What is your top speed? Post your MPH and Setup!

[cory d]

man i am lame! 2.73 gears and i dont think i have ever been over 3,000 rpm in third

[INSIDIOUS '86]

Originally Posted by cory d

man i am lame! 2.73 gears and i dont think i have ever been over 3,000 rpm in third

Should get the more " aerodynamic" 80s front end lol or some 308s
Posted via Mobile Device

[cory d]

i would like 3.08. and maybe 275/60 on the back and not monster truck 255/70's. keeping it round eye though.

[silversnail86]

Mine has 2.73s and 275/60s, LOVE IT. Course' I got a 3.76 first gear. effin perfect!! And 5th is .72 rocks a whoppin 1800 rpms at 75mph.

[motornut]

78 4X4 -350-350,..............90 mph,maybe more, not looking down after 90 lol
79 4X2 -305-350-3.4 rear...100 mph

[ivorton74]

had mine up to 75 once or twice...74 longbed 2wd, stock 350/th350...not sure of the gear ratio but im guessin 3:08...235/75/15 tires on rallies

[Skunksmash]

I'm not willing to go my top speed and find out. I've got 2.73;s and a 700R4. Only willing to go about 85 before the front end starts floating around. Turning about 1,850 RPM. Truck could probably go much faster, before it lost traction and wrecked.

[silversnail86]

Mine has all new front end parts, good alignment and tires rated at 112 not quite 126, but It doesn't start to float til around 115.

[wraprail]

161 in my Cadillac. 5th gear 6400 rpm

http://youtu.be/eYoKLjphnyA
Posted via Mobile Device

[silversnail86]

That's cheatin Wrap!!

[shipma2]

70 with 3.73 gears in a worn out gm 12 bolt rear that needs to be replaced along with the speedometer cable

[Rich84]

My front end has new parts, shocks and springs all around are new. ..What is it that makes it feel like the front end is floating off the pavement at about 85mph..Tires??
Don't really enjoy that feeling very much.

[INSIDIOUS '86]

Originally Posted by Rich84

My front end has new parts, shocks and springs all around are new. ..What is it that makes it feel like the front end is floating off the pavement at about 85mph..Tires??
Don't really enjoy that feeling very much.

Ever seen pictures of a sonic boom? The pressure wave?
Our trucks push litteraly a wall of air like that pushes the truck up and a lot of turbulence and suction on the back behind the tailgate. Takes a lot of power to push these trucks through the air at speeds over 120 if you look at a lot of newer cars the bottoms are flat and underneath our trucks we have a nice resivior in the back bumper and under the bed for air to drag and get caught in.
Posted via Mobile Device

[83GMCK2500]

Pushed mine to 4,000 RPM in 4th for a few miles, don't remember what tires I had at the time, somewhere between 90-95MPH.

[Rich84]

If it feels like that at 85-90, I would hate to see what it feels like over 100...

[Redcap]

80mph tops. I don't even like to twist the 454 up that tight.

[Skunksmash]

Originally Posted by Rich84

My front end has new parts, shocks and springs all around are new. ..What is it that makes it feel like the front end is floating off the pavement at about 85mph..Tires??
Don't really enjoy that feeling very much.

Sway bar makes it go away.

[piecesparts]

How about something simple as an airdam on the front. When I run mine withuot one, it feels so much different than when I have one on.

[Tdubbyount]

90 mph on a good day fresh 350 with RV cam, sm465, 4:10s, on brand new 35" pro comps
Posted via Mobile Device

[86c20]

350sm465 3.42 gears with stock size tires I no it goes 125. Raced my buddy in his jetta cupe. Still had alittle more left but not much. Started to foalt around 110ish. My diesel in my sig is good to 91 with 285 75 16 on it.
Posted via Mobile Device

[bigblock73]

Originally Posted by Hazieview

I love all the responces!

The main reason I asked this question is because I kind of thought one more thing was unusual...

Why would you need a 160mph Speedometer and a 10,000rpm tach in a square body? I would understand if you had a blower or raced all the time but with my sb400 I can't turn more than 6000 rpms without banging it out. I have .308 gears and a 350th trani so hitting 160mph isn't very likely to say the least.

I'm thinking 120mph max speedometer and a 8,000 rpm max would be just fine. I say 8,000 because it is hard to find a 7000rpm in 5" for a good price.

Thanks for the replies guys! Can anybody run 160mph and 10000rpms? That something I would love to see!

I understand this is an old post, but. Had, to comment on this.

Many of us who have 160 speedos and 10k tachs do because that is what the aftermarket manufacturers offer, simple as that. I'll take that option over the factory bouncing speedo and fuel gauge where the tach would be if the truck had one originally.

Besides, most engines don't see 8k either...watch out on that high horse.
Posted via Mobile Device

[bigblock73]

When my truck was small block powered, it ran 14.6 @ 92 in the 1/4...which was as fast as I had it. Now that is is big block powered, hoping to see 12's @ 105 or so...we'll see.
Posted via Mobile Device

[Rich84]

Originally Posted by Skunksmash

Sway bar makes it go away.

Originally Posted by piecesparts

How about something simple as an airdam on the front. When I run mine withuot one, it feels so much different than when I have one on.

Maybe that explains it...I don't have either.