Engine and/or Transmission? - Defender Source
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  #1  
Old March 17th, 2008, 02:49 PM
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Engine and/or Transmission?

This is what I have in my Forward Control 101:
2.5L NA Diesel + LT77 + LT230.


CAN I do this:
Defender 3.9L + Disco I automatic transmission + LT230

or

SHOULD I do this:
Defender 3.9L + LT77 + LT230.
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  #2  
Old March 17th, 2008, 03:10 PM
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Probably neither because the ZF auto and LT77 V8 are both much longer than the stock 101 LT95 or the 4 banger LT77
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Old March 17th, 2008, 03:13 PM
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Are the "4 banger LT77" and the "LT 77 V8" different? It currently has an LT77 in it (probably from an early MOD 90)
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  #4  
Old March 17th, 2008, 03:17 PM
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Yes, the V8 LT77 is much longer. 6-8in.
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  #5  
Old March 17th, 2008, 03:20 PM
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Greg,

Using the transfercase mounts as a reference point- do you have much room for a longer engine going forward ? Seems to me since most of these came with a v8 & lt95 you should be able to fit a v8 lt77 setup in there.
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Old March 17th, 2008, 03:22 PM
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The 101 FC Lt95 is much shorter than the one in a 110 or Range Rover.
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  #7  
Old March 17th, 2008, 03:24 PM
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Thanks for the help Ron.

So length is the issue.

But can I mate the 3.9L to the LT77 I have in the 101 now (assuming it is a 4 banger LT77).

And, can I mate the Defender 3.9L to the ZF auto from a Disco I?
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Old March 17th, 2008, 03:28 PM
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I think you can mate a short shaft four banger LT77 to a V8 by using a series V8 adaptor plate. If it were me, I would just source a 101 FC LT95. Roadside Rob has one I do believe. Have him regear it to range rover ratios.


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Old March 17th, 2008, 03:32 PM
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Quote:
Originally Posted by evilfij
I think you can mate a short shaft four banger LT77 to a V8 by using a series V8 adaptor plate. If it were me, I would just source a 101 FC LT95. Roadside Rob has one I do believe. Have him regear it to range rover ratios.


Ron
So then I would have the 3.9L + LT95 + LT230.

What would regearing it accomplish?
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  #10  
Old March 17th, 2008, 03:37 PM
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You would have a 3.9efi to LT95. Regearing makes your highway speed better.
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  #11  
Old March 17th, 2008, 03:45 PM
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I got it, the LT95 has the transfer case built-in.

Thanks for the help.

Follow-up Post:

What is the status of Roadside Rob? Where is he located?

He doesn't come around these parts much anymore.
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  #12  
Old March 17th, 2008, 04:14 PM
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I think you could make the auto box work without to much drama. I know I could. 4.2 would be better as well. And injected.


Or Chevy v-8 to 101 transmission. I have the adapter plate in stock. Have Rob build up his transmission/transfer case for it.

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  #13  
Old March 17th, 2008, 04:28 PM
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Seems like there are as many options as there are opinions.

I have access to a 3.9L so that will be the most convenient engine for me. Ultimately, I would like to run an automatic transmission and have found a ZF that is "close".

Nothing comes up for southwest rovers, the site looks like it is down.
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