View Full Version : Highest hp per litre ever?
Egg Nog
10-09-2003, 07:41 PM
I just wanted to get some views on what the highest output is per litre in any car ever... naturally-aspirated or not...
Don't rush ahead and say "my CiViC 'cuz its DA bom" because compared to what I'm talking about, that's nothing ;)
So, what is it? So far the most I can think of is one of those old Formula 1 turbo engines, producing up to 1400hp from a 1500cc.
*Does calculations...* Hmm... that's around 930 hp per litre, and pretty close to 1 horsepower from a single cubic centimetre! And you thought the S2000 was special :)
megotmea7
10-09-2003, 07:49 PM
well as for street legal the late model japnese FD's had 280hp out of a 1.3 liter engie thats a little over 215hp/liter and the highest for a stock production car i think, i dont think you'll beat that F1 cars as far as race cars go tho lol
mechanixfetch
10-09-2003, 10:16 PM
I'm agreed with the post above but for readily available hp per litre now a days the Wankel by Mazda isn't too shabby.
Egg Nog
10-10-2003, 09:30 PM
Well, I'm not so sure if I count that because rotaries operate in a completely different way than standard internal combustion engines... let's just say we're talking about piston engines here :)
Are we counting how many litres displaced by the moving parts on a jet engine? ;)
megotmea7
10-10-2003, 09:56 PM
well technicaly turbo fan/turbojet engines dont have any displacement unless you caunt inlet to outlet volume of air and even that fluctuates, i see where your coming from but the differences between a piston engine and a rotary and a piston engine and turbojet are so large it isnt worth the comparison;)
Egg Nog
10-10-2003, 10:01 PM
Hahah... shut down :)
Anyway, how about those piston engines? ;)
megotmea7
10-10-2003, 10:21 PM
well this doesnt have much to do with hp/liter but its still interesting, the 2jz-gte ahs the strongest stock bottom end of any car, the most powerful supra withs stock internals is 980hp, now thats worth some mentioning:D
piledriver
10-21-2003, 05:22 AM
as far as I know the honda S2000 has the best relation power/litre of a NA car nowadays, with more than or equal 100 hp/l
Egg Nog
10-21-2003, 05:03 PM
Originally posted by piledriver
as far as I know the honda S2000 has the best relation power/litre of a NA car nowadays, with more than or equal 100 hp/l
1. It's actually 120 hp/l
2. Read my first post. :)
NoOne
10-22-2003, 08:10 AM
I never really thought of hp/l in terms of F1 cars ....I honestly thought top-fuel dragsters had that in the bag ..... I was wrong !!
Top fuel dragster puts out approx. 6000hp ...typically from a 500 cid (about 8.2 litres) engine ... that works out to around 731hp/l, totally respectable, but obviously not in the same league as the Formula 1 cars .... I wonder if its closer to compare torque/l ?:D
Egg Nog
10-22-2003, 09:35 PM
Originally posted by NoOne
I never really thought of hp/l in terms of F1 cars ....I honestly thought top-fuel dragsters had that in the bag ..... I was wrong !!
Top fuel dragster puts out approx. 6000hp ...typically from a 500 cid (about 8.2 litres) engine ... that works out to around 731hp/l, totally respectable, but obviously not in the same league as the Formula 1 cars .... I wonder if its closer to compare torque/l ?:D
Haha, yeah! I'll they don't produce nearly as much torque, and it's fairly easy to figure out...
At redline (approx. 14,000 RPM), a 700hp F1 car makes...
hp = torque * rpm / 5252
750 = torque * (14000/5252)
750 = torque * (2.67)
torque = 750/2.67
torque = approx. 280 lb-ft @ 14,000 rpm
Not too much is it? Well, not compared to what you might think at least :) I think an 8.2 litre blown alcohol/nitromethane V8 might produce just a little bit more ;)
megotmea7
10-24-2003, 12:44 AM
peak torque isnt at peak hp, its usualy lower on a car with a 14000rpm redline id say its at about 6-8000rpm.
and id guess they put out about 350-450ft-lbs or torque at their peak still not much tho
Egg Nog
10-26-2003, 12:50 AM
Originally posted by megotmea7
peak torque isnt at peak hp, its usualy lower on a car with a 14000rpm redline id say its at about 6-8000rpm.
and id guess they put out about 350-450ft-lbs or torque at their peak still not much tho
Yes, I'm aware of this, but I only knew the car's redline :) Just helps to prove my point...