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Old 16 August 2002, 02:25 PM
  #31  
TonyBurns
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Ok im going to get technical
Forged pistons......
hmmmmmm ok, somewhat like forged tools.... you can pick these up dirt cheap, the reason?
Cheap cr@p....
There are different types of forging, the way that the subaru pistons are forged is not quite in the same way items like cosworth pistons are forged..... sounds funny but its true!
In some circumstances, a cast item is probably stronger and unless you have the item forged so its all directional ie the grain should all run in the same direction (which cheaper items dont!) then your wasting your time.
As for outpacing jap imports
Yup ive done this
now if you think that i never stated id outpaced an sti ( the sin of it unless you count that sti7 on the M6 when i left it in 5th ) then you may well see that there are alot of early wrx's which have less power than my lowly uk car

We all know that boost kills our engines, the reason i said about an engine rebuild and close deck blocks is that alot of earlier cars have gone this way and have good reliability but it will cost you around 5k for a full engine rebuild (scoobysport charge around 4k ish i think) so 10k is a fair price to get your car up to standard with all that extra power that your car will be able to run

Tony
Old 16 August 2002, 04:26 PM
  #32  
Adam M
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tony,

regardless of what kind of forging they use, I am confident in the ability of the subaru forged pistons.

They are rumoured to be fine for 1.8 bar, its just the standard rods I would worry about which are all crap.

you outpacing one sti on the road is hardly conclusive of uk cars being as quick as jap imports, but on the road you would be hard pressed to tell the difference anyway unless you know the exact points at which the driver puts his foot down.

Closed deck blocks and expensive rebuilds are also not a necessity. I know just as many uk cars that have died as jap cars, and rebuilds with a closed deck block have never been of paramount importance. If you are going for mega horsepower then maybe, but otherwise i doubt its of much importance.

major advantage of sti is also ally suspension components which significantly reduce unsprung mass which helps handling.

As for parts being harder to get hold of this is again absolute nonsense.

Aside from the above mentioned suspension which I have never known to fail, nearly all bits are identical and can be sourced everey bit as easily as any uk bits.

On all the time I have owned jap import imprezas (3 years) I have never had any problems sourcing any standard parts.
Old 16 August 2002, 04:31 PM
  #33  
grabber
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what type of fuel would i have to use in a import, is detonation a real problem?
Old 16 August 2002, 05:26 PM
  #34  
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Grabber,

you will need to run it on SUL as a minimum - I also like Optimax - others here don't for vague and uncertain reasons.

For super safety add a touch of NF or a bottle of Millars Octane booster to each tank.

Having said all of that - there are plenty of STi Vs around that have run on SUL and nothing else and run well for miles. If you tune them - then things change. But if it is standard then you should be fine.


Tony,

so earlier it was STis don't have forged pistons....now they have forged pistons but they are crap ones. Make your mind up..........I mean until you said that I was starting to take your advice seriously, indeed was crafting my STi for sale ad for Top Marques.

Trout

PS Tony - STi 7s are slower and heavier - with less power - so if you weren't on the pace well.....what can I say.....cross-country with the same level of driver skill - it wouldn't be seen again

[Edited by Trout - 8/16/2002 5:30:06 PM]
Old 17 August 2002, 01:44 AM
  #35  
johnfelstead
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the STi forged pistons may not be as high a spec as a set of cosworth or acralite, but they are more than up to the job, thats why they are in the engine, thats why my rev limit is 8250rpm rather than what? 7000rpm of a UK turbo?

I forgot to mention mine has a twin plate clutch as standard, quickshift as standard, it also has 100 Watt headlamps as standard. Boost really kicks in around 3300rpm, but it pulls all the way to 8200rpm, thats one rather wide power band.

The original question was whats fastest for £15K, the answer quite simply is an STi5 TypeRA V-Limited. And these were not cheep cars, my own car was imported brand new at a cost of almost £30K.
Old 17 August 2002, 01:46 AM
  #36  
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oh, it has the large centre dial set aside for the rev counter, as all proper cars are, not for the speedo as the UK car.
Old 17 August 2002, 10:34 AM
  #37  
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Anyway i dont really see the advantage of having forged pistons but i do see an advantage of having forged con rods
Your opinions please

Tony
Old 17 August 2002, 11:51 AM
  #38  
Trout...
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Tony,

please make your mind up....

First of all Stis are crap becuase they don't have forged pistons

Second Stis are crap because they do have forged forged pistons but not very good ones

Third STis are crap because they don't need forged pistons

Is there something you have against STis

Trout
Old 17 August 2002, 12:39 PM
  #39  
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Forged pistons ( whether they be real forged cossie pistons, or these make believe forged, pretend forged, cast coated, sugar dipped, whatever they are maybe even STI forged pistons ) are stronger, and can hence me made using less material, which obviously makes them lighter. Some types of cast piston can be very good, especially for turbocharging, but they will be heavier. In a revvy engine like a subaru, heavy isnt good.
Not sure of the reason why, but I have seen a lot of wrx/sti types, and to be honest, they didnt have any power?? For cars claiming to have circa 280bhp as standard, if I owned one, id be very upset. The UK cars seem to be more consistent with their performance. Saying that, if you can get a good sti type car, then it will go pretty well, just be sure it is a good one. Try and drive as many as possible, as good ones do seem harder to come by. If I was paying my money, I would go for a jap motor, purely as it does come higher specced, but would choose very carefully. Then of course Id modify it instead.
BTW John, 100W headlamps are illegal in the UK, they have also been known to melt the wiring. A lot of Jap cars Ive seen with them fitted have uprated PIAA or Cibie wiring kits for the headlamps. Saying that, std subaru headlamps are crap, the 100's are almost necessary.


Old 17 August 2002, 01:55 PM
  #40  
johnfelstead
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tony, forged pistons allow you to rev the engine higher, which allows more BHP/litre, why is that confusing?

100W are standard fit to the STi5, they are perfectly fine as regards melting etc, if they werent, STi would not fit them.(and they are vastly better than the lights i used to have on my UK car)

They may be illegal in the UK, but that is what is in them, i guess SVA arent doing their job properly. 130W is common place on subaru's in the Cibie and PIAA conversions, they are illegal too, but companies like scoobysport sell them and people do use them.

Go to any halfords, you can buy 130W bulbs off the shelf, yes they are illegal to use on the highway, but they sell them and people use them.

Rating a bulb on watts, i.e. power consumption is stupid anyway when it comes to the law. What should be rated is the brightness/focus of the light, something like a HID will use much less power than the legal limit yet produce vastly more light. The law is there to help protect roadusers is it not? Like lots of UK laws, its way out of date. The law came into force when you couldnt control the light beam so eficiently and would dazzle oncoming drivers with a bright light. It is now safer to run a high eficiency light that is more focused, thats why car makers are using HID's etc.
Old 17 August 2002, 01:57 PM
  #41  
Bruiser.STi
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John, Do all V-Limited have the Twin plate???
Old 17 August 2002, 02:42 PM
  #42  
Claudius
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the STi forged pistons may not be as high a spec as a set of cosworth or acralite, but they are more than up to the job
Let's hope so... Seriously, how much boost are you running?

I forgot to mention mine also has 100 Watt headlamps as standard.
Oh wow

The original question was whats fastest for £15K, the answer quite simply is an STi5 TypeRA V-Limited.
No, the answer is a Lancer Evo 5 RS
Old 17 August 2002, 03:29 PM
  #43  
johnfelstead
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*yawn*
Old 17 August 2002, 04:23 PM
  #44  
ustolemyname??stevieturbo
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You mean the law is there to protect us??.....PMSL rolling about the floor. Hmmm, That may have once been true, but nowadays, it just seems to be there to crucify the average working man ( and woman ), who actually tries to stay within the law.
Fastest car for 15k ?? A legacy, with all the mods you would ever want to do to a subaru, and then with the change, you can buy petrol, and insure it too.
Ive never tried 130w.. are they much better?? I have 100's in mine.
Id also be interested in some of the PIAA bulbs, which claim to be much better than any other, but they too are very expensive.
Anyone here used the PIAA bulbs, or similar ??
Old 17 August 2002, 06:34 PM
  #45  
johnfelstead
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the law is there to protect us, however, quite often its the decent people who are being screwed by the system as thats easier than going after genuine criminals and helps keep the stats in the right ballpark. Sad but it seems to be true these days.
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