After the race see if you can set some MPG records. 
2.73 Rear with MN6
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,329
Likes: 8
From: Corpus Christi Tx.
2.73 Rear with MN6
I know it sounds crazy but Is it possible ? Will the rearend match up ? Looking at making the change to run the Texas Mile in October... What top end in 5th can I expect ??? Will this work on a 600 + HP supercharged LS2 ????
Let the education / discussion begin !
Let the education / discussion begin !
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,329
Likes: 8
From: Corpus Christi Tx.
figures
Here's the figures from a online calculator : 76 in first gear...
Will be testing some of these out at the Texas Mile OCTOBER 6.7, 2007
RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear
500 6 9 12 16 19 28
600 7 10 14 19 22 33
700 8 12 17 22 26 39
800 9 14 19 25 30 44
900 11 16 22 28 33 50
1000 12 17 24 31 37 56
1100 13 19 26 34 41 61
1200 14 21 29 37 44 67
1300 15 23 31 40 48 72
1400 16 24 34 44 52 78
1500 18 26 36 47 56 83
1600 19 28 38 50 59 89
1700 20 30 41 53 63 94
1800 21 31 43 56 67 100
1900 22 33 45 59 70 106
2000 23 35 48 62 74 111
2100 25 37 50 65 78 117
2200 26 38 53 68 81 122
2300 27 40 55 72 85 128
2400 28 42 57 75 89 133
2500 29 44 60 78 93 139
2600 30 45 62 81 96 144
2700 32 47 65 84 100 150
2800 33 49 67 87 104 156
2900 34 51 69 90 107 161
3000 35 52 72 93 111 167
3100 36 54 74 96 115 172
3200 37 56 77 100 119 178
3300 39 58 79 103 122 183
3400 40 59 81 106 126 189
3500 41 61 84 109 130 194
3600 42 63 86 112 133 200
3700 43 65 89 115 137 206
3800 44 66 91 118 141 211
3900 46 68 93 121 144 217
4000 47 70 96 124 148 222
4100 48 72 98 128 152 228
4200 49 73 101 131 156 233
4300 50 75 103 134 159 239
4400 51 77 105 137 163 244
4500 53 79 108 140 167 250
4600 54 80 110 143 170 256
4700 55 82 112 146 174 261
4800 56 84 115 149 178 267
4900 57 86 117 152 181 272
5000 58 87 120 156 185 278
5100 60 89 122 159 189 283
5200 61 91 124 162 193 289
5300 62 93 127 165 196 294
5400 63 94 129 168 200 300
5500 64 96 132 171 204 306
5600 66 98 134 174 207 311
5700 67 100 136 177 211 317
5800 68 101 139 180 215 322
5900 69 103 141 184 219 328
6000 70 105 144 187 222 333
6100 71 107 146 190 226 339
6200 73 108 148 193 230 344
6300 74 110 151 196 233 350
6400 75 112 153 199 237 356
6500 76 114 156 202 241 361
Axle ratio 2.73
Redline 6500
Will be testing some of these out at the Texas Mile OCTOBER 6.7, 2007
RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear
500 6 9 12 16 19 28
600 7 10 14 19 22 33
700 8 12 17 22 26 39
800 9 14 19 25 30 44
900 11 16 22 28 33 50
1000 12 17 24 31 37 56
1100 13 19 26 34 41 61
1200 14 21 29 37 44 67
1300 15 23 31 40 48 72
1400 16 24 34 44 52 78
1500 18 26 36 47 56 83
1600 19 28 38 50 59 89
1700 20 30 41 53 63 94
1800 21 31 43 56 67 100
1900 22 33 45 59 70 106
2000 23 35 48 62 74 111
2100 25 37 50 65 78 117
2200 26 38 53 68 81 122
2300 27 40 55 72 85 128
2400 28 42 57 75 89 133
2500 29 44 60 78 93 139
2600 30 45 62 81 96 144
2700 32 47 65 84 100 150
2800 33 49 67 87 104 156
2900 34 51 69 90 107 161
3000 35 52 72 93 111 167
3100 36 54 74 96 115 172
3200 37 56 77 100 119 178
3300 39 58 79 103 122 183
3400 40 59 81 106 126 189
3500 41 61 84 109 130 194
3600 42 63 86 112 133 200
3700 43 65 89 115 137 206
3800 44 66 91 118 141 211
3900 46 68 93 121 144 217
4000 47 70 96 124 148 222
4100 48 72 98 128 152 228
4200 49 73 101 131 156 233
4300 50 75 103 134 159 239
4400 51 77 105 137 163 244
4500 53 79 108 140 167 250
4600 54 80 110 143 170 256
4700 55 82 112 146 174 261
4800 56 84 115 149 178 267
4900 57 86 117 152 181 272
5000 58 87 120 156 185 278
5100 60 89 122 159 189 283
5200 61 91 124 162 193 289
5300 62 93 127 165 196 294
5400 63 94 129 168 200 300
5500 64 96 132 171 204 306
5600 66 98 134 174 207 311
5700 67 100 136 177 211 317
5800 68 101 139 180 215 322
5900 69 103 141 184 219 328
6000 70 105 144 187 222 333
6100 71 107 146 190 226 339
6200 73 108 148 193 230 344
6300 74 110 151 196 233 350
6400 75 112 153 199 237 356
6500 76 114 156 202 241 361
Axle ratio 2.73
Redline 6500
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
That would be sick I tell yeah sick! 
Your top speed will be incredible!
Let us know what you end up doing.
Thanks,Matt
Your top speed will be incredible!
Let us know what you end up doing.
Thanks,Matt
Le Mans Master
Joined: Feb 2007
Posts: 9,296
Likes: 1,531
From: Oviedo Florida
2024 C5 of the Year Finalist - Modified
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2023 C2 of the Year Finalist - Modified
2021 C2 of the Year Finalist - Modified
2016 C5 of Year Finalist
Here's the figures from a online calculator : 76 in first gear...
Will be testing some of these out at the Texas Mile OCTOBER 6.7, 2007
RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear
500 6 9 12 16 19 28
600 7 10 14 19 22 33
700 8 12 17 22 26 39
800 9 14 19 25 30 44
900 11 16 22 28 33 50
1000 12 17 24 31 37 56
1100 13 19 26 34 41 61
1200 14 21 29 37 44 67
1300 15 23 31 40 48 72
1400 16 24 34 44 52 78
1500 18 26 36 47 56 83
1600 19 28 38 50 59 89
1700 20 30 41 53 63 94
1800 21 31 43 56 67 100
1900 22 33 45 59 70 106
2000 23 35 48 62 74 111
2100 25 37 50 65 78 117
2200 26 38 53 68 81 122
2300 27 40 55 72 85 128
2400 28 42 57 75 89 133
2500 29 44 60 78 93 139
2600 30 45 62 81 96 144
2700 32 47 65 84 100 150
2800 33 49 67 87 104 156
2900 34 51 69 90 107 161
3000 35 52 72 93 111 167
3100 36 54 74 96 115 172
3200 37 56 77 100 119 178
3300 39 58 79 103 122 183
3400 40 59 81 106 126 189
3500 41 61 84 109 130 194
3600 42 63 86 112 133 200
3700 43 65 89 115 137 206
3800 44 66 91 118 141 211
3900 46 68 93 121 144 217
4000 47 70 96 124 148 222
4100 48 72 98 128 152 228
4200 49 73 101 131 156 233
4300 50 75 103 134 159 239
4400 51 77 105 137 163 244
4500 53 79 108 140 167 250
4600 54 80 110 143 170 256
4700 55 82 112 146 174 261
4800 56 84 115 149 178 267
4900 57 86 117 152 181 272
5000 58 87 120 156 185 278
5100 60 89 122 159 189 283
5200 61 91 124 162 193 289
5300 62 93 127 165 196 294
5400 63 94 129 168 200 300
5500 64 96 132 171 204 306
5600 66 98 134 174 207 311
5700 67 100 136 177 211 317
5800 68 101 139 180 215 322
5900 69 103 141 184 219 328
6000 70 105 144 187 222 333
6100 71 107 146 190 226 339
6200 73 108 148 193 230 344
6300 74 110 151 196 233 350
6400 75 112 153 199 237 356
6500 76 114 156 202 241 361
Axle ratio 2.73
Redline 6500
Will be testing some of these out at the Texas Mile OCTOBER 6.7, 2007
RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear
500 6 9 12 16 19 28
600 7 10 14 19 22 33
700 8 12 17 22 26 39
800 9 14 19 25 30 44
900 11 16 22 28 33 50
1000 12 17 24 31 37 56
1100 13 19 26 34 41 61
1200 14 21 29 37 44 67
1300 15 23 31 40 48 72
1400 16 24 34 44 52 78
1500 18 26 36 47 56 83
1600 19 28 38 50 59 89
1700 20 30 41 53 63 94
1800 21 31 43 56 67 100
1900 22 33 45 59 70 106
2000 23 35 48 62 74 111
2100 25 37 50 65 78 117
2200 26 38 53 68 81 122
2300 27 40 55 72 85 128
2400 28 42 57 75 89 133
2500 29 44 60 78 93 139
2600 30 45 62 81 96 144
2700 32 47 65 84 100 150
2800 33 49 67 87 104 156
2900 34 51 69 90 107 161
3000 35 52 72 93 111 167
3100 36 54 74 96 115 172
3200 37 56 77 100 119 178
3300 39 58 79 103 122 183
3400 40 59 81 106 126 189
3500 41 61 84 109 130 194
3600 42 63 86 112 133 200
3700 43 65 89 115 137 206
3800 44 66 91 118 141 211
3900 46 68 93 121 144 217
4000 47 70 96 124 148 222
4100 48 72 98 128 152 228
4200 49 73 101 131 156 233
4300 50 75 103 134 159 239
4400 51 77 105 137 163 244
4500 53 79 108 140 167 250
4600 54 80 110 143 170 256
4700 55 82 112 146 174 261
4800 56 84 115 149 178 267
4900 57 86 117 152 181 272
5000 58 87 120 156 185 278
5100 60 89 122 159 189 283
5200 61 91 124 162 193 289
5300 62 93 127 165 196 294
5400 63 94 129 168 200 300
5500 64 96 132 171 204 306
5600 66 98 134 174 207 311
5700 67 100 136 177 211 317
5800 68 101 139 180 215 322
5900 69 103 141 184 219 328
6000 70 105 144 187 222 333
6100 71 107 146 190 226 339
6200 73 108 148 193 230 344
6300 74 110 151 196 233 350
6400 75 112 153 199 237 356
6500 76 114 156 202 241 361
Axle ratio 2.73
Redline 6500
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,329
Likes: 8
From: Corpus Christi Tx.
Who Knows
Good question I am making 600 + HP with a maggie on a 402 Stroker, I have already done 200 mph with my 3.90 gears which was at 5000 rpm in 6th gear on a straight flat road in New Mexico... Took it up to EXACTLY 200 mph on the heads up one time just to see if I could do it. The trick is trying to reach 200 mph in a mile which is the goal. Thinking is with the HP and redlining in each gear might make it ????? Hoping that this setup will get me there but will see how it does in October at the Texas Mile...
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Safety Car
Joined: Mar 2006
Posts: 4,448
Likes: 4
From: Sarasota Florida
St. Jude Donor '06
I think you'd be better off going to a G-Force 5th/6th set (.80/.70 ratio) to make 6th gear useable. The car will accelerate better, as it will have much more optimal drops between gears. With a 3.42, 6200 in 6th would be 201.
Melting Slicks
Joined: May 2005
Posts: 3,461
Likes: 161
From: Las Vegas Nevada
St. Jude Donor '08
I don’t think it will raise your top end. Your car is drag limited (not enough HP). It will also slow your acceleration, so you may be slower in the mile.
Clayton from Las Vegas
Clayton from Las Vegas
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
The way the car is now (3.42) you can't redline in 6th. The air resistance becomes greater that the thrust available at the real wheels.
When looking at top end, too many people just accept the figures given on a slide-ruler. Then real life rears its ugly head and reminds us that mathematics -alone- doesn't mimmic the real world.
Race Director
Joined: Mar 2007
Posts: 18,308
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
exactly
The way the car is now (3.42) you can't redline in 6th. The air resistance becomes greater that the thrust available at the real wheels.
When looking at top end, too many people just accept the figures given on a slide-ruler. Then real life rears its ugly head and reminds us that mathematics -alone- doesn't mimmic the real world.
The way the car is now (3.42) you can't redline in 6th. The air resistance becomes greater that the thrust available at the real wheels.
When looking at top end, too many people just accept the figures given on a slide-ruler. Then real life rears its ugly head and reminds us that mathematics -alone- doesn't mimmic the real world.
, which it almost never is.In the end, Mike and LV Vette are right, since drag and tire rolling resistance increases so fast at those speeds, they overcome the engines capabilities for power. You may gain a few mph if you had an unlimited track. But since your limited to the mile, I don't think you'd see much of a difference.
Adding more power, however.......
Last edited by nj02vette; Jul 21, 2007 at 04:02 PM.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,329
Likes: 8
From: Corpus Christi Tx.
So you are saying the slower acceleration because of the 2.73 gears will actually slow my run during the mile even though I have 600 + HP ???????
Melting Slicks
Joined: May 2005
Posts: 3,461
Likes: 161
From: Las Vegas Nevada
St. Jude Donor '08
