P1 rebuild

[scoobyPPP]

Hi guys just a quick question, how reliable are P1's once they have had an engine rebuild? Cheers.

[allsop83]

Depends who built it......and to what specification in comparison to what power you are attempting to run....

Can you give us more information?

[scoobyPPP]

Not too sure of specs I am thinking purchasing one, I am guessin that a rebuilt engine that has been built to almost standard spec would be a safe option, what should I look out for?

[ScoobieWRX]

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

[JollyGrnMonster]

P1 map is the sti5 map with a prodrive added ectrinic speed controller, it is expecting 100ron fuel, then most owners used 97ron or worse added a decat and wondered why they went bang

[scoobyPPP]

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

[Vixpy1]

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

[scoobyPPP]

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

[Vixpy1]

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

First one will have an Sti 7 bottom end only, so Sti 6 heads and no AVCS. That bottom end is strong though. If its in good nick could be a good buy

Second one looks nice.

[scoobyPPP]

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

First one will have an Sti 7 bottom end only, so Sti 6 heads and no AVCS. That bottom end is strong though. If its in good nick could be a good buy

Second one looks nice.

How strong are the sti 6 internals, and what about the ecu (simtek) any good. I'm quite interested in that one because of the price, not bothered if it does not have full documents.

[ScoobieWRX]

I think Charlie and Simon are the ones to give best advice on the P1. I've no doubt Simon has mapped one or two in his time and equally Charlie's probably had a few on his rollers both standard and modified over time.

[scoobyPPP]

ScoobieWRX said:

I think Charlie and Simon are the ones to give best advice on the P1. I've no doubt Simon has mapped one or two in his time and equally Charlie's probably had a few on his rollers both standard and modified over time.

Cheers, I hope they reply, I am thinking of getting rid of my STI 05 plate, and get a P1, hope the plan works out.

[Vixpy1]

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

First one will have an Sti 7 bottom end only, so Sti 6 heads and no AVCS. That bottom end is strong though. If its in good nick could be a good buy

Second one looks nice.

How strong are the sti 6 internals, and what about the ecu (simtek) any good. I'm quite interested in that one because of the price, not bothered if it does not have full documents.

Sti 6 internals are good for 400bhp for a time, Sti7 internals will take that all day long, Simtek is good value for money ECU.

[scoobyPPP]

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

First one will have an Sti 7 bottom end only, so Sti 6 heads and no AVCS. That bottom end is strong though. If its in good nick could be a good buy

Second one looks nice.

How strong are the sti 6 internals, and what about the ecu (simtek) any good. I'm quite interested in that one because of the price, not bothered if it does not have full documents.

Sti 6 internals are good for 400bhp for a time, Sti7 internals will take that all day long, Simtek is good value for money ECU.

So am I right in thinking its had a rebuild if it has the bottom end of the Sti7. Also is the mileage too high?

[Herman Toothrot]

ScoobieWRX said:

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

A 330 at the last MSE Abingdon Trackday went pop, car was a 10 plate so no more than 5 months old. Serious amounts of oil being burnt at idle let alone if he prodded the accelerator. He was hoping it was the turbo but having had an MR2 Turbo that cracked a piston I thought not.

[Vixpy1]

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

Vixpy1 said:

scoobyPPP said:

ScoobieWRX said:

It's the standard mapping they came with that caused problems, the cars themselves are well enough built. There are plenty about still going strong that haven't been rebuilt however, i've no doubt the reason they haven't been rebuilt is because they have been remapped at some stage before the standard mapping could do any/much damage.

As soon as you get it have it remapped if it hasn't been already, rebuild or no rebuild. If you are buying one that needs or is likely to need a rebuild go for a nice strong forged bottom end to future proof your P&J.

It's funny that after all this time Subaru and Prodrive still haven't learned their lessons when mapping Subaru's with a one size fits all map because current generation STi and 330 Hatch's are also having piston problems just like the P1. I think there has been a recent MAP upgrade for 330's and any Prodrive remapped STi's plus i'm sure they are doing piston re-designs as well if it hasn't already happened.

Edited by ScoobieWRX on Wednesday 18th August 12:01

Yes I have heard of some new age scoobys having some trouble, I was thinking of something along these lines of this for a P1, what do you think?

http://www.pistonheads.com/sales/1740140.htm

The fact it only made 310 on a VF34 would suggest its not one of the better engines.

Hmmm, interesting, im hoping to spend around £7500, I have also seen this example

http://www.autotrader.co.uk/classified/advert/2010...

not too sure of the description if he means that it has a sti 7 engine or not, maybe you can shed some light on this,

or theres this one

http://www.pistonheads.com/sales/1755283.htm

First one will have an Sti 7 bottom end only, so Sti 6 heads and no AVCS. That bottom end is strong though. If its in good nick could be a good buy

Second one looks nice.

How strong are the sti 6 internals, and what about the ecu (simtek) any good. I'm quite interested in that one because of the price, not bothered if it does not have full documents.

Sti 6 internals are good for 400bhp for a time, Sti7 internals will take that all day long, Simtek is good value for money ECU.

So am I right in thinking its had a rebuild if it has the bottom end of the Sti7. Also is the mileage too high?

yes and no,not if you can get it for 5K

[ScoobieWRX]

If the short block is a standard STi7 then you can't really call it a rebuild, more a short block swap instead in which case it's maybe not so important how many miles the car has done but how many miles the short block has done. I presume it's not been rebuilt and still contains the original pistons & rings, bearings, crank, rods etc....

If that short block has had new pistons and all the rest of it etc..., then you can call it a rebuild. Good short block to start with though and as charlie says, very strong!!

I've got an STi8 long block in my WRX wagon and i can vouch for it's strength and durability. I'll probably get through a couple more 5spd gearboxes i think before the engine dies or i rebuild it.

[scoobyPPP]

Thanks for all the replies guys. I have had another idea, I was thinking of getting the cheapest P1 I can find and putting in a STI 7/8 engine, but I wouldnt know where to start. I have seen a few engines on ebay such as this:

http://cgi.ebay.co.uk/Impreza-STI-Ver-8-Engine-JDM...

or even

http://cgi.ebay.co.uk/SUBARU-IMPREZA-STI-HAWKEYE-2...

But like I said I would not know where to start, are these guys selling engines genuine and are the engines reliable is what I keep asking myself.

[ScoobieWRX]

If you go for a whole low mileage STi7 or 8 engine and you want to use the AVCS you'll have to rewire your cabin with the loom and ECU ideally from the engine donor car, and you'll have to make some changes to that loom to work your clocks and everything else.

You would be better off with just the short block, bolting your heads and other ancilliaries to that. If you can only get hold of a long block then you could always sell off the bits you don't use.

Edited by ScoobieWRX on Thursday 19th August 13:46