Taza's Forester engine options

At least that 2.5 litre badge on the rear end will read true now! Paul and I had a giggle at that one :poke:

Have fun with it, nothing like a bit of extra power!

Cheers

Bennie
 
G'day again Taz

I hear what you're saying about the SF being grossly underpowered. So was my Impreza, Roo1.

I always reckoned that the Impreza should have come standard with the EJ22 donk from day one.

I can see that some would call the 2.5L N/A SG underpowered, even after the introduction of the variable lift inlet valves in the MY06 onwards (actually, torque ... which merely demonstrates their ignorance ... ).

Having driven cars like E-Type Jags, 250LM & 275LM Ferraris (among many other similar cars), I can confirm that they are right - IF one expects a 2.5L N/A SG to perform like these cars. I don't. Also trust me that neither the Jags nor the Ferraris are very useful on a relatively smooth dirt road ... Don't even ask me what I think of Pontiac GTO 400s, Shelby Mustangs and SS Camaros ... :puke:... AND that's when they are going in straight lines, when possible ... :iconwink: :lol:

Do the SG Foresters have more than adequate torque for the kind of vehicle they are intended to be, particularly as regards the shape of their torque curve?
IMNSHO, the answer is yes.
 
El_Freddo said:
At least that 2.5 litre badge on the rear end will read true now! Paul and I had a giggle at that one :poke:

Have fun with it, nothing like a bit of extra power!
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Nothing like abit of extra wa*k factor :lol:

Ratbag said:
I can see that some would call the 2.5L N/A SG underpowered, even after the introduction of the variable lift inlet valves in the MY06 onwards (actually, torque ... which merely demonstrates their ignorance ... ).

Do the SG Foresters have more than adequate torque for the kind of vehicle they are intended to be, particularly as regards the shape of their torque curve?
IMNSHO, the answer is yes.
Click to expand...

I see what your saying.. I don't think they are under or over powered but adequate for the size car and for 99% of most peoples needs. As I've said my car isn't a sports car, it's my daily driver and weekend explorer. So fuel economy with adequate power is what I'm after and this is what is has in my opinion.
I believe once the tune is done(been reading into it more) that it should run just right and have enough power. Can't wait to get her run in so I can hit the dunes!
Done 350 of the 1000km so far :cool:
I did give it a decent boot load tonight just to see what it had and wow was I surprised, the 2.0l donk, even when healthy was just nothing on this thing. It pulls firm, strong and decently even without revving the guts out of it(which is what i want).

Over all very pleased but I'm not done yet and I haven't gotten the bill yet :confused: :surprised:
 
Good stuff Taza :lildevil:

Glad to hear you're running it in carefully...a few weeks of patience now will give you years of satisfied, hassle free driving to come :biggrin:

I'm sure the Haltech will be easy to wire in with help from the guys from work
 
For the standard daily driver, highway cruising even and some sand work the 2.5 has adequate grunt. Even without giving it more than 1/3rd throttle, the difference to the foz was like night and day compared to the old 2.0.
 
Which version of the EJ25 engine have you put into it, Taza?

Pre- or Post MY06?

Either will be a vast improvement on the 2.0L. The difference in torque is not enormous, but the range over which it delivers that torque is very much greater. The 2.0L torque curve was not all that dissimilar from the 1.8L in my Impreza - very "peaky" ... The 2.5L is much, much flatter, over a much broader rev range.
 
It's from a 2003 Outback now with 200km on the clock :D
I find that from 2000rpm to 4000rpm all has the same power and torque. 4000rpm+has more but you really don't have to rev it to that for any application really.
UNder 2000 is alright but a little more would be nice. I have found that it doesn't have that off idle flat spot that Rally and Phizinza talk about. ..
So far I'm getting 10l to the 100km with a stuffed O2 sensor.
 
Fantastic news taza :woohoo:
Great to hear that you're both enjoying & running it in properly too mate :quitar:


Regards
Mr Turbo
 
taza said:
So far I'm getting 10l to the 100km with a stuffed O2 sensor.
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Personally I'd be getting this replaced ASAP so that the engine isn't having to deal with the carbon that can occur from running rich - this stuff can be like sand paper to an engine, and I'd imagine it's especially not good for the run in period.

My thoughts on this anyway.

Cheers

Bennie
 
^ My thought too, Bennie.

But it sort of slipped out the back right hand corner of my mind for some reason :lol:.
 
Ratbag said:
^ My thought too, Bennie.

But it sort of slipped out the back right hand corner of my mind for some reason :lol:.
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Happens to the best of us mate!

Cheers

Bennie
 
^ Bloody CRAFT disease ... :lol:.

Picture this:

Whole lot of SOFA members doing a street protest, chanting ...


WHAT DO WE WANT?


....................................... BETTER MEMORY!


WHEN DO WE WANT IT?


....................................... WANT WHAT? ...


:poke:
 
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G'day again Taz

taza said:
It's from a 2003 Outback now with 200km on the clock :D
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Did that model have the variable valve lift?

The MY06 Fox onwards has this VVL technology. Very interesting concept that would have been the Holy Grail of valve train in my youth - Basically, a full race, long duration, high lift camshaft lobe on one inlet valve that only cuts in at high revs.
Up to around 4,000 revs, both cam followers for one of the inlet valves are following the same (low rev) cam lobe. At about 4,000 revs, one of them disconnects from the low lift short duration cam, and its "twin" then connects and follows the full race cam up to maximum revs

Apparently the later Fox XT had VVT, but not the VVL. Would be interesting to combine the two. Don't even know if its possible to do that.

I find that from 2000rpm to 4000rpm all has the same power and torque. 4000rpm+has more but you really don't have to rev it to that for any application really.
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That's my experience as well.

UNder 2000 is alright but a little more would be nice. I have found that it doesn't have that off idle flat spot that Rally and Phizinza talk about. ..
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Mine is pretty strong even at idling speed. With the car moving, it will pull OK from idling speed in third HR. Starts to come on strong from about 1200, then gets heavy at 1800 and up ... :lildevil:.

So far I'm getting 10l to the 100km with a stuffed O2 sensor.
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Geez, that's some improvement, specially with a brand new engine.

With Roo1, it didn't start to get completely predictable economy until I hit about the mid 70,000 kms mark ... :lol:.

Like I said before, I agree with Bennie. Get that dodgy O2 sensor fixed immediately. Bad for an engine, specially when running in!!
 
Thanks guys ..... Oxygen sensor ordered, will be here Friday. Got my computer piggyback today. Pics to come.

Will be installing over the weekend and the car does on the dyno next week. Should have around 1300km on it by then so it'll be safe.

I'm not sure on the VVL technology, I don't think so but my mechanic reckons this model Ej25 SOHC n/a is the most reliable so I'll take his word. I'm happy anyway, no complaints.
 
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It's still going good, I had the a/c on this morning, was pulling up a hill in 3rd at 60kmhr just easily. Never would of done that before. This was only because the window was fogged up. ...
Added another 100km to the run in today. ...

I now need a SF foz Na wiring diagram do I can install the piggyback
 
Wow your 2lt must of really been rooted if you couldnt do that before! nice to see its going well
 
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