Subaru Legacy GT
6th Gear Member
Joined: Nov 2005
Posts: 6,828
From: Clarksville TN
RE: Subaru Legacy GT
ORIGINAL: 2000Si
It's basically an 06 WRX engine with a few extra pounds of boost, the next step for that car would be an STI turbo.
It's basically an 06 WRX engine with a few extra pounds of boost, the next step for that car would be an STI turbo.
Thread Starter
3rd Gear Member
Joined: May 2005
Posts: 632
From:
RE: Subaru Legacy GT
Um, that's not exactly true.
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
Guest
Posts: n/a
RE: Subaru Legacy GT
ORIGINAL: Driver72
Um, that's not exactly true.
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
Um, that's not exactly true.
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
6th Gear Member
Joined: Nov 2005
Posts: 6,828
From: Clarksville TN
RE: Subaru Legacy GT
ORIGINAL: 2000Si
I said basically, as in it's the same basic platform. EJ25T. I didn't say exactly the same.
ORIGINAL: Driver72
Um, that's not exactly true.
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
Um, that's not exactly true.
If you were going to say anything, you'd say the
06 WRX is basically the 05 Legacy GT engine.
BUT, that wouldn't be true either.
The 06 WRX however IS the Forester XT engine/turbo with
the Legacy GT transmission but with a 3.70:1 final drive vs. the LGT's 4.11:1
The Legacy GT engine is a derivative of the WRX STI engine...but there is some changes.
The Legacy GT engine uses different heads and cams and a slightly smaller turbo that makes
1.0 psi less boost. The LGT also has a 6500 rpm redline to the STI's 7000 rpm's.
The Forester XT's engine is similiar to both but also has different heads and and even smaller
turbo than the Legacy GT's.
The 06 WRX uses this version of the 2.5 F4
The 06 WRX and Forester XT's version allows for slightly higher compression ratio than the
Legacy GT, but again it has 11.6 psi of boost from the smaller turbo compared to the LGT's 13.5 psi.
The STI also uses the largest intercooler. The LGT uses a different one, as well as the WRX/FXT.
So even though the 2.5 F4 is essentially the same, there are difference between the Subaru models.
Only the 06 WRX and 05/06 Forester XT use essentially the exact same set up of the engine.
Why Subaru did this??
Beat the h3ll out of me. To me would seem MUCH easier and less expensive to have just two version:
The STI version and then the LGT version.
The 06 WRX and FXT would get the LGT's engine but "detuned" a bit (maybe with 1.5 psi less boost) in
order to keep the LGT and STI as exclusives.
What's really funny is that in performance testing of the Legacy GT, the 06 WRX, the Forester XT.
They all pretty much perform IDENTICALLY in the 1/4 mile now. So even though Subaru made all
these changes with 3 different versions of the 2.5 F4 engine, with the exception of the STI the other
models are pretty much equal in performance under 100 mph.
Above that speed, the Legacy GT pulls away a bit from the 06 WRX, and a bit more from the Forester XT.
The LGT has a slight horsepower advantage, better gearing for acceleration, and better aerodynamics over the 06 WRX.
But the 06 WRX weighs less, so the LGT's advantage is still there, but slight.
Same with the FXT, which is better geared (4.44:1) than the LGT for acceleration, but it's a brick in the aerodynamics arena.
Driver's race below 100 mph (but with equal driver's would give a slight advantage to the LGT)
then above 100 mph LGT > WRX = FXT
Thread Starter
3rd Gear Member
Joined: May 2005
Posts: 632
From:
RE: Subaru Legacy GT
ORIGINAL: 01SilverGT
I think he just wants everyone to think hes smarter than you. Thats what I think. LOL.
I think he just wants everyone to think hes smarter than you. Thats what I think. LOL.
I just figured if I was going to correct a statement, I might
as well be thorough.
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