bhp - maths genius’s

[Ben j]

am i right in that as my car weighs 900 kg?

so if i take my bhp divide it by 9 then times it by 10 thatll give me my bhp per tonne?

 

[paddymph]

dont know, Ive forgot. is it the weight divided by the power X100?

 

[16V_Matt]

think ben has it about right

Power x 1000 = bhp/tonne
Weight in kgs

think thats right ( correct me if im wrong )

Matt

 

[Ben j]

cool! so that means i have 141 bhp per tonne at the wheels!!



and about 171 bhp per tonne at the fly!!



EAT ME 172s !!!! RRAAARRRRRR!!!

 

[16V_Matt]

not sure that its 900kgs tho more like high 900s round 980-990 at a guess!

Matt

 

[Ben j]

mines lighter.

got super light alloys now.. - dunno how much difference though they are in weight, it was just me trying to get a guestimate anyway.. - lol

just like abusing 172s

 

[Matty]

Kerb weight for 16v is 975-980 Kg. Wheels may be lighter but that would not account for much, would be the same or heavier if larger wheels but then not sure if LP tyres would be lighter.

 

[Ben j]

wheels are same size but a lot lighter

 

[Ben j]

lol i know ive over guessed. was just workin it out for a laugh

 

[Matty]

God knows how heavy our cars really are as you can never go by manufacturers figures. Just like 137 brake is probably optimistic as standard. False floors and ICE build will obviously add a bit. Might as well call it a tonne in weight.

 

[16V_Matt]

yea thats what i usually say call it tonne means no workin out that way

Matt.

 

[GR7]

Quote: Originally posted by Ben j on 15 February 2003

cool! so that means i have 141 bhp per tonne at the wheels!!
and about 171 bhp per tonne at the fly!!

What is the fly?

 

[Dave Hester]

Dont forget in real terms that you should account for your own weight thats in the car too

If ya want some faster times at the strip this year it could be worth while getting your arse down to the gym and losing a few kgs!

 

[Nick Read]

Kerb weight is aroud 980 kg for a 16v, seriously lighter wheels might take 10kg off that. Put it this way, Im running:

light wheels only 7kg each

no spare wheel OR cage

kevlar bucket seats in the front (6kg each)

no rear interior (seats, parcel shelf, seatbelts etc)

no jack in the scuttle panel

and Ill be pleased if it makes 950kg.

 

[KDF]

Quote: Originally posted by GirlRacer on 15 February 2003

Quote: Originally posted by Ben j on 15 February 2003

cool! so that means i have 141 bhp per tonne at the wheels!!
and about 171 bhp per tonne at the fly!!

What is the fly?

Flywheel..