top speed - Genesis Forum: GenCoupe Hyundai Genesis Forums
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#1 Old 06-09-2012, 02:16 PM
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top speed

I just bought a 2011 3.8 track addition gc. I searched everywhere i would like to know what is the top speed of a GC. 3.8 auto. I have taken it to145mi it was still pulling. thanks
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#2 Old 06-09-2012, 02:22 PM
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155 = governor limit, if you get a tune that removes it you can hull beyond that
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#3 Old 06-09-2012, 03:52 PM
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Quote:
Originally Posted by rdg View Post
I just bought a 2011 3.8 track addition gc. I searched everywhere i would like to know what is the top speed of a GC. 3.8 auto. I have taken it to145mi it was still pulling. thanks
Why didn't you take it to the limit when you were so close?

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#4 Old 06-09-2012, 04:13 PM
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My thoughts exactly.
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#5 Old 06-09-2012, 07:42 PM
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136 got scared of gettin pulled over lol

took my seatbelts out so i can go faster
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#6 Old 06-09-2012, 08:24 PM
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top speed by gear limit; V6 Auto.

1st Gear (mph): 33
1st Gear (kmh): 53

2nd Gear (mph): 59
2nd Gear (kmh): 94

3rd Gear (mph): 90
3rd Gear (kmh): 144

4th Gear (mph): 120
4th Gear (kmh): 192

5th Gear (mph): 158
5th Gear (kmh): 253

6th Gear (mph): 199
6th Gear (kmh): 318

However, you're electronically limited at 155mph by the factory.
Actual top speed will vary as drag will occur.

2.0T's are gear limited at 165mph/264kph, I've personally been to 255kph on a private road.

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Last edited by Snoopy0812; 06-09-2012 at 08:27 PM.
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#7 Old 06-09-2012, 08:27 PM
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wow, did realize he gears were that tall on the auto!

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#8 Old 06-09-2012, 11:07 PM
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I think the 2.0t is electronically limited at 137 too, but i never confirmed that. Anyone here know?

Sent from my DROIDX
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#9 Old 06-09-2012, 11:10 PM
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Give me 10 minutes I'll go find out.

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#10 Old 06-09-2012, 11:14 PM
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Quote:
Originally Posted by Subversion View Post
I think the 2.0t is electronically limited at 137 too, but i never confirmed that. Anyone here know?

Sent from my DROIDX
Not all of them are for some reason.
There are several members here that could go faster than 137mph/220kph completely stock with their 2.0T's.

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#11 Old 06-09-2012, 11:31 PM
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Went out to get a coffee from tims, this thread made me want to speed but I just couldn't do it! Got up to 120kph so I'll say that's too speed ;P

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#12 Old 06-10-2012, 12:26 AM
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I've done 155. I think I remember doing the math and the 2.0mt is gear limited to 157. I think thats what 'I came up with at least.

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#13 Old 06-10-2012, 12:31 AM
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2.t a/t has 1 less gear than everybody else, except the 2013 (2 extra gears in the autos)
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#14 Old 06-10-2012, 02:12 AM
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i went 230 mph in my 2013 2.0.
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#15 Old 06-10-2012, 02:25 AM
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In your Wildest Dream:
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#16 Old 06-10-2012, 02:36 AM
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Quote:
Originally Posted by Ramrod87 View Post
i went 230 mph in my 2013 2.0.
You're pretty full of it lol

a veyron has a top speed of like 250 mph.

2013 ratios

2.0t manual

1st-----3.848
2nd----2.317
3nd----1.623
4th-----1.233
5th-----1.000
6th-----0.794

diff-----3.538

2.0t automatic

1st----3.964
2nd----2.468
3rd----1.61
4th----1.176
5th----1
6th----0.832
7th----0.652
8th----0.565

diff----4.181


3.8 manual

same ratios as the 2.0t

3.8 automatic

same as the 2.0t automatic.

Last edited by AKGC; 06-10-2012 at 02:50 AM.
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#17 Old 06-10-2012, 03:01 AM
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the mechanical top speeds are

2013 manuals

168 mph - 271 kmh


2013 automatics

200 mph - 322 kmh


these are calculated @ 6400 rpm and having a over all rear wheel diameter of ~25 inches.
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#18 Old 06-10-2012, 04:53 AM
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Electronic speed limits:

2.0T - 220 kph (~137mph)
3.8 - 260 kph (~157mph)

The speedometer will read higher as they are calibrated to read to bit high.

The relationship between horsepower and drag is a cubic so drag limits the top speed of any far more than anything else. That is why 100 hp yields small top speed differences.

The 5AT is geared to hit the speed limiter. Seriously, at those speeds getting pulled over is likely to get you cited with reckless driving and you may have your car impounded...or you will simply get killed and destroy a perfectly good car. I have not done such speeds since I was 20...in my Charger. I guess we all have to go through this rite. Be careful

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#19 Old 06-10-2012, 09:04 AM
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Quote:
Originally Posted by ninja3.8 View Post
I've done 155. I think I remember doing the math and the 2.0mt is gear limited to 157. I think thats what 'I came up with at least.
165mph, did the math in my previous post.

Specs on gear ratios and engine limits from HMAService.com
OE tire diameter: 26.67"
RPM Cutoff: 6450rpm

2010-12:
2.0T M/T: 165mph/264kph
2.0T A/T (4.1 rear end): 150mph/239kph
2.0T A/T (3.9 rear end): 157mph/251kph

3.8 M/T: 182mph/291kph
3.8 A/T: 199mph/318kph

2013:
2.0T M/T: 182mph/291kph
2.0T A/T: 217mph/347kph

3.8 M/T: 182mph/291kph
3.8 A/T: 217mph/347kph


/thread

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#20 Old 06-10-2012, 03:35 PM
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I see where you got the top speed from; the redline cutoff. Since the horsepower peak is around 6200 I would think the car might not want to go much above that. In the "old days" you simply floored it and when the car pulsed back forth that was the top speed. Either way, I am not likely to find out. A guy around here in a 3.8 R-Spec with an SFR tune hit 165 mph on his speedometer so he was likely doing over 160 mph. I am not sure he was topped-out, either. He did state the car felt solid and in control.

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