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Top speed please.....?

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Old 15 September 2003, 11:47 PM
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( R6 CDW )
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Sorry to ask such an unimportant question!

But, I'm going to ask anyway.

The top speed of my sti 8 is a round 150mph, true ?.
What difference if any, does the prodrive pack make to the top speed ?.

Even a theoretical answer will do.

Kn#bs need not reply.

cheers
chris
Old 16 September 2003, 12:28 AM
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Brun
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Find out how fast your car is going in 5th gear at 1000 rpm and times it by 7 assuming your rev limit is 7000rpm.
Crude but it won't be far off.
Do 8's have 6 gears? i can't remember If this is the case then you'll have to adjust the method accordingly.
Old 16 September 2003, 12:33 AM
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Brun
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Would ppp actually change max speed? Assuming that you can hit the rev limiter in top gear on a non ppp then the top speed can only be more on a ppp if the rev limit is upped i assume?
Old 16 September 2003, 07:49 AM
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TVR Gary
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Non PPP STi 8 on the german autobahn and i got to the magic 160MPH. Not sure how much you take off for error in speedo though.

Have a piccy of the speedo at 157 MPH for you doubters as well, other half only got the rev counter at 160
Old 16 September 2003, 08:24 AM
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urban
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Guys,

There's a limiter on the UK STI's if I remember, and its meant to limit the top speed to be 155mph or somethng like that.

Its also only in 6th gear funny enough.


Shaun

[Edited by urban - 9/16/2003 8:42:55 AM]
Old 16 September 2003, 09:28 AM
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scoobylav
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TVR Gary, Why was the other half taking the pic ?

Half the fun at that speed is trying to take the pic yourself
Old 16 September 2003, 10:21 AM
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TVR Gary
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Scoobylav ..........

I was too busy trying to make my mind up whether to change into 6th gear and get the needle all the way round to 0 mph, so she had to take it
Old 16 September 2003, 10:58 AM
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T5NYW
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I seam to recall, On german road my STi7PPP 5th gear near Rev limit at around 147 mph and 6th speed limiter at 160mph ish (indicated speeds)

I agree with these speeds are too excessive on the roads but it was a very quiet Autobahn and shut off to sensible speeds as soon as goal was achieve

Fastest on track was Nurburg ring final straight(155) next Silverstone(140) and next Bedford(135). this was going by memory and Revs so not very accurate toooo busy looking at approacing corner to look at Speedo on the final two and memory of a goldfish

Tony
Old 16 September 2003, 11:27 AM
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StickyMicky
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mine will happily hit the limiter in 5th and i worked it out via gear rations and tyres sizes etc etc

158.0sumthing acording to the calculator and 162 was showing on the dash clocks

not recomended for jap cars tho
i havnet got the ***** to try it now ive read about engines blowing up and stuff
Old 16 September 2003, 01:45 PM
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John STI 8
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STI 8 has a max speed of 151mph, with PPP it's 153mph. Measured with a vbox. J
Old 16 September 2003, 02:58 PM
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MikeWood
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Speed limits in the ECU are 245kph std and 250kph with a performance package. We have managed to achieve both on a test track (Millbrook)
Old 16 September 2003, 04:37 PM
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John STI 8
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Mike, did you have problems with the front offside tyre whilst testing at Millbrook? I've had sidewall failures on two STI's that I've tested there (after 3-4 laps at VMAX). J
Old 16 September 2003, 04:50 PM
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MikeWood
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We tend not to hold it on for so long. The PPP STi hits the limiter by the bridge as you start the second lap. After that point I back off as it's not proving anything as you'd already found what v-max is.
Old 16 September 2003, 04:57 PM
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John STI 8
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I tend to have to hold max for a couple of laps to get a solid average (the speed tends to vary by about 6 or 7 mph depending on direction), so the tyres are a bit of a concern. Will be fitting some V-rated items before I test again.
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