SteveMack89

I currently have 2 problems that i need yur info and help on............

Problem 1:

I currently have the following Engine upgrades:

VF34 Trubo
Pink Injectors
Full 3' Decat Cobra Sport Exhaust
K & N Typhoon Induction
Upgrated Clutch
255 pump
fuel regulator
NGK PFR 7B uprated spark plugs


The previous owner claimed 317bhp however no proof. There was some recipts for the turbo, induction etc from scooby clinic but no proof.

Anyways i am planning getting my car mapped by Andy Forrest to ensure the best quality map and power etc. What sort of power should i expect with the current mods?


Problem 2:

On Andy website the following mods are recommended for 360-390 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
K+N panel filter
EcuTek custom ECU calibration.
Twin boost set up for high/low power switchable in-car
550cc Multi Spray Injectors
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
STI TMIC from 01-06 STI including undertray
AFP 05-20G custom ported turbocharger modified to fit with TGV
NGK PFR 7B uprated spark plugs


I have the majority of these modification so would it be worth my while getting a TD05 20G, headers and STI intercooler?

The car is only used 4-5 months of the year with an annual millage of MAX 10K. The gear box feels very tight and i already have a 400bhp clutch.

The car i would only be used on the high boost setting maybe 20-40 time a year so whats the thoughts im needing help/adivice because i seriously tempted with 360bhp+ on the high boost then 300 on the low boost setting!!!!

Midlife......

iTrader: (2)

Looks like you should get about 330 ish with torque a little below that ........ On a cold day with your intercooler and non-ported headers

Andy could map it higher but you would likely smash the WRX5 speed box

I'd hunt out an STi intercooler and get Harvey to port and wrap the headers LOL

Shuan

Midlife......

iTrader: (2)

https://www.scoobynet.com/private-sa...er-y-pipe.html

SteveMack89

Already sent an enquiry!!! Great Minds Think alike!


Well how high do you think would be the limit with headers + uppipe and STi top mout intercooler.

Would be happy with around the 340-350bhp on high boost but i dont know if the turbo is capable?

As for the gearbox majority of the time it would be run on low boost so should hopefully keep it.


I just dont think scooby clinic have made the most at 317bhp to be honest.

Cheers for the reply tho!!!!

joz8968

iTrader: (13)

The VF34 and your current mods are capable of 340-350, very much so.

Just get AF to work his magic ECUTek-mapping your ECU, and you'll be sorted...

joz8968

iTrader: (13)

What I'm concerned about is the fact that at the mo you're way below the expected figure with 317... which implies that the previous owner has slapped on the VF34 and 550cc injectors WITHOUT a remap!

Have you been hooning in it in this state?

corradoboy

Then concentrate on making sure the handling and braking is up to that sort of power

SteveMack89

It capable of it With or Without The

Sti intercooler & Headers?


Just wasnt sure of the bhp range of the VF34.

SteveMack89

I have the recipt for the VF34, injectors, few other bits and 'remap' from scooby clinic so i am 100% sure its safe and sound!

Honestly the car runs like a dream just wish it was up around 350bhp!

joz8968

iTrader: (13)

It should still make those figure on std headers/uppipe. The VF34 is a quick spooler for its 350bhp or so. So, personally, I wouldn't bother with the extra expense/hassle of ported or suitable aftermarket headers/uppipe.

Also, the 05 WRX IC, I'm pretty certain, is capable of 350+. I think the STi version can do 400-450.

SteveMack89

Just noticed Previous post on handling:

Full Modification List:

Handling:


Sti Brembos - All Round
Eibach Pro Kit springs
Whiteline 22mm adjustable Rear Anti Roll bar and poly bushes
Whiteline 22mm adjustable Front Anti Roll bar and poly bushes
Whiteline Anti Lift Kit
4 Wheel laser Alignment

Exterior Mods

18' Rota Tarmac 2 GRA - Toyo Proxes tyres
Sti Fog Covers
Scoobyclinic stickers (Back door windows)
High level Sti spoiler

Interior

Kenwood touch screen (Fitted with TV module, bluetooth and ipod)
Upgraded top of the range speakers front and back
Additional Tweeters in front
Custom Boot build housing 2 12' subs ( Very neatly done)

Engine

As stated in first post (Currently)




All round nice car with a fortune spent.......... just need 340-350bhp to be a VERY nice car!

SteveMack89

Thanks joz8968

Will maybe try and contact Andy F to see what his thought on what it will make and supporting mods

All advice is welcome tho.

corradoboy

Should do OK with that handling kit. Maybe when the shocks show signs of age treat it to some Apex BC coilovers, and I'd consider a 24mm rear bar if your driving is smooth and progressive. Also, when the Toyo's need changing consider Vredestein Sessanta's, or if you want extreme, the RE070 Bridgestones :

SteveMack89

i have a full set of Tein coilovers and a full set of Gaz. I tryd out the tein set, but just a bit to firm.

Also have those Vredestein Sessanta's on before and they are a great all round tyre + nice tread pattern.

Basically handling issues have been upgraded just desperate to get the power!!!!

Also with the current map got 35.4 MPG on a 300mile trip at least some good has come from it!

joz8968

iTrader: (13)

Yes, always best to consult the mapper for his opinion. As he knows, for any given power goal/budget/his expertise, which supp mods that he can "make sing"?

SteveMack89

Also say Andy F can work some magic and achieve my desired 340-350bhp, what sort of torque figures should i be expecting?

joz8968

iTrader: (13)

Very close to the bhp figure on a 2.0L.

Expect around 95-100% of the bhp for the lb ft. So if it made 350bhp, you should get at least c.330lb ft.

bigsinky

joz

you and i know that if he gets 350/350 he will be running around like a dog with 2 dicks and a belly full of pish. there is no way on gods green earth this car will be on a low boost setting and it will be driven a warp speed even on his trip to tesco for the weekly shop. i would give him 6 months before he is looking 400/400.

As you know this will have repercussions for his 5 speed chocolate gearbox in the wrx and it will all end in tears when his gearbox calves itself on the A96 to Inverness.

Steve, apologies for talking about you in the 3rd person but it would be remiss of us not to warn you of the consequences of serious power with a 5 speed gearbox. I personally dont think it will be a question of "if" but "when" you strip a few cogs. I would start setting aside money for a full 6 speed drive train (half shafts, diffs, hubs). you know it makes sense

joz8968

iTrader: (13)

I'm just answering his DIRECT questions as best I know (I'm actually at work and can't really find time to add the caveats)

SteveMack89

The car will be on low boost the majority of the time for mpg, and to care for transmisson.

As for gearboxes i have 2 spare so i can afford to go through a few. But i doubt at 340bhp & 320lbs the gearbox would go to be honest as i dont drive the car that hard.

SteveMack89

One of those gearboxes is a wrx RA classic how strong are these? Is it worth a swap if the current one gives way?

trevsjwood

iTrader: (2)

the gearbox is not the issue, if you tracked the car then yes but for good impreza driving and I would include a few sessions at santa pod in that, then the newage 5 speed box and in particular the later ones are good for 400lbsft.
The WRX isn't as agressive in it's power delivery as an STI and that helps all around. I've thrown everything at my 03 WRX, forged engines, uprated clutches, 400lbft+ and the gearbox is still there.
Trev

SteveMack89

Well first my gf drives the car 80-90% of the 4months it's driven and honestly she is scared of 60mph! Lol

so i'm sure it will stand the power!

Also, anybody know if andy f is good at replying to emails........ Had no responce!

trevsjwood

iTrader: (2)

The only addition I'd make to your spec is an STI TMIC, scoop and undertray, the only limiting factor then will be your WRX spec and that limit on reliable rollers will be approx 340bhp. The VF34 or anything else in your spec would not be maxed by the WRX 2litre.
Trev

SteveMack89

Right well I'm going to add headers, up pipe and the Sri top mount intercooler anyway. That I have decided.

So what do you think it will make with that If
your saying the wrx intercooler is the limiting item?

f4la k

iTrader: (1)

Andy f is a hard man to get a hold of as hes out mappin 5 days out of 7. He will usually reply to your emails within a day or 2, but he is definetly worth the wait. He is usually booked about 4 weeks in advance unless he gets a cancelation.

trevsjwood

iTrader: (2)

It isn't that the WRX intercooler is so much a limiting factor, more that the STI set-up is much more efficient and better at keeping charge temps down.
Before I put in a 2.5 forged block, I'd done everything you have, plus a water/meth injection system and 10% meth in the V-power and never managed more than 340hp/330lbsft.
You should get to 340hp but anything else will be a bonus. It's quite common to up-grade the WRX with STI bolt-ons but in reality, I learned my WRX was always 20-30hp shy on power to a similer spec STI. I'm still glad I did what I did though.
Trev

SteveMack89

Oh well, was hoping the headers would allow that extra 10bhp.

but its becoming clear scooby clinic map wasnt near what it could of been huh?

trevsjwood

iTrader: (2)

headers will help mid-range torque more than top end at this level.
I would have thought Scooby clinic were on the ball mapping wise, I understood they use Pat Herborn and he's a top mapper.
Might be good to have a power run on the rollers to get some data and take it from there.
Trev

SteveMack89

only made 317bhp and when i contacted them they said that it was pritty much maxed out for a wrx.