Rbon91

iTrader: (6)

My car is 2005 blob sti type UK
33k on clock
Going back for final map next week just wondering what's power limit?
Car spec is
MD321V
HDI hybrid gt2 fmic
650cc injectors
K&N typhoon cold air induction
Williams Motorsport headers
3inch japspeed decat
3inch blitz nur spec r cat back
Exedy organic clutch

Cheers Ryan

The Pink Ninja

iTrader: (23)

Tick, Tock..........

You`re gonna be pushing high 400`s ish with that turbo but you might need to do something with the injectors, You got a FPR fitted?

Highest one i knew of was Banny`s old one which he had around 523bhp iirc.

Rbon91

iTrader: (6)

Nope no fpr fitted... Anyone have one? They needed at that power?

sunnyjones003

iTrader: (12)

No mate im running around 400bhp and there is no point running a fpr.

peter zippy reid

iTrader: (25)

But his v will be closer to 500bhp

The Pink Ninja

iTrader: (23)

Depends on what injectors you are using and what car it is too, If you are on standard 3 bar fuel pressure on a newage sti you are one of the lucky ones if you actually hit 400bhp on 550cc pinks IMO.

Ryan,

650`s on standard fuel pressure are going to max out around 460-475 but if i`m right in thinking with another 0.5 bar of fuel pressure you should be able to cope with 510ish, I`m sure the MD321V a 500bhp rated turbo, Is it a billet too?

Just letting you know as come mapping day you dont want to be unprepared or if you are in doubt speak to your mapper beforehand, The choices would be either bigger injectors or an adjustable FPR to raise the fuel pressure a bit to squeeze more fuel through

Rbon91

iTrader: (6)

Yehh might get one .....
Yeh it's 500bhp rated turbo mate

jura11

iTrader: (7)

As above Ryan V should be making close to 500bhp if you have all supported mods.Buts still I would add bigger MAP sensor if your car will be mapped via SuperROM(CarBerry ROM)

Your injectors can be maxxed too at this level,FPR or bigger injectors will be needed if you will be looking for more power


Jura

Rbon91

iTrader: (6)

450-500 bhp enough for road IMHO..
Then it's handling aspects to work on

sunnyjones003

iTrader: (12)

ahh right sorry i didnt know you were aiming for around 500bhp, then yes i would buy one lol

TonyBurns

iTrader: (3)

At around the 450bhp mark you should be contemplating a full rebuild on a 2ltr or going for a 2.1, you will just end up with a laggy car otherwise which will ruin the drivability of the car.

**jay**

iTrader: (1)

Surely 500bhp on standard internals is going to end up with failing? im running 418 but thinking of taking it up a bit as its set low, maybe 450 max as dont want too kill it.

KK3960

iTrader: (21)

430/370 and no problems after some hardcore weekend driving for last 2 years, could do with some more torque though, a nice built 2.5 would do the trick

Rbon91

iTrader: (6)

Yehh looking for a fully forged engine or stroker built engine. To swap for my engine. Got someone who will buy my whole engine so looking for a ready built one to swap straight over

Wmscooby

iTrader: (24)

So what is a md321s billet rated to then guys?

craigyp

iTrader: (5)

running 430 on mine just bought a fuel lab fpr and some fuel rails and sending my md t to lateral to be billeted for more spool. then im not touching the engine no more!!!!!! HONEST :-/

Wmscooby

iTrader: (24)

Is yours an s then craigyp?

jura11

iTrader: (7)

Hi there

MD321S is somewhere between T and V,not sure,but on 2.0L you will find this turbo laggier than T,I've seen only this turbo on 2.5L where has making nice numbers

Not sure if is there possibility to have billet conversion

Jura

Wmscooby

iTrader: (24)

Hi Jura

Firstly thanks for the pillar pod its spot on

Have been told that the 321s i have is billet

Either was what sort of figures do you think i'll see with the right mods 740's aps fmic etc etc

Cheers
Mark

jura11

iTrader: (7)

Hi Mark

If you have billet S then should be better than non billet and you will gain on the spool up and on the top end too

With right mods I would expect above 450bhp(470 bhp should be possible on the V-power)


Jura

Wmscooby

iTrader: (24)

Thanks Jura.

If I get anywhere near 450 ill be very happy