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Mieran
13th July 2010, 17:40
What would you say is a good power to weight ratio in the performance/modified car world?
stinkycheese
13th July 2010, 17:48
200bhp/tonne?
Tommo87
13th July 2010, 17:52
In a street car anything above 200/tonne is a nice figure, I know the civic was fun with 225bhp/tonne.
Tontsy
13th July 2010, 18:49
About 3-400+ imo.
RAFkev
13th July 2010, 19:26
200bhp/tonne?

For that you surely be looking at either average power with no weight i.e. Westfield/caterham or average weight with big power i.e. Evo fq400!
stinkycheese
13th July 2010, 19:29
I figured an EP3 CTR and Clio 200 are 166/tonne so 200/tonne would be a good realistic, usable amount of power on the road.
sparky771
13th July 2010, 19:30
theres a MX-5 in Redline that got an estimated 508bhp per tonne now thats a nice figure :)
tom130691
13th July 2010, 19:36
i would be happy with 100 per ton atm :/
MiniGibbo
13th July 2010, 19:53
200p/t plus is what your aiming for.. I know somone had had a scooby running 250p/t and it was defently capable around town.

Edit: anyone know the sums to work it out?
stinkycheese
13th July 2010, 19:58
Vts is 120/.940
Tontsy
13th July 2010, 19:59
200p/t plus is what your aiming for.. I know somone had had a scooby running 250p/t and it was defently capable around town.

Edit: anyone know the sums to work it out?

Devide the power by the weight.

Example

100
Bhp in a car that weighs 750 kilo

100/0.750= 133Bhp tonne
SaxoJamie
13th July 2010, 20:21
anything over 200bhp per tonne is pretty decent on a road car tbh
MiniGibbo
13th July 2010, 20:40
Ah my car only makes 160 p/t :S
Paul
13th July 2010, 20:47
Mines roughly 180 per tonne, and thats alot of fun on the country roads.
RAFkev
13th July 2010, 22:33
I'm assuming I've lost 50kg (ish) by removing back seats, fitting cobras up front and losing the spare wheel, so do we think 900kg is about right for my vts? If so, and my peak bhp figure a few months back was 164bhp.

So 164 / 0.9 = 182bhp/ton

Happy with that!
brianS
13th July 2010, 23:28
235bhp per tonne
damn having such a heavy brute of a thing
Tommo87
13th July 2010, 23:35
I'm currently at 173hp/t in my EG6, no wonder I miss my old civic. I reckon if I hit anything over 200hp/t with full interior I'd be happy.
Rotrex_Rallye
14th July 2010, 00:02
my vtr's about 110bhp/tonne, my 306 is about 260bhp/tonne and delta is about 240bhp/tonne. I also have an old escort 55 van that we use for the scrap runs, comes in at 46bhp/tonne!! If anyone has driven one of these, you'll know what I'm talking about. Absolutely shocking.
titchster
14th July 2010, 07:04
TBH, looking at most modern hatches nowadays, they're usually between 150 and 200bhp/ton standard.

So yeah, 200bhp/ton is probably a good p/w ratio. Although between 150 and 200 isn't necessarily bad. Anything less than 150bhp/ton is probably starting to get a bit on the lardy/underpowered side.
Fulch
14th July 2010, 07:06
I know my VTR is 103.1 BHP but its under a ton as far as I'm awear but I wouldnt know how much under so I cant acutally work it out :(
RAFkev
14th July 2010, 09:11
Check this out to give you an idea:
www.strikeengine.com/performance-car-specs-0-60-0-100-power-weight-top-speed.html
maddison_vts
14th July 2010, 09:22
had mine weighed last monday with all the interior in and loads of crap in the boot and in the footwells.

still comes out at 288.8bhp/tonne. fairly respectable i think
RAFkev
14th July 2010, 09:46
had mine weighed last monday with all the interior in and loads of crap in the boot and in the footwells.

still comes out at 288.8bhp/tonne. fairly respectable i think

What did it weigh?
maddison_vts
14th July 2010, 09:58
What did it weigh?

just over 900kg
MiniGibbo
14th July 2010, 10:25
my vtr's about 110bhp/tonne, my 306 is about 260bhp/tonne and delta is about 240bhp/tonne. I also have an old escort 55 van that we use for the scrap runs, comes in at 46bhp/tonne!! If anyone has driven one of these, you'll know what I'm talking about. Absolutely shocking.

Why ford never fitted a turbo ill never understand :wall:

Have to admit on a flat around town the escort isnt bad its just on dualcarrige was crawling up long hills :n:
KamRacing
14th July 2010, 10:26
had mine weighed last monday with all the interior in and loads of crap in the boot and in the footwells.

still comes out at 288.8bhp/tonne. fairly respectable i think

Got to love turbos :D
I aim to get 290bhp/tonne by getting my car to 690kg which is decidedly difficult!
I think anything over 200bhp/tonne is fast and enjoyable for a road car, certainly enough to get you into trouble a lot