300bhp per tonne
Discussion
Paradaxos said:
I've seen what's happened here.
This hasn't gone exactly to plan.
The OP's table doesn't refer to 300bhp/tonne cars at all!
I er... am pleased to have uncovered this conspiracy...
I was a bit nonplussed as to the apparently random smattering of cars and figures in the table too This hasn't gone exactly to plan.
The OP's table doesn't refer to 300bhp/tonne cars at all!
I er... am pleased to have uncovered this conspiracy...
300bhp/ton said:
FreeLitres said:
Yep, 300bhp/tonne is a little ambitious.
Time to change user names OP!
Quite. Time to change user names OP!
Still a little way to go. Think it's around 230bhp/tonne at the moment.
)Paradaxos said:
Well you can have a 1996 328i coupe for £2k...
And I think that's the cheapest car in the table in the OP.
And there are lots of posts claiming that's all you can use on the road.
cheap... performance... yes?
I managed to get a 300bhp/tonne car for £3750...do I win £5?And I think that's the cheapest car in the table in the OP.
And there are lots of posts claiming that's all you can use on the road.
cheap... performance... yes?
Out of interest, for all the slating MX5s get for being underpowered, in terms of bhp/tonne even the MK1s are in the same ballpark as a 328i.
Hol said:
Most kit cars weigh in at 500-650kg, dependent on the donor parts used.
A bog standard 2.0 zetec on 45's gives 170bhp so that makes the requisite 300bhp figure very easily.
Some people will stick 300bhp plus engines in making 500bhp/ton drivers.
Not much cop for taking the wife and two kids out to collect the weekly shop though. Just like a motorbike.
Most kit cars used old Sierra parts and weigh a heck of a lot more than 500-600kg. A bog standard 2.0 zetec on 45's gives 170bhp so that makes the requisite 300bhp figure very easily.
Some people will stick 300bhp plus engines in making 500bhp/ton drivers.
Not much cop for taking the wife and two kids out to collect the weekly shop though. Just like a motorbike.
Edited by Hol on Tuesday 1st September 20:33
Surely it depends what it is - even the 7 type kit cars (none bike engined) tend to weigh a lot more than the 7s, the pig iron suspension components, big wheels etc all add up.
No doubt plenty of light kit cars around, but think "most" would be massively optimistic.
pthelazyjourno said:
Most kit cars used old Sierra parts and weigh a heck of a lot more than 500-600kg.
Surely it depends what it is - even the 7 type kit cars (none bike engined) tend to weigh a lot more than the 7s, the pig iron suspension components, big wheels etc all add up.
No doubt plenty of light kit cars around, but think "most" would be massively optimistic.
When I bought my MNR it weighed 530kg. That's with big old Sierra suspension components, uprights and calipers, cheap heavy 15" alloys, Quaife reverse box, ridiculously heavy wing stays and a pretty substantial triangulated rollbar...basically no concession to maximise lightness at all. That was with a bike engine though so it would have been nearer 600kg with something like a Zetec in it. Looking at the spec of most other kitcars I see, you'd be talking 50kgs lighter easily with decent uprights, calipers, wheels etc. etc. which many of them have.Surely it depends what it is - even the 7 type kit cars (none bike engined) tend to weigh a lot more than the 7s, the pig iron suspension components, big wheels etc all add up.
No doubt plenty of light kit cars around, but think "most" would be massively optimistic.
I think 550kg is a reasonable bet and 600kg more like an absolute maximum for the good modern 7 clones.
T0MMY said:
When I bought my MNR it weighed 530kg. That's with big old Sierra suspension components, uprights and calipers, cheap heavy 15" alloys, Quaife reverse box, ridiculously heavy wing stays and a pretty substantial triangulated rollbar...basically no concession to maximise lightness at all. That was with a bike engine though so it would have been nearer 600kg with something like a Zetec in it. Looking at the spec of most other kitcars I see, you'd be talking 50kgs lighter easily with decent uprights, calipers, wheels etc. etc. which many of them have.
I think 550kg is a reasonable bet and 600kg more like an absolute maximum for the good modern 7 clones.
Just got me looking at kit cars, this one definitely has more than 300bhp/ton! I think 550kg is a reasonable bet and 600kg more like an absolute maximum for the good modern 7 clones.
https://www.youtube.com/watch?v=kvZtFUJHFV0&fe...
I had a Caterham 7 with a 150bhp K series so a bit less than 300/tonne with me on board. On twisty B roads and tight tracks nothing could hang on but on a motorway sliproad I would be outdragged by any junior hot exec (C Class AMG, S4 etc). Barn door aero and not much torque need to be considered too.
Another consideration is that, in normal road driving, an engine is producing a fraction of peak power. In those conditions, the lighter car will often feel faster. At high speeds, the heavier but more powerful car will feel (and be) a lot faster.
I doubt I would use 300bhp/ton on the road, to be honest. Peak power would be attainable for how long before you got into big trouble? A handful of seconds?
What would be a typical 30-100mph time for a road car with that kind of p/w? About 5 seconds?
I doubt I would use 300bhp/ton on the road, to be honest. Peak power would be attainable for how long before you got into big trouble? A handful of seconds?
What would be a typical 30-100mph time for a road car with that kind of p/w? About 5 seconds?
R8VXF said:
Wills2 said:
300hp/tonne is a huge amount of power in a road car, you have to be looking at the latest 991 GT3/turbo to gain entry as a standard car and then on into the likes of Ferrari/Lambo/McLaren/R8 [insert mental car of your choice] etc...
Only a few of the AMG/M monsters get to the 300 mark.
VXR8 GTS is a "standard car" that makes the list Only a few of the AMG/M monsters get to the 300 mark.
Probably less than half the price of a GT3 (I have no idea what the Porsche costs).ORD said:
JockySteer said:
Less than half the price and a lot less than half the car of the GT3!
Not a comparable car at all, really. The Mustang is a far better comparator. Those kind of cars are always cheap for the straight line performance.
pthelazyjourno said:
Hol said:
Most kit cars weigh in at 500-650kg, dependent on the donor parts used.
A bog standard 2.0 zetec on 45's gives 170bhp so that makes the requisite 300bhp figure very easily.
Some people will stick 300bhp plus engines in making 500bhp/ton drivers.
Not much cop for taking the wife and two kids out to collect the weekly shop though. Just like a motorbike.
Most kit cars used old Sierra parts and weigh a heck of a lot more than 500-600kg. A bog standard 2.0 zetec on 45's gives 170bhp so that makes the requisite 300bhp figure very easily.
Some people will stick 300bhp plus engines in making 500bhp/ton drivers.
Not much cop for taking the wife and two kids out to collect the weekly shop though. Just like a motorbike.
Edited by Hol on Tuesday 1st September 20:33
Surely it depends what it is - even the 7 type kit cars (none bike engined) tend to weigh a lot more than the 7s, the pig iron suspension components, big wheels etc all add up.
No doubt plenty of light kit cars around, but think "most" would be massively optimistic.
My exocet kit car running a 130bhp mx5 engine in mine which is 500kg so 260bhp/ton well be well over 400 when the turbo it fitted to it.
Also that is nothing compared to a 430bhp exocet just build and dynode in this country using a 1.6 m5 engine so that is near on 900bhp/ton then only thing to have that sort of power/ton a certain bikes.
trashbat said:
The Alfa Giulia is supposed to fit the description. 501 bhp and 1500ish kg. If they pull that off then presumably a few more competitors will follow.
Let's hope they didn't use the same scales they used to weigh the Alfa 4C........else it'll be more like 1600kg in reality ORD said:
Another consideration is that, in normal road driving, an engine is producing a fraction of peak power. In those conditions, the lighter car will often feel faster. At high speeds, the heavier but more powerful car will feel (and be) a lot faster.
I doubt I would use 300bhp/ton on the road, to be honest. Peak power would be attainable for how long before you got into big trouble? A handful of seconds?
What would be a typical 30-100mph time for a road car with that kind of p/w? About 5 seconds?
If WOT was logged for most of us on the roads you would probably find it was under <5% of most journey times, especially with 300bhp/ton IMO. I doubt I would use 300bhp/ton on the road, to be honest. Peak power would be attainable for how long before you got into big trouble? A handful of seconds?
What would be a typical 30-100mph time for a road car with that kind of p/w? About 5 seconds?
Gassing Station | General Gassing | Top of Page | What's New | My Stuff