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    Is the 2l direct injection turbo engine better than the 1.8t it replaces ?

    The title is not entirely accurate, what i was meant to ask was; is the 2l turbo (in the current golf gti) as tuner friendly and robust as the 1.8t was in the mk4 gti ? i mean, it has direct injection which is great for turboing so it should be pretty tuner friendly too ? the 1.8 was known to...
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    really confused with turbo charging..

    i was reading a book called 'Maximum Boost' by corky bell.. in it, it mentions how in theory, 1 bar of boost (14.7psi) the horsepower figures should double since theres 2 atm pressure.. fair.. one car that seems to defy this is the mazda rx7.. in stock form, it makes 220 rwhp (at 0.62 bar)...
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    silvia s15 question...

    the s15 spec R is pretty expensive to import because that's the model that people want and is in demand... what about the non-turbo spec S ?? how much would a spec S cost to import ?? .. what is the difference between the spec S and spec R apart from the cosmetics and the lack of turbo ?
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    japanese drifting dinosaurs.. (rx7/s15)

    what is it about these cars that make them such ideal drift cars ? especially the s15.. i dont think i've ever seen one NOT drifting... i saw one parked and even that was parked at an angle with opposite lock. lol..
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    MX-5 NC v S2000, which is the better tuning project base ??

    i want to start a tuning project, but i am having trouble choosing between these 2, i want to know which has the best base, eg chassis, suspension layout etc, things that you can't just get from the aftermarket... the mx5 is lighter, has a more modern, stronger chassis/suspension, its cheaper...
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    why is a bigger stroke better than bigger bore at low rpm ??

    why would an engine with a bigger stroke be better than an engine with a bigger bore at low rpm ?? take for example, two 2 litre engines. one has longer stroke than bore, whereas the other has a bigger bore than stroke. shouldn't low rpm performance be the same for both as 2 litres of...
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    low rpm turbo = better fuel economy ??

    Golf gti 1.8t 20v (180) averages 35mpg honda integra type R 1.8 vtec averages 31mpg the golf is a turbo, if a low rpm turbo was fitted onto the integra, would the fuel consumption increase ?? or would you need to make the gears longer ?? but then again, it is also said that fuel economy is...
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    Advantages of increase engine stroke apart from ...?

    .. increasing the torque all over the revs, by increasing displacement (increasing bore does that too though) ?? are there any other advantages ?? it also lowers the safe max rpm, which is a disadvantage... are there any advantages over increasing the bore size instead ?? i've read through...
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    turbo torque power (S3) vs high rpm power (Civic type R) ??

    in other words, power by torque v power by high rpm... what are the advantages/disadvantages of getting 200+ bhp, from a 2 litre engine, by increasing torque with turbos rather than increasing rpm range ?? or vice versa ?? 1) one advantage, i think, of the high rpm engine is maybe the lower...
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    1uz-fe changes

    What were the exact changes done to the 1uz-fe over the years ? There was a change in 1995 and in 1997 (VVti).
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    rb26 dett N1... ambitious ??

    i am not in a financial position to do anything right now.. BUT..i was wondering.. with a budget of a billion pounds, without being ridiculous.. i saw a rb26 dett N1 block (an rb26 dett but MORE ...apparently) on the internet for around 1.5k.. am i being ambitious by considering buying one as a...
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    questions on the VAG engine

    im looking to buy either an audi S3 (225), a3 1.8t (150) or an a3 1.8t (180) VAG engine. 1) what is the difference between the (150) and (180) versions of the a3 (apart from the obvious power difference, DUH) 2) which of these engines is "large port"/"small port" and what is the difference ...

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