Skootin

Hi Everyone,

I'm new to the board, but starting to love these Mazda's. I just finsh my first project, which was a turbo Corolla, very sucessful, ran some low 14's with an auto tranny!

Anyway, I drove a few 88 323 GTX and 4dr's, loved them to death, but the rust on these cars in Canada are horrible, so...

I 'm buying a 1990-1994 323 Hatch and going to swap in the B6T out of the 88 year. For the first year, my budget will on permit a FMU for the management on boost, then moving to something full managment in the following year.

Wondering if anyone has done this, what type of boost can these engine handle, problems with the swap???

All comments would be greatly appreciated!

Sam

kcbhiw

Just curious, why don't you use the 1.8L Turbo instead (GTX/GTR)?

funkdaddysmack

While the BPT engine would be much better for overall output, it would be much more expensive to implement into a 323. You'd need a ton of parts from a Protege LX, or GTX, including things like tranny, ecu, clutch, flywheel, axles, front brakes, fuel pump, blah blah blah blah.... A properly tuned B6T could be good for around 200hp, plenty for a small car like the 323.

Skootin

My thoughts exactly. I live in Ottawa, Ontario and I have seen this nice white 323 hatch, he dropped in a B6T with a T3 on it, ran great times.

So what type of boost can this engine handle?

funkdaddysmack

From what I've read, you'd run into problems with the transmission before any internal issues. Don't expect to be running 15psi reliably. The tranny won't be able to take it. The protege lx tranny (G-series) is only good for about 300ft/lbs before it implodes upon itself, and the tranny from the 323 (F Series) is not nearly as strong. I'd say you'd be able to run 170-200hp pretty reliably from the B6T, but I'm just guessing.

mazdaspeedwest

Welcome Sam, nice to have you aboard.

while i really never read up much on the B6T, i'm pretty sure the stock boost is around 5-7psi. So i guess around 10-12psi may work great with all the particulars to control fuel and what not. Stock BP 1.8L N/A engines that have had the turbo and other parts added from the GTX runs 12psi easily. Which equals to about 225hp.

the B6T as it comes is quite conservative at only 130hp. With only a few tweeks 150-160hp is easily obtainable, or so i've been told. Still a solid engine and yes, a much easier swap than the BPT.

But hey as the saying goes, speed costs money....how fast do you want to go?

Skootin

Thanks for all the info guys! Nice to see a friendly board these days. I'll keep it in mind once I start running the big boost, I starting to look for this engine now, I did some reading on the BPT, yes, it kicks azz, but like everyone on here said, too much trouble to swap.

I'm on the hunt for a B6T, I'll keep ya posted on how she goes!

Thanks again everyone!

Sam

funkdaddysmack

Strangely enough you came in at the most controversial moment on this board, a lot of people are bickering back and forth. We're usually peaceful people though

You might find some helpful on www.mazda323performance.com

I used to go there quite a bit, but it's not nearly as active as this board. They might have some good B6T info there.

Skootin

You think this board controversil, check out http://www.redliners.ca

thats our local Ottawa community board for street racing and performance talk. We have a smack section which ain't for the faint at heart. Some stuff even evloves to fights on the street. It quite funny!

itr0754

I am also working on my 1994 323 hatch !! Instead of swapping the whole engine, I am just adding to the B6. So far, I've had the head ported, polished and a multi-angle valve job, MSD SCI ignition with a Blaster2 and MSD 8.5 wires, IHI RHB5 turbo, RX7 Turbo II Intercooler, unorthodox crank pulley, and a few other goodies... I am thinking about my pistons ... if I run 10-12psi will I need to swap my pistons ??

turboge

No need to swap the pistons they are decent. The rods from a GTX will work well, which RHB5 turbo, the VJ6?

5SpeedP5

just my little input here... dont forget about www.corksport.com they should be as of some help to you.

(im pretty stupid when it comes to these things, but now i can feel like im helpful)

itr0754

Thanks for the input turboge... I found a shop that will sell the GT-X pistons for little over $40 each ... However, I've not researched on the rods yet... I talked with one of the guys at Cork and they tell me the GT-X pistons should hold 15psi comfortably. He tells me he's seen them running as much as 18psi !!

Considering that the B6 block is basically the same GT-X block I don't think I need to upgrade more than pistons/rods.... Is there anything else I should be aware of ??

Thanks guys !!

PS: I am putting together a page with pictures and procedures of this project. I will post the URL shortly..

macdaddyslomo

speaking of the B6T,I was thinking of acquiring a Mercury Capri XR2....I drove one before and it was a fun car ,but I knew much less about cars at the time....what do you guys think?? good car??? what tranny is it running????

snart

My question is, are the internals the same on the BP and the GTX (other than lower compression pistons on the GTX) the same?? Are the rods the same size/strength???

Thanx peoples!!!