subaru engine converson 94 to 97

[fish1963]

hello everyone,

what are the pros and cons of using a 94gt engine in a 97gt subaru?

i think the 94 has vf13 vf14 turbo\'s and the 97 has vf18 vf19.

can i use the 97 ecu on the 94 motor if i change over the inlet manifold from the 97[yellow injectors],and the turbos,and orange air flow meter?

any thing else i would have to change?

just to clarify,

have bought a 97 gt wagon as a progect.

it has ej20r on the plate.

i was told it has had a motor change.

it is smoking badly and has a lot of fuel vapour out exgaust.

have done compression test and 120psi in all pots.

turbo on passengers side is still winding down after key is turned off.

have never heard one do this before.

so changed turbo with a known good one and it still does the same.

so guess it\'s ok.

both turbos are vf13 and vf14,which i have been told are off a 94gt,

thats why i\'m guessing it\'s an engine from a 94.

have yet to check fuel injection pressure,

as number three pot has excessive fuel

and plug is wet.

can someone tell me what are the correct size turbo\'s for a 97 ej20r?

engine has yellow injetors and orange airflow meter.

is there a number on block to show what year engine is?

car was going fine for previous owner,them started to blow smoke and use heaps of fuel.

[fish1963]

also the engine in this car has coil packs.

so what year did they go away from the top mount coils?

[fish1963]

what is the difference between these turbo\'s?

vf13 vf14,vf16 vf17,vf18 vf19?

[rex-leggy]

as far as im aware no legacy ever came with top mounted coil pack.

only v3 to v6 wrx/sti had them

[madmike]

Could be a leaky injector dude...

You say no3 is wet. Change it out clean the sparkplugs and do an oil change.

Chances are there could be a metric shitton of fuel in the oil causing blowby burn..

[Marky]

 rex-leggy said:

as far as im aware no legacy ever came with top mounted coil pack.

only v3 to v6 wrx/sti had them

^^ yeah that

youve got yourself someones abandoned project by the sounds of it?

Turbo number goes up with year of manufacture more or less, later models in legacies generally larger / better (not always, varies manual/auto) - do a search on here theres been a few swaps from early to late but its not huge gains as such

[DacerX]

If it\'s running yellows and orange afm then it\'s running a later model ecu as well or the old one? Didn\'t think the old ecu would like those 2 things...

[fish1963]

ok have made some progress.

problem was with number three cylinder.

tried 3 or 4 different coil packs and plugs.

have changed left fuel injectors cos number 3 was stuck open.

still only running on 3 cylinders.

pulled injector plugs off and no differance with number 3.

so traced wires back about 6 inches from plug and you guessed it a broken wire.

pulled the black plastic wire covering back and someone has cut wire.

looks like been done with a craft knife.

looks like it\'s been done on purpose as no other wires are cut.

so i\'m guessing that cut wire has stuck injector open.

fuel has filled cylinder and killed spark and what was\'nt going out exhaust was draining into sump oil and pushing the oil level up which was pressurising sump and pushing oil past rings.

drained sump,added new oil,

and car runs like a new one.

i think car was sabataged before i bought it.

[Marky]

Whaaaaat

whod you buy it from? thats insane

[madmike]

*madmike takes a bow*

[fish1963]

still have one small problem.

a subaru expert might know the answer?

the turbo on the passengers side was wirring when you rev car

and when you turn key off you could here it spinning down.

so changed turbo with the same known goody and it still wirrs?

[fish1963]

i know the young lad i bought car off told me he took car to a machanic and was told engine had a buggered piston or a cracked head.

someone cut that wire.

scary aye.

[Marky]

 fish1963 said:

still have one small problem.

a subaru expert might know the answer?

the turbo on the passengers side was wirring when you rev car

and when you turn key off you could here it spinning down.

so changed turbo with the same known goody and it still wirrs?

clogged oil feed or return to primary turbro?

just rando idea

[Guest]

Awesome logical approach good result. It had issues so he took it to the mech Im guessing?

[fish1963]

yep engine is all good now,no knocks or rattles,just a whinning primary turbo.

funny thing is,i changed it over and the replacement whines the same haha.