2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

NA Turbo vs. J-Spec Turbo

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Old Jan 23, 2004 | 12:39 PM
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NA Turbo vs. J-Spec Turbo

I am wanting a turbo fc. I already have a na motor with bad water seals, what i am wondering is would it be cheaper to go the j-spec route or to turbo the motor after i reseal the motor. thanks
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Old Jan 23, 2004 | 01:07 PM
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Are we including shipping costs in this ? Thats a huge turn off is shipping lol
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Old Jan 23, 2004 | 05:29 PM
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cheaper to sell your car and buy a real turbo FC
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Old Jan 23, 2004 | 08:07 PM
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Inlude shipping.

I dont have the body yet, just the motor.
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Old Jan 23, 2004 | 08:10 PM
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The easiest way is also usually the cheapest way for this, like Scott89T2 said, sell your NA and buy a real T2.

Next good choice would be to swap in the J-Spec engine, because of the turbo engines HUGE advantages over the NA engines. Also, remember your NA drivetrain and some other parts are not as strong or good as the ones on the Turbo cars...
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Old Jan 23, 2004 | 09:09 PM
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Originally posted by Sponge Bob Square Pants
...Next good choice would be to swap in the J-Spec engine, because of the turbo engines HUGE advantages over the NA engines.
Ummm yeah... Sure, like what?
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Old Jan 23, 2004 | 11:52 PM
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Originally posted by White_FC
Ummm yeah... Sure, like what?
like... a turbo, lower comp rotors, higher flowing injectors, and lost of other stuff that's better for turbo engines than NA engines.

I think you may have read that wrong... maybe as something like "the jspec engines have a huge advantage over the US spec ones" ?
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Old Jan 24, 2004 | 12:08 AM
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Originally posted by Bigretardhead
like... a turbo, lower comp rotors, higher flowing injectors, and lost of other stuff that's better for turbo engines than NA engines.
The original poster said he wanted to add a turbo to his originally N/A motor after he rebuilt it, so we can discount the fact it has a turbo an 'advantage', lower comp rotors in my very humble view are a negative, buying new injectors is not a big concern in the grand scheme of things.

So no I think I read it just fine.
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Old Jan 24, 2004 | 01:56 AM
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I think he is saying "should I buy a N(orth) A(merican) turbo or j-spec turbo." hence "NA Turbo"
just my $.02

-Ben

edit: i just reread his post. but still the title is weird.
and, get a TII dont put a turbo motor in an NA car, alot more money and time than is needed.

believe me.
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Old Jan 24, 2004 | 02:00 AM
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oops posted on my friends name...

-Ben
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Old Jan 24, 2004 | 03:53 AM
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Why do people think it's so easy to find TII's? Obviosuly people aren't selling them because everyone wants the damn things, and i'm not aobut to drive 800 miles to pick up another 7 again.
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Old Jan 24, 2004 | 09:18 AM
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i just spent $2000 putting my jdm turbo 2 w/ 44000 kms
in my non turbo body..ofcourse i did it myself...so thats no labor just parts...i dought you can find a turbo 2 for that much and that little miles on it
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Old Jan 24, 2004 | 09:21 AM
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and the people from japan told me that the s5 turbo 2 came with more horsepower in japan than in america...is this true?
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Old Jan 24, 2004 | 10:14 AM
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Not true. All engines were the same. The only differences were in emissions equipment (no EGR valve...but S5s don't have EGR anyway).

BTW, the "advice" of "just buy a TII" is really starting to get on my nerves. It's just not the simple, and this may surprise a few, but to some of us our cars are more then a hunk of metal.
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Old Jan 24, 2004 | 10:22 AM
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Originally posted by Aaron Cake
BTW, the "advice" of "just buy a TII" is really starting to get on my nerves. It's just not the simple, and this may surprise a few, but to some of us our cars are more then a hunk of metal.
so damn true. i couldn't THINK of getting rid of my FC to get another one. and i also WANT to do the swap myself... not just go out and "buy a TII".
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Old Jan 24, 2004 | 10:35 AM
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hell yeah
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Old Jan 24, 2004 | 12:39 PM
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Originally posted by calio64
i just spent $2000 putting my jdm turbo 2 w/ 44000 kms
in my non turbo body..ofcourse i did it myself...so thats no labor just parts...i dought you can find a turbo 2 for that much and that little miles on it
including the engine? and labor and parts? if it did thats cheapo as hell
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Old Jan 25, 2004 | 01:45 AM
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the NA (Naturally Aspirated) has a section in the faq for people who have added a turbo to the NA motor instead of buying a factory turboed engine. I found a JDM/J-SPEC engine and trans for 500USD and i can get a good body with a NA motor still in it (doesn't run) for 450USD. So what my question was: rebuild the NA (Naturally Aspirated) engine and add a turbo, or buy a JDM/J-SPEC and swap into the car from a cost standpoint. Gonna do the labor myself. I wont be happy with it otherwise.
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Old Jan 25, 2004 | 01:57 AM
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Well from a cost perspective obviously buying an import motor and just chucking that in will of course be cheaper than rebuilding the N/A motor...

But the import one might be about to die? so would you really be actually saving money? maybe not....
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Old Jan 25, 2004 | 02:30 AM
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Its going to cost you more money and time to put in a turbo motor vs. getting a TII, but I think its more satisfying, and you know what is in it when you build it yourself.

-Ben
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Old Jan 25, 2004 | 04:49 AM
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QUOTE]Originally posted by Scott 89t2
cheaper to sell your car and buy a real turbo FC [/QUOTE]

I don't completely agree, if you want the "real deal", then absolutely just buy a TII. However, if you get lucky enough and you search vigiliantly you can easily build a S5 "TII" out of an NA way cheaper than buying a nice real S5 TII.

My motto has always been: If you can't find your TII, build it.

Have fun, good luck
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Old Jan 25, 2004 | 10:23 AM
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If you wanna build yourself a nice gen 2, get an n/a and work with it, suspension upgrades. brake upgrades, engine upgrade and it will cost you less cause you dont have to spend the extra to get the turbo model, even if you get a t11 you would still end upgrading suspension brakes and so on and youll end with the same end result just spent more.
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Old Jan 25, 2004 | 10:32 AM
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Originally posted by dorifc3s
including the engine? and labor and parts? if it did thats cheapo as hell
everything... engine, tranny,ecu, wiring harness,lsd,driveshaft...didnt pay for labor cause i did it myself
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Old Jan 25, 2004 | 01:15 PM
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Originally posted by Randon 61
the NA (Naturally Aspirated) has a section in the faq for people who have added a turbo to the NA motor instead of buying a factory turboed engine. I found a JDM/J-SPEC engine and trans for 500USD and i can get a good body with a NA motor still in it (doesn't run) for 450USD. So what my question was: rebuild the NA (Naturally Aspirated) engine and add a turbo, or buy a JDM/J-SPEC and swap into the car from a cost standpoint. Gonna do the labor myself. I wont be happy with it otherwise.
I wouldn't suggest "adding a turbo" to an NA engine. You could end up payin a lot for that also, oddly enough. If you want a turbo FC, then get the turbo FC stuff. I mean they designed a turbo model of these cars and doin the swap is fun.

good luck man
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Old Jan 25, 2004 | 07:33 PM
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Alright, now that the first question is out of the way, what kind of boost can I run using the stock NA rotors and 3mm apex seals, street ported?
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