Top Speed
Launching!
Joined: Nov 2001
Posts: 245
Likes: 0
From: Over There!
Re: Top Speed I think the PCM has a fuel-cutoff programmed at 165. Many people here have gone well in excess of 160 MPH. I'm not one of 'em, but I have been upwards of 145 in stock trim. <img src="images/icons/grin.gif" border="0"> Most bone-stock F-bodies will do 145+ easily. <img src="images/icons/smile.gif" border="0">
Re: Top Speed Speed limiter is between 158-161 on F-bodies.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Teching In
Joined: Nov 2001
Posts: 1
Likes: 0
From: Houston, TX
Re: Top Speed I have had my 2001 Z28 6-speed up to exactly 160MPH, verified by a GPS reciever that was updating every 9 feet. It was still pulling slowly and I bet it would have hit the rev limiter in 5th gear. I picked a bad night to do this on because the road I was on was really foggy and at 160 I couldn't see anything in time even to think about stopping. Oh yeah, I did this when the car had about 2200 miles on it and it was ALL STOCK. The problem you will face when passing about 165MPH is that you will have to shift to 6th gear. If you have stock gearing. Once you are in 6th gear the engine will not be in the power band enough to keep you at that speed, much less accelerate you any faster.
[ November 21, 2001: Message edited by: mike400hp ]</p>
[ November 21, 2001: Message edited by: mike400hp ]</p>
Trending Topics
Staging Lane
Joined: Nov 2001
Posts: 88
Likes: 0
From: Nutley NJ
Re: Top Speed rev limiter in 5th is NICE!!!!!!!!!!!!!!!
I been htere once..never again
was good as hell..I have the hiccups now.
later
Chris
Edited for language. <img src="images/icons/smile.gif" border="0">
[ November 22, 2001: Message edited by: Colonel ]</p>
I been htere once..never again
was good as hell..I have the hiccups now.
later
Chris
Edited for language. <img src="images/icons/smile.gif" border="0">
[ November 22, 2001: Message edited by: Colonel ]</p>
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Re: Top Speed I've been 151, once, before 4.10's, don't know what it'd do now, but I have a suspicion that it might actually pull in 6th gear now. I think close to 165 would be a good estimate. Maybe an update soon.....
Taco
Taco
Teching In
Joined: Nov 2001
Posts: 23
Likes: 0
From: Tijuana, Mexico
Re: Top Speed No you won't pull 6th. Not even with 4:10's.
Matter of fact, 4:10's are the worst possible gears for max MPH. You will hit the rev limiter in 5th at ~152. Then bog into 6th and lose speed. 3:73 is the optimum gear for stock engined cars for peak MPH. Easily hit the limiter.
Speed limiter is 162mph, confirmed by Chevy, and tested on a dyno. It does fuel shutoff much like the rev limiter. Some cars have 118mph, depending on options.
Stock engined/gears cars don't really need the limiter, as the gearing won't get into the peak.
You'll hear people saying their stock car will hit the limiter easily. They are full of ****.
Matter of fact, 4:10's are the worst possible gears for max MPH. You will hit the rev limiter in 5th at ~152. Then bog into 6th and lose speed. 3:73 is the optimum gear for stock engined cars for peak MPH. Easily hit the limiter.
Speed limiter is 162mph, confirmed by Chevy, and tested on a dyno. It does fuel shutoff much like the rev limiter. Some cars have 118mph, depending on options.
Stock engined/gears cars don't really need the limiter, as the gearing won't get into the peak.
You'll hear people saying their stock car will hit the limiter easily. They are full of ****.
Re: Top Speed I have hit mine many times.. stock form also... check my site out for pics and video....... Not all stock Z's can pull that speed, cause not all Z's come with Z rated tires.......
www.99taws6.f2s.com
www.99taws6.f2s.com
Re: Top Speed 99taws6, you are stationed in germany right? Thats so awsome that you can top that beast out on the 'bahn <img src="images/icons/grin.gif" border="0"> Great vid too.
I believe the six speed cars can do 160 stock. I have been 145 in a stock A4 ta, and it had more left in it. The firebird ram-air is good for like 1lb of boost at that speed. Maybe even more.
<img src="images/icons/wink.gif" border="0">
I believe the six speed cars can do 160 stock. I have been 145 in a stock A4 ta, and it had more left in it. The firebird ram-air is good for like 1lb of boost at that speed. Maybe even more.
<img src="images/icons/wink.gif" border="0">
Re: Top Speed [quote]Originally posted by 99taws6:
...and TNT before I leave...<hr></blockquote>
<img src="images/icons/grin.gif" border="0">
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
...and TNT before I leave...<hr></blockquote>
<img src="images/icons/grin.gif" border="0">
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
Re: Top Speed I am curious to see if anyone here has a 98+ Fbody with the 200mph speedo and/or they've hit 200mph
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
TECH Regular
Joined: Nov 2001
Posts: 438
Likes: 0
From: Istanbul
Re: Top Speed [quote]Originally posted by Matt B:
<strong>Is there any reason a stock Z28 shouldn't be able to go 150+ mph? Is there any kinda of speed regulation? Thanks,
Matt</strong><hr></blockquote>
180 somethink over here <img src="images/icons/wink.gif" border="0">
<strong>Is there any reason a stock Z28 shouldn't be able to go 150+ mph? Is there any kinda of speed regulation? Thanks,
Matt</strong><hr></blockquote>
180 somethink over here <img src="images/icons/wink.gif" border="0">
Re: Top Speed [quote]Originally posted by CamaroSS_2002:
<strong>I am curious to see if anyone here has a 98+ Fbody with the 200mph speedo and/or they've hit 200mph
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" /> </strong><hr></blockquote>
My friend Jessie has one in his car.. We are both installing TNT kits right now.. When we get it done we will do a autobahn run or 2... We both have full suspensions so it should handle ok..... I will keep everyone posted....
<strong>I am curious to see if anyone here has a 98+ Fbody with the 200mph speedo and/or they've hit 200mph
<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" /> </strong><hr></blockquote>
My friend Jessie has one in his car.. We are both installing TNT kits right now.. When we get it done we will do a autobahn run or 2... We both have full suspensions so it should handle ok..... I will keep everyone posted....
Launching!
Joined: Nov 2001
Posts: 207
Likes: 0
From: ABILENE TX
Re: Top Speed I have hit the Rev Limit in 5th a few times <img src="graemlins/fluffy.gif" border="0" alt="[Fluffy]" /> ,I would love to know what the actual speed at that point is ?
SS/LS
[quote]Originally posted by Matt B:
<strong>Is there any reason a stock Z28 shouldn't be able to go 150+ mph? Is there any kinda of speed regulation? Thanks,
Matt</strong><hr></blockquote>
SS/LS
[quote]Originally posted by Matt B:
<strong>Is there any reason a stock Z28 shouldn't be able to go 150+ mph? Is there any kinda of speed regulation? Thanks,
Matt</strong><hr></blockquote>
