![]() | Home > V8 > 3.5 to 3.9 - the long term re-engine thread |
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L110CDL Member Since: 31 Oct 2015 Location: Devon Posts: 10872 ![]() ![]() |
Nice, i hope we are going to have plenty of pic's of the progress please
![]() 1996 Golf Blue 300Tdi 110 Pick up. Keeper. |
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Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 205 ![]() ![]() ![]() |
Well, here's the first
The world's first X3 3.9 V8 hybrid..... ![]() Then comes the cleaning ![]() ![]() Click image to enlarge 90 V8 CSW - 1988 |
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muddypaws Member Since: 22 Jan 2013 Location: Leicestershire Posts: 122 ![]() ![]() ![]() |
I tried the hybrid route with a D3 - fitted in easily
![]() [img]https://www.defender2.net/gallery/albums/userpics/14272/normal_V8Con.bmp[/img] Richard Defender 90 SVX Last edited by muddypaws on 14th Sep 2020 8:31pm. Edited 1 time in total |
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Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 205 ![]() ![]() ![]() |
![]() The next question, assuming the block is good and sound - which cam? It's an improvement over the original low compression 3.5, but I don't want a standard 3.9 cam. It's used off-road so I don't want a rev hungry high lift cam - what's the best for low end torque? 90 V8 CSW - 1988 Last edited by Ranger 6 on 14th Sep 2020 8:33pm. Edited 1 time in total |
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muddypaws Member Since: 22 Jan 2013 Location: Leicestershire Posts: 122 ![]() ![]() ![]() |
'twas tricky getting it in/out without wrecking the headliner with the hoist! Richard
Defender 90 SVX |
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L110CDL Member Since: 31 Oct 2015 Location: Devon Posts: 10872 ![]() ![]() |
Thanks for the pic
![]() I'm no expert on engine building, but love watching them being rebuilt and i'm sure someone with the answer will be along soon ![]() 1996 Golf Blue 300Tdi 110 Pick up. Keeper. |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10383 ![]() ![]() |
Will you be running auto or manual?
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Avelingporter Member Since: 25 Jan 2016 Location: Southampton Posts: 406 ![]() ![]() ![]() |
Why don't you ask John Eales or RPi about the cam choices. They will have for sure been and done that with cams, so should be best placed to recommend a cam profile to suit what you are after.
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Huttopia Member Since: 23 Feb 2016 Location: West Midlands Posts: 1978 ![]() ![]() |
Quite a lot of cleaning by the looks of it! Was it set on fire?! ![]() Would it be possible to build it out to a 4.6 using Range Rover parts? |
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Lodelaner Member Since: 04 Feb 2010 Location: Lambourn Posts: 635 ![]() ![]() ![]() |
4.6 crank journals are larger than the 3.9/3.5, and amongst other things the front end is different so that's just a whole load more work. JB
@Lodelaner Instagram Youtube greenlaning and other LR related content |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10383 ![]() ![]() |
Be sure it is a 3.9, a mate had a 3.9 in his race buggy and after a few seasons he decided to rebuild it.. turned out it was a 3.5 with 3.9 plenum
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muddypaws Member Since: 22 Jan 2013 Location: Leicestershire Posts: 122 ![]() ![]() ![]() |
I used to live just down the road from John Eales; an extremely helpful chappie who knows everything about the RV8. He works from an old mill in Claybrooke that is a treasure trove of RV8 parts Richard Defender 90 SVX |
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Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 205 ![]() ![]() ![]() |
Neither am I - this will be the first, but after reading many threads I can drop words in like 'plastiguage' and other apparently technical stuff ![]()
Manual - it's (hopefully) going to be a straight swap for the 3.5 that the factory put in it
Already done - it came out of a Range Rover and has the little cut outs in the inlet ports where the injectors sit. The other part is the CR stampede in the block. See - that makes me sound like an expert! ![]() For the other questions - yes, cam - I've heard RPi can be a bit condescending when consulted for advice. I may try John Eales. No it's definitely not going to change capacity, this is a budget build and I'm really hoping there won't be any engineering costs other than a crack test and some skimming to true the block and heads 90 V8 CSW - 1988 |
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Shroppy Member Since: 25 Feb 2016 Location: Shropshire Posts: 866 ![]() ![]() ![]() |
You could speak to Roland at ACR (I know Greeni and others have had a good experience using him) re the cams if you can't get hold of John as I understand he's pretty well booked up at the moment.
I've found RPi and V8 Developments to be knowledgeable but pretty difficult to deal with, I purchased a GEMS manual flywheel from one of the guys at the latter last week only after his colleague tried to flog me the very same one for £100 more. 1985 127 V8 Build Thread Series 2 109" Series 1 80" |
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