LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

top speed

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Old Apr 2, 2004 | 09:44 AM
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lantern's97Z's Avatar
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From: northeast pennsylvania
top speed

Anyone have an idea what the top speed is our machines? (stock)
Old Apr 2, 2004 | 09:52 AM
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re1080's Avatar
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im almost positve its around 160
Old Apr 2, 2004 | 09:55 AM
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Yeah it's around 155-160. It really all depends on what transmission and gears your car came with from the factory (I'd say). But it's somewhere around 160.
Old Apr 2, 2004 | 10:43 AM
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In 1994, car and driver(i think) tested the 95' z28 m6 with 3.42 gears and read a drag limited 156mph in 5th gear. it also depends if you have z rated tires or not, i think verts are limited at somewhere around 100 because of government standards
Old Apr 2, 2004 | 10:49 AM
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Hey lantern’s97Z,

I see that you are fairly new to the board, so please don’t take this the wrong way, just to a search. This topic gets discussed about once a week.
Old Apr 2, 2004 | 11:25 AM
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6spds are like 150-160 mph..... A4's from the factory cut off at like 110-115mph, but with a little programming the top speed can be raised... thats what i heard

hey zx1216 -im not sure on the convertable issue, i think a 6spd vert will hit 150...how is there anyway to regulate that if the car is gonna be modded or whatnot...

with 4:10's my buddy toped his car out at 135...and got there in no time
Old Apr 2, 2004 | 11:32 AM
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A4's don't necessarily cut off at 110. Like zx1216 said it depends on if the car came with the z-rated tire package or not. Cars that came with the z-rated package had a 150 mph speedo and no limiter. Cars that didn't have the package came with a 110 speedo and cut off at like 110 or 115mph, regardless of tranny.
Old Apr 2, 2004 | 11:43 AM
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Last week I think we had a good on on this.


6 speed or auto with factory z rated tires is very capable of pegging out your speedo at the 160 mark. Enough to hurt yourself so be careful.


Yes some 2:73 autos did get a 110 speedo with crappy tires. Yes you reprogram these..


Hope this helps
Old Apr 2, 2004 | 12:30 PM
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just curious here, anyone know the top speed of a mustang GT...i kno they r slow but they do have a top speed at some point.

im talkin like a 96-03 5spd or auto with 4.6 motor

was the 5.0 any different
Old Apr 2, 2004 | 03:06 PM
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I read one time that the A4's with 3:23 actually had a higher top end (159-161) than the M6's in 5th 157-158. This was back in 96-97.
Old Apr 2, 2004 | 03:32 PM
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From: NY...what a bad place for a nice car
i think the stock mustangs with 4.6 at 260 hp topped out at about 140-150 somthing like that everywhere u read its different

still slow but i believe they were leaning more toward acceleration and 1/4 mile times than top speed....but the old 5.0 were slow anyways lol

EDIT: is it true that a stock 2003 Mach 1 with the 305 hp can really pull a 1.7 60 foot and a 13.1x 1/4 mile time...i read a review on them and dont believe the numbers i think its bull

also this is a camaro site so im not expecting much answers

Last edited by CamaroSS30thAnn; Apr 2, 2004 at 03:34 PM.
Old Apr 2, 2004 | 04:01 PM
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what will a 500rwhp TA with 3.42s top out at? just curious
Old Apr 2, 2004 | 04:11 PM
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I had a 93 auto T/A 3.23 rear could peg the 150 mph speedo, my 97 could as well (auto 3.23)
Old Apr 2, 2004 | 04:17 PM
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The real question is...has anyone ever been to 160 mph in their car? I may be attempting a top speed run soon...any sarcasm limited advice would be helpful.
Old Apr 2, 2004 | 04:21 PM
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From: NY...what a bad place for a nice car
i hit 130 i would have liked to hit 160 but at top end the lt1 are bad and i was on the thruway and trucks were comign up fast.
yeah it was dumb and after thinking about it i knew it was but tahts what happen when u give a noobie a fast car (happened lat year )



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