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#1
02-20-2002, 09:53 PM
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I'm new here so bear with me .{what are those Msg.icons}
My car is a 70 Tempest , 455 ,6X'8 hds.,TH400 with shift kit ,2.78 open rear , 750 Edel carb. Est. 382HP 456#torque . I have a 70 Tempest & a 70 Lemans rear . The tempest rear in the car is a 2.78 open rear. It ran 14.146 best 1/4 time .I'm doing a frame swap to the lemans frame and might use the Lemans 3.08 open rear .Both are from 70's but are coded as 69 GTO rears , both are 10 bolt /open . 1st ? .. are these both 8.2 BOP rears or 8.5 ?? 2nd ? .. can both be swaped to 3.23 3rd ? .. can they be swaped to 3.55 4th ? ..how much 1/4 time will be seen going from the 2.78 to 3.08 ?? 5th ? ..how much 1/4 time going from 2.78 to 3.23? 6th ? .. How much MPG diffenece with these make. If I go to 3.23 it will be a limited slip. I know this is alot to ask , but I really need to make an informed decision.. Thanks in advance,,, Andy |
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#2
02-20-2002, 09:53 PM
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I'm new here so bear with me .{what are those Msg.icons}
My car is a 70 Tempest , 455 ,6X'8 hds.,TH400 with shift kit ,2.78 open rear , 750 Edel carb. Est. 382HP 456#torque . I have a 70 Tempest & a 70 Lemans rear . The tempest rear in the car is a 2.78 open rear. It ran 14.146 best 1/4 time .I'm doing a frame swap to the lemans frame and might use the Lemans 3.08 open rear .Both are from 70's but are coded as 69 GTO rears , both are 10 bolt /open . 1st ? .. are these both 8.2 BOP rears or 8.5 ?? 2nd ? .. can both be swaped to 3.23 3rd ? .. can they be swaped to 3.55 4th ? ..how much 1/4 time will be seen going from the 2.78 to 3.08 ?? 5th ? ..how much 1/4 time going from 2.78 to 3.23? 6th ? .. How much MPG diffenece with these make. If I go to 3.23 it will be a limited slip. I know this is alot to ask , but I really need to make an informed decision.. Thanks in advance,,, Andy |
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#3
02-20-2002, 11:45 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by temp pest:
1st ? .. are these both 8.2 BOP rears or 8.5 ?? Yes they are 8.2 2nd ? .. can both be swaped to 3.23 Yes 3rd ? .. can they be swaped to 3.55 Yes, with a ring gear spacer. 4th ? ..how much 1/4 time will be seen going from the 2.78 to 3.08 ?? Don't know 5th ? ..how much 1/4 time going from 2.78 to 3.23? Don't know 6th ? .. How much MPG diffenece with these make. MPG will drop if you go from a 2.78 to a 3.23 If I go to 3.23 it will be a limited slip. Go with the 3.23 if it is a limited slip, you won't be sorry <HR></BLOCKQUOTE>
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