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Old 11-08-2006, 01:04 PM   #1
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I was talking to a guy at work who has a drag car.He was telling me it runs 8.05 @165ish with a 4.30 rear gear, a powerglide ,second gear is 1 :1 and crosses the lights at 7200 rpm.Okay I have 99 Grand Am it has a 4 cylinder and 3.94:1 gear, at 7200rpm it shut off at 118 with a overdrive.I also have olds cutlas with a nasty motor and a 3.42 rear gear with a 350th tranny and third is still at 1:1and top speed at 6000 rpm is about 120mph.How is he coming up with 165 mph top speed with a 4.30 rear gear?
Out of all the cars that i have driven the only car that i think that could hit that top speed with lots of room would be something like my 03 ssei with its 2.93:1 gear with the overdrive in the tranny. What am i missing?
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Old 11-08-2006, 02:44 PM   #2
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powerglide = 2 gears
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Old 11-08-2006, 03:05 PM   #3
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easy only one word for that its horsepower make youre mph nothing else change gear you will run faster but do the same mph
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Old 11-08-2006, 03:11 PM   #4
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firebuick.can you restate that please.

I read it twice..make that three times and can't quite understand what you are saying.
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Old 11-08-2006, 03:14 PM   #5
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i said horsepower make youre mph nothing else the more horsepower you have the more mph will be high if he does 165 mph its because he making the horsepower to do it
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Old 11-08-2006, 03:20 PM   #6
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You say if both cars are equal on drivelines and one has more horsepower that at 7000 rpm one will go faster than the other? That isn't possible.

What is possible is that one of the two cars has different sized tires, it sounds like the two cars have the same gear ratio..

More power alone isn't able to change the speed at the same RPM, it helps you overcome wind drag etc to gain more speed by being able to increase RPM.
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Old 11-08-2006, 03:36 PM   #7
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gear ratio or tire size will change youre et not youre mph more power will built speed faster
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Old 11-08-2006, 03:56 PM   #8
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Yes, you can build speed faster with more torque and horsepower. I think we are saying the same thing.. but I'm still having translation issues at my end.
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Old 11-08-2006, 04:26 PM   #9
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Quote:
Originally Posted by BillBoost37
Yes, you can build speed faster with more torque and horsepower. I think we are saying the same thing.. but I'm still having translation issues at my end.
Ditto.

More horsepower doesn't mean faster mph at same rpm, it just means you will get to that speed faster
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Old 11-08-2006, 04:43 PM   #10
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if you get there faster youre mph will be higher do you know you need 2 thing to know your horsepower of you car the mph and the weight of youre car the ET has nothing to do whit it
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