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post #1 of 56 Old 10-30-2011, 08:25 AM Thread Starter
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Top speed.

I was just wondering what the fastest you guys have ever got these trucks up to. I know the speedo stops at 90 but what do you think these trucks top out at? Me I have never even got the needle to 90 mabey 85 passing.

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post #2 of 56 Old 10-30-2011, 09:37 AM
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Have sent the needle past the end many times, once trying to catch my girlfriends Mustang, never did catch her, but was gaining and she later said she was at 105.
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post #3 of 56 Old 10-30-2011, 09:50 AM
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I'd say about 105 or 110 is the limit without gearing changes. By 100 you're almost up to yellow. Idk how fast I was going (iphone gps and no service) but had it floored in 5th for about 3 miles across flat land.... felt like my truck was about to fall apart on me

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post #4 of 56 Old 10-30-2011, 10:09 AM
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Depends on the rear end gears. In my '95 with a ZF5 and 3.55 gears, at 3500 RPM, it'll do 135. Screaming, but she'll scoot.

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post #5 of 56 Old 10-30-2011, 10:56 AM
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I've seen a video on youtube of a bone stock 7.3 OBS doing like 120 or 130. It was pretty cool. I dont remember if it was gps verified or by another car or what.
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post #6 of 56 Old 10-30-2011, 11:10 AM
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I've had mine pegged real good with a load, let off it took a couple seconds to come off the peg, I'm only assuming 120 110

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post #7 of 56 Old 10-30-2011, 12:05 PM
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Quote:
Originally Posted by 66Bronco View Post
Depends on the rear end gears. In my '95 with a ZF5 and 3.55 gears, at 3500 RPM, it'll do 135. Screaming, but she'll scoot.
how was that verified? I've got 3.55 gears and i was told we were going 110 close to yellow

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post #8 of 56 Old 10-30-2011, 12:09 PM
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Had my OBS at 105 or 110 my SD with 38s I had at 135ish very unsafe but hey I just bought it.

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post #9 of 56 Old 10-30-2011, 01:14 PM Thread Starter
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At 85 mines running like 2300-2400 rpms? I think not positrve but that seems about rigt when I'm passing.

Switched to the dark side, not turning back for awhile, if ever.
97 ext. cab long bed XLT
245,000miles and hoping it stays problem free.
Mods- Secrets
Cosmetics-smoked lights,18" XD monsters, 35" pro comps, Add a leaf
New truck
03, Quad cab, short bed, SLT, CumminGs, 6speed, done up all the way around.
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post #10 of 56 Old 10-30-2011, 02:51 PM
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Quote:
Originally Posted by OBS>SD View Post
At 85 mines running like 2300-2400 rpms? I think not positrve but that seems about rigt when I'm passing.
you must have 3.55s. mine is at 2500 RPM at 75 with 4.10s. personally I dont feel too safe after about 85 in a 7500lb truck

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There u go Tom. John may not be sexy, but he can tutor you, lol.
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