06-28-2013, 11:37 AM | #15 |
Drives: something faster than you Join Date: Aug 2010
Location: where dem hoes be
Posts: 315
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What do you mean by topend? 170+ or 120?
Tighter gears will help acceleration throughout the powerband, so the only reason they suck at higher speeds is because the force you into the overdrive gearing quicker which slows you down. If for example a 4.10 geared car is at 140mph and is forced into 5th while a 3.73 geared car is still in 4th, the latter car will be faster from that point on. But up until that 140 mark, the former car will be faster because it will have more torque multiplication. So it all matters in what you consider top end. |
06-28-2013, 05:07 PM | #16 | |
Drives: 2SS/RS - Black - GFX Join Date: Nov 2008
Location: B'ham, Alabama
Posts: 2,458
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Quote:
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Ordered: 10-13-08
Built: 3-30-09 (#1691) Recieved: 6-12-09 Blacked out, Cammed (Lunati Voodoo 233/245, .578/.598 @114°, +4°), ARH LTs, VR OTR CAI, Cutouts, and lots of other fun mods. |
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06-28-2013, 05:49 PM | #17 | |
Drives: 1994 1LE / 2006 Z51 Corvette Join Date: Jul 2009
Location: Plano, TX
Posts: 2,829
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Quote:
Completely agree.... If you are looking for a all out top speed running car you have to figure out how much power you have, and how much power it will take to push the car to that speed. Not only gears, but aero drag, lift, rolling resistance, mechanical HP loss....all take play in what the car can actually do. You could put 2.73's in the car and have a theoretical top end of like 325 mph or something in 6th gear....but it would probably take 2500 hp to push the car to that speed given the car's stock weight and body. You would like to see the car reach top speed in just a slight overdrive...so in these cars 5th would be the better gear to top out in, since it is going to take even more power to push the car in 6th...most slow down in 6th given the ratio's (look at the ZR1 Corvette...they changed the trans ratio's so it would top in 6th). Then you have to figure air conditions for that day, wind speed, altitude of where you are running....if you wanted to get right down to what the car would actually do, not just on paper. |
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