Your trick up pipe is at the end of its efficiency range at 400bhp too.

 

should i stick with the venturi up-pipe that comes with the rcm headers then? i thought the trick up-pipes were for increased bhp applications

 

Shrek mate I would just leave as is until you have the funds to do exactly what you want to...If you go over to NASIOC and ask that question you will get different answers as the majority of Subarus out there are the 2.5 model and they modify their cars with the standard rods up to 500bhp and regularly on average at lease 450bhp,but when you talk to some of the members they have that attitude "if it blows up i will just build it again" Looool,but there Subaru scene is massive out there I have been there and seen it for myself, their's plenty of Scooby specialist with modified and o.e parts straight of the shelf.SJ.

 

There are a few different “trick” Uppipes

 

4 iirc. 2 2 bolt type - one aimed at standard-350hp and one for 350-400. And the same again in 3 bolt fitment.

 

Mate i was running 450bhp with the trick uppipe so its dependant on what set up you have and how much boost your running.SJ.

 

hi mate, I didn’t say a trick pipe won’t/can’t do over 400.

 

I know you didn't mate...I was just elaborating on your statement.SJ.

 

thought there were more than that.

 

i have the funds now to do the whole lot (and then some) as i was saving it to put towards an f10 m5 however thats not gonna happen due to the current state we are in and the un-certain financial future ahead of us but i do need to do something as the money is burning a hole in my pocket and im bored of 350bhp. the money has been sat there for nearly a year as we have just got married so i didnt want to touch it until after the wedding as the wedding costs never seemed to end,our honeymoon is paid for and there is money sat aside for our patio/shed etc so i feel i need to treat myself, you get me dont you- your a petrol head..........the need to modify never goes away so you have to curb your cravings (thats what i tell the wife anyway lol)

 

i will go with whatever alyn @ a.s performance suggests anyway buddy

 

Id imagine that would be the GT/ RCM one if you have both of them in hand to pick from anyway.


Keep us posted please though.

 

I thought the trick up pipe was designed to reduce lag,

 

Seriously considering getting the rods done now,looking around £3k for a rod-job assuming my crank/pistons are ok which I believe they are as I have no current issues.
would an md321v be a decent turbo for a 2.5 if the rods are done?

 

that 42+ would be epic

 

why not look at some of the forced performance turbos as they are built for the 2.5s and can work out cheaper than there uk equivalent ,, iv seen some very good results from them now

 

its sold buddy

 

I looked at them but couldn't quite work out which one I needed

 

When your car was last mapped did they say the turbo was of puff?

Cheers
fez

 

it was mapped in late 2016 when the engine was built (built/mapped at scoobyclinic) then i had a slight tweak in feb 2018 at the clinic as i had changed the entire exhaust - it made 349 bhp + 375ftlbs.
its been on the dyno @ thwaites for a health check in jan or feb this year and it pulled 354bhp and 400ftlbs.
there is more to be had from the turbo with increased boost of course.

i will put the latest graph up

 

would be this one
http://www.forcedperformance.net/fp-...ru-wrxsti.html

with internal waste gate

The FP 71HTA™ turbocharger for the Subaru WRX/STI features the 71HTA™ compressor section with a 58MM stock appearing compressor cover coupled to the 8cm2 turbine section. This combo produces the fastest spool and transient response possible of any of our Subaru based turbochargers. The FP 71HTA™ flows 51LB a minute which is capable of producing upwards of 425WHP.

 

If I was you I'd go down the route of returning it to standard as I think it would be something that a lot of people are looking for.
I.e. a forged 2.5 rebuilt by a reputable company in the colour 99% of new owners want.
get some decent gold oem rims,remove those wing stiffies and the car is then a very desirable motor that If kept in decent condition will only go up in value.

 

this is the most recent graph

 

if i was selling it then maybe but im keeping her and standard is boring. i have considered a wheel change to some gold ones but i detest subaru std wheels.

was in good condition until i hit bodger the badger. i didnt realise until mark @ thwaites showed me that my bumber is actually cracked, hopefully they can plasti-weld it @ the bodyshop before it gets sprayed

 

My 2.5 STi is fitted with a MDX555-450 it makes 422bhp/ 446ft/lbs. Would have made more but Bob Rawle who mapped it capped it as the injectors were just about maxed out. It’s only STi standard injectors. It pulls like a steam train from 3000rpm all the way too the redline..

my engine spec is

Mahle 2618 pistons
Manley rods
Nitriled crank
11mm ARP head bolts
Acl rod and main bearings
12mm oil pump
RCM water pump
RCM oil control kit twins roll sump
RCM oil catch can with return to sump

other parts that I’ve forgot

ive a graph but no way of adding it. I’ll email it if it’s of any interest to you

 

is it a hawk sti? who built the engine buddy?
will pm email address

 

Engine aside. What suspension and chassis setup do you have on the car?

 

yes it’s a Hawkeye. Not sure as it’s in the cars history. I purchased the car with the engine already built

 

i have ......

tein flex z coilovers
white line front and rear arb's
rear castor bush kit
bump steer kit
i believe it has aftermarket drop links or maybe new std ones were fitted i cannot remember
that lot was fitted and set up by simon @ chevron

i have yoko advan ad08r rubber

brakes are the std brembos which have all been rebuilt with new seals etc and powdercoated in porsche red
goodrich lines front and rear
dot 5.1 fluid
g-hook discs and pfz pads

the car is ready for more power buddy, i know the importance of making sure the whole car can handle it not just the engine.

 

thats good power for std injectors mate, must be maxed out surely?