C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Manual trans conversion?

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Old Jul 24, 2013 | 10:14 PM
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Default Manual trans conversion?

I did a quick search but didn't find anything, is there a thread or threads on doing a manual trans swap on an auto c4(pre 91)
Thanks
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Old Jul 24, 2013 | 10:30 PM
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Originally Posted by brucewp
is there a thread or threads on doing a manual trans swap on an auto
http://members.cisdi.com/~anesthes/zf6/

Most don't recommend a swap to the early C4 DNE4+3 trans worthwhile

The T56 from a F-Body is another alternative involving more work
http://forums.corvetteforum.com/1551084186-post1.html
http://forums.corvetteforum.com/1550783015-post66.html
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Old Jul 25, 2013 | 04:19 AM
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...and you'll need to change the EPROM in your ECM.
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Old Jul 25, 2013 | 09:15 AM
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Yes, have your memcal reprogrammed with a 1989 manual trans file by a competent programmer.
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Old Jul 25, 2013 | 11:57 AM
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Any particular reason why you want to do this? Maybe selling it and getting a manual might be easier?
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Old Jul 26, 2013 | 11:07 PM
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The car is is the shop getting the trans rebuilt, with a couple upgrades and shift kit.
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Old Jul 27, 2013 | 11:32 AM
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You are way better off just selling your car and getting a stick, because no matter how nice of a job you do the car is still hacked.

< you can buy my car and you won't have to convert yours.
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Old Jul 27, 2013 | 10:16 PM
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Originally Posted by bob guzzy
You are way better off just selling your car and getting a stick, because no matter how nice of a job you do the car is still hacked.

< you can buy my car and you won't have to convert yours.
I was just curious what all was involved, if the work is quality I don't agree that it's hacked, I'm doing the car the way I want to enjoy it, not a restoration. But upon looking into the manual swap it was just way to involved, so it's already at the trans shop getting the auto rebuilt.
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Old Jul 27, 2013 | 11:59 PM
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Originally Posted by brucewp
I was just curious what all was involved, if the work is quality I don't agree that it's hacked, I'm doing the car the way I want to enjoy it, not a restoration. But upon looking into the manual swap it was just way to involved, so it's already at the trans shop getting the auto rebuilt.
Reason he thinks it is hacked is that it usually ends up that way. VERY few people will go the extra mile unless time and money are no object to you or you do it yourself. Most of these auto to manual or manual to auto swaps are done much cheaper by selling what you have than to pay someone to do it right, assuming you do find that someone. That is, unless that car is something that special to you or you are trying to get something in that wasn't meant to be.

I put a C4 trans into a Merkur XR4TI and it was a PITA getting the C4 and the bellhousing and making a trans mount for it.
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