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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58  
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Hi mates. Just thinking ahead and wondering if anybody has experience with these engines http://www.nav-international.com.br/site.aspx/Vehicular
They look quite appealing to me, specially the 4.3H being mechanical (the only thing is its almost twice as heavy as the puma engine) but they have options that weigh the same. Transmission-wise can it be possible? Cheers Mack |
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20th Nov 2014 5:08am |
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| Stue5 Member Since: 06 Jul 2014 Location: Marche Posts: 111  
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Earlier this year I saw a 90 getting fitted with a Cummins 6BT
 the plan was for the truck engine and gearbox to be installed as one and mated at the transfer box. The engine is found in quite a lot of 7.5t truck over here. Lots of tuning bits in the US. There are a few 6bt defenders on YouTube. Here is a photo of Aaron's 90( taken from his posts)
http://s66.photobucket.com/user/aaronmorri...5.jpg.html Range Rover p38 4.6 99 lpg(gone  ) |
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20th Nov 2014 7:00am |
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| Stue5 Member Since: 06 Jul 2014 Location: Marche Posts: 111
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Here is Aaron's build thread = http://www.landyzone.co.uk/lz/f7/aarons-90...47956.html
I think some toyota's had a 4BT cummins(may be wrong), here is a Australian mod defender with the 4bt cummins (even though it says Isuzu)= http://www.milweb.net/webvert/73010 Hope you get some other ideas thrown your way  Range Rover p38 4.6 99 lpg(gone ) |
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20th Nov 2014 8:03pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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That Cummins 4BT got my attention, taking in mind the job has already been done! I like its mechanical (no ECU) and I can also get Cummins here (a little more expensive than International). I believed the 3.9 was an Isuzu engine, until today.
Which one would you go for Stu? Cheers Mack |
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20th Nov 2014 8:28pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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Noticed on tthe thread they said tje strongest gearbox fitted on a Defender was the LT. I thought it was the six speed on the Puma, considering it is used on many other vehicles with lots more power. How much can the 6 speed take?
Cheers Mack |
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20th Nov 2014 8:39pm |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456  
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Officially around 500nm they fit that gearbox to the mustang whitch producers 5-600hp but it's torque that breaks them as I have found out 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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20th Nov 2014 10:03pm |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3346 
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Ohh thats a dangerous page to look at. Lots of grunt available.
If you do go ahead with the swap please put some photos up! Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197 Self confessed mileage hunter  |
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20th Nov 2014 11:17pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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500 nm sounds pretty good to me. 450nm would make me more than happy! If the 360nm (according to LR) in the Puma does the job, 450nm should be impressive!
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21st Nov 2014 8:09am |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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Thats right shaggydog, it makes one want to go crazy! Its not something Im planning in the near future Im just doing some research for when my Puma dies and needs replacement and those Inter engines blow my mind
Cheers Mack |
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21st Nov 2014 8:13am |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456
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get it remapped then and you will know what 450 is like simples and far cheaper than any engine conversion steve 2015 2.2 tdci hardtop xs 3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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21st Nov 2014 9:30am |
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| Stue5 Member Since: 06 Jul 2014 Location: Marche Posts: 111
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If I could have a 6bt in my 110 I would, but that is only a pipe dream for me
 . But it is not impossible and fitting it into a 90 shows that brilliantly. I will have to be happy(which I am ) with my 5 cylinders. Range Rover p38 4.6 99 lpg(gone ) |
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22nd Nov 2014 10:29pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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Steve with such mods, will the engine see its lifespan considerably reduced ?
To source a Puma here is overpriced (in my opinion 12k usd is an abuse), so I was thinking for when my Puma eventually dies I would replace it with an engine with a little more displacement so it would be under stressed and last longer. Cheers Mack |
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28th Nov 2014 4:36pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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Stue a 6bt would be living a dream, I was also considering the 4bt (taking in mind engine weight) as it has already been done many times (so I was told in the thread). Cummins still manufactures them for non highway applications so getting parts for a rebuild on a road engine should be easy. Also those International from the link I posted will do pretty good. Probably they would be expensive to take to the UE, just as it is expensive to bring the Puma here.
Cheers Mack |
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28th Nov 2014 4:41pm |
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| Mack Member Since: 11 Jan 2014 Location: Central America Posts: 58
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*you mentioned the 4bt Stue, my apologies!
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28th Nov 2014 4:45pm |
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