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View Full Version : Will tunning stop top speed of140mph



2009blueg8gt
01-13-2009, 05:31 PM
cause yesterday i was flooring it down i20 in dallas and my car shut off at 140mph so will it fix that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

SRG963
01-13-2009, 05:32 PM
Yes, my top speed is set at 225 MPH. I try to keep her below half that tho.

160+ is pushing it without any suspension help, but it can be done with a tune only.

The Commodore
01-13-2009, 10:30 PM
My personal limit is around 120.

jbradsh1
01-14-2009, 05:43 AM
cause yesterday i was flooring it down i20 in dallas and my car shut off at 140mph so will it fix that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mine has no limit now after the tune, but I imagine you can have it set at whatever speed you like. Try a buck sixty!

99-LS1-SS
01-14-2009, 05:53 AM
My limit is what it will do in the 1/4 mile. But, to answer your questions, yes you can adjust your top speed limiter with a tune.

2009blueg8gt
01-14-2009, 08:01 AM
ok thanks thursday is the big day,

bigwillys58
02-11-2009, 08:29 PM
cause yesterday i was flooring it down i20 in dallas and my car shut off at 140mph so will it fix that!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
140??? wait a mnat. mine was set at 127mph...

wreckwriter
02-11-2009, 08:31 PM
137 is stock.

Ktlplxm
02-12-2009, 06:48 AM
Yes, my top speed is set at 225 MPH. I try to keep her below half that tho.

160+ is pushing it without any suspension help, but it can be done with a tune only.

He's right. Thing start to get a little "dicey" much above that. My personal best with an GPS-based recorder was 181 and I do not want to do it again without major suspension and brake work

MANOFSTEEL69
02-12-2009, 07:08 AM
140??? wait a mnat. mine was set at 127mph...
Yea mine was also set there. Not sure why some are different, unless the dealer changes it for some insurance reason.154 is fastest I've had mine.
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chiller2484
02-12-2009, 08:03 AM
difference between the 08 and 09?

foreosu
02-12-2009, 08:24 AM
128 is my current land speed record. I doubt I'll ever top that unless at a private track of some sort. The car was great / very solid - it was the possibility of Johnny Law that has me not wanting to break the record.

Slizzo
02-12-2009, 12:23 PM
128 is my current land speed record. I doubt I'll ever top that unless at a private track of some sort. The car was great / very solid - it was the possibility of Johnny Law that has me not wanting to break the record.

Speaking of that, are there any air fields that one can use to test out the limits of their car cheaply? I'd like a nice 1 mile stretch of airstrip to drive my car around on..

Blackdevil77
02-12-2009, 01:01 PM
My personal best with an GPS-based recorder was 181 and I do not want to do it again without major suspension and brake work

What the hell??? Holy shit! What did you have done to the car besides a tune when you did this, where and how long did it take to get there? That's insane!

Slizzo
02-12-2009, 01:04 PM
What the hell??? Holy shit! What did you have done to the car besides a tune when you did this, where and how long did it take to get there? That's insane!

Take a look at his sig, he's got a 427 hiding under there... :devil:

Blackdevil77
02-12-2009, 01:16 PM
whats 427?

KaiserM715
02-12-2009, 01:49 PM
Speaking of that, are there any air fields that one can use to test out the limits of their car cheaply? I'd like a nice 1 mile stretch of airstrip to drive my car around on..

Not sure what the cost is, but they are having an event in March.

http://www.forum.grrrr8.net/showthread.php?t=3445

norm8332
02-12-2009, 01:52 PM
What the hell??? Holy shit! What did you have done to the car besides a tune when you did this, where and how long did it take to get there? That's insane!

+1

Slizzo
02-12-2009, 03:17 PM
whats 427?

427ci GM (http://www.hotrod.com/featuredvehicles/hrdp_0802w_2008_corvette_427_limited_edition/photo_02.html)

Not exactly the same as what he's got in his car, as this is the LS7, but you get the idea.


The Vette LS7 is 7.0L which works out roughly to 427ci.


And thanks Kaiser, but Texas is too much of a haul for me.. I'm thinking like something in New England, preferably within my own state of Connecticut that I can take a day trip out to and run the car.

Featherburner
02-12-2009, 04:18 PM
Speaking of that, are there any air fields that one can use to test out the limits of their car cheaply? I'd like a nice 1 mile stretch of airstrip to drive my car around on..This one is a little closer than Texas. http://freiburgersjunkyard.com/blog/...-for-2009.html

MtbDoc
02-15-2009, 01:09 PM
Unfortunately, few of us want to put in a roll cage for such an event. I would LOVE to take my GTO to one of these (or the G8, for that matter)...but I have NO interest in doing something like that to these cars. Now, if I EVER get around to building my '65 2+2 Mustang, that car will have a full road course type cage.

jeppsG8
02-16-2009, 06:06 PM
Bring 'em out here to Utah. We can run 'em on the salt as fast as you dare. Not sure of the cost, and it's hell on the paint. But it's legal and officially timed.

Rick Maddux
03-22-2009, 04:43 PM
I just got back from a trip to AZ and although I would never admit to speeding, but based on my calculations, top speed for my 09G8GT is 139! LOL All stock at this time.

PerfectD3
03-29-2009, 01:55 PM
My personal best is 162, but that was on my bike on the A60 (Autobahn in Mid-East Germany). 101 so far in the G8.

Ageranger
03-30-2009, 09:54 AM
heh fastest ive ever been in my own car was 146 in my e36 325i also on a60 headin to bitburg from spangdahlem. Fastest ever tho was friends srt4 @178 on a1 from frankfurt. g8 fastest prolly 100 :( nowhere round here to get it up too many cops in this tourist town.

'02 ws6
04-01-2009, 07:38 AM
My personal best is 162, but that was on my bike on the A60 (Autobahn in Mid-East Germany). 101 so far in the G8.

My best is 162 as well, and also on a bike - my '04 636.

Fastest in the G8 to date is the usual 139, damn limiter.
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Larry GT
04-05-2009, 01:29 PM
California tends to frown on stuff like that, and other things too. My personal limit is my wallet.

09gtt
04-11-2009, 08:39 PM
had my g8 to 166 didn't even realize it then I looked down and almost shit.