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Interesting P38 Range Rover

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I've been looking for a Range Rover with the Bosch/Thor engine as a donor for a MS project for my own P38. I came across one that the seller claims has a 5.0 TVR engine. However, the engine number is for a standard 4.6. This is not to say it isn't stroked and/or bored. For a 5.0 TVR I'd expect a standard 94mm bore but a 90mm crank. However, V8 Developments was apparently involved, so nothing is certain.

Problem is, the car is located near Glasgow. A bit far, even for us, to drive over for a quick look. I'm not even sure much could be learned about the engine without taking the heads off. And I certainly don't want to bring it back to than find out it's just a standard 4.6. I can find those cheaper and closer by.

If anyone as any suggestions, or if anyone is from the area and thinks he could learn something viewing the engine, I'd be eternally grateful (think beer tokens ;) ).

Greetz,

Filip 

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Get them to stick a tape measure/thin steel rule parallel to the cylinder wall down the plug hole and compare to some kind soul on here?

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We have a few cars that can be compared with, so yes that's definitely an option.

I'm thinking it'd have to be something flexible though? The plug hole is at a fair angle, I doubt a steel rule would reach the bottom before hitting the side?

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Length of welding rod down the bore, or just wooden dowel?

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If you've got the engine number and registration then give Ray/Rob a call at V8Dev, they may remember the vehicle or have records?

I saw the same P38 advertised and was semi tempted myself!

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I was thinking the same to measure the bore. I tried it on a 3.9 we have lying around yesterday, using the thin end of a caliper. Result was not exact but definitely close enough to tell the different cranks apart. But that still requires us to drive up there and check, or trust the seller to do the measurement. And it wont be that easy with the engine in the car.

Good suggestion about contacting V8Developments, you never know they keep records.

Thanks for all the suggestions guys!

Filip

 

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Given TVR's reputation it could just as likely be a 3.9 they've mis-labelled :ph34r:

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Yeah, that's why I want to be sure before driving a 1000km. ;-)

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Maybe post up asking if any local forumers in jockland could visit & take some photos / measurements?

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I took a kit car to V8 developments to have an engine built as a 5.0 for a friend and the paperwork he got back with it was very thorough and well presented, I'd be surprised if this engine didn't come with the same documentation and if they don't still have records, for warranty claims if nothing else.

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Am based in Scotland and in Glasgow fairly frequently so could be persuaded to go and look at a Range Rover lol

 

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Simon, that would be very kind of you!

Whatever paperwork there may have been, seems to have been lost between the different owners. I've contacted V8Developments, fingers crossed they still have something (and are willing to spend the time digging it up).

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PM me and we can talk about the details off the forum. I am always happy to look at a Range Rover always better when it is a but unusual.

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With some help from Simon, who had a good chat with the owner, I've made a deal on the car. :) Just need to see when we can get there.

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Oh.... Interesting !!!!

Congratulations on the buy - hope you're happy with it !!

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Hopefully, if we finally manage to get some conclusive evidence that it's a 5.0 and not a 4.6.

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I could only confirm a 80mm stroke. And that was consistently over 3 tries. 

Always pleased to help but unfortunately not the solution Filip was looking for. It was a very nice looking car though and if I was looking for a P38 certainly would be tempted.

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Thanks for the effort, Simon! Too bad it didn't work out :(

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Yeah, I spoke to soon I'm afraid... :-(

The original measurement was 90mm, which confirmed a TVR 5.0 crank in a standard 4.6 block. But upon measuring again and more accurately, it was only 80mm. Which is a low measurement even for a 4.6 (should be 82mm). So unfortunately no deal for me. On the up side, instead of being stripped for parts, the car stands a chance of being rebuild to its proper glory.

I've since learned that it's impossible to fit the TVR 90mm crank to a P38 V8, because TVR used the short nose crank with distributor and distributor driven oilpump. The GEMS/Bosch V8 have the oil pump directly on the crank, and need a long nose crank.

Already finalizing a different approach, I will get my 5.0 one way or another. ;-)

Filip

 

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Sounds like an interesting project. 

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