 | Home > My Defender > Puma to LT1/8L90 Restomod |
 
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230   
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Here are my notes for fitting the RW's 8L90 to LT230 adapter.
the gearbox has an unused mount in the way that needs to be cut off.  Click image to enlarge It will then need to be ground down until there is enough clearance for the TC allen screws Click image to enlarge One of the TC bolts needs to be removed and replaced with a countersunk machine screw (Provided with the RW's kit) so that the TC clears the trans sump. Click image to enlarge apart from the above was all quite smooth sailing Click image to enlarge Click image to enlarge Been a bit of a mission getting all the parts together for mounting this lot, I'm now only missing one part, this one Click image to enlarge The part number for this is ANR4698 or ANR2821, RW's do make one but I'd like to find one in the UK so I don’t have to wait, any ideas...I'm also told the same part was used on early Discos and RRC's...anyone got one... |
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20th Jun 2021 9:30am |
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| Philip Member Since: 09 Mar 2018 Location: England Posts: 510
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Could try somewhere like LRR in Greenwich for a used one.
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20th Jun 2021 11:21am |
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230
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Hi Col,
Happy to share any of my very limited knowledge or my experiences.
There is a separate trans TCU which is provided as part of the Turnkey package and comes with the shifter lever including a tap shift button. Click image to enlarge Click image to enlarge Click image to enlarge The Turnkey package does not included for any integration of the Puma electronics, for that I'm using Martin at Futuranet who has been brilliant so far and is integrating TPS and adding ABS, TC and AC to a basic Puma. He is also working on a separate display for all the engine info and a gear indicator. I'm sure Martin will read this and reply directly with what he's doing for this build as his explanation will be much better than mine.
Here is a really good video on the differences between the gen3/4 LS3 and gen 5 LT1 My decision to go LT1 was after I had a long conversation with Nick at RW-ENG.COM who has built a business around the manufacture of parts for these type of conversions and had no commercial interest either way. He told me that the LS3 was soon to be obsolete and many of the professional modding companies were changing or had already changed to the LT1/8L90 platform. On the basis that this was going to take me a least two years (possibly 3) I didn’t want to spend this time, to find, at the end that I produced something fantastic but with old hat tech with the market having moved to the LT1. Also more HP and torque, more importantly more torque was available much lower down the rev range, which should make for better drivability. After moving from the Manual trans I considered the 6/8/10 speed autos, the 6 speed had been very popular but would now be considered old tech (imho) the 8 speed was getting some good reviews and seemed to be the recommendation of builders stateside, the 10 speed seemed to be used in a few high spec builds but did have some negative press around reliability. There are plenty of providers in the states that will build an engine/trans/electronics package to your spec, I chose Turnkey because they had provided a lot of packages specifically for Defenders.
I've found the whole experience with all suppliers (UK and US) very disappointing with emails ignored and telephone calls not returned the only companies to have been responsive are Futuranet and On-air Suspension. You will have to chase the US suppliers if you want any info, Turnkey have still not responded to an email from 6 weeks ago. My decision to buy from the states was an easy one as none of the UK suppliers had any stock and could not tell me when they would. But even if there was stock in the UK I'd probably go with Turnkey as I had more confidence that they knew defenders and provided a 500+ HP turnkey solution. I really don’t mind talking about costs as this will be useful info to anyone thinking of doing this conversion. The turnkey package was £17K with another £4K of duty and VAT. When I look at everything Turnkey provided which I would have still needed to buy (O2 sensors, Fuel PR, Adapters, tap shifter, exhaust headers, etc etc...) I feel the difference in cost would be around the £1-1.5k mark, a saving easily spent by buying wrong parts. I'm not sure what your plans are for chassis (renew or reuse) but what ever you do mounts will need some serious reasearch, I'm still not 100% confident that this package will fit with my mounting arrangeemnt, but I'll soon find out Thanks for your interest and I hope this answers some of your questions. Paul |
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21st Jun 2021 8:55am |
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| JOW240725 Member Since: 04 May 2015 Location: Suffolk Posts: 7905 
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Fascinating thread, great work and great sharing of information!
 I can only dream but still thoroughly interesting to follow.  James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641 MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557 Instagram @suffolk_rovers |
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21st Jun 2021 9:40am |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3674 
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Thanks Paul, that’s great detail. I’m planning on using my chassis as it’s in good condition. I am a competent enough welder to be able to fit new engine mounts etc. Given that I’m about 24 months away from doing this it sounds like the LT1 is the way to go and I’ll just be able to get Martin to remake everything he has already made for you!
My big problem will be timescales. I can’t afford to have the defender off the road for an extended period and as I’ll be renting workshop space time will be money, so I’ll need everything ready to go. I’ll definitely be picking your brains again nearer the time. Thanks again. All the best. |
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21st Jun 2021 11:50am |
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230
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Question about water leaks......
I have no defender experience but can see from reading this forum there are considerable issues with water ingress. As I'm assembling everything from scratch are there any particular areas I should focus on perhaps common areas/problems or even mods that I should consider...??? any help or advice is appreciated. |
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23rd Jun 2021 4:29pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3674
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There is a manual for this I believe! It might actually be Land Rover issue.
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23rd Jun 2021 5:57pm |
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| Pacha Member Since: 23 Feb 2020 Location: North Yorkshire Posts: 772 
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^^^^^^
Here it is!. https://www.landroverweb.com/Pdf-files/Man...Manual.pdf Rgds. Chris |
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23rd Jun 2021 6:00pm |
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| JOW240725 Member Since: 04 May 2015 Location: Suffolk Posts: 7905
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Here's the manual...
Click image to enlarge James MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641 MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557 Instagram @suffolk_rovers |
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23rd Jun 2021 7:25pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3641 
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mine was built on a Friday and they forgot the water leaks, 10years old and as dry as a bone, didnt even add a leak under warranty when the windscreen frame was removed and resprayed for corrosion DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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23rd Jun 2021 8:13pm |
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230
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WOW I knew it was bad but is there any bit the doesnt leak...Guess I'll have to park it in the garage and not drive it in the rain.....
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23rd Jun 2021 9:08pm |
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230
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From the start there are two items of the build I'm nervous about, the electronics and mounting the engine/trans/TC
Well at least I can tick one of these off, putting this lot in was plain sailing (when I got the mounts the right way round that was  ) It appears that the TC is in the stock position as well, just need to check my original measurements when I can dig them out.
Click image to enlarge Click image to enlarge Been a bit of a struggle getting info and finding all the parts I needed for the mounts and a lack of instructions from any of the suppliers didn’t help much, but managed to figure it out eventually. I'll post up the part numbers and pictures in my next post |
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27th Jun 2021 10:55pm |
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| Defendermatt Member Since: 15 Sep 2016 Location: Derbyshire Posts: 313 
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Did you find an upper bearing? Could you share the part numbers for both upper and lower bearings? Mine are shot! 1989 90 4.3 V8 2012 L405 OF 2014 D4 HSE Lux (SOLD) 2015 90 HT (SOLD) @d9o.mf |
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6th Jul 2021 7:35am |
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| mrfirepro Member Since: 06 Nov 2020 Location: kent Posts: 230
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Hi Matt,
lots of info here you will find useful and answers to your questions https://landroverfaq.com/viewtopic.php?t=5861 In the end I stripped down both steering columns I had. The top bearing is a Nadella Deltaflex DG100, both of the ones I took out were dry as anything, these are easy to take apart and regrease the end result was good. Once cleaned, regreased and reassembled they were like new. There is a hole on the outside of the outer shaft, which makes a mark on the rubber, this is really useful when getting the re-assembly right Click image to enlarge Click image to enlarge Thankfully the lower bearing from by donor was in excellent shape so I used that in the end, but all the dims are in the info above, I'm confident that it would be quite easy to find a replacement. Click image to enlarge Let me know if you need anything else |
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6th Jul 2021 9:05am |
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