DoZZa

iTrader: (4)

Hello,

Next year I have plans for a 500bhp build. Ive been wanting to do it for some time and that time is pretty much now!

I would like to get some information from members who are running cars with this type of power, or thereabouts.

I am in two minds really, either a Type R or a JDM Hawkeye.

I had a Spec C hawk and really really wish I never sold it!

If you could copy and paste the bellow and fill in the blanks and reply to this thread I would be very grateful!

Cheers

TimH

iTrader: (11)

Model and Year: MY05 JDM twinscroll

Engine Type: 2.5 SCDB
Turbo & Exhaust: Litchfield LM480, Milltek 3" with centre-pipe sports cat
Induction: Custom hard pipe
Fuel System: Walbro lift pump, 044 main pump and engine bay swirl pot
Oil System: Standard

Transmission: Standard 6 speed DCCD-A
Clutch: Helix twin plate. Don't use this!

Suspension: AST adjustable
Brakes: OEM Brembo, PF disks front, Godspeed back, Orange stuff pads
Tyres: Dunlop something-or-others (standard hatch STi tyres on Hatch 18" wheels)

Who Built & Mapped?: Subaru4You. Mapped by JGM, then Bob Rawle, then me, then JGM, then a bit or Martyn Jeffery, and a bit of Ryan Griffiths and Pat Herborn thrown in

What Did it Cost?: Too much. At least £20k.

And finally, are you happy with it!: Yes

leecalcars

iTrader: (37)

Why what's wrong with the helix twin plate ??

the shreksta

iTrader: (20)

Has your engine been pinned/decked?

TimH

iTrader: (11)

The first one fitted kept grabbing and the bite point varied from time to time. It was fitted and refitted several times, including a trip to helix to have a look, but was never really right.

After 20k miles car got stuck in gear. Turned out that the input shaft had stripped splines. Fitter said it was the clutch. Helix said it was the fitting but couldn't advise what might have been done wrong. I paid for parts, fitter paid for labour and it's been OK-ish for 20k miles since...but the bite point still varies. Just seems too much hassle when other makes seem to go in without issue.

No. Originally ran ARP 11mm studs but it blew the Cometic head gasket after 10k miles. Then went for 14mm headstuds and Cosworth head gasket and no problems in the last 35k miles

If it does go again, I will go for the AS Performance CDB conversion, up the boost, and go for high 500's

Jay m A

iTrader: (2)

Model and Year: 95 STI RA

Engine Type: 2.1 Stroked CDB, v3 heads with uprated cams, valves etc
Turbo & Exhaust: MDX321T, Revolution
Induction: K+N cone, v1 manifold FMIC
Fuel System: Bosch 044, 740 injectors
Oil System: grpN baffled sump

Transmission:6 speed
Clutch:ACT extreme organic

Suspension:AST
Brakes:Ksport and OE newage rears
Tyres:

Who Built & Mapped?: Tim Farmer, JGM

What Did it Cost?: A lot of parts were reused from previous engine, or sourced 2nd hand - hard to say. Don't skimp on machining, Head Gaskets or headstuds is my advice

And finally, are you happy with it!: 508HP with 20% meth - it does the job - see my garage for full spec

MrNoisy

iTrader: (28)

473, so not quite 500, and I used meth to get into the high 400's so don't know if you're interested, but full spec including everything you've asked bar cost is available in my garage

What Did it Cost?: Frightening amounts, have probably spent in the region of £8-10k on the car since I originally bought her but some of that could have been saved doing things a particular way first time instead of going through combos trying to find what I was happy with

And finally, are you happy with it!: Fairly. I don't feel the car is lacking in power on the road, although some lower down torque might be nice - the cold start and idle has needed a tweak for a while and I never got to see Simon in the few weeks before he sadly passed away, but once the car's warmed up it annihilates most things on the road and is tremendous fun, even on the V-Power map (which IMHO gives you more usable power for a daily driver anyway).
The meth map gives you ludicrous pull from mid to high end from around 3rd gear on, but I rarely run meth just because, like I said, I feel the car drives very well without it.
HTH

G.Mac

iTrader: (2)

Model and Year: 2005 STI Type UK

Engine Type: 2.5 converted to CDB
Turbo & Exhaust: billet gt30, gt spec2 headers, scoobyclinic rotated downpipe mated to a meercat 3 inch decat system.
Induction: custom 4inch inner wing induction.
Fuel System: 300lph in tank lift pump, then onto a Steve whitson custom swirl pot with Bosch 044 pump. Agency power fuel rails, fuel lab fpr
Oil System: Zen performance dry sump system

Transmission: standard UK 6 speed
Clutch: exedy compe D twin plate.

Suspension: Verus coilovers and lots of whiteline stuff
Brakes: ap 6 pots with 350mm discs up front standard rears
Tyres: Michelin 245/40/18 pilot supersports running at 26psi on rays v speed alloys

Who Built & Mapped?: built by Steve whitson of SW Motorsport and Graeme at whiteline. Mapped by Russ at HQ Garage in dalgetty bay.

What Did it Cost?: unsure probably high teens.

And finally, are you happy with it!: reasonably, still a couple of niggles to sort, spins the wheels easily in 3rd in the wet.


Was gonna post pic but phone not playing ball with copying and pasting from photobucket

Blue by You

iTrader: (23)

Model and Year: 2005 STi

Engine Type: 2.0 CDB with darton sleeves and 79mm(?) crank, Carillo rods, Mahle slugs. JDM heads reconditioned by Finch Motorsport with standard valve train.
Turbo & Exhaust: MD321v billet, Milltek 3", RCM headers
Induction: HKS and Perrin FMIC
Fuel System: Zen 1000cc injectors with parallel feed and Walbro 450 pump
Oil System: Modified 10mm pump, under piston squirters, RCM group N sump, Mocal cooler, Zen modified catch can with RTS.

Transmission: stock 6 speed
Clutch: Exedy twin plate

Suspension: BCs and whiteline ARBs, ALK, roll centre adjustment
Brakes: K sport 6 pot and stock rears
Tyres: yep got some of those too, AD08s for the dry

Who Built & Mapped?: Paul & Ren @ Zen Performance. Made 502/520 with 20% methanol.

What Did it Cost?: Haven't a clue, and couldn't care less really. I would lose sleep if I added up the bills. Let's just say 'plenty'.

ECU is Syvecs with a Toucan telling me what's going on.

And finally, are you happy with it!: Is the Pope a catholic?


Very interesting thread. Reading what others get from similar builds.

Steve Whitehorn

iTrader: (13)

Here is an idea of my one.

Model and Year: 1998 Classic 4 door

Engine Type: High Compression CDB 2.1 - Reworked Sti V4 heads

Turbo & Exhaust: MD321T+ 3inch Cobra. GT spec 2 Exhaust Manifold Harvey Up pipe

Induction: RCM big cone with trumpet Perrin hose. FMIC

Fuel System: Fuel Labs FPR, Parallel fuel rails, Nismo 740 Injectors, Detuchwerks 330lph intank. Bosch 044 and swirl pot system in boot

Oil System: Cosworth Baffled sump, 11mm oil pump, Mocal 16 Row oil cooler, VTA Catch Can

Transmission: JDM Six Speed

Clutch: AP Racing

Suspension:
BC Coilovers
Whiteline ARB Front 22mm Adjustable
CDF ARB Rear 24mm Adjustable
CDF Racing Droplinks Rear
CDF Racing Droplinks Front
CDF Racing ALK Kit
STI Alloy Front Arms
Rota Grids 17x9" ET30
Front Strut Brace
Underbody H brace
Rear custom made brace

Brakes: K sport 8 pots on front. Brembos due to go on rear, Brake bias mod,
Pagid RS15.1 pads

Tyres: Toyo 888 or Federal RSR

Who Built & Mapped?: Build Dan Charman -Machine work SMG. Gearbox API

Mapping - Simon - Bob Rawle - Simon - Duncan

What Did it Cost?: Too much!

And finally, are you happy with it!: Yes

madscoob

iTrader: (3)

make screech a offer on his type r, that's well over 500. 535ish with 550torque
2.5 full cosworth cdb engine everything is perrin or cosworth on that car. look at paying 14-15k though it's worth that in bit's

MartynJ

I think you were a bit unlucky with the clutch Tim. We've fitted plenty on Subarus and Evos and been very happy with them.

Shaun

With a JDM Hawkeye @ 500bhp, see my project thread below in my sig.

It goes like stink. Is reliable and has been a cost effective conversion (OEM engine).

The best and most reliable performance setup I have owned to date.

the shreksta

iTrader: (20)

Model and Year: 2004 blobeye sti

Engine Type: zen built 2.5 scdb,2.0 sti avcs heads/mahle pistons/carrillo rods/acl bearings/cosworth head gaskets/11 arp head studs/perrin fmic/cosworth 12mm oil pump
Turbo & Exhaust: standard location garrett gt3071/hayward & scott de-cat downpipe/rcm headers/hks hi-flo exhaust system (all ceramic coated apart from hks)
Induction:aps inner wing induction kit
Fuel System: 650cc injectors/uprated fuel pump
Oil System:top mounted hyperflow oil cooler + oil catch can with return to sump

Transmission: standard uk 6-speed
Clutch:6 paddle exedy clutch

Suspension: bc coilovers/uprated bushes throughout the entire car inc diff/gearbox mounts etc
Brakes:ebc drilled/grooved discs all round with carbon lorraine pads
Tyres: toyo t1r's

Who Built & Mapped?: built and mapped @ zen performance in 2010

What Did it Cost?: i did not pay for the build but the bill for the engine/turbo/intercooler was over £12k

And finally, are you happy with it!: yes and no,the previous owner/myself and paul @ zen couldnt understand why the original owner who paid for it all didnt have the block pinned/decked considering money was no object and everything for the engine including the block had to be brand new from subaru where possible.so as a result its running just shy of 440 (its not 500 sorry) paul says i can take it to 475ish with bigger injectors but after that its in gods hands.timH above is running 524bhp on his 2.5 scdb and he says its fine and yet ive heard of some fail @ 450bhp.i may push for more power but highly unlikely at the minute,as a fast road car its awesome,the 2.5 combats any lag and as a result its goes like a scalded dog.

2 things i dislike are the paddle clutch and the noisy mahle pistons when cold

banny sti

iTrader: (68)

Only thing that puts me off a 2.5 (aside from the block issues as standard) is they die around 6.5k unless running a big turbo.

2.5 with non avcs sti 5 heads MD321T+ @1.8bar simtek



2.5 avcs heads MD321T+, 1.5 bar ecutek

APIDavid

iTrader: (4)

The problem with the variable bite point is over reaching the diaphragm of the clutch. It is possible to push it too far, so a stop is necessary under the pedal to prevent it going too far.

I firsty noticed this when a customer complained of exactly that; variable bite. I drove the car some distance to an appointmant and could find nothing wrong. But then all the traffic stopped suddenly and l had to do a crash stop. After that the clutch took about 10 miles to settle, the bite was all over the place . The difference was that in the crash stop l pushed the clutch pedal to the floor. Normally I just press enough to change gear.

So a stop was fabricated and the clutch pedal travel was limited to just enough with a bit to spare.

Never had a call from the customer ever again, he was happy.

Alan Jeffery

This is from our new T36 turbo. Forged 2.5, Perrin front mount, RCM headers.
Peak boost 1.5 bar, holding 1.3 bar.
Very respectable spool and power, and only £900 plus vat.

the shreksta

iTrader: (20)

Standard location turbo? Spool looks awesome

Alan Jeffery

Direct bolt on..

Berks-Jack

iTrader: (10)

Is that with Meth Alan? The spool up is incredible.

Fat Boy

Model and Year: P1 My2000

Engine Type: 2.35 (stroked EJ22T CBD), non AVCS but RCM Team Ice heads with titanium retainers, inconel valves, etc. RCM "race" cams (272). Motec M800
Turbo & Exhaust: GT35r billet mk3. Rotated RCM kit with Tial ext WG, RCM 3" with "quiet" centre section
Induction: RCM big alloy trumpet and K&N filter
Fuel System: In tank RCM upgrade pump (Zen mods to sock etc), 1000 (i think) injectors
Oil System: Baffled sump, RCM catch tank with return to sump, Mocal oil cooler.

Transmission: '04 JDM DCCD box , R180 plated rear diff and axle, carbon prop
Clutch: Exedy twin plate cerametallic

Suspension: Exe-tc coilovers, 24mm eibach arb F&R, solid drop links, proflex bushes
Brakes: prodrive alcon calipers, Zen sourced Performance Friction two piece rotors, Pagid pads, rear Brembo upgrade (painted and with prodrive logo to match fronts )
Tyres: 17" R888s, 18" Goodyears, 17" T1rs

Who Built & Mapped?: Zen and Zen

What Did it Cost?: Too much

And finally, are you happy with it! Yes. currently 560bhp on plain V powerwith AVCS Cosworth heads going on in the Spring.

DoZZa

iTrader: (4)

Thanks very much for this valued information.

It seems that there are several ways to achieve this power reliably.

I just need to decide the best route for me really.

Thanks again

MartynJ

No, straight Tesco 99 pump fuel only.

Ciaran

iTrader: (16)

Model and Year: P1 My2000

Engine Type: Steve whitson built 2.1 with standard P1 heads
Turbo & Exhaust: GT30 billet . Rotated RCM kit with Turbosmart EWG
Induction: RCM big alloy trumpet and K&N filter
Fuel System: In tank 400 l/hr walbro, boot mounted swirl pot with Bosch 044 transfer pump.
Oil System: Baffled sump, 12mm oil pump

Transmission: 5 speed straight cut PPG box, exedy twin plate

Suspension: Standard shocks/springs, whiteline anti roll bars, drop links, anti lift kit, rear lateral links, roll center kit.
Brakes: AP6 pots front and standard rear
Tyres: 18" standard wheels and eagle F1's

Who Built & Mapped?: Me and Andy forrest.

What Did it Cost?: £20k+

And finally, are you happy with it?
Actually no, it was too noisy and extreme and TBH 500bhp in a classic on the road is dangerous. Spun the wheels in 4th in the wet. Ended up selling off the 500bhp specific parts and it being down graded to 375ish as I can be reliable and more fun at this level

boosted

Hi, we spoke in Dundee at the SS meet.
Was impressed with your car but I sympathise with having something with less power that's more drivable. Are you keeping the straight cut dog box is has that gone too?

APIDavid

iTrader: (4)

Exactly so 500 and above is not a daily drive or even much fun in normal traffic.

One of our friend 'specialists ' had a guy that wanted 500 hp nothing would convince him that less would be adequate. So they stuck him in a demonstrator and frightened him daft foir 20 mins or so.

He recovered and said THAT IS EXACTLY WHAT I WANT !!

"OK sir, here's the dyno sheet, as you can see it has 401 hp "

Best advice try one before committing, it is not all about headline power and most will only last for 20,000 miles being used properly before they just wear out.

Cue for many posts from people with 500 plus and 60,000 miles to appear

David APi

Berks-Jack

iTrader: (10)

Very impressive

MrNoisy

iTrader: (28)

+1 that's all anyone really needs for a road car.
With that torque and early spool and on pump fuel it must be bonkers.

Rbon91

iTrader: (6)

Here's mine almost finished now ish... be March time before properly on the road etc.. going for a 500bhp+ build you really don't realise how much work is is involved and how the little bits add up big time

https://www.scoobynet.com/projects-40/972968-2005-wide-track-blob-sti-project.html

ryan

frayz

iTrader: (7)

Model and Year: 2002 Prodrive edition STI

Engine Type: Forged 2.5, pinned block, spec C heads with custom chambers
Turbo & Exhaust: GT35R, rotated Inconel by Thermal Logic, system by Simpson Race Exhausts
Induction: K&N by RCM on custom carbon trumpet
Fuel System: Walboro 255 lift, Bosch 413, ID1000
Oil System: Subaru 10mm by RCM

Transmission: Subaru 6MT
Clutch: Exedy Hyper Compe R

Suspension: KW Variant 3, whiteline etc etc
Brakes: AP racing 356mm 6 piston front, AP racing 335mm 4 piston rear, Pagid RS29 pads
Tyres: Michelin Pilot Super Sport

Who Built & Mapped?: Built by me, mapped by the late, great JGM (Power capped at 573bhp)

What Did it Cost?:Sh*tloads

And finally, are you happy with it!: I guess! I'm suck with it now. Lol