LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 Guys post your top speed truthfully

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Old 10-25-2010, 03:00 PM
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Default lt1 Guys post your top speed truthfully

Alright brohans check this out i have long tubes no cats open, cold air intake, bbk underdrive, pulley walbro fuel pump and other mods. I have a four speed automatic trans. Now i maxed out my top speed at 132 i mean red lined at fourth gear and all the juices squized out!!!!!. Now i heard of autos doing 150 155+++++. Uh please guys don say it rev limiter because in fourth the needle is passed 6200 rpms and stock its supposed to be around 5800 5900 rpms so is it possible i have smaller gear inside the rear end when i bought it.
Old 10-25-2010, 03:05 PM
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Sounds like you were in 3rd gear.
Old 10-25-2010, 03:07 PM
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You may have a 93 or 94 im geussing? Some of them (non GT's) had top speed limiters of around 130mph because they didn't come with Z rated tires. They usually came with 130mph speedo too if I remember correctly.

93 and 94 where the only year the "GT" package was offered (firebirds only, not sure if the camaro had an equivilent?), it came standard on all 95-97 V8 models, which had a 155mph speedo...

I've personally had my car past the 155 mark down near the volt meter, graphs suggest around 167mph with the A4/stock rev limiter/ 3.23 gears, If I remember correctly.
Old 10-25-2010, 03:34 PM
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108, lol. Stupid governor... I was barely into when it hit.
Old 10-25-2010, 03:42 PM
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i had a 94 trans am black with 120 speedometer due to no z rated tires option. my poor blakie i crashed him my first car =(. R.I.P BLACKIE. Now i have another trans am yay but i still miss my first car =(.
here is my blackie http://s210.photobucket.com/albums/b...oMoto04401.jpg
Old 10-25-2010, 03:45 PM
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So are you on the autobahn or racing someone to 150?
Old 10-25-2010, 04:15 PM
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this car - 98.7mph

old Z28 - 135-ish

older GTA - 140ish

older i get, slower i go. only give it hell at the drag strip.
Old 10-25-2010, 04:24 PM
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145 recorded by my garmin gps as the top speed haha, car seemed to be still pulling but i backed off. Car is a 95 z28 at the time it had shorty headers through an x pipe and cai
Old 10-25-2010, 04:57 PM
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135 topped out 4th gear and went a little bit into 5th before i let out in my 96 6 speed Firebird formula. 4th gear topped out at 130mph.
Old 10-25-2010, 05:03 PM
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On my previous 95 Z28 A4 with 3.23 gears, intake and catback I did 146mph racing a GTP, still had lot more but I let off.
Old 10-25-2010, 05:16 PM
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Stock 97 WS6 pegged speedo in 4th
Stock 94 Formula same.
Old 10-25-2010, 05:17 PM
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Originally Posted by MasterTomos
93 and 94 where the only year the "GT" package was offered (firebirds only, not sure if the camaro had an equivilent?), it came standard on all 95-97 V8 models, which had a 155mph speedo...
94 was the year for the T/A GT.
Old 10-25-2010, 05:39 PM
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i got my car to 155 bone stock, it's an m6 though with 3:42 gears.
Old 10-25-2010, 05:41 PM
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I forgot , my 93 T/A also could peg the speedo when it was stock (auto) in 4th gear.
Old 10-25-2010, 05:47 PM
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Good question for me. I havent pegged it with the new rearend. 4:30 gears with an M6.
Old 10-25-2010, 06:21 PM
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185 mph in my v6 mustang
Old 10-25-2010, 06:24 PM
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95 Z28 with auto and 3.23...did 160mph..(that what the scanner said)
Old 10-25-2010, 06:25 PM
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Originally Posted by 94ss06gxp
185 mph in my v6 mustang
how long did it take you to get there?
Old 10-25-2010, 06:53 PM
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Truthfully? The speedometer ran out of room before I lifted my right foot. So I couldn't tell you.

Thanks GM, first a weak rear axle, and then a speedometer that can't read out the top speed of the car.
Old 10-25-2010, 07:06 PM
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'95 Z28 A4 3.23 with SS ram air setup, catback, and no cat - passed 150 speedo...guessing 155 or so. been there a dozen times.


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