Top speed
07-17-2003, 09:11 AM
#46
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Join Date: Feb 2002
Location: Decatur, AL
Posts: 699
The discussion ..... I believe.... was about a stock car. I could be remembering wrong....but there is a good bit of difference between headers and no headers....especially higher rpm's. Atleast that is how my car reacted to headers.
Joe
Joe
07-17-2003, 10:12 AM
#47
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Join Date: Apr 2000
Location: Tulsa
Posts: 1,208
I've seen speeds listed anywhere from 155mph on a camaroz28 to 163mph on a TA. Couple of the test tested the TA with lights down, one got 163, the other got 161, then they did lights up and one was 159 and the other 157...4mph both times cause of headlights. They tested a Z28 too and got 159mph out of it.
07-17-2003, 10:25 AM
#48
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Join Date: Feb 2002
Location: Decatur, AL
Posts: 699
That is pretty good...I didn't know they were that fast stock. Was that for 6 speed? I don't think my auto (with stock gears) would have gone that fast....but maybe I just let out too soon and i'm not dumb enough to try it now.
Joe
Joe
07-17-2003, 10:29 AM
#49
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Join Date: Apr 2000
Location: Tulsa
Posts: 1,208
The TA's that went 161 and 163, and the Z that went 159 were all six speeds. Highest test I remember for an auto was 157, I believe. They're pretty dang fast, with headers, cat back and an exhaust they can pull a little harder...the limiting factor is there just isn't enough power in 5th gear at 5400-5500 rpms to pull any more and not near enough power to pull 6th gear.
07-17-2003, 10:37 AM
#51
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Join Date: Apr 2000
Location: Tulsa
Posts: 1,208
Originally posted by ibanez6rg
lol... We'll believe one guy about top speed runs when he posts, but not the other!!!
lol... We'll believe one guy about top speed runs when he posts, but not the other!!!
07-17-2003, 10:55 AM
#53
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Join Date: Jul 2000
Location: Norfolk, VA. USA
Posts: 1,880
For what its' worth, everyone I know with a 4th gen and z rated tires had 163mph speed limiters. They just upped it to 255 with the HPP3.
I am shooting for the 200mph mark with my 86 Trans Am within the next few years.
I am shooting for the 200mph mark with my 86 Trans Am within the next few years.
07-17-2003, 12:18 PM
#55
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Join Date: Jan 2003
Location: West Coast
Posts: 408
California?? 20miles straight? Desert?? Night? two lane?? sooo that was you who made the six 360* turns after I passed you by that night huh??
This was in about 95. Ever been to Barstow?
07-17-2003, 02:12 PM
#56
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Join Date: May 2003
Location: Lexington, KY
Posts: 409
i know this thread is about a stock z28 or ta but i have this one video of a twin turbo ta and i these two guys claimed 180 and the video was mainly on the speedo the whole time and that speedo flew and pegged the needle in no time and they kept going for like 10 seconds and then they slowed down. im sure you guys have seen it. heck its probably a guy on here i jsut didnt know who ti was but it was awesome 180 on the interstate can you believe that man in a ta!! thats bad a$$!
07-17-2003, 02:53 PM
#58
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Join Date: May 1999
Location: flomaton, alabama, USA
Posts: 19
Top Speed
LT1's with 155 mph speedometer, which came with z rated tires, have a 255 speed limiter, LS1's in 98 came out with a 163 mph speed limiter, I just read it in the car and driver magazine where they tested the new LS1 in a white 98 trans am and it did 163 limited by the computer. Hope this solves it for everyone. Thanks Also Car and Driver feb of 93 results for the 6 speed formula vs 5 speed cobra vs 6 speed z28 top speed results are:1994 Formula: 152
Cobra: 137
Z28 : 154
Feb 99 Car and Driver Results Z28: 158 (WHAT HAPPENNED TO 163)
MUSTANG GT: 138
Dec 93 Car and Driver Results Z28: 156
Mustang GT: 137
Cobra: 137
Z28 : 154
Feb 99 Car and Driver Results Z28: 158 (WHAT HAPPENNED TO 163)
MUSTANG GT: 138
Dec 93 Car and Driver Results Z28: 156
Mustang GT: 137
07-17-2003, 03:39 PM
#59
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Join Date: Apr 2000
Location: Tulsa
Posts: 1,208
Re: Top Speed
Originally posted by Dale 94 TA GT
LT1's with 155 mph speedometer, which came with z rated tires, have a 255 speed limiter, LS1's in 98 came out with a 163 mph speed limiter, I just read it in the car and driver magazine where they tested the new LS1 in a white 98 trans am and it did 163 limited by the computer. Hope this solves it for everyone. Thanks Also Car and Driver feb of 93 results for the 6 speed formula vs 5 speed cobra vs 6 speed z28 top speed results are:1994 Formula: 152
Cobra: 137
Z28 : 154
Feb 99 Car and Driver Results Z28: 158 (WHAT HAPPENNED TO 163)
MUSTANG GT: 138
Dec 93 Car and Driver Results Z28: 156
Mustang GT: 137
LT1's with 155 mph speedometer, which came with z rated tires, have a 255 speed limiter, LS1's in 98 came out with a 163 mph speed limiter, I just read it in the car and driver magazine where they tested the new LS1 in a white 98 trans am and it did 163 limited by the computer. Hope this solves it for everyone. Thanks Also Car and Driver feb of 93 results for the 6 speed formula vs 5 speed cobra vs 6 speed z28 top speed results are:1994 Formula: 152
Cobra: 137
Z28 : 154
Feb 99 Car and Driver Results Z28: 158 (WHAT HAPPENNED TO 163)
MUSTANG GT: 138
Dec 93 Car and Driver Results Z28: 156
Mustang GT: 137
Magazines inconsistancies crack me up...thats where I get most of my info from too on things like top speed and braking since there's not a real effect way to evaluate it in the real world...I just pulled out the issue you're talking about and compared with other LT1 tests there's a 10mph difference, thats pretty big if you ask me.
07-17-2003, 09:00 PM
#60
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Join Date: Jul 2003
Location: Hawaii
Posts: 1,103
Barstow!!!! thats exactly what I was thinking about!!! Yep I have been there many times when I used to drive to las Vegas on weekends!!
Dude dont you like that long stretch they have after you go past the mountain? By the way. How come I did never see a police officer out there?? was it just luck?
ohhh and by the way I did so many max speed runs out there... (on my 89 Escort GT)
Marvin
Dude dont you like that long stretch they have after you go past the mountain? By the way. How come I did never see a police officer out there?? was it just luck?
ohhh and by the way I did so many max speed runs out there... (on my 89 Escort GT)
Marvin