[Z06] Top Speeds per gear?
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 31,860
Likes: 3
From: Waiting for a flight Trying a Peaceful State of Mind
Cruise-In II Veteran
St. Jude Donor '15
Top Speeds per gear?
So what are they?
1St 42?
2nd 93?
3rd 103?
4th 120?
5th 140?
6th 3124?
Who knows.. Thanks.. to whomsoever knows the actuals.. :cheers: :cheers:
1St 42?
2nd 93?
3rd 103?
4th 120?
5th 140?
6th 3124?
Who knows.. Thanks.. to whomsoever knows the actuals.. :cheers: :cheers:
Melting Slicks
Joined: Jun 2000
Posts: 2,221
Likes: 0
From: Los Angeles CA
Re: Top Speeds per gear? (Afy)
MPH@6500 RPM w/ 295/35 18 tires and 3.42 rear:
<ul>
<li>50 mph 1st Gear
<li>71 mph 2nd Gear
<li>103 mph 3rd Gear
<li>148 mph 4th Gear
<li>176 mph 5th Gear
<li>264 mph 6th Gear
</ul>
-Adam
[Modified by Adam Bruce, 1:41 AM 4/8/2002]
<ul>
<li>50 mph 1st Gear
<li>71 mph 2nd Gear
<li>103 mph 3rd Gear
<li>148 mph 4th Gear
<li>176 mph 5th Gear
<li>264 mph 6th Gear
</ul>
-Adam
[Modified by Adam Bruce, 1:41 AM 4/8/2002]
Melting Slicks
Joined: Feb 2001
Posts: 2,243
Likes: 1
From: Ooltewah TN
Re: Top Speeds per gear? (Afy)
Here's what I've seen racing...they are estimates because in SCCA Class T1, we can run 17" rear wheels...and I'm normally looking at the tach to shift, but the speeds are pretty close.
2d - 70 (never maxed out 2d...shift at 6200).
3d - 105
4th - 145-150
5th - I've seen 160, but it should go to 175
6th - slower than that (it's too high for top end running)
I'll give you an update on 5th gear after I get back from Daytona's SCCA National. I'm guessing I'll see somewhere around 165 or so. I saw 160 consistently at Charlotte, and Daytona is faster.
I sell the videos of these tracks and races for $10 each if any is interested in seeing these speeds in anger! :D
2d - 70 (never maxed out 2d...shift at 6200).
3d - 105
4th - 145-150
5th - I've seen 160, but it should go to 175
6th - slower than that (it's too high for top end running)
I'll give you an update on 5th gear after I get back from Daytona's SCCA National. I'm guessing I'll see somewhere around 165 or so. I saw 160 consistently at Charlotte, and Daytona is faster.
I sell the videos of these tracks and races for $10 each if any is interested in seeing these speeds in anger! :D
Melting Slicks
Joined: Jun 2000
Posts: 2,221
Likes: 0
From: Los Angeles CA
Re: Top Speeds per gear? (Hutch)
Er... perhaps you should add "theoretical" in there, Adam. Little things like wind resistance and such not withstanding. :D
Oh, I guess I should add that If you're spinning your tires you might not be traveling at the MPH your speedo says, but I figured that went without saying ;)
Racer
Joined: Mar 2002
Posts: 355
Likes: 0
From: Germantown WI
Re: Top Speeds per gear? (Afy)
Top Speed for the ZO6 with all the limiters deleted would be roughly 185 mph.
Check out these great links for the calculations!
http://home.earthlink.net/~jonaa/topspeed.html
http://home.earthlink.net/~jonaa/LS1new.xls
Check out these great links for the calculations!
http://home.earthlink.net/~jonaa/topspeed.html
http://home.earthlink.net/~jonaa/LS1new.xls
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Burning Brakes
Joined: Oct 2000
Posts: 1,094
Likes: 2
From: Seattle suburb wa
Re: Top Speeds per gear? (Adam Bruce)
MPH@6500 RPM w/ 295/35 18 tires and 3.42 rear:
<snip>
-Adam
<snip>
-Adam
here are my (slightly more accurate :) ) numbers
at 6500, red line
<ul>
<li>48.55 mph 1st Gear
<li>69.65 mph 2nd Gear
<li>100.83 mph 3rd Gear
<li>144.18 mph 4th Gear
<li>171.65 mph 5th Gear
</ul>
at 6600, rev limit
<ul>
<li>49.29 mph 1st Gear
<li>70.73 mph 2nd Gear
<li>102.38 mph 3rd Gear
<li>146.40 mph 4th Gear
<li>174.29 mph 5th Gear
</ul>
these, of course, are for a car on new tires, at factory pressure :)
also, with a recent car wash, but no Zaino!
Melting Slicks
Joined: Jun 2000
Posts: 2,221
Likes: 0
From: Los Angeles CA
Re: Top Speeds per gear? (no cure)
these, of course, are for a car on new tires, at factory pressure :)
also, with a recent car wash, but no Zaino!
also, with a recent car wash, but no Zaino!
-adam
Safety Car
Joined: Aug 1999
Posts: 4,353
Likes: 252
From: Minnesota
Re: Top Speeds per gear? (Adam Bruce)
5th at 6600 was an indicated 177 in my car. I've been there 3 times. The speedo was checked at 100 mph against a gps and they both indicated 100 mph. My car will not do over 70 in 2nd or 100 in 3rd at the rev limiter at least as shown on the speedo. I suppose there could be some speedo delay and it could be actually traveling a bit faster than indicated. :chevy
Racer
Joined: Mar 2002
Posts: 355
Likes: 0
From: Germantown WI
Re: Top Speeds per gear? (no cure)
there are no limiters.
Drifting
Joined: Jul 2000
Posts: 1,289
Likes: 0
From: Newport Beach, CA, USA
Re: Top Speeds per gear? (no cure)
What happened to my post to No Cure about top speed? Did the Powers that be delete it?
My questions were if No Cure could calculate the top speed of my Z with:
1. SAE 502rwhp/491rwtrq (through mufflers and cats on 91 octane)?
2. SAE 485rwhp/485rwtrq (cammed down for great idle and smog)?
I have stock tires and stock 3.42 gears.
Even though I probably will never hit this, I am very curious. On the fastest road courses I have been on so far (Willow Springs), the fastest cars are hitting about 160mph at the end of the front straight. I have not had the new motor on the track yet.
Thanks in advance!
My questions were if No Cure could calculate the top speed of my Z with:
1. SAE 502rwhp/491rwtrq (through mufflers and cats on 91 octane)?
2. SAE 485rwhp/485rwtrq (cammed down for great idle and smog)?
I have stock tires and stock 3.42 gears.
Even though I probably will never hit this, I am very curious. On the fastest road courses I have been on so far (Willow Springs), the fastest cars are hitting about 160mph at the end of the front straight. I have not had the new motor on the track yet.
Thanks in advance!
Burning Brakes
Joined: Oct 2000
Posts: 1,094
Likes: 2
From: Seattle suburb wa
Re: Top Speeds per gear? (Mako)
my first response was to say "hmmm, that's odd, must be a glitch in the ubb software or sumtin", except, we're both space cowboys :)
see http://forums.corvetteforum.com/zerothread?id=276785
[Modified by no cure, 11:32 PM 4/11/2002]
see http://forums.corvetteforum.com/zerothread?id=276785
[Modified by no cure, 11:32 PM 4/11/2002]
Melting Slicks
Joined: Jun 2000
Posts: 2,221
Likes: 0
From: Los Angeles CA
Re: Top Speeds per gear? (Mako)
Mako,
You have to know more than just the peak HP/Trq number in order to compute the top speed. You have to have the actual dyno graph to see the power@RPM. The reason being that let's say you have a 450 RWHP@6000 RPM car. However, you're geared with stock gears so you redline in 5th gear at 171 mph. Now you shift to 6th gear, but the revs drop so low that you do not have the full 450 RWHP to leverage. See my point?
You have to know more than just the peak HP/Trq number in order to compute the top speed. You have to have the actual dyno graph to see the power@RPM. The reason being that let's say you have a 450 RWHP@6000 RPM car. However, you're geared with stock gears so you redline in 5th gear at 171 mph. Now you shift to 6th gear, but the revs drop so low that you do not have the full 450 RWHP to leverage. See my point?
Racer
Joined: Jan 2002
Posts: 300
Likes: 0
From: Baton Rouge la
Re: Top Speeds per gear? (Adam Bruce)
6600 RPM's in 5th is 175. I weigh 240lbs and if that is slowing my car down 2 miles then I wont biggie size for 2-3 months. Did that speed several times and check out http://www.racingfreaks.net for the videos
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Re: Top Speeds per gear? (TX405Z06)
6600 RPM's in 5th is 175. I weigh 240lbs and if that is slowing my car down 2 miles then I wont biggie size for 2-3 months.
