Subaru Confirm Engine / Power Stats
10 September 2005, 07:59 AM
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Subaru Confirm Engine / Power Stats
Don't know if its already been listed as I've been off line for a while but I've heard from a trusted source that Subaru UK have confirmed the new STi/WRX 2006 models will be fitted with a 2.5ltr engine delivering 281 bhp / 230bhp respectively as standard. Now what would that be with PPP fitted 
Cheers, Kevin.
Cheers, Kevin.
10 September 2005, 08:50 AM
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10 September 2005, 08:57 AM
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Bigger isnt always better, you have more cc but thats about it, they do have a few weak spots, and ive been told that the way to go is actually the 2.2 rather than the 2.5 if you were looking to do anything in that area.
You have to remember that this engine is used in the US market for one major reason, the low grade fuel they use, it can handle it better and give similar power to a 2ltr, but they still suffer from head gasket failures, not common on the 2ltr, and if you look at what Iain Litchfield has done with the T25, only the bottom end is a 2.5, the rest is JDM 2ltr.
Tony
You have to remember that this engine is used in the US market for one major reason, the low grade fuel they use, it can handle it better and give similar power to a 2ltr, but they still suffer from head gasket failures, not common on the 2ltr, and if you look at what Iain Litchfield has done with the T25, only the bottom end is a 2.5, the rest is JDM 2ltr.
Tony
10 September 2005, 08:59 AM
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To say the 2.5 engine isn’t any good is a bit unfair. The engine does exactly what it is supposed to do; pass EuroIV emissions and produce reliable power at the level Subaru need. It does also make a nice refined and torquey engine and I think the WRX in particular will be a very nice car especially with PPP or similar fitted 
The new UK/Euro WRX and STI will sell well because it will be a really good car and suits many customers. The minority of enthusiasts who want something even more performance orientated have other Subaru options available
Only the 2.5 casing and bearings remain un-modified in the Type-25 now
Iain
The new UK/Euro WRX and STI will sell well because it will be a really good car and suits many customers. The minority of enthusiasts who want something even more performance orientated have other Subaru options available
Only the 2.5 casing and bearings remain un-modified in the Type-25 now
Iain
Last edited by LitchfieldImports; 10 September 2005 at 09:23 AM.
10 September 2005, 02:40 PM
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The 2.5 engine is very nice, I've done >4000miles with one in a USDM STi, the character is different from the 2.0, much more torquey and drivability is much improved. I've no doubt the JDM 2.0 is a more advanced 'performance oriented' unit, but the 2.5 gives the same result without having to be 'on it' quite so much, all IMHO.
Shame that emissions have strangled it a bit. The USDM 2.5 was giving 300hp 3 years ago, now the euro model can only manage 280.
And since when did the US get worse fuel?
Shame that emissions have strangled it a bit. The USDM 2.5 was giving 300hp 3 years ago, now the euro model can only manage 280.
And since when did the US get worse fuel?
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10 September 2005, 03:21 PM
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Originally Posted by Johnny C
The 2.5 engine is very nice, I've done >4000miles with one in a USDM STi, the character is different from the 2.0, much more torquey and drivability is much improved. I've no doubt the JDM 2.0 is a more advanced 'performance oriented' unit, but the 2.5 gives the same result without having to be 'on it' quite so much, all IMHO.
Shame that emissions have strangled it a bit. The USDM 2.5 was giving 300hp 3 years ago, now the euro model can only manage 280.
And since when did the US get worse fuel?
Shame that emissions have strangled it a bit. The USDM 2.5 was giving 300hp 3 years ago, now the euro model can only manage 280.
And since when did the US get worse fuel?
10 September 2005, 04:35 PM
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Is there any issues with the weight of the 2.5 compared to the 2.0 .... especially regarding the handling??
A few years ago (more than I care to remember!!) I drove 2 Alfa 75's (probably the last true Alfa) .... a 2ltr TS and 3ltr V6 .... in a straight line the bigger engine was awesome (about 50hp up) but it just didnt have the handling balance of the 2ltr and would have struggled to keep up with it on a twisty road!
A few years ago (more than I care to remember!!) I drove 2 Alfa 75's (probably the last true Alfa) .... a 2ltr TS and 3ltr V6 .... in a straight line the bigger engine was awesome (about 50hp up) but it just didnt have the handling balance of the 2ltr and would have struggled to keep up with it on a twisty road!
10 September 2005, 08:11 PM
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Who will want to buy a PPP upgrade when they buy the MY06, to find out a few months later that you get it free with the new cars???
Prodrive will wait a few months to ensure that early owners will want to upgrade before they give it away again!
F
Prodrive will wait a few months to ensure that early owners will want to upgrade before they give it away again!
F
Last edited by Floyd; 10 September 2005 at 08:14 PM.
10 September 2005, 08:36 PM
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And since when did the US get worse fuel?
Having just got back from Canada and spent quite a few vacations in the USA,most of their pump fuel is between 87 and low 90's octane,I think.I dont recall seeing anything higher.
Having just got back from Canada and spent quite a few vacations in the USA,most of their pump fuel is between 87 and low 90's octane,I think.I dont recall seeing anything higher.
11 September 2005, 12:44 AM
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The USA uses PON (Pump Octane Number) for its fuel grading, which is derived from RON+MON/2, we use just the RON value for our fuel grading.
All US states have at least 91PON which is the same as our 95RON, the majority sell 93PON which is the same as 97RON.
Using the PON method of octane values gives better quality control compared to plain RON octane values, so the USA actually has better fuel than the UK as an average.
All US states have at least 91PON which is the same as our 95RON, the majority sell 93PON which is the same as 97RON.
Using the PON method of octane values gives better quality control compared to plain RON octane values, so the USA actually has better fuel than the UK as an average.
Last edited by johnfelstead; 11 September 2005 at 12:46 AM.
11 September 2005, 09:20 AM
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Originally Posted by johnfelstead
The USA uses PON (Pump Octane Number) for its fuel grading, which is derived from RON+MON/2, we use just the RON value for our fuel grading.
All US states have at least 91PON which is the same as our 95RON, the majority sell 93PON which is the same as 97RON.
Using the PON method of octane values gives better quality control compared to plain RON octane values, so the USA actually has better fuel than the UK as an average.
All US states have at least 91PON which is the same as our 95RON, the majority sell 93PON which is the same as 97RON.
Using the PON method of octane values gives better quality control compared to plain RON octane values, so the USA actually has better fuel than the UK as an average.
Looks like i got confused between the PON and RON.
Tony
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