GT(X/R) imported vs. building a BP
 

Which would be a better idea?

I have a 93' 323
I live in Dallas Tx, and I found a BP in a 93 Protege, that has 40k mi on it for around $350

Which would be a better buy?

Have a GT-X BPT paid for and shipped (2200+S&H this is in Austrailian money) from over seas and bolted in, or the BP from the local shop for 350, and use the rest to build it up.

any thoughts?

I saw the BPT for sale on this website:
http://www.jaustech.com.au/engines%20-%20mazda.htm

any ideas?

I think that I will end up building up the BP from the wrecked protege for 350, just b/c then I know what has been done to the engine and I know that the miles are more likely legit.

HOLY MOTHER OF GOD!!!!!! That site says they have the GTR in stock!!!

Man, I'll tell you this. If you want one engine that you can get and put SR20DETs and most every other 4 cyl out there to shame, get the GTR! It's the mother of all 4 cyls....factory rally engine (FULLY turbo prepped motor starting from sodium filled valves down to reinforced block). What more can you ask for?

http://www.xe.com/ucc/convert.cgi

It comes to about $3000 (USD) plus shipping and includes "engine, airflow meter, computer, engine wiring loom, relays & ancillaries" according to them. Couple that to a G series tranny with a lightened flywheel and the best clutch you can find and you will be set.

Anything else will cost you more in the final run and still not be equal to the GTR... (including a $350 BP which will need $1500 in just pistons and rods to take more than 6-7 psi boost, not to mention the $2000-2500 in turbo rest of the stuff.)

Ummmm, no... Braden had his BPT running about 25psi on the dyno, but the turbo maxed out it's efficiency way before that (somewhere around 18-22psi??). The internals on these engines are excellent. Some guy has 399whp in a EGT I think on stock internals.

I'd go with the BP. It has the MUCH higher flowing head design (gave braden like 10 or 20 whp just using the NA head), and is cheap as hell. I'd say build up the BP, but that's just me. You'd want to get the BP head anyway if you got the BPT.

But do whatcha want :D

There's no doubt that the GTR is an absolutely kickass motor, but I'd say go with the BP build-up too. Like Funk said, BP internals and head flow have been discussed here many, many times. And quite honestly, I'm not sure I'd want either GTX/GTR from the Aussie market anyway. Think about it ... those motors are in the 323 and are usually used as rally cars, or at the very least, as 4x4 vehicles in rough terrain. Also, it's a known fact that most cars there are not well looked after. I've read this many places and most Aussie's I've ever known or talked to readily admit this (not trying to offend). I'd much rather have one of these motors from the JDM.

what you should do is build up the bp, but i'd reccomend getting better pistons that can handle the boost and removing VICS from the intake manifold. the heads off of the n/a motors have bigger inlets, so youd get more power. i have a gtx engine and im just gonna swap the head to a n/a head.

The GTR IS a BP-T. So i don't know what your point is. And no, there is no 399whp EGT running stock BP internals. I will bet on that.

I'm not using stuff i've heard from a friend of my cousin's classmates gardner's physician's mechanic or something like that lol. :) I did the necessary research, found out prices of necessary upgrades and parts and did the math. That's why i said overall it's gonna cost more to have a BP to run high boost compared to a GTR (provided the GTR package can be obtained for under 4G).

Besides, BP heads are cheap (usually about $100 or so on ebay) and you can use the sodium filled valves, cams and springs from a GTR if you want the additional flow from the BP.

Anyways.... I'm just backing up my recommendation. :)

theres a 545hp EGT with a t67 turbo and nos. he's over at www.escortracing.com

http://www.protegeclub.com/forum/sho...5&pagenumber=1

Just backing up my recommendation... The quote of the thread is:

LoL funkdaddy, that's one way to reply to my response. (i think....) :)

I know there are some frekishly fast BP based cars. Why do you think I am so confident with my car? :D If you scroll back, you will see I was responding to funk's claim that there is an EGT with close to 400WHP using stock BP internals.

Thanks Jesse, that's what I meant, hehehe :D

one quick question.. isnt a sr20det the 240 engine... and ur sayin itll work out in a mazda... if so, i found a place that has them for 1699 +350 shipping(tranny n ecu comes w/it)... thatd be nutz in our little cars...

Holy crap that rocks.. What choices do we have for pistons ? I wouldn't mind running 10:1 with a GTX turbo setup :D

Stock 2k1 miata pistons right ?

Wow, I didn't know mine was only 8.8:1. I might put a turbo on it just out of boredom (I have lots of cars to drive, so I don't care if it blows up).

VJ-20 on a 220K mile engine anyone? :evilgrin:

What is the VICS?

hay d323

i live like 2 1/2 hours from dallas and im building a bp also.
let me know if you need any help

dont know if you know about this site, check it out
www.car-part.com

Pistons
 

8.8:1 = early proteges (through 93)
9.0:1 = 94 Proteges
9.5:1 = 94-97 Miatas
10.0:1 = 99-up Miatas

I know you can use all these pistons in the BP block, but are the rods the same length, or do they need to be used with specific ones (ie. GTX pistons must use GTX rods?)

Does anyone know what compression a '95 Escort GT BP would have?

is there any place that can help me out with understanding these damn compression numbers?

Why not? By the time I get all my parts together, I'll probably have ~175K on the clock :eek: !

VICS = mistake IMHO. you can easily gain 5 hp by removing it.

I'll probably do it this winter, timing belt/water pump change is coming up at 240K.

I agree with Jesse..... I dont think mazda made it that way for the sake of loosing hp.

And if I have it right I think it'll help your gas mileage a little bit too ;)

Why buy a GTX motor when u can get a Bp with 40k for 350 bucks?. The Bp is my choice. Jon

Did I read somewhere around here that it might be a good idea to remove the VICS manifold and replace it with the GTX manifold when going turbo?

Okay, this same question has been going over my mind a lot too.. either take a BP engine and build it up, or get a GT-X engine and put in my '90 4WD Pro, 5spd... It seems that going the way of the BP would be quite a bit cheaper, possibly, especially when I'm not looking to race my car but just be able to get off the line a lot quicker than the stock 103hp engine has. Would you all agree then? And in that case, all I need to do the swap is the BP engine, ECU, and trans?

Well how much power do u want?. The bp motor does not come with a turbo or manifold but does have a better flowing head. It is plenty strong enough to handle 200 plus whp. But the GTX comes with the turbo and manifold but has a restrictive head. I say if u can get a Bp with 40k buy that and a vj-20 turbo and manifold ..

what I want:
 

I want decent power, not really for drag racing or anything.

I am just tired of the 1.6 SOHC puttering around town. I want something that can at least stomp Civic LX/DX/EX/HX's. I see people rice those out and I can only hold with them. That annoys me.

In the future I plan to go with a moddest turbo system, nothing really all that huge.

One of the members here recently did a BP swap into his 323, and he's been having great luck beating civics.

If you're not looking for massive power, there is no reason to bother with the GTR BPT engine. Shit, for half the price you should be able to have a real quick NA BP turbo buildup.

hahahaha, get a gtx engine with ecu for $850 at www.blacktrax.net. cheap shit, thats what i did.

GTX
 

Dont you need to get a wiring harness extension since the wires come through on the other side on the GTX/R? Or is that only on the J-spec engines?

How hard was the gtx swap? For 850, thats about what I would spend fixing up the BP.

I know the NA head is less restrictive though, so it might be better to start with a NA and build it up, especially since I am in Texas, and the GTX is in california, or even further from other places.

When i emailed corksport they told me it would fit but it would be tight

Depends how much power u wanna push. If u buy a GTX motor and decide u want a bigger turbo u will need to buy a bigger turbo and get a manifold made. I myself only want around 300 hp so the GTR was a good find. And i got my motor shipped from CA to CT for 210 dollars :-)

How'd you get the GTX engine, limpgtx? Did you have to drive it down to them and they installed it? Or did you get them to ship one to you? If you can get the engine and ECU fo $850, that's not a bad deal at all. Now all I'd want would then be a better tranny. Would I be able to put one into my 4WD from an LX, or do I need one from another GTX?