Speed @ 3,900rpm in OD ?

I was wondering if anyone could tell me How Fast I am Running @ 3,900 rpm in overdrive :nutz: with stock gears and Stock Height tires on a 2000 Silverado extended cab with a 5.3 ? I will hopefully find Out Soon When I take My truck To Allen, But Till Then, I am Curious...., if the Numbers Dont seem right then its probably time For Junkyard Trans # 3! :grr:

Transmission Ratios:
1st: 3.06 2nd: 1.63 3rd: 1 4th: 0.7

Tire Diameter 1: 30 inches
Rear Gear Ratio 1: 3.42:1
MPH
RPM 1st 2nd 3rd 4th
1000 8 15 25 36
1500 12 23 38 54
2000 16 31 50 72
2500 20 38 63 89
3000 25 46 75 107
3500 29 54 88 125
4000 33 61 100 143

Thanks For the Info, That Sounds about right... I am guessin 130ish, W00t!

Really hard to tell since some of it depends on how much your tires balloon out at high speeds. You're pushing a dangerous limit on stock tires at 130 mph. We still like you and would like to keep you here a while longer so please, get some speed rated tires for running that fast. Stock tires aren't rated for over 90 mph. I see you said stock height. Hopefully you have some tires safe for those speeds.

Quote:

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Originally posted by RedHeartbeat@Mar 28 2005, 11:21 AM
Really hard to tell since some of it depends on how much your tires balloon out at high speeds. You're pushing a dangerous limit on stock tires at 130 mph. We still like you and would like to keep you here a while longer so please, get some speed rated tires for running that fast. Stock tires aren't rated for over 90 mph. I see you said stock height. Hopefully you have some tires safe for those speeds.

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What he said, I think that's why i blew one out last weekend doing 80. It was a good thing it was in the rear. Oh yea try 4600 in OD. :lol:

thats why i bought my 305/50/20 goodyear gt2's...i can go alot quicker and not worry bout it :lol:

What would 285/75/16 be rated at?

Chris

Thanks For The Concern, The Thought of a Rear Blowout With My Stepside Bed Mortifies me!!!,I do Have A Nice Wheel Tire Combo 275/60HR17's, But one Of the Rims is Bent and Discontinued, SOOO @ The Moment I am Running Ell Cheapo 255/70 LT16 Remington Wide Brute A/W 111 speed rating(they Were Free) On Cheap Factory Sized aftermaket Alloys.. I run sustained(hour-2hr+) Triple Digits every weekend Going From FT Sill Ok to Mexico And/or a Border Town Fairly Close To S.A.(585.37miles in 8-6.45 hrs Depending on Austin traffic!).. Event Free So Far, And yes They Baloon out, The Center is wearing Out kindof Rapidly.. Was Thinking Of Going With Bridgestone Dueler H/P 265/70HR16's,Can Someone Suggest A Better Tire This size or 255/70???, Also, Is There An aftermarket Speedo That Will Accurately Display My Speed?, Or am I limited to the Denali or Escalade Cluster?