more head swap scoop from down under
Posted: Fri Apr 06, 2001 12:59 am
Hi Larry.
Thanks for your reply.
I am assuming that the 2.2L engine that you have fitted to your earlier
model Legacy is very similar to the naturally aspirated engine of the same
size that we had fitted as another option to a lower spec model
Legacy/Liberty of the same vintage (2212cc Quad Cam 16V).
If this is the case, then you can all stop arguing over which heads are
better. It is all irrelevant when you can get so much better improvements
(spending less money in the process) from looking at the "bolt on items".
By this I mean exhaust, intake, intercooler and ECU. These are the primary
things to look at as they all are far more restrictive than the heads will
ever be.
Get these sorted and you will be well on your way to 280-300hp, depending on
the strength of your versions engine internals. First up is DEFINITELY an
intercooler though!
I hope this helps and look forward to your reply.
Kind Regards
Ben
MRT Performance "We Rally, You Win !"
==================== my reply to Bens' reply follows==================
Ben my friend, thank you so much for sticking with us (BC-BF LegacyWorks
list) on this head swap subject. You're giving us good feedback and info.
But I gotta square you on the deal with our USA spec Turbo Legacy, cause
you're still missing something. You still think we're talking about an
engine swap. Check this out Ben. From 1991 thru 1994, there was a true
Subaru factory turbo option package for the Legacy sold in the US as the
Legacy "Sport Sedan" and the Legacy "Touring Wagon LE" (Limited Edition).
There were about 1400 sold for the US market over the entire four year US
production run. Most of the Sport Sedans had a special beefier 5 speed
manual tranny and most of the Touring Wagons had the bigger stronger 4 speed
automatic used in the SVX with a stand alone transmission control unit (TCU)
which is independent of the ECU. The BC-BF engine was not the normally
aspirated 2.2 engine with a turbo hung on the outside. It was a separate
uniquely designed engine intended for turbo application from the ground up.
It corresponds to the 2.0 Liberty turbo engine you had during the same
period, only 10% larger, and I believe was the same basic engine used in the
2.2 liter 22B, complete with closed deck, fancy pistons, oil squirters,
pressurized oil and water lines to turbo, bigger radiator, special thermal
cycle turbo water cooling, the whole shit. I think the confusion arises from
the fact that you guys down under also had a 2.2 engine during the same time
but none were factory turbocharged, only the 2.0 was. It has a different
ECU, suspension, exhaust, brakes, transmission, tire size, engine internals,
etc. It is a different animal than the 2.2 normally aspirated car, it is a
complete factory turbo automobile. It was the engine and car combo used by
Chad DeMarco in his successful World Rally Championship campaign during the
early 90's. However, the car as sold in the US did not have an intercooler.
The car you call the "early" Liberty, with the 2.0 turbo had the air-to-water
intercooler I want, and yes the serious Turbo Legacy owners here adapt
whatever intercooler they can make work, both air-to-air or air-to-water and
over the engine or in front of the engine. But the reason the head swap
topic is hot right now is because some of these guys have already done most
of the bolt on stuff and want more. Right now the brand spanking new US
version 2.0 liter WRX turbo (finally) is the new king of the hill and the
small exclusive 2.2 Turbo Legacy crowd is curious about head swapping either
the heads used in the newer 2.5 Imprezzas, Outbacks, and Legacys or the new
(to our US market) 2.0 WRX which, by the way has the top mounted cooler. We
aren't talking about swapping engines because we (most of us) think our
Legacy factory turbo engine is still the biggest and best. A couple of
knowledgeable sources have even said the heads on the 2.2 Turbo engine are
still the best or have the best potential. Log onto
http://groups.yahoo.com/group/BC-BFLegacyWorks, join up, and check us out.
Thanx again. Larry Witherspoon
To unsubscribe from this group, send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com
Thanks for your reply.
I am assuming that the 2.2L engine that you have fitted to your earlier
model Legacy is very similar to the naturally aspirated engine of the same
size that we had fitted as another option to a lower spec model
Legacy/Liberty of the same vintage (2212cc Quad Cam 16V).
If this is the case, then you can all stop arguing over which heads are
better. It is all irrelevant when you can get so much better improvements
(spending less money in the process) from looking at the "bolt on items".
By this I mean exhaust, intake, intercooler and ECU. These are the primary
things to look at as they all are far more restrictive than the heads will
ever be.
Get these sorted and you will be well on your way to 280-300hp, depending on
the strength of your versions engine internals. First up is DEFINITELY an
intercooler though!
I hope this helps and look forward to your reply.
Kind Regards
Ben
MRT Performance "We Rally, You Win !"
==================== my reply to Bens' reply follows==================
Ben my friend, thank you so much for sticking with us (BC-BF LegacyWorks
list) on this head swap subject. You're giving us good feedback and info.
But I gotta square you on the deal with our USA spec Turbo Legacy, cause
you're still missing something. You still think we're talking about an
engine swap. Check this out Ben. From 1991 thru 1994, there was a true
Subaru factory turbo option package for the Legacy sold in the US as the
Legacy "Sport Sedan" and the Legacy "Touring Wagon LE" (Limited Edition).
There were about 1400 sold for the US market over the entire four year US
production run. Most of the Sport Sedans had a special beefier 5 speed
manual tranny and most of the Touring Wagons had the bigger stronger 4 speed
automatic used in the SVX with a stand alone transmission control unit (TCU)
which is independent of the ECU. The BC-BF engine was not the normally
aspirated 2.2 engine with a turbo hung on the outside. It was a separate
uniquely designed engine intended for turbo application from the ground up.
It corresponds to the 2.0 Liberty turbo engine you had during the same
period, only 10% larger, and I believe was the same basic engine used in the
2.2 liter 22B, complete with closed deck, fancy pistons, oil squirters,
pressurized oil and water lines to turbo, bigger radiator, special thermal
cycle turbo water cooling, the whole shit. I think the confusion arises from
the fact that you guys down under also had a 2.2 engine during the same time
but none were factory turbocharged, only the 2.0 was. It has a different
ECU, suspension, exhaust, brakes, transmission, tire size, engine internals,
etc. It is a different animal than the 2.2 normally aspirated car, it is a
complete factory turbo automobile. It was the engine and car combo used by
Chad DeMarco in his successful World Rally Championship campaign during the
early 90's. However, the car as sold in the US did not have an intercooler.
The car you call the "early" Liberty, with the 2.0 turbo had the air-to-water
intercooler I want, and yes the serious Turbo Legacy owners here adapt
whatever intercooler they can make work, both air-to-air or air-to-water and
over the engine or in front of the engine. But the reason the head swap
topic is hot right now is because some of these guys have already done most
of the bolt on stuff and want more. Right now the brand spanking new US
version 2.0 liter WRX turbo (finally) is the new king of the hill and the
small exclusive 2.2 Turbo Legacy crowd is curious about head swapping either
the heads used in the newer 2.5 Imprezzas, Outbacks, and Legacys or the new
(to our US market) 2.0 WRX which, by the way has the top mounted cooler. We
aren't talking about swapping engines because we (most of us) think our
Legacy factory turbo engine is still the biggest and best. A couple of
knowledgeable sources have even said the heads on the 2.2 Turbo engine are
still the best or have the best potential. Log onto
http://groups.yahoo.com/group/BC-BFLegacyWorks, join up, and check us out.
Thanx again. Larry Witherspoon
To unsubscribe from this group, send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com
