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Mach 1
Going to Steeda
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<blockquote data-quote="wurd2" data-source="post: 2177367" data-attributes="member: 15196"><p>ZincDude,</p><p></p><p>If you're going to be driving mostly on the street, then I would go with 4.10's instead of 4.30's. You'll be saving some gas and RPM on the highway, while still enjoying short gears and acceleration.</p><p></p><p>Here's something I posted over at Mach1Mustang.org:</p><p></p><p>When it comes to deciding between 4.10's and 4.30's for a street driven car, I would probably go with 4.10's. What I have yet to figure out is why some people describe the difference between 4.10's and 4.30's as being night and day. There is a 177 RPM difference in 1st gear, a 314 RPM difference in 2nd gear, a 311 RPM difference in 3rd gear, a 314 RPM difference in 4th gear, and a 324 RPM difference in 5th gear. Based on this information, I would think the difference between the two gear ratios cannot be as significant as often described.</p><p></p><p>Here's a chart of information I gathered from this <a href="http://www.allfordmustangs.com/Detailed/608.shtml" target="_blank">calculator</a>. This information only holds true if you have the stock Tremec transmission and you are running stock tire sizes (245/45/17). Note that this information also holds true for 315/35/17 tire sizes.</p><p></p><p><em>Assume your engine is at a constant 6800 RPM.</em></p><p></p><p><span style="font-family: 'Courier New'">_________________3.55's_________4.10's________4.30's</span></p><p><span style="font-family: 'Courier New'">1st Gear_____43.300 MPH_____37.490 MPH_____35.750 MPH</span></p><p><span style="font-family: 'Courier New'">2nd Gear_____73.180 MPH_____63.360 MPH_____60.415 MPH</span></p><p><span style="font-family: 'Courier New'">3rd Gear____110.880 MPH_____96.000 MPH_____91.540 MPH</span></p><p><span style="font-family: 'Courier New'">4th Gear____146.360 MPH____126.720 MPH____120.830 MPH</span></p><p><span style="font-family: 'Courier New'">5th Gear____236.070 MPH____204.400 MPH____194.900 MPH</span></p><p></p><p> :thumbsup:</p></blockquote><p></p>
[QUOTE="wurd2, post: 2177367, member: 15196"] ZincDude, If you're going to be driving mostly on the street, then I would go with 4.10's instead of 4.30's. You'll be saving some gas and RPM on the highway, while still enjoying short gears and acceleration. Here's something I posted over at Mach1Mustang.org: When it comes to deciding between 4.10's and 4.30's for a street driven car, I would probably go with 4.10's. What I have yet to figure out is why some people describe the difference between 4.10's and 4.30's as being night and day. There is a 177 RPM difference in 1st gear, a 314 RPM difference in 2nd gear, a 311 RPM difference in 3rd gear, a 314 RPM difference in 4th gear, and a 324 RPM difference in 5th gear. Based on this information, I would think the difference between the two gear ratios cannot be as significant as often described. Here's a chart of information I gathered from this [url=http://www.allfordmustangs.com/Detailed/608.shtml]calculator[/url]. This information only holds true if you have the stock Tremec transmission and you are running stock tire sizes (245/45/17). Note that this information also holds true for 315/35/17 tire sizes. [I]Assume your engine is at a constant 6800 RPM.[/I] [FONT=Courier New]_________________3.55's_________4.10's________4.30's 1st Gear_____43.300 MPH_____37.490 MPH_____35.750 MPH 2nd Gear_____73.180 MPH_____63.360 MPH_____60.415 MPH 3rd Gear____110.880 MPH_____96.000 MPH_____91.540 MPH 4th Gear____146.360 MPH____126.720 MPH____120.830 MPH 5th Gear____236.070 MPH____204.400 MPH____194.900 MPH[/FONT] :thumbsup: [/QUOTE]
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