HomeRegisterLog in
NESF- the award winning and largest club stand for the 3rd year running @ NBO- well done everyone that attended.
Latest topics
» My classic
350/350 on a Hawk STI EmptySat 11 Jan - 11:21 by keffer

» R.I.P Gipa
350/350 on a Hawk STI EmptyMon 9 Dec - 18:34 by maca

» Blobeye wrx
350/350 on a Hawk STI EmptySat 29 Apr - 22:21 by Mat1985

» Forum has gone down hill
350/350 on a Hawk STI EmptySat 25 Mar - 8:12 by wrx/uk/ppp

» I'm back...
350/350 on a Hawk STI EmptyTue 31 Jan - 21:44 by ConnorJ

» How many people are currently coming on here?
350/350 on a Hawk STI EmptySat 21 Jan - 15:04 by phil555

» Best place for mot
350/350 on a Hawk STI EmptyFri 13 Jan - 15:30 by maca

» another new/old member
350/350 on a Hawk STI EmptyFri 13 Jan - 15:23 by maca

» Pink injectors
350/350 on a Hawk STI EmptySun 16 Oct - 23:01 by EJ22 GAV

Search
 
 

Display results as :
 
Rechercher Advanced Search
April 2020
MonTueWedThuFriSatSun
  12345
6789101112
13141516171819
20212223242526
27282930   
CalendarCalendar
BBC News

 

 350/350 on a Hawk STI

Go down 
AuthorMessage
oHUTCHYo



Posts : 224
Join date : 2012-07-11
Age : 38
Location : Hartlepool

350/350 on a Hawk STI Empty
PostSubject: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:43

May have a Hawk STI Type UK lined up, its had serious money spent on handling/suspension. However its also running a 350/350 Powerstation remap. As I understand it, the 2.5 lumps are prone to piston failure on big numbers.

Think its a risky buy running such numbers? Dont think Id dare boot it in case it goes pop!?
Back to top Go down
discodaz

discodaz

Posts : 3926
Join date : 2011-10-13
Age : 44
Location : its better to burn out than to fade away....

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:46

Think that's the same setup mario is running on his hawk
Back to top Go down
https://www.facebook.com/darrenjayphotography
Guest
Guest



350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:48

oHUTCHYo wrote:
May have a Hawk STI Type UK lined up, its had serious money spent on handling/suspension. However its also running a 350/350 Powerstation remap. As I understand it, the 2.5 lumps are prone to piston failure on big numbers.

Think its a risky buy running such numbers? Dont think Id dare boot it in case it goes pop!?

That power/torque is spot on mate. The Hawks are fine up to 360/380 BHP -it's after that figure that it is recommended that you go down the forged route. It is absolutely fine the way it is.
Back to top Go down
oHUTCHYo



Posts : 224
Join date : 2012-07-11
Age : 38
Location : Hartlepool

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:49

Great stuff, cheers lads Very Happy
Back to top Go down
Bigclarky

Bigclarky

Posts : 815
Join date : 2011-07-11
Age : 35
Location : Chester le street

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:51

I thought the hawks were on the limits at 360-370?
Back to top Go down
Guest
Guest



350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:56

Bigclarky wrote:
I thought the hawks were on the limits at 360-370?

That's about right Clarky Wink
Back to top Go down
Bigclarky

Bigclarky

Posts : 815
Join date : 2011-07-11
Age : 35
Location : Chester le street

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 20:58

Am not to clued up on the 2.5's but do the wrx & sti have the same pistons/rods?
Back to top Go down
anthmac

anthmac

Posts : 1194
Join date : 2011-01-11
Age : 51
Location : Darlo

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:06

come on lads leave us hawks alone Sad they mighty fine up to 400bhp then you need to forge bits, andy forrest just mapped mine to 350 / 360 and fantastic, jonny gav is running his at 375 / 380 all fine and dandy to. but suppose if ya hammer them daily things could be diff.... fooking hope not.
Back to top Go down
Jonny Gav
Admin
Jonny Gav

Posts : 6837
Join date : 2010-03-12
Age : 49
Location : Durham

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:14

I would consider fitting forged pistons if I wanted to go over 380hp, up to that power they are fine so yours is spot on at 350hp.
Back to top Go down
Bigclarky

Bigclarky

Posts : 815
Join date : 2011-07-11
Age : 35
Location : Chester le street

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:25

Anyone shed a bit of light on my question?
Back to top Go down
Jonny Gav
Admin
Jonny Gav

Posts : 6837
Join date : 2010-03-12
Age : 49
Location : Durham

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:36

The WRX and STI 2.5 block/crank/rods are the same, the pistons are the same design but the WRX has slightly higher compression.
Back to top Go down
Bigclarky

Bigclarky

Posts : 815
Join date : 2011-07-11
Age : 35
Location : Chester le street

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:38

So are the crankshafts and blocks different aswell Jonny, am expecting the sti is semi and the wrx is open deck
Back to top Go down
Jonny Gav
Admin
Jonny Gav

Posts : 6837
Join date : 2010-03-12
Age : 49
Location : Durham

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 21:57

No, blocks are exactly the same, so are the crank and rods.
Back to top Go down
byers

byers

Posts : 3378
Join date : 2011-02-19
Age : 41
Location : Hpool

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 22:04

2.0 ltrs rule lol cheers

__________________________________________________
"Speed has never killed anyone; suddenly becoming stationary...that's what gets you." - Jeremy Clarkson
Back to top Go down
drew@drewsautos

drew@drewsautos

Posts : 2346
Join date : 2010-04-19
Location : All Major Debit & Credit Cards Now Accepted

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 22:05

wrx 2.5's are EJ255 Sti's are EJ257 difference is open deck Z25 n semi Z25C, i believe only sti's also have the extra breather on the crank case's which is used to balance the crank case and head pressures but i could be wrong on that, Ive a wrx hawk set and sti set of hatch casings in-front of me and they defiantly different
Back to top Go down
iddysti

iddysti

Posts : 1699
Join date : 2010-03-27
Age : 49
Location : Spennymanure

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 22:32

I was under the same impression as you drew the wrx was a ej255 and the sti was a ej257
Back to top Go down
Jonny Gav
Admin
Jonny Gav

Posts : 6837
Join date : 2010-03-12
Age : 49
Location : Durham

350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI EmptyWed 21 Nov - 23:18

Need to correct myself here, the hawkeye WRX EJ255 and STI EJ257 short motors are identical in the uk market, they are both semi closed with the same crank rods and pistons, the higher compression in the WRX comes from the head design.

Do not confuse these with USDM 255 and 257 motors as there are differences.
Back to top Go down
Sponsored content




350/350 on a Hawk STI Empty
PostSubject: Re: 350/350 on a Hawk STI   350/350 on a Hawk STI Empty

Back to top Go down
 
350/350 on a Hawk STI
Back to top 
Page 1 of 1
 Similar topics
-
» Century Hawk Pro for sale and lots and lots of spares
» Hebron Hawk Classic
» Minelab Golden Hawk
» Borealis Sea Hawk 1500m coming
» CROWN: Loyola Hawks Three-Peats as Halton Champs

Permissions in this forum:You cannot reply to topics in this forum
North East Subaru Forum :: General Chat-
Jump to: