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Old 11 January 2011, 08:17 AM
  #31  
Butty
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Originally Posted by TonyBurns
the only other main difference is that the 2007 had different head gaskets
Tony
Are you sure? I can't see a new part number issued for them.

Originally Posted by New_scooby_04
Head gaskets on the Hawkeye being a weak spot is a bit of an SN myth AFAIK. As I understand it, the pistons on a hawk only good for circa 1.3 bar
Ns04
Why is it a myth? Rather than an HG problem, I understood it to be a head problem where they lift on the exhaust side and the HG seal is lost.
Old 11 January 2011, 08:33 AM
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Never had any issues on my hawk sti running 1.5 bar on the std pistons and std head gasket for 40,000 miles. Not seen any issues on any of the 2006/7 cars i have mapped either. I know some headgaskets have gone on cars though but HGs have gone on 2.0's too.

UK STi will outspool a JDM 2.0 when mapped properly IMO. Sure it has a lower rev limit but you dont need to rev them to change gear to bring it back into a rich torque band. Having said that the hawk spec C RA-R is rather special

The 2008/9 have the same factory map on them - just depends whether they have had the revised map that is supposedly reducing the risk of piston ring failure. Lots of std UK cars have suffered this but to my knowledge only 1 custom mapped car has failed (which was rob's mapped by andy f) but that was because of Shell mixing their fuels up in the tanks. It seems that the custom maps are much safer as well as being far more powerful than the std maps.

The core engine is the same as the 06/07 but the difference is the ecu on the hatches, which is what I would be blaming for failures.
Old 11 January 2011, 11:49 AM
  #33  
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Blimey - information overload!

In my case I want to run it complete standard at first, I need maximum reliability and I'll be putting on about 15k miles a year. Would be nice to run it for a couple of years, so I need to get as low mileage as possible for my budget. There are obviously a lot more UK 2.5s out there than JDM 2.0s so that makes me think I'm more likely to be able to negotiate a bargain on the UK car.
Old 11 January 2011, 12:26 PM
  #34  
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Originally Posted by dynamix
Never had any issues on my hawk sti running 1.5 bar on the std pistons and std head gasket for 40,000 miles. Not seen any issues on any of the 2006/7 cars i have mapped either. I know some headgaskets have gone on cars though but HGs have gone on 2.0's too.

UK STi will outspool a JDM 2.0 when mapped properly IMO. Sure it has a lower rev limit but you dont need to rev them to change gear to bring it back into a rich torque band. Having said that the hawk spec C RA-R is rather special

The 2008/9 have the same factory map on them - just depends whether they have had the revised map that is supposedly reducing the risk of piston ring failure. Lots of std UK cars have suffered this but to my knowledge only 1 custom mapped car has failed (which was rob's mapped by andy f) but that was because of Shell mixing their fuels up in the tanks. It seems that the custom maps are much safer as well as being far more powerful than the std maps.

The core engine is the same as the 06/07 but the difference is the ecu on the hatches, which is what I would be blaming for failures.
Cheers for your input Dunc - most helpful!
Old 11 January 2011, 12:57 PM
  #35  
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Mine is running 352bhp & 400lbft with nothing more than a Miltek Sports catted 3" Exhaust, open source map & Simota panel filter. No HG issues or chocolate pistons.
Old 11 January 2011, 01:23 PM
  #36  
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Originally Posted by ste_brough
Not sure about the torque but thats about the same BHP as a 2.0 remapped with similar mods?A sea is part of an ocean that is partially surrounded by land. If it is totally surrounded, then it's called an inland sea. An ocean is a body of salt water with no boundaries and limitless volume. It's limitless because with no boundaries, definitive quantity cannot be deduced. Between the two, the ocean is the larger of the two.




Isn't TD04 a WRX turbo, VF-something or other on STi?
At a guess torque would be around the 330 mark
Old 11 January 2011, 01:38 PM
  #37  
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Where did the bit about the sea come from in the quote above?
Old 11 January 2011, 01:47 PM
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Originally Posted by ste_brough
Not sure about the torque but thats about the same BHP as a 2.0 remapped with similar mods?

Isn't TD04 a WRX turbo, VF-something or other on STi?
Generally speaking, the 2.5s will make around 25% more torque than a similar 2.0 litre; that's where the larger capacity plays dividends; that and the lower boost threshold, which not even the JDMs can match (hence my comparison to a TD04). bhp levels aren't necessarily that much different like for like. That said, I don't know of many 2 litre PPPs that have achieved 350 on just a remap, 330 is more common and I'd be knocked sideways if a 2.0 litre got 380 lbs ft torque at that level.

Depends what you're after really. 2.5s make for a more convincing performance car when you're not gunning it IMHO, but in order to deliver the 'excitement' of the 2.0 litre cars you need a bigger blower and that means £££.

A 2.5 with a decent exhaust and well remapped is more than most will ever need. I'm just being greedy!

Ns04
Old 11 January 2011, 01:47 PM
  #39  
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Just my thoughts...

If you do expect to aim for 450 bhp, then the JDM engine will only need a suitable turbo and jewellery to manage this, a 2.5 will need a re-build and a turbo.

So you choose.

dunx

P.S. I'm building a 2.1 just to be awkward...
Old 11 January 2011, 02:53 PM
  #40  
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Originally Posted by TonyBurns
the only other main difference is that the 2007 had different head gaskets
So my 2007 one should be ok then?
Old 11 January 2011, 02:57 PM
  #41  
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Originally Posted by ste_brough
Where did the bit about the sea come from in the quote above?


That random bit in the quote actually did make me laugh out loud!
Old 11 January 2011, 04:08 PM
  #42  
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Originally Posted by dunx
Just my thoughts...

If you do expect to aim for 450 bhp, then the JDM engine will only need a suitable turbo and jewellery to manage this, a 2.5 will need a re-build and a turbo.

So you choose.

dunx

P.S. I'm building a 2.1 just to be awkward...
Having owned a 478bhp classic with a 2.5 I can say that it's way more power than you need, great for bragging rights & definitely fun, but 350/350-400 is a lot of fun on the road & very usable without the need for a rebuild. JDM engines are without a doubt stronger, but personally I prefer the torque of the 2.5 - horses for courses
Old 11 January 2011, 04:14 PM
  #43  
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Smile oh yes

Originally Posted by SpecDscooby
I have a 2007 2.5, and previously owned a 2.0 2003 PPP WRX. I find the newer lump much smoother than the old, it pulls better at lowers revs, and noticably uses the Turbo less than the 2.0 lump. Also on the interior there is no doubt a better build quality. Better gaps less rattles and a generally better quality feel...to me.

Just to add a little more, i'm the 2nd owner of my car, and it has never had anything more than routine work done. nothing wrong with my head gasket, or the pistons.

I have no issue with paying additional road TAX, since i never wanted a 4+ yr old car, that i would claim was "reliable"; a car can only ever get worn more and more.... Newer is better for me, and less miles is key...for me!
Exactly what ^^^ said just had a 2007 sti hawk, had a zorst and a mapp fitted 350-350 easy.And i love it
Old 11 January 2011, 04:36 PM
  #44  
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Same as FUD, 2006 STI with zorst and map, 340bhp/360lbsft and its great to drive. Had no issues since being mapped (18 months ago). Whilst I appreciate the JDM is the 'better' car, I would miss the burble too much.. For me its what they are about.
Old 11 January 2011, 05:30 PM
  #45  
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Originally Posted by Luckyscoob
Whilst I appreciate the JDM is the 'better' car, I would miss the burble too much.. For me its what they are about.
Somebody had to say it.
Old 11 January 2011, 06:08 PM
  #46  
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Originally Posted by steve170
I'm also nervous about owning a JDM car. Have things moved on since I had my WRX back in 1999 / 2000? It cost me more to insure, had to get it serviced at a limited number of specialists and parts were really hard to come by. If I got parts from Subaru they wouldn't let me return them if it turned out they were the wrong ones

It had less crash protection, no underseal, no ABS. (It was light and fast though!)
Be nervous about owning a Type UK car, because Type UK means 2 things:

1. It's inferior to the original Japanese 'how the car was intended to be' design.
2. It's going to cost you more to run (road tax for one example)

Greg
Old 11 January 2011, 06:12 PM
  #47  
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Originally Posted by New_scooby_04
Generally speaking, the 2.5s will make around 25% more torque than a similar 2.0 litre; that's where the larger capacity plays dividends; that and the lower boost threshold, which not even the JDMs can match (hence my comparison to a TD04). bhp levels aren't necessarily that much different like for like. That said, I don't know of many 2 litre PPPs that have achieved 350 on just a remap, 330 is more common and I'd be knocked sideways if a 2.0 litre got 380 lbs ft torque at that level.

Depends what you're after really. 2.5s make for a more convincing performance car when you're not gunning it IMHO, but in order to deliver the 'excitement' of the 2.0 litre cars you need a bigger blower and that means £££.

A 2.5 with a decent exhaust and well remapped is more than most will ever need. I'm just being greedy!

Ns04
My 2.0 jdm is 348 bhp and 375lbs torque, just on a Milltek exhaust with a sports cat and remap.
Old 11 January 2011, 06:12 PM
  #48  
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as said earlier - early hawkeye are still old road tax. Mine is
Old 11 January 2011, 07:48 PM
  #49  
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Originally Posted by GREGGYG
Be nervous about owning a Type UK car, because Type UK means 2 things:

1. It's inferior to the original Japanese 'how the car was intended to be' design.
2. It's going to cost you more to run (road tax for one example)

Greg
I'm not nervous about owning a UK car, it all depends on how deep your pockets are & what you want to spend your money on. Yes the road tax on my car is £435 per year, but so what, in the last year its done 3500 miles, so I've not used that much fuel. My other car does 60mpg on derv & costs £125 a year to tax, all swings & roundabouts.

JDM cars are great, the UK cars are great, we got short changed on a few things with the UK spec, but gained in other areas, like the gear ratios, JDM gear ratios are ****e for UK roads IMHO, unless its a Forrester STI.
Old 11 January 2011, 07:56 PM
  #50  
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Originally Posted by DJ_Jon
.

JDM cars are great, the UK cars are great, we got short changed on a few things with the UK spec, but gained in other areas, like the gear ratios, JDM gear ratios are ****e for UK roads IMHO, unless its a Forrester STI.
Do the 06 JDM STi's have the same short ratios as 04 (etc) UK Sti's? From what I've heard the UK Hawks have better (or at least longer) ratios that the UK Blobs.

Anybody know what month of Hawk the £435 tax comes in at btw?
Old 11 January 2011, 07:59 PM
  #51  
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Originally Posted by andythejock01wrx
Somebody had to say it.
LOL, yep, I just love the summer, windows down, burbling and popping around town
Old 11 January 2011, 08:14 PM
  #52  
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Originally Posted by andythejock01wrx
Anybody know what month of Hawk the £435 tax comes in at btw?
1st March 2006 onwards ....
Old 11 January 2011, 08:16 PM
  #53  
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Originally Posted by Luckyscoob
LOL, yep, I just love the summer, windows down, burbling and popping around town
That is defo one thing I miss quite a lot! I just couldn't turn down the mint Type 20 after looking at so many, shall we say, not as mint as they were described on the phone!
Old 11 January 2011, 08:20 PM
  #54  
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Originally Posted by ste_brough
1st March 2006 onwards ....
Cheers Bro.
Old 11 January 2011, 08:46 PM
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Originally Posted by andythejock01wrx
Do the 06 JDM STi's have the same short ratios as 04 (etc) UK Sti's? From what I've heard the UK Hawks have better (or at least longer) ratios that the UK Blobs.

Anybody know what month of Hawk the £435 tax comes in at btw?
The Hawkeyes have longer ratios due to the 2.5 lump, the Forrester has the longest legs of all the 6 speed boxes.
Old 11 January 2011, 08:50 PM
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Originally Posted by DJ_Jon
The Hawkeyes have longer ratios due to the 2.5 lump, the Forrester has the longest legs of all the 6 speed boxes.
Ta John. So are the 06 JDMs like the blob UKs in terms of ratios?
Old 11 January 2011, 09:35 PM
  #57  
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Yes & no - 1 - 4 are the same, 5th & 6th are shorter in the Jap cars. 6th in a JDM car will mean 3100 = 70mph, as opposed to 2600rpm un a UK car, or there abouts.
Old 11 January 2011, 09:47 PM
  #58  
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Originally Posted by DJ_Jon
Yes & no - 1 - 4 are the same, 5th & 6th are shorter in the Jap cars. 6th in a JDM car will mean 3100 = 70mph, as opposed to 2600rpm un a UK car, or there abouts.
Cheers. JDM ratios sound a tad short then - lots of gearchanges.
Old 11 January 2011, 10:01 PM
  #59  
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Forget the rest THE RB320 IS DA BEST.LMHAO.
Old 11 January 2011, 10:54 PM
  #60  
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Smile lol

Originally Posted by scixer6r
Forget the rest THE RB320 IS DA BEST.LMHAO.
And cost 40% more lol but still nice .

When i was looking for a hawk i cdnt find for love or money a jdm with low miles on a 06 07 plate rokcing horse **** comes to mind lol.The only thing close was a white spec c but £21,000 made me mind up pretty quick.


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