41 replies to this topic

[spuk87]

lets see if anyone agrees with that comment about vockys low spec car

Haha, note the technicality in that I said 'purchasing', doesn't mean it is the 'low-spec' version any more .

p.s. i dont have an NA

I must be confused, I thought you were supercharged?

PS I don't even know you but I did think 'where's that Joe 589 guy gone' last week when it was quiet

[The Batman]

exactly it is SC not NA (forced induction instead of naturally aspirated) lol i must spend too much time on here! did you miss me even though you dont know me then?

Edited by joe_589, 04 July 2009 - 03:56 PM.

[spuk87]

exactly it is SC not NA (forced induction instead of naturally aspirated)

Ha fair point

lol i must spend too much time on here! did you miss me even though you dont know me then?

Lol I was beginning to get genuinely concerned for your whereabouts

[The Batman]

that just sounds wrong!

[Guy182]

[Guy182]

all it takes is typing in 0-60 calculator.....

like this

all you need to know is bhp at the flywheel, weight of the car and bingo all the statistics you need to make you have a bigger willy at the pub

doesnt take into account gearbox or grip.

Edited by Guy182, 04 July 2009 - 04:05 PM.

[The Batman]

all it takes is typing in 0-60 calculator.....

like this

all you need to know is bhp at the flywheel, weight of the car and bingo all the statistics you need to make you have a bigger willy at the pub

doesnt take into account gearbox or grip.

very true

just for the record what bhp and weight where you running to get 0-60 in 3.85s

Edited by joe_589, 04 July 2009 - 04:10 PM.

[vocky]

now that is what I call a quick vx220 for the record I think my vx is slow and needs more power

[The Batman]

for the record I think my vx is slow and needs more power

not as much as mine i got big ideas and i know where you live

[siztenboots]

pats 420bhp/tonne

[SteveA]

I managed a 4.5 second 0-60 run in my 245bhp turbo with sticky tyres. I'm rubbish at launch starts tho, I recon a shade over 4secs is possible if you have no regard for the clutch.

[Crazyfrog (Fab)]

exactly it is SC not NA (forced induction instead of naturally aspirated)

it is the sc when i cook i never use force induction always ue the best traditional method naturaly aspirated with a pinch of salt (itb"s)
better result in the end and it is all about the finishing produce and of course the driver
itb"s with no fear that's business
back to the sandwich night
can't afford a s/c anyway

[The Batman]

what have i always said fab?!

i am a sh** driver, i only bought a supercharger so that i could catch people up on the straights and then play chase around the corners

off to bed now, hard nights working drinking

[Nev]

1/ I think a 'bitey' clutch makes a big difference. I know my Sachs clutch can't cope with 350 lb/ft of torque and slips, and am pretty sure this limits the power delivery to the sheels in 1st gear, as it doesn't really bite the flywheel when you drop it. To emphasise this, the car is almost impossible to wheel spin on dry smooth tarmac even in first gear... 2/ I run R888 tyres, these make a huge diff to all aspects of grip on the car and must surely improve 0-60 times. 3/ Weight.... remember KE =1/2 MVV. This means weight in the car has an 'arithmetic line' graph influence on the acceleration. So for example, a reduction of say 45 Kg in your car (ie 5% weight reduction), will theoretically incur a 5% acceleration bonus to your 0-60 times. Eleminating 45 Kg off a Turbo car isn't that hard if you are a bit brutal... start by using an empty fuel tank, roof left at home.... 4/ Ambient air temps will help a lot, doing your 0-60 time in winter in 0 degrees will provide approx 10+ BHP more than in 30 degrees (in a 300 BHP car).

Edited by Nev, 05 July 2009 - 06:14 AM.

[Winstar]

3/ Weight.... remember KE =1/2 MVV. This means weight in the car has an 'arithmetic line' graph influence on the acceleration. So for example, a reduction of say 45 Kg in your car (ie 5% weight reduction), will theoretically incur a 5% acceleration bonus to your 0-60 times. Eleminating 45 Kg off a Turbo car isn't that hard if you are a bit brutal... start by using an empty fuel tank, roof left at home....

I think the equation your looking for is F = MA

F is the torque of engine - any losses and M is the mass of the car. Higher the force and the lower the mass the faster the acceleration.

[smithers]

4/ Ambient air temps will help a lot, doing your 0-60 time in winter in 0 degrees will provide approx 10+ BHP more than in 30 degrees (in a 300 BHP car).

but unfortunately the road will be cold, so not as grippy

there is also a trade off with 888s as they will be more inclined to slip the clutch rather than giving a limited wheelspin which can help you off the line

[cheeky_chops]

pats 420bhp/tonne

how do you get to that figure steve?

Edited by cheeky_chops, 05 July 2009 - 11:43 AM.

[siztenboots]

pats 420bhp/tonne

how do you get to that figure steve?

more importantly have you fitted those piper cams yet

[cheeky_chops]

i asked first!

[chris]

0-60 mph => 3,7 - 3,8 s with a car "slitghy" modified and lightened :




But the interest of the car is somewhereelse