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paulsv8manta
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0-60

Post by paulsv8manta » Sun Dec 17, 2017 8:45 pm

Here's a question for you mathematicians.

The Rover sd1 3.5 weighs 1915 kg giving a 0 - 60 in 7.1 seconds.

If said engine is transplanted into a car weighing 1065 kg what would the 0 - 60 be?



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ChrisJC
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Post by ChrisJC » Mon Dec 18, 2017 7:01 pm

Haha, a lot less!

I'm not sure you can calculate it with any degree of accuracy can you?

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ged
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Post by ged » Mon Dec 18, 2017 7:17 pm

That weight is Gross laden, curb weight is approximately 1500 kg then add your weight.

Too many variables to calculate accurately but at a guess just over 5 seconds.

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stevieturbo
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Post by stevieturbo » Tue Dec 19, 2017 12:49 am

There's no doubt it can be calculated...but with so many variables, you'd need a lot more info, especially about traction available etc !
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Post by scudderfish » Tue Dec 19, 2017 5:53 pm

F=ma so assuming (big assumption) that force is constant

a= (mRover * aRover) / (mNewCar)

aRover=3.77 m/s^2 according to http://www.procato.com/convert/

1915* 3.77 / 1065 = 6.77 m/s^2

6.77m/s^2 = 0-60 in 3.96 seconds :D

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Post by plastic orange » Sat Dec 23, 2017 3:05 pm

Both my V8 Minors weigh around 1100kg. Rover 3.9 engined one with hurricane cam and edelbrock carb and inlet through a jag IRS and BW 65 box does a 14.7 quarter at 96 mph - around 200 flywheel hp. Probably equates to 0-60 in around 6 seconds. My other Minor with an LS1 5.7 litre with around 350 fwhp does the quarter in 12.2 @116 mph. GM 4l60e box and Ford 9 inch rear.
Both cars have a power sapping rear end - more so than an SD1 I'd say.

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Re: 0-60

Post by kokkolanpoika » Thu Mar 21, 2019 3:43 pm

My 418hp SD1 run 7 years old road tyres witch are like stones. 2.7s/60ft and 112mph 13.9s 1/4 mile.
6.4s to 0-82.5mph. It will weight with driver and full tank 1700kg.
So 0-60mph would be under 5s. G-tech say 4.6s..

My 2800kg Range Rover sport 4.2SC make 0-71.2mph just in 6.4s. 1/4mile 15.3s and 92.5mph. 60ft 2.3s every time.

It is near as fast as Suprcharged corvette with semi slicks 0-60mph. Couple of tenth second slower.

Timo

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Ian Anderson
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Re: 0-60

Post by Ian Anderson » Thu Mar 21, 2019 7:57 pm

My GT40 was1140kg at SVA and I added soundproofing and bits since then so 1200?

https://www.gt40s.com/threads/santa-pod ... 74&slide=3

Shows a trip I did to Santa Pod and my timing sheet
Lots of wheelspin on street tyres, no special preparation drove it there and back, even had tools and my lunch /water on board!

Dino says 250 ish HP out of the 3.9, at the flywheel, and transaxle soaked up about60 of those!

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Re: 0-60

Post by DaveEFI » Fri Mar 22, 2019 10:22 am

paulsv8manta wrote:
Sun Dec 17, 2017 8:45 pm
Here's a question for you mathematicians.

The Rover sd1 3.5 weighs 1915 kg giving a 0 - 60 in 7.1 seconds.

If said engine is transplanted into a car weighing 1065 kg what would the 0 - 60 be?
The figure you've given for the SD1 is the gross vehicle weight. Showroom weight is quoted as 1440 max. That 7.1 O-60 won't be achieved with the car fully loaded.
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