kelleyperformance Posted December 31, 2007 Report Share Posted December 31, 2007 well i was bored and ran upon a site that had a formula for calculating several dimensions, so i got all my gear top end speeds @ redline. the results were quite entertaining, and even more convincing that i need to up my diff gears badly. all of these numbers are using my gear ratios, 32.6" tire, 3.73 rear diff gears.... 6th gear, 85 MPH : 1862 rpms @ Redline (6700 rpms): 1st : 58.7 MPH 2nd : 84.2 MPH 3rd : 121.9 MPH 4th : 174.3 MPH 5th : 207.5 MPH 6th : 305.8 MPH top speeds if i still had the 4L65e with all the same parameters as above: 4th gear, 85 mph : 2289 rpms @ 6000 rpms: 1st : 51 MPH 2nd : 95.7 MPH 3rd : 154.5 MPH 4th : 223 MPH assuming a stock SSS 2WD w/ 3.73: 4th gear, 85 mph : 2345 rpms @ 5600 rpms: 1st : 46.4 MPH @ 5400 rpms: 2nd : 84.1 MPH @ 5200 rpms: 3rd : 135.7 MPH @ 5600 rpms: 4th : 203 MPH Quote Link to comment Share on other sites More sharing options...
xlr82sxs Posted December 31, 2007 Report Share Posted December 31, 2007 nice work, nerd! Quote Link to comment Share on other sites More sharing options...
kelleyperformance Posted December 31, 2007 Author Report Share Posted December 31, 2007 ya how did i not see that coming lol Quote Link to comment Share on other sites More sharing options...
xlr82sxs Posted December 31, 2007 Report Share Posted December 31, 2007 (edited) ya how did i not see that coming lol no but honestly, there's some good info to be found on the net. someone was bound to do it.. Edited December 31, 2007 by xlr82sxs (see edit history) Quote Link to comment Share on other sites More sharing options...
BlackSS04 Posted December 31, 2007 Report Share Posted December 31, 2007 this is a great automotive calculator website : http://www.wallaceracing.com/Calculators.htm Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted December 31, 2007 Report Share Posted December 31, 2007 to bad my stock pcm limits top speed to 109 Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted December 31, 2007 Report Share Posted December 31, 2007 nice work John Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted December 31, 2007 Report Share Posted December 31, 2007 And to bad we drive an aerodymanically deficient 5500lb brick! Great numbers BTW. I wonder what our trucks could realistically do with the front end all duct tapped up? It would fry my trans/intercooler/radiator though...I bet we could get our trucks up to 175-180mph with fornt end work and lowering etc. I hit 120 in stride with my supercharger with plenty more to go it seems like, but the truck just becomes too unstable and the hood looks like it is going to fly off. Quote Link to comment Share on other sites More sharing options...
detjoe Posted December 31, 2007 Report Share Posted December 31, 2007 shifting into 4th @ 120 is fun...I like the feeling of it will keep going as long as I stand on the gas. Quote Link to comment Share on other sites More sharing options...
SSplaytoy Posted December 31, 2007 Report Share Posted December 31, 2007 Got mine to 152. I only know because my friend was in his vette next to me. But our trucks at that high of speed will make you shit yourself. But if you have a 2wd and have it 2 inches from the floor it probably won't be so bad. Quote Link to comment Share on other sites More sharing options...
xlr82sxs Posted December 31, 2007 Report Share Posted December 31, 2007 (edited) you guys are nuts.. i wouldn't ever want to go more than 120 in our trucks. they feel like a little kids power wheel after that.. Edited December 31, 2007 by xlr82sxs (see edit history) Quote Link to comment Share on other sites More sharing options...
SSplaytoy Posted December 31, 2007 Report Share Posted December 31, 2007 you guys are nuts.. i wouldn't ever want to go more than 120 in our trucks. they feel like a a little kids power wheel after that.. Yeah. It feels like the truck is floating or something. It is scarier than hell and mine is dropped. Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted December 31, 2007 Report Share Posted December 31, 2007 If its stock, it is floating...turbulence under the truck will actually lift it...thats why the closer to the ground you are the better. I read an article that to break the 200mph mark in a car, you need at least 500hp and a certain coef of drag sruface etc. They had a forumla to prep a genIII f-dboy with a big block 502 to go 200mph for under $10k and they did it at the salt flats. Quote Link to comment Share on other sites More sharing options...
BlkSSnCpt Posted December 31, 2007 Report Share Posted December 31, 2007 to bad my stock pcm limits top speed to 109 u sure about that??? -Rob Quote Link to comment Share on other sites More sharing options...
kelleyperformance Posted December 31, 2007 Author Report Share Posted December 31, 2007 Got mine to 152. I only know because my friend was in his vette next to me. But our trucks at that high of speed will make you shit yourself. But if you have a 2wd and have it 2 inches from the floor it probably won't be so bad. like me lol . i have topped third out and when i shifted to 4th i was very surprised that it was still pulling just as hard.... when i stopted (better not to mention the speed ) it was no where from done. when it was stock ride height and even just slightly lowered, with stock spec alignment and no bed cover, it was just plain scary at speeds barely over 100 Quote Link to comment Share on other sites More sharing options...
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