turbo swap or turbo kit???

wikdMK3

New Member
Apr 29, 2005
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Springfield,VA
i have a 89 n/a and i was wondering which was best. do a full 7mgte swap or just put a turbo kit on my n/a motor?? and which kits or combination of turbos and fmic do you recommend for my motor. thanx
 

supradan22

NA->TER
May 20, 2005
915
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ORLANDO FL
It all depends on what you want it would be alot eaiser too buy the 7mgte there are alot of topics like these lately whats the Rush with all the N/As wanting too boost
 

Supra Blues

Virgin Booster
Mar 30, 2005
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Supramania
supradan22 said:
It all depends on what you want it would be alot eaiser too buy the 7mgte there are alot of topics like these lately whats the Rush with all the N/As wanting too boost

Cuz boost = power.

The first thing I did when I inherited my 86.5 was swap a 7MGTE in. :evil2:

Personally, I think it would be easier to do a 7MGTE swap then adding a turbo on an NA.
 
M

Makavelli

Guest
Supra Blues said:
Cuz boost = power.

The first thing I did when I inherited my 86.5 was swap a 7MGTE in. :evil2:

Personally, I think it would be easier to do a 7MGTE swap then adding a turbo on an NA.

Price wise, what would I be lookin at to add Turbo to the NA (ballpark figure)
 

suprabad

Coitus Non Circum
Jul 12, 2005
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Down Like A Clown Charley Brown
I too have an N/A that im going to turbo and for what it's worth I've done some research on this and what I've found by talking to people who've done the conversion (adding a turbo) and the swap is that the 7mgte swap is the way to go, particularly if you have mechanical ability and are able to do it yourself...you'll save a ton of money and probably get a better result. However, from what I've heard the 7mgte (jdm's) are becomming hard to come by. If anybody has any insight into the availability of these motors I'm sure there are alot of us N/A owners who'd like to know.
 

Supra Blues

Virgin Booster
Mar 30, 2005
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Makavelli said:
Price wise, what would I be lookin at to add Turbo to the NA (ballpark figure)

Hard for me to answer, but here goes:

used 7MGTE $400 (front clip)
used AFM $50
intercooler, oil cooler and related parts and hoses $300
used turbo 5-speed ecu $50
Miscellaneous parts: sensors, relays, other misc stuff $500
Turbo rebuild: $450

Total on just the swap I spent about $2,000

But I also rebuilt the GTE $1500 (parts and machine work) Oh DON'T get gaskets from Rockauto, they suck a$$. And I had to buy a new flywheel and clutch and other miscellaneous gaskets and such that are not directly related to the swap.

To do a straight swap I'd budget around $2,000. I'd reccomend, if you buy a used GTE, to at least change the head gasket and other old and cracked hoses and gaskets.

Also visit http://www.speedtoys.com/~stryder/
 

RIPDOTCOM

New Member
May 22, 2005
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You could always setup a turbo on a NA for low boost with a FMU, Retarded timing, manifold, elbow, Downpipe, Turbo, BOV. This would be good for around 5Psi and you could piece it together for around $800.00 easy. Granted you would max out at around 230-240HP. But thats like a stock 7MGTE.
 

mcpcola

7M's = Peoples Champ
Jul 4, 2005
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I really looked in to this and you do not want to turbo a NA car like this one because of the Distibuter you will not beable to control you Exhuast gas heat with timeing. Bottom line is you will sacrific bottom end for top end or top end for bottom end. just not a good idea on a older style ignition system car
 

SupraMario

I think it was the google
Mar 30, 2005
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The Farm
well now that everyone has said what they had to say,
^^ to mcpcola, it is fine to turbo an NA, just make sure the engine is ready for the T, the blocks are the same as a T model also.
NA's there is no kit out there to turbo them, srry, ur going to have to build one as in look for T parts.
to turbo an NA u need most of the T stuff, but u can run without the electronics, and u cant push that much boost, 9psi is prolly max.
doing the GTE swap is the easiest and simplest way to get boost, and more power.
Venus-auto has engines and gets them in weekly. the JDM supply is running low but the USDM is still a lot more available than lookin for a JDM.
 

bluemax

The Family Man
Mar 30, 2005
418
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Orange County, CA
I modded my NA to a stock Turbo.
Now I'm spending more money with aftermarket stuff.
I should have just gone with as much aftermarket stuff as I could afford at the time.
But I'm glad I did the full Turbo mod and not just the NA-1/2T mod. The turbo electronics is much different for higher power.
 

SupraMario

I think it was the google
Mar 30, 2005
3,467
6
38
38
The Farm
bluemax said:
I modded my NA to a stock Turbo.
Now I'm spending more money with aftermarket stuff.
I should have just gone with as much aftermarket stuff as I could afford at the time.
But I'm glad I did the full Turbo mod and not just the NA-1/2T mod. The turbo electronics is much different for higher power.

U mean u swaped in a turbo engine? because 1/2NA-T is puting turbo stuff on the NA block thats what it means.
 

supradan22

NA->TER
May 20, 2005
915
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16
ORLANDO FL
I think he means putting the turbo stuff in the N/a since I just got a second 7mge block of ebay for 100 bucks running soposibly Im gona build the block in my car for turbo as in buying the low compression pistions so I can boost its gona be sweet as long as you build it up right it will be good.


oh and another site with some great info you could use is here
http://www.geocities.com/jt87na/na-t.html
 

bluemax

The Family Man
Mar 30, 2005
418
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Orange County, CA
Oh yeah, I forgot about the compression.
You really want the lower compression pistons.
Besides, you probably want forged aluminum pistons anyway.
THe NA>1/2T is where you take the turbo stuff and install it on the NA.
The turbo has a different ECU, 440cc injectors as opposed to 380cc on NA, higher flowing airflow meter, not the flapper one the NA has, oil cooler, direct fire ignition with 3 coils instead of the distributer, the intake and TB is different, and probably a few other things I forgot too.
So you really want to go with the full mod if budget permits.
 
M

Makavelli

Guest
bluemax said:
Oh yeah, I forgot about the compression.
You really want the lower compression pistons.
Besides, you probably want forged aluminum pistons anyway.
THe NA>1/2T is where you take the turbo stuff and install it on the NA.
The turbo has a different ECU, 440cc injectors as opposed to 380cc on NA, higher flowing airflow meter, not the flapper one the NA has, oil cooler, direct fire ignition with 3 coils instead of the distributer, the intake and TB is different, and probably a few other things I forgot too.
So you really want to go with the full mod if budget permits.

What kind of rwhp can I expect from an upgrade like this?
 

bluemax

The Family Man
Mar 30, 2005
418
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0
Orange County, CA
You'll be looking at stock turbo HP. I don't know what the dyno'd power is. But the motor was rated for about 220 or may be a little more. You'll notice a big differenct though and probably want to get into the high HP mods. So why not just start there and save some money?

DC34DC311, you're right, NA-1/2T is when you just put the turbo on an NA and keep everything else NA. I guess I wasn't too specific. Sorry.

When I did my conversion, I got a JDM block and head (because of a blown HG). I was lucky because the block came with a US head on it. (Or at least thats what the place that imported the motor told me). The Japanese don't use EGR's so the EGR port may not have been in the head. The EGR port was just plugged. If you don't have to worry about smog, then you don't need the EGR.

Some guys have done this most successfully. But I opt not to. I believe the ignition is an important part of the turbo motor and the injectors are too small for the turbo.