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Poll: what would be quicker....................
  200bhp 2.0l red top
  200bhp 1.6 16v
  both roughly the same


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Author what would be quicker....................
psycho sport
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Registered: 27th Mar 03
Location: Guildford Surrey Drives: Vauxhall Monaro
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   21st Jan 04 at 21:38   View User's Profile U2U Member Reply With Quote

just out of interest which one of these 2 would be quicker over 1/4 mile?
both in a corsa and both have throttle bodies with raised rev limiters.

[Edited on 21-01-2004 by psycho sport]
Ian
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21st Jan 04 at 21:43   View Garage View User's Profile U2U Member Reply With Quote

If they're generating the same amount of power then they'd be as quick. The power delivery might affect things but it could go either way. Worth mentioning that it's far cheaper to get a 2 litre to 200bhp than a 1600. Perhaps the 2 litre weighs more but it's a lot less expensive a conversion.

[Edited on 21-01-2004 by Ian]
psycho sport
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21st Jan 04 at 21:45   View User's Profile U2U Member Reply With Quote

what about the torque produced by both engines? would they be the same?

[Edited on 21-01-2004 by psycho sport]
Mattb
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21st Jan 04 at 22:05   View User's Profile U2U Member Reply With Quote

1.6, closer ratio gearbox
J4MIE P
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21st Jan 04 at 23:59   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by psycho sport
what about the torque produced by both engines? would they be the same?

[Edited on 21-01-2004 by psycho sport]


No the 2.0 would produce more torque lower down and therefore be faster accelerating (if you discount gearbox)
Remember torque is what you want when you are accelerating.
Overall Power is only used at Vmax and therefore irrelevant when considering acceleration.

Look at the evidence:
Astra coupe:187 bhp @ 5400rpm
184 lb @ 5300rpm
0-60 6.9 secs
0-100 19.9 secs

Toyota corolla T sport:
189 bhp @ 7800rpm
133 lb @ 6800rpm
0-60 8.4 secs


Even tho the corolla has more power, its not as fast cos all the power is top end.
This is what the 1.6 with 200bhp would be like. All the power will be top end. When it comes to torque, there is no replacment for displacement. (or a turbo)
Sorry for the essay
IntaCepta
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22nd Jan 04 at 17:05   View User's Profile U2U Member Reply With Quote

yep i would imagine the 2000cc would be much more torqier than the 1600cc due to the bigger displacement!

so think the 2litre might take the 1.6...

but then there's the weight of the engine to consider.
luca2020
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22nd Jan 04 at 17:08   View User's Profile U2U Member Reply With Quote

2.0 would, bhp means nothing compared to tourqe
Kris TD
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22nd Jan 04 at 17:10   View User's Profile U2U Member Reply With Quote

weight of the engine wont make that much difference, depends wat the otehr car is like , ie stripped out?
vibrio
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22nd Jan 04 at 17:15   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by luca2020
2.0 would, bhp means nothing compared to tourqe



no it is the spread and level of torque that is required along with revs. this is why the CTR has 197hp but a peak of 145lb but the astra has 190ish 180lb ft. the astra produces more torque lower down the rev range. the CTR is closely geared to make use of the high revs and lowish torque figure
vibrio
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22nd Jan 04 at 17:15   View User's Profile U2U Member Reply With Quote

as for the car. 2.0L with 200hp
miles
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Registered: 25th Mar 02
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22nd Jan 04 at 17:20   View User's Profile U2U Member Reply With Quote

So when you do the 1/4 mile you drive it low down the rev range? Only having power and torque up the rev range wont make much of a difference on the 1/4 mile as your only there in first, and having it mild there will help with traction.

The 1.6 will have about 140lb/ft, the 2.0 about 175lb/ft IIRC.

The 2.0 will weigh about 50kg's more.

That Corolla must be very heavy or have some distinct disadvantage.

Look at the Integra type R, has 187bhp, cant have as much torque as the turbo, and does 0-60 in 6.5....

Also...

Honda Civic VTi 1991 158bhp 7.3

I have a 1.6 nova with 140lb/ft and do a 1/4 mile as quick as an M5, which must have about 300+ lb/ft?
miles
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Registered: 25th Mar 02
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22nd Jan 04 at 17:23   View User's Profile U2U Member Reply With Quote

That took me more than 5 minutes to write LOL!!!

Kris, 50kg's is 50kg's no matter how heavy the car is, although there are diminishing returns.
Kris TD
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22nd Jan 04 at 17:43   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by miles
That took me more than 5 minutes to write LOL!!!

Kris, 50kg's is 50kg's no matter how heavy the car is, although there are diminishing returns.


true but 50kg when the cars have that sort of power isnt really gonna effect it, like my mate used to have a clio rt, now when you stuck people in it it killed acceleration, now he has a clio 16v and it doesnt make a gret deal of dfference if there is extra people.
A_Venables
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22nd Jan 04 at 17:59   View User's Profile U2U Member Reply With Quote

You also have to take in to account the cornering abilities with a car that has 50kg less? Even if you had a C16XE making 200bhp would the gearbox be ok? if it is a F16 you must be getting near to its torque capabilities if you know what I mean
miles
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Registered: 25th Mar 02
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22nd Jan 04 at 18:03   View User's Profile U2U Member Reply With Quote

I know what you mean Kris, but it all counts on the strip. I can notice if I have one passenger.

It would be an F15, can take 150lb/ft...
Daimo B
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22nd Jan 04 at 19:23   View User's Profile U2U Member Reply With Quote

Yeah, but your nova is damn fast, damn damn fast for some reason

I'd say the 2.0 would still take it in a straight line. No substitue for cc when it comes to torque

Even Andys 214bhp 1.6 is only putting out standard 2.0 16v torque figures. True, 50kg odd lighter, but 50kg isn't really that much tbh.
corsa120
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22nd Jan 04 at 19:53   View User's Profile U2U Member Reply With Quote

torque is gr8 but,,,

heres my lowdown

take 1 standard 1.6 16v with 106 bhp and one with 140 bhp down the 1/4 mile the 140 bhp corsa would 99% win an produce the best time

now put 300kg's extra weight in the back of both cars and re-run the 1/4 mile suddenly they will will become alot closer in performance because although the 140bhp corsa has more torque from tuning it has not gained so much that it will still leave the 106bhp corsa

if only you drive the car round tracks an on roads having fun and racing then bhp is what u need but if u are carrying six m8's then having torque makes the difference

take the 1.6 16v corsa has 106bhp and approx 110ibf.ft of torque
now take the honda civic 1.6 vti 160bhp with 111ibf.ft

both cars have same torque but the honda would kill the corsa everytime, so its bhp u need
Daimo B
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22nd Jan 04 at 19:59   View User's Profile U2U Member Reply With Quote

But if both have the same BHP and the redtop more torque the redtop will still win.

Torques how much twist the engien produces, u put ur foot down in a turbo compared to a na car and the turbo will leave the na for dust. Lots more torque.
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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22nd Jan 04 at 20:15   View User's Profile U2U Member Reply With Quote

Yeah but the turbo will have some lag, poor throttle response and a narrow power band.

The 2.0 would probably win, but it would be close.

 
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