Which is the strongest most reliable subaru engine? I'm looking at buying a full car with a 2.1, 2.2 or 2.35 litre engine, in wondering when built up which is besr and reasons why. Failing that, what can a built 2.5 produce?

I'm sure this has been done before but I can't find it, when mated with a gt35 turbo which would people recommend.

Many thanks

 

2.35, had one with a billet GT35R was a beast

 

What about an ej20 with a 2.2 stroker kit

 

That's a 2.1, called a 2.2 because it sounds nice and fancy. However with a billet GT30 with a 0.62 makes an excellent road car will be a little laggy with a GT35

 

I'd like 550-600bhp

 

The below got me 666bhp on 15% meth

Engine & Transmission

EJ22T block
EJ257 79mm nitrided crank
Wiseco stroker pistons
Crower stroker rods
ACL main and big end bearings
Cosworth 12mm high flow oil pump
14mm head stud conversion
avcs heads ported and knife edge polished
1mm oversize Cosworth Inlet and Exhaust valves
supertech titanium retainers
supertech double valve springs
supertech valve seats
272 inlet and exhaust cams
Adjustable exhaust cam pulleys
Kevlar timing belt
cosworth billet timing belt guide
Cosworth high flow inlet manifold
bespoke top feed fuel rails
Injector dynamics 2000cc Injectors
Aeromotive A1000 fuel pump
fuelab -10 fuel filter
SM swirl pot
walbro 255lph lift pump
braided clutch line
Exedy hyper twin plate clutch
RCM 100mm trumpet
RCM 260mm Induction cone
Inner wing induction box with 76mm feed to foglight
Beatrush gearbox stabiliser
STi engine mounts
GT spec headers
3.5" rotated down pipe
44mm tial external wastegate
Roger clark return to sump catch can
Braided teflon fuel hoses
Scoobyclinic Garrett Billet GT35R
Bespoke braided engine loom
Roger clark lightened pulleys
DEI Titanium turbo blanket
Omni power 4bar map sensor
twin scroll baffled sump
Syvecs S6 PNP ecu with 8 maps, Anti lag, Launch control. flat foot shifting and nos control
3.5" veilside titanium exhaust
wideband lambda fuelling control
NGK Racing 8 spark plugs
New age coil pack conversion
NGK racing 8 spark plugs
Fuelab 3 port Fuel pressure regulator
Hyperflow monster intercooler

 

That sounds wicked, any videos??

 

This is at low boost 530bhp due to track size

 

whoops, around you go hahahaha

 

That sounds awesome banny

 

Ignore this.
Answerd my own question!!

 

At that point at curbs it was on a standard twin scroll sump, the baffled one came later

 

Sounds wicked, for the price of building a 2.1 or 2.35 I can buy a full car haha

 

hahaha, properly built they aint cheap

 

I meant full car with a 2.1 engine included haha

 

hahaha, fair doos. still stand's though. You never get yer money back from modding.

4k's worth of engine build will never add 4k to the car

 

Nope exactly, can get a brand new built 2.1 forged for £3,500

 

sounds too cheap for my liking

 

WMS can build a 2.1 short block for around that sort of price.

 

thats pretty cheap

 

yer obviously that's just a supplied built short block. The heads etc will need skimming and the block fitted, so when you start adding up cost of head bolts, skimming, fitting the engine etc it adds up

 

Ahhh, i was talking installed, not just supplied

 

I know where there is a brand new fully built CDB 2.1 with baffle plate cossie gaskets and avcs heads, price is under 3k

 

jebus thats cheap, snap it up mate

 

Going to stick with my destroked 2.35 for the moment in a pinned 2.5 block (trying something different), if it dies then this will be my next optiong

 

might be worth having as a spare anyway at that price lol

 

I've looked into a lined 2.5 for better torque and spool anyone had any problems?

 

Cheers Banny

 

Most engine builders will not reliner a 2.5 block due to the lack of meat in the block. A standard 2.5 block on standard bores with an AS Performance Closed Deck insert will be a good option for most applications.

 

I've used the ASPerformance 2.5 closed deck block and it's awesome.

the first time i used one i had internals capable of 400 bhp however got a bit power hungry and took it to 480bhp and 507ftlb torque with 20 percent meth on a sc46 turbo and pistons failed.

i did 12000 miles on the block and no heat issues or liners splitting etc.
i'm currently having one built by ASPerformance.

2.5 closed deck block
79mm nitrided crank
corrillo rods
mahle race pistons
acl bearings
big port spec c heads(further porting carried out)
supertech valves springs retainer
bronze valve guides
ASP 14mm headstuds
GSC 272 cams
RCM head gaskets
rcm vernier pulleys
rcm 11mm oil pump
owens motorsport HTA GT3582 turbo with TIAL V-Band
deatschwerks 1300cc injectors
AEM meth injection kit
Syvecs ECU with toucan and most optional sensors available
Swirl pot
zen performance dry sump kit
simpsons exhaust custom 3 inch straight through
spec c rotated inlet
perrin FMIC
RCM large cone filter
aeromotive a1000 fuel pump
ASP billet fuel rails
and alot more.

and i'm pretty confident the 2.5 CDB will see 650+ bhp with out any issue.