Do later model STi engines and drivelines fit GT Gen4 libs?

Posts specific to the 2.5 litre turbo engine

Do later model STi engines and drivelines fit GT Gen4 libs?

Postby triston » Tue Sep 06, 2016 3:58 pm

Hi All,

As some may know my engine has died, currently looking at my options, which include selling as is or fixing.

As a second hand liberty engine looks to be around 3-4k plus install. Does anyone know if the later model (2013-2016) model wrx sti engines fit our cars? Do their gearboxes fit (my gearbox has some issues too)?

I assume there is a tone of reasons why this wouldn't be cost effective. but just pondering options
User avatar
triston
 
Posts: 100
Joined: Tue Apr 26, 2011 6:34 pm
Location: Sydney
Car: 08 GT-B tuned by Sti

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby owen » Tue Sep 06, 2016 4:45 pm

Yes, later model STI running gear will fit if you transfer the ECU, loom, cluster, BIU etc over.

You'll also have DCCD and a front LSD. Do it :D
User avatar
owen
 
Posts: 1459
Joined: Tue Jan 10, 2012 9:21 pm
Location: Eastern Creek
Car: VAB STi // VARIS 86
Real name: Owen
Profile URL: viewtopic.php?f=10&t=17407

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby triston » Tue Sep 06, 2016 6:01 pm

owen wrote:Yes, later model STI running gear will fit if you transfer the ECU, loom, cluster, BIU etc over.

You'll also have DCCD and a front LSD. Do it :D


I would do it at the right cost. and if I could find the parts i.e need an sti Half cut I suppose then someone to do the install / conversion

DO you work at Garage88? what are my options?
User avatar
triston
 
Posts: 100
Joined: Tue Apr 26, 2011 6:34 pm
Location: Sydney
Car: 08 GT-B tuned by Sti

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby crazyricochet » Tue Sep 06, 2016 6:45 pm

I wouldn't really bother trying to sell the car with a dead engine as people will value it at pretty much nothing even though it's a nice tbsti :(
Unless you found the right buyer which could happen but is unlikely.

So that leaves fixing and flipping or fixing and keeping?

Fixing and keeping:
As Owen said, a 2008 onwards 6 Speed STI gearbox alone will fit right in with no modifications, the post face GTBs also use the same R180 torsen rear diff as the STIs.
The cost of investigation and repair of your transmission could possibly be more than a 2nd hand box that's in good working order. It's somewhat of a gamble either way unfortunately.

The DCCD and front LSD is definitely a nice bonus, I got a GR STI (08/09) gearbox with 33,000km installed in my car by god they are hard to track down
If you have the budget go crazy and spend even more money to upgrade your rear diff and install a DCCD controller (Otherwise the power split will stay fixed at 60% rear/40% front but it is not needed to function at all)

Regarding the engine, I'd be inclined to re use what you can do it properly, new 257 bottom end, build it, get it tuned it and go.

Car will :D :D :D :D for a long time - it's the current plan for my own car, my stock engine is still ticking along fine though fingers crossed

Fixing and flipping:
Leave gearbox alone, throw some money at it to install a 2nd hand engine then cut your losses and sell up.
crazyricochet
 
Posts: 149
Joined: Sun Mar 03, 2013 2:54 pm
Profile URL: viewtopic.php?f=10&t=30231

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby triston » Tue Sep 06, 2016 8:16 pm

crazyricochet wrote:Fixing and keeping:
As Owen said, a 2008 onwards 6 Speed STI gearbox alone will fit right in with no modifications, the post face GTBs also use the same R180 torsen rear diff as the STIs.
The cost of investigation and repair of your transmission could possibly be more than a 2nd hand box that's in good working order. It's somewhat of a gamble either way unfortunately.

The DCCD and front LSD is definitely a nice bonus, I got a GR STI (08/09) gearbox with 33,000km installed in my car by god they are hard to track down
If you have the budget go crazy and spend even more money to upgrade your rear diff and install a DCCD controller (Otherwise the power split will stay fixed at 60% rear/40% front but it is not needed to function at all)


Thanks crazyricochet, so you have a gearbox out of an STI and it is a direct fit without the need for anything else?

I'm considering the sti ej257 short block, but with the potential other engine issues, it could become to costly - Ej257 block installed + heads serviced is looking at $5,800
User avatar
triston
 
Posts: 100
Joined: Tue Apr 26, 2011 6:34 pm
Location: Sydney
Car: 08 GT-B tuned by Sti

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby ferret89 » Thu Sep 08, 2016 7:40 am

triston wrote:
crazyricochet wrote:Fixing and keeping:
As Owen said, a 2008 onwards 6 Speed STI gearbox alone will fit right in with no modifications, the post face GTBs also use the same R180 torsen rear diff as the STIs.
The cost of investigation and repair of your transmission could possibly be more than a 2nd hand box that's in good working order. It's somewhat of a gamble either way unfortunately.

The DCCD and front LSD is definitely a nice bonus, I got a GR STI (08/09) gearbox with 33,000km installed in my car by god they are hard to track down
If you have the budget go crazy and spend even more money to upgrade your rear diff and install a DCCD controller (Otherwise the power split will stay fixed at 60% rear/40% front but it is not needed to function at all)


Thanks crazyricochet, so you have a gearbox out of an STI and it is a direct fit without the need for anything else?

I'm considering the sti ej257 short block, but with the potential other engine issues, it could become to costly - Ej257 block installed + heads serviced is looking at $5,800


That's a fairly reasonable quote, its unfortunately the best option I think because no one wants a car with a rooted engine

I did that, had a EJ257 short block put in with my heads. Upgrade your head studs and oil pickup at the same time if you can afford the extra outlay
User avatar
ferret89
 
Posts: 1041
Joined: Sat Aug 11, 2012 5:23 pm
Location: Brisbane, QLD
Car: Liberty MY08 Tuned by STI
Real name: Daniel
Profile URL: viewtopic.php?f=10&t=28511

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby crazyricochet » Sat Sep 10, 2016 4:46 pm

That's correct ferret, and yes no mods required to fit the sti box
crazyricochet
 
Posts: 149
Joined: Sun Mar 03, 2013 2:54 pm
Profile URL: viewtopic.php?f=10&t=30231

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby Jake.h71 » Sat Oct 08, 2016 4:08 pm

I want a Tbsti with a blown engine! :D :P
Jake.h71
 
Posts: 155
Joined: Wed Apr 01, 2015 5:12 pm
Location: Melbourne Northern suburbs
Car: o4 liberty

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby HardwareBoB » Sat Nov 26, 2016 6:02 pm

The "just fix it" option is a new 257 short block, but you can fit anything with enough effort.
User avatar
HardwareBoB
 
Posts: 1579
Joined: Fri Sep 13, 2013 11:52 am
Location: Melbourne
Car: MY05 GT 5MT Wagon
Real name: Matt
Profile URL: viewtopic.php?f=10&t=27514

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby triston » Mon Dec 05, 2016 3:41 pm

[quote="crazyricochet"
Fixing and keeping:
As Owen said, a 2008 onwards 6 Speed STI gearbox alone will fit right in with no modifications, the post face GTBs also use the same R180 torsen rear diff as the STIs.
[/quote]

I know 2008 -2013 fit, but does the latest sti 6 speed 'plug & play' (minus dccd) i.e. 2014-2016?
User avatar
triston
 
Posts: 100
Joined: Tue Apr 26, 2011 6:34 pm
Location: Sydney
Car: 08 GT-B tuned by Sti

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby HardwareBoB » Mon Dec 05, 2016 3:48 pm

triston wrote:[quote="crazyricochet"
Fixing and keeping:
As Owen said, a 2008 onwards 6 Speed STI gearbox alone will fit right in with no modifications, the post face GTBs also use the same R180 torsen rear diff as the STIs.


I know 2008 -2013 fit, but does the latest sti 6 speed 'plug & play' (minus dccd) i.e. 2014-2016?[/quote]


No need to minus DCCD - Just get a controller, DCCD pro or map DCCD. The newer ones I believe haven't changed either (for STi)
User avatar
HardwareBoB
 
Posts: 1579
Joined: Fri Sep 13, 2013 11:52 am
Location: Melbourne
Car: MY05 GT 5MT Wagon
Real name: Matt
Profile URL: viewtopic.php?f=10&t=27514

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby bigBADbenny » Mon Dec 05, 2016 6:47 pm

My15+ sti has open front diff, DCCD centre diff, torsen rear...
https://practicalmotoring.com.au/car-ad ... in-detail/
Making the G3 sti box the more desirable choice for some as its' torsen front, DCCD centre, and 1.1 output ratio to suit the manual Postfl GTb torsen rear diff, or upgrade to the G3 sti plate rear diff, both 3.54 ratio as opposed to the G2 sti 3.9 rear diff...
If buying from Japan remember their sti 6mts are shorter ratio in 5th & 6th than adm STi or GTb...
Even more desirable might be the adm hawkeye g2 sti box...
All the fruit inc more rear biased DCCD, long ratio, iirc torsen front diff but you'll need a 3.9 diff, put 3.9 ring and pinion in your r180 torsen.
But really any Sti box would be FUN.
User avatar
bigBADbenny
 
Posts: 10420
Joined: Tue Oct 04, 2011 6:36 pm
Location: Collingwood, Melbourne
Car: MY07 GT-B 6MT OBP Wagon
Real name: Ben Richards
Profile URL: http://tinyurl.com/agvbzop

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby crazyricochet » Mon Dec 05, 2016 8:53 pm

Can confirm, is fun
crazyricochet
 
Posts: 149
Joined: Sun Mar 03, 2013 2:54 pm
Profile URL: viewtopic.php?f=10&t=30231

Re: Do later model STi engines and drivelines fit GT Gen4 li

Postby bigBADbenny » Tue Dec 06, 2016 4:28 am

Moar buttons to play with? :P
Hitting the gravel in your baby? :shock:
User avatar
bigBADbenny
 
Posts: 10420
Joined: Tue Oct 04, 2011 6:36 pm
Location: Collingwood, Melbourne
Car: MY07 GT-B 6MT OBP Wagon
Real name: Ben Richards
Profile URL: http://tinyurl.com/agvbzop


Return to 2.5T engine specific

Who is online

Users browsing this forum: No registered users and 8 guests