What`s your problem??

 

Would probably only cost £5k without Danish tax ! (Went out with a Danish lass for a while - she earned £100,000 GBP a year, but paid £70,000 a year in tax !! Gordon , eat yer heart out !

 

Just what SN needs, eh, another troll!!

Just ignore them; they soon get bored.

ns04

 

are you about Sunday 11 ish ??

 

you going for a drag then alan im sure your standard fit turbo is gonna be bigger than my rotated

 

Yes i am, but my car aint

 

LoL no drag race, And yes your turbo,s bigger than mine

 

Cheers for the drive Alan, it amazes me how your car just keeps improving.

steven

 

Very nice Alan. I hope the intercooler pipes don't spoil your fun like they did mine!

 

what turbo are you running now Alan

 

Its one of Laterals 321 range

 

has it got a p20 houseing on this one by chance

just as as mine is going in to RCM soon and im still wondering weather to stick to my current turbo with a p20 housing or go rotated which i can't really afford

 

So how is a 500hp car worse than a 400hp car ? In the end, if you are sensible, it doesnt matter even if you have a 1000hp car, as long as reliability does not become an issue.
When you have more power It just means that you dont have to push your car very hard to go as quick as a 400hp car would go ( or a 200hp for a matter of fact ). But when an opportunity arises you can enjoy your car to the limit, whereas a person in a 400hp car would be wondering - what would it be like to have another 100 more hp ?
When you have the exact ammount of power that you require, you will stop wondering what would happen then - untill then, keep upgrading!
If your car is too much for you, just lower the boost and sacrifice some power for reliability, thats the beauty of a turbo engine!

On the other hand if you cannot drive without pushing your gas pedal to the floor everytime, i think you are better sticking with a corsa anyway.

 

[quote=serega;7064663]So how is a 500hp car worse than a 400hp car ? In the end, if you are sensible, it doesnt matter even if you have a 1000hp car, as long as reliability does not become an issue.
When you have more power It just means that you dont have to push your car very hard to go as quick as a 400hp car would go ( or a 200hp for a matter of fact ). But when an opportunity arises you can enjoy your car to the limit, whereas a person in a 400hp car would be wondering - what would it be like to have another 100 more hp ?
When you have the exact ammount of power that you require, you will stop wondering what would happen then - untill then, keep upgrading!
If your car is too much for you, just lower the boost and sacrifice some power for reliability, thats the beauty of a turbo engine!


thats how i see it also

 

its all down to power delivery , when you floor your car in 2nd/3rd gear on a normal road things pass you by a lot quicker so you have to think before you hit the loud pedal a quick press for example could mean 100yards but in a normal impreza your ok

 

Now that's what i call a FMIC!!!

 

Dont floor it then, give it a half throttle, or a quarter throttle or 1/6th of full throttle . A gas pedal is not just an on/off button mate

 

Generally the more power you have the bigger the delay in achieving boost. For example 500bhp on a 2.0 is not an easy car to drive, it will lack midrange response, particularly in the lower gears and the torque rise will be very non linear. 550+ on a 2.5 also starts to become a shade laggy.

If these were normally aspirated or supercharged engines then I would agree the more power the better and just control it on the throttle. Turbo car is a different story.

Andy

 

What's the biggest turbo you can fit to a 2.0 UK Newage STi and still get decent response and spool-up Andy ? And at roughly what bhp ?

 

memo to myself stay under 550 I do not like lag

 

Everyones idea of acceptable response is different. My take on it is that for road use, full boost before 3000rpm is ideal. Full boost by 3500rpm is just about bearable if you don't mind stirring the gearbox, any higher than that and it becomes hard work keeping it on the boil, especially in the lower gears and at lower speeds.
For track use its different, you are continually in the upper rpm band so the lag is less of an issue.

Typically you can get just over 400bhp on a 2.0 with full boost from 3000rpm and close to 500bhp on a 2.5

Andy

 

Cheers andy.

With what turbo ? TD05 18G ? MD321H ?

 

Andy is right
Mines got 480bhp/420lbs (maybe slightly more dependent on day to day variation)
This is on a 2 litre and at this level I love it on the road - I wouldnt want less, but anything more on a 2 litre would be a waste of time as it would be way too laggy

I only recently replaced the gearbox - the sti5 one had lasted 8 years - with average power in excess of 380bhp/360lbs (but I dont do drag racing/elvington events as I find them very boring - Track events are much more fun)

The Turbo characteristics make it a bit of a pain to drive on some circuits - like Brands as the power curve just doesnt cover a large enough rev range and means it just isnt quick enough on tracks with lots of bends......at easy to drive circuits like Snetterton its great, and its also nice at places like Coombe........ technical circuits like Brands dont suit laggy Turbo cars..........

I think most people would be fairly comfortable with the power above - I am for 90% of the time

 

Your best asking Mark @ Lateral ,

 

I can say i wouldn't want it laggier than the 18g myself. It fits in with Andy's guidline criteria. 1 bar about 2900 and full boost by about 3300-3400. That's around the (newage) 390bhp mark. You still get caught out requiring a change sometimes to get a move on. Especially when you come out of a TDi

Sure, a laggier turbo giving boost further up the range will give a less linear more boot in the back, but will less driveable. But that doesn't bother some.