p1 engine into jap my93 wrx
 

just found out my engine is bugerd!! :mad:
but ive got the chance of having a brand new p1 engine fitted for £2000!
i know it would be a good idea to replace the cluth at the same time?
but is there any thing else i should be considering? i.e gear box? allso will my decat down pipe fit on to this new engine?
any info would be great!!!


allso how much should i expect to pay for for a new clutch to be fitted while the engine is out????

cheers jamie.

Wrong section mate.

But, who are the guys who are putting the p1 engine in your 93wrx? All the wiring loom will be different?

You will most likely need the ecu

You can buy a cheap wrx engine to drop in there. Do you know whats wrong with your one?

er...........click on it :rolleyes:

P1 into a 93 WRX will go eventually, with lots of mods and fiddling around. Better to go for an engine nearer your year model.

David API

there in the process now! there going to be building it around the original manafold! wot sort of performance gains should i expect???

The original 93 WRX manifold [inlet] will not fit a P1 engine, the studs are in a different position, with no metal available to be able to reposition. Changing the heads is an option but you'll need to be careful of piston crown and valve clearance to pistons.

Your original heads are hydraulic tappet and the P1 are shimmed, changing the cams from one to the other is not an option they will be wrong in either application.

Not an easy conversion whichever way you go.

David API

This project sounds dodgier the more you tell us about it. As David says, a phase 1 manifold won't fit phase 2 heads, and that's just the start of the incompatibilities. Who is doing the work?

Also, what, exactly, do you mean by a "brand new P1 engine"? Is this engine supposedly out of a brand new P1, has it been rebuilt, or what? And whose word are you taking regarding its spec?

These are questions you should really be putting to the garage carrying out the conversion, and preferably before either they start taking your car to bits, or especially before any money changes hands. If the job is being carried out by an experienced Subaru specialist and comes with a warranty, breathe a little easier, but if it's your local cut and shut merchant, or even worse, your mate's garage, it would be worth proceeding with caution.

You will not get any real power increase as the ECU is the limiting part!

the engine is going to be built up for me from scrath using p1 parts i,e turbo,heads e,t,c to make me a stronger faster (i hope) engine.
the works going to be carried out by a well established subaru dealer!
so ive left it in there capable hands.

thanks for all the info! as for the ECU would it be as simple as swapping mine for the p1
or would i have to get myn remapped! (still a scooby newbie when it comes to engines)
thanks jamie. :)

You don't seem to be taking any of it in.

Let's get this straight - you say this garage are going to build an engine using "P1" parts - including the turbo, but with your MY93 manifold, injectors and fuel system, but they're going to bung your existing ECU back in, unless you tell them otherwise? Even if they get the mechanical part of the build right, this package wouldn't work properly, thanks to the ECU and injectors not even remotely matching the cams and turbo you've got. Haven't they told you that this would be a problem?

No. The model year 1999 ECU won't fit into the wiring loom of your 1993 car.

Yes, you would most likely need a custom remap as it's very unlikely that the ScoobyECU boys, or indeed any other mapper, would have an off the shelf map for this particular engine/turbo combination to suit your ECU.

Yep, this shows. Which is why it's important that you start learning about them quick, just in case you end up being unwittingly shafted by the company doing this job.

thanx point taken! what would you suggest i could do with the same amount of money

:( im obviously being ill adviced by people i would of thought i could trust!

Well, steady on, you don't want to go too far down the road to paranoia either. It's possible they may be doing a proper job, it just sounds dodgy from what you have told us so far. As mentioned above, ask them straight questions, and see what sort of answer you get.

If it were my car, I'd want to know:
1) Where exactly the bits for this "P1 engine" have come from

2) Are all the bits brand new, and if not, how many miles will they have on them?

3) How are they going to cope with the physical mismatch between the phase 1 inlet manifold and the phase 2 heads, not to mention the differences in wiring?

4) How are they going to cope with the mismatch between the heads, cams, injectors, turbo and ECU, and how are they going to make sure the car runs within safe parameters after the job is complete?

5) What sort of a warranty are they going to give if this thing grenades itself two months down the line?

To be honest, if it were my car, I'd have got the engine rebuilt, or an as-near-to-identical replacement from the likes of APIDavid. This would have saved all the mucking about trying to make the newer engine fit into the older car, and wouldn't have been the bodge job this one is starting to sound like.

It may be that you're not quite describing the job to us correctly, in which case our fears may be unfounded, but either way you need to get a handle on exactly what you're paying for before they start taking your engine to pieces.

Might also be worth saying who they are, or even asking one of their people to register on here and talk it through. Could suggest to them that this would be the best way of calming your nerves! ;)