Was the orginal 12at jdm motor a t3 flanged system???

 

No.

 

I heard it was

 

Since we didn't get the 12AT but the Aussies did, I'd have to concur with REVHED. Even the S4 turbo wasn't a T3 pattern. I do believe that one of the aftermarket turbo systems for the 12A was a T3, but not the OEM one.

 

Yes, the 12at used a standard T3 flange on the factory turbo.

 

all the 12a turbo jdm flanges i have seen have been advertised as t3 thats why i asked. i know they used the ht-18 bm which is a spin off of the s4.....isn't it?

 

Why?

 

then what is the foot print on the stock 12a turbo manifold? s5 turbo bolt up????

 

S5 turbo is a T3 pattern, S4 has it's own unique pattern. Both turbos are Hitachis but not interchangeable

 

This is getting confusing. lol The S5 turbo is definately not a T3 pattern.

It appears the 12AT might indeed be a T3 so I stand corrected. I couldn't find definitive proof though.

 

Again, why? Do you have access to a 12AT?

 

12at manifold yes but i dont know if it will clear the stock intake with the nikki

 

The S5 turbo is not a T3 pattern. It has a larger footprint. The S5 turbo mounting stud pattern measures approx 3.75" by 2.375"
The 12at definitely is a standard T3 pattern and the studs pattern measures approx 2.375" by 1.75"
I'll take a picture of both an S5 manifold and a 12at manifold side by side later and post it.

 

http://cgi.ebay.com/ebaymotors/ws/eB...ksid=p3907.m32

 

Yes, that's a factory 12at exhaust manifold. There aren't too many of those around these days.

 

Wow, really? I saw that auction too, but assumed that he just labeled the auction wrong, my bad.

 

I'll stand corrected as this is what I was told and thought is was odd at the time.

 

yes, it was a t3 flange

 

i missed out on the auction casue i didnt know for sure either. TRying to get on the phone with rob about a mani plus been talking to billy over at respeed for soem stuff too. My project is full steam ahead

 

nope, it wont clear the stock intake
unless you do alot of grinding and welding on the stock intake plus space out the turbo with a few t3 flanges... ive done it a few times

 

i just came up on a full genuine hks 12a turbo kit but it dident have the exhaust manifold so i have to have one made or something. cant wait to get that going.

:AA:

 

Here's a picture of the S5 manifold next to the stock 12at manifold, The S5 flange is considerably larger.

 

If you are using a Nikki, you can use one of the stock 3 barrel intakes from a 12at to mount it on and it will clear the turbo. With a little work, the Nikki 4 barrel carb will work on it pretty well.

 

finally, sombody that has correct information
now, the challenge is finding a genuine 12a turbo intake, i definatly dont have any

 

Do you have a genuine 12at distributor?

-billy