Hi all
I have a standard uk wagon
I'm pleased with the car but could do with a little more power
Not loads been there just want to make it a bit more lively as its my daily
Cheers in advance

 

Sports cat down pipe.
Cat back exhaust.
Performance panel filter.
Ecutek remap.

Remap will be £550 and is the most important bit. The exhaust system can be had off here second hand for £300 and a panel filter is roughly £40.
Car will be transformed and make about 60 more horse power than you have now.

You could add an uprated fuel pump (£50) for piece of mind and an oil service with new plugs is a given.

 

de cat , 3inch straight through exhaust, h&s up pipe, green panel filter, sti SP ecu (ppp upgrade) 255 fp for safety, yellow injectors probally missed couple bits but yea, my 99 has this then a remap on top drives nice not much lag with the tdo4

 

de cat it just make sure you keep the cat for future mots!

 

Any reason why you changed your ecu for a ppp one and then had it remapped ??

The ops car will have 440's already. Yes a de-cat will unleash a tad more power but for most people a sports cat is a better bet and still a very good upgrade over the standard downpipe. A 2.5" system would also be sufficient at this level and probably cheaper to buy than a 3".

 

OP, if you use the search button you'll find lots of info. Here's another thread asking the same question...

https://www.scoobynet.com/scoobynet-...000-turbo.html

 

sorry the car came with ppp upgrade from new, then the mods were on it when i got it and the new remap,the ecu was originally fitted the op should have a AE801 E3? which is fully mappable, ive got a great big td06 20g ,a japspeen fmic,equall lengh headers, next to get is a fpr and a new maf then save up for fitting and remap , then save up for a built cdb when my block goes kaput

 

You'll want bigger injectors if you're using a 20G turbo and your standard motor wont last long either.

Ive heard the TD06 turbo's are notoriously laggy too.

 

i know ive read up on them, and yea was going to get a set of pinks,also was looking (well searching) as to run a newage sti top mount with the air box or run the fmic but use the standard airbox setup, seems like a lot of greif one way and the other will limit the turbo,the car i took the turbo off was a 99 uk 2000 too running a fmic at 330 with 100000 ish miles (was my friends we done pleanty of hard driving together) not trying to say the engine wont go bang , i was planning a cdb transplant in the future any way , i dont want to run max power ,the uk gearbox got chewed from what bhp i have (269) ive got a 752vbaaa gearbox so this should be able to take 330 safely

 

dont mean to sound cocky if any of it reads that way :P

 

spinus your always going to be chasing power with a subaru

 

Firstly, your pals car was running 330bhp with a front mount and 20G turbo ?? Why such a low figure ?

Gearbox wise, then752vbaaa is weaker than your 754 UK box.
You need to work out how much power you want and choose the smallest turbo capable of that. If I was you I'd fit a front mount or newage sti top mount and a 16G and run about 330bhp. When you start talking 20G's you WILL need a forged build or newage sti motor swap and at the least a late 754 box. You say CDB transfer but what exactly do you mean buddy as just bolting an early CDB in won't actually help you.

As I said, work out what you want from the car and then ask what exactly is required.

 

My future plan was to keep the car(shell) and get all that's needed engine/running gear loom and what ever else is needed from a v5/6 sti, I've only just started looking into my options everyone's gona say buy one already done,
I suppose it was only running that power due to safety reasons?my friend had the car about 9 month before writing it off, did originally want a td05 18g... But got a 06,
The gearbox was originally off a Blitzen legacy twin turbo then reconditioned put on a import Wrx 96 then their engine blew, had 1000 ish miles on it when I got it, I want no more than 350/350 , sort of over took this man's thread sorry mate

 

Td05 3" decat set of yellows decent panel filter walbro fuel pump or alike and a decent remap! Youl smile like you just bought it !

 

matty i though also using the bigger turbo running say 60% say the td05 will be 90%? there fore working the turbo harder?? am i stupid saying this lol

 

The larger you go then the more lag you will suffer. You should always use the smallest turbo capable of your power target. You want the turbo working at its full potential to ensure maximum responsiveness and allow the widest usable power band.

 

So I should scrap my plan and start again with a td05 18g , lol was looking for a td06 for months doh, can you list every thing I'd need to support the tdo5(incase I've missed/overlooked any thing) cheers pal

 

what are your power goals ??

You need to decide how far you want to go and how far you're willing to push a standard UK turbo motor.

 

id be happy with 330ish/330ish for now, ive also been told that sit 5/6 bottom end with my uk heads is a good move?, I cant see how when theyre the weak point is open deck, ive also rad on here a couple of people running over 340 on standard uk egine with vf35?how does the vf35 compare to the td series size wize whats the equivalent, cheers

 

If you are going to upgrade the engine then fitting an STI 5/6 bottom end isn't the way to go, its not much of an upgrade and certainly wouldn't future proof your car or allow you to run big power safely.
Its not because its an open deck block though. Open deck blocks are perfectly fine,( jura I believe ran his at close to 500bhp ), but its the bits inside that break. You also mentioed fitting a CDB, people think that if they have a closed deck block then its the strongest engine blah blah blah but its not. CDB only really become nessasary when going for big power. But yes, if you plan to build a fully forged engine then you may as well use a CDB as you'll be starting from scratch anyway.

Your UK engine should be fine to around 330bhp depending on its miles and general condition. Has it been serviced regulary ??
With regard to turbo, im just a fan of the TD series turbos. They are a strong old unit that produce good figures, the VF in my experience are a little more fragile.

If I was in your shoes id go down this route -

Andy Forrest TD05 16G turbo.
Newage STI top mount intercooler
440's (you'll probably want a FPR with these)
Full de-cat exhaust system
HRC 255 fuel pump
Decent panel filter
Some decent plugs (ngkprf7b)
AS performance matched up-pipe and ported exhaust manifold

You'll have a quick car buddy with great early spool and figures somewhere around 320 to 340. You also think about finding a STI 5/6 gearbox and rear diff. And if you really wanted to push your luck throw some meth in the tank.
You also need to think about upgrading things like brakes, suspension etc as these are very important in the making of a quick impreza.

 

Yea it's got full history up to 90ooo and yea it's a healthy engine I've been told,been every 3/4 thousand miles, I've had is serviced by a mate mechanic all filters fluids twice in 6 month , the breaks are gettin rebuilt New pots seals braided lines New fluid disks and pads, they're 4pots front 1 pot rear,looking into getting 2 pots on rear, I have all that you listed bar the turbo, fpr got equall headers would porting them make that much difference,I'm due a Cambelt in 2000 miles, was planning getting it all done in 1 go belt and turbo,as for the turbo it's going to have to be a 2nd hand one as am on a budget I have the engine the td06 came off would that maybe have forged internals how would I check if I opeNed the block up and sent you a pic of the pistols would you be able to tell cheers for your advice mate much appreciated

 

cheers for all the helpful replies
i work funny shifts so i log on quite randomly
ill go down the pipe filter fuel pump and remap.
i,ve gave it a full service plugs oil filters cam belt etc
so who do you lot recommend for mapping in the birmingham midlands area?
cheers again and i will try and use the search button more!

 

Second hand 16G's can be picked up pretty cheaply, you're looking at £150 for a decent one.
Remember you'll need one thats been front entry converted, pretty common so you shouldn't have any trouble finding one.

With regard to the other engine. Do you really want to go to the trouble of fitting an engine that you don't know the history of. Probably the best thing to do is drop it off at a reputable engine builder and let them check it over.

 

i don't mind spending a few £££ the andy forrest one 900 ish lol , what are the difference between the 16 18 20g , i know its the compressor wheelsize , but what are the diffrences lag/top end? cheers pal
the other engine il probally just take it apart out of intrest just to have a look then salvage any useable internals and bin the rest, also ive got a 752vbcaa box is this stronger than my vbaaa

 

I don't think his 16G's are that much, plus if you can find a beaten up old 16G for a few quid he'll do an exchange deal.

16G is the smallest and 20G is the biggest obviously. The bigger you go the more power you'll make but will also get a little more lag.

Maybe worth giving Andy a ring and just having a chat about what the turbos offer.
I ran one of his 20G's on my classic at 380 and then over 400 with meth. Great unit, pulled like a train and (from memory) was over a bar of boost by 3Krpm.

Box wise, the 752's really aint all that to be honest. Sell them both and buy a ty754vbaaa.
Do you have the correct matching diffs for the two boxes you mentiond ??

 

Box wise, the 752's really aint all that to be honest. Sell them both and buy a ty754vbaaa.
Do you have the correct matching diffs for the two boxes you mentiond ??[/quote]

ok.., and yea the aaa is on my road car and the caa is on my spare/breaker both with matched diffs

 

ok.., and yea the aaa is on my road car and the caa is on my spare/breaker both with matched diffs[/QUOTE]

Cool, don't mix the boxes and diffs up as the diff for the aaa is different to the one for the caa.

 

cheers for all the advice mate much appreciated il owe you a drink if we ever cross paths lol

 

You're only a stones throw from me, if you need a hand with anything just pop over.

 

lol small world where you