around for rx7 shops in your area, you'll be glad you did!

chris
Old 02-05-07, 11:22 AM
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That turbo is a toyota turbo, comes in mr2 and celicas all track, My friend was doing reaserch on it and looks comprable to a 40 trim, hope this helps you in some way, the turbo is water and oiled cooled and is internally gated.
Old 02-05-07, 11:36 AM
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Why not ebay that Little thing and buy a stock S5 turbo or similar?
Old 02-05-07, 12:20 PM
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It's also a stock turbo on a MK3 supra. You could get a spare NA manifold or turbo manifold and have someone weld a new flange on it for that turbo. You'd also have to block off the stock exit port(whatever you'd like to call it) on an NA manifold if you used that. Then you'd have to get a few gaskets and a downpipe and your exhaust part is done. Then you'll need coolant and oil, perhaps try to use a T fitting off of the oil pressure sensor and then tap the oil pan for the return coming out of the turbo. Then for coolant you could probably take it from the coolant lines running off the rear iron to the water pump which would be ghetto but it would work.

Next you need an intercooler and some piping, since you're being cheap, go to the junkyard and find one that has an inlet and outlet the same size as that turbo. Go to autozone and buy some of the really long *** flexible radiator hose(were talking about being cheap here guys) and some clamps, find whatever hole you can to run the pipes to the front of the car and attach the intercooler with zip ties. You'll also need an adapter to hook it up to the throttle body elbow. You'll also need piping to go from the turbo to the MAF, which would be the same principle, but since it isnt pressurized you could use dryer duct piping in this case.

Wow look you have it hooked up, now here's the more expensive part.

You'll need

TII ECU
TII Boost sensor
TII MAF Sensor(I think)

And a good fuel pump, get a walbro from ebay for about $90 or so. OR find a used FD pump or supra pump. Make sure you use a new sock and a new filter.

Now you hook all of that **** up in whatever way is necessary, and start boosting and burning the living **** out of you clutch as well as having horrible boost lag while being on a stock NA exhaust, well, i guess it couldnt hurt to just run the downpipe longer and remove the cats.

So yeah thats about as cheap and ghetto rigged as you can get.
Old 02-05-07, 02:37 PM
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uhh... i wouldn't trust the stock TII ecu to work correctly with it alone, not if you value the integrity of your seals. Id get an SAFC or other piggy-back fuel controller to adjust the TII ecu's output to your engine's needs, or just buy & build a megasquirt and have a single, tunable unit
Old 02-05-07, 06:42 PM
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wow thanx for the input guys and not flamin but i forgot to put up this pic



Old 02-05-07, 07:54 PM
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that looks smaller than the stock mazda intercooler. I'd stick with mazda stuff. RX-7 get hotter than Mr2's and supra's. What works for toyota might not work for the rx. Do you really want to be the one to try and hook all this toyota stuff up to a mazda?
For real, sell that stuff and buy mazda s5 turbo, manifold and intercooler, or upgrade.
Old 02-05-07, 10:51 PM
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Wait up, where are you located? Does it have any shaft play? I have a friend that might want it.
Old 02-06-07, 01:01 AM
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that turbo looks tiny
comparing to the size of the vacuum hose to the wheel and housing...
and then whenyou compare that with the hotside, it makes it look even smaller...


if you dont even know where to put the 4 bolts, disappoitning results are waiting to happen...
Old 02-06-07, 01:04 AM
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since you are in fairfield, i got a turbo swap i could sell you, i can even install it for a good price
Old 02-06-07, 01:17 AM
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If he really wants to experiment with it let him. I think i'm the only one who's offered a constructive post to him.

If he wants to do it for cheap he will get a used TII ECU for $50 and do that. If he even had the money for a MS he wouldnt be playing around with this stuff i'm sure.
Old 02-06-07, 09:41 PM
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**** that! Give it to me for the price of an S4 turbo and I'm pretty damn sure my friend will buy it.
Old 02-06-07, 11:29 PM
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oh my new location is marysvill and the turbo does have shaft play and the intercooler is off of a saab...well i guess ill just have to wait and save up for the 20b....the turbo is off a mk3 supra, me and my friend use to compete in rx7 vs supra both n/a but his car was supposedly never in good cond...until he swapped out for a 2jz turbo motor....that bastard ima go 20b on his ***
Old 02-06-07, 11:56 PM
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i am not a big turbo guru but i am positive that shaft play=bad bad bad!!!!



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