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The Nod Project - Serious Low Cost conversion


Nodalmighty

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Basically the project is this: Sw20 MR2 1UZFE Twin Turbo, Paddle shifted A340E internally modified for shift speed and line pressure control and 4WD.

 

Parts in stock :

 

Rev1 White MR2, 1UZ-FE, A340E Autobox, Mk3 Supra LSD Diff, various MR2 Turbo and Camry drive shafts.

 

Parts on a Promise (When I around to picking them up):

 

ST185 GT4 Celica Front hub assemblies.

 

Parts needed:

 

RakeWay transfer box, Free Lander Viscous coupling. Another MK3 Supra Rear diff for the front with the LSD toned down. pair of CT20b Celica Turbo's

 

Now the plan is to get it built for under £2k (£1000 of this is the transfer box and is a non negotiable item).

 

I have the Design, Fabrication and Machining in hand.

 

The Concept

 

Most of you will either think I've been at the magic mushrooms or have had a bang on the head or something as this will never fit in the back, it's transverse by design, but when you see HOW i'm going to do it it will become clear.

 

You know the North/South configuration of the Supra, well turn it 180 degree's and shove it into the back of the MR2, engine facing rearwards (pulleys at the back - nothing new here, Veyron is this configuration).

 

Step 1

 

Now feed the output to the reverse direction rakeway transfer box and send a shaft back to the diff mounted by the side of the engine and run an intermediate shaft though the sump (sealed alloy tube internally welded) to the other side using the OEM mr2 block mounted bearing. This sits the CV's in roughly the same position as the transverse gearbox in the turbo.

 

As this point it should be ready to roll as a RWD car and I hope to have it ready for JAE next year.

 

Step 2

 

Acquire a pair of CT20b's, a pair of water/air coolers and and see what a bar of boost will do (about 500 bhp I would think).

Step 3

 

Run the second drive from the transfer box through a GKN viscous coupling (to remove transmission wind up) and then on to the front diff. The front of an SW20 does not lend itself to diffs and shaft and there are panels, suspension pick up points, steering racks and countless other things (even the McPherson Struts protrude into the CV joint area) to make this a ball ache. I'll be using ST185 GT4 front hubs with hybrid MK3 Supra Shafts mated to ST185 CV's (Either re broached splines or Friction welded together). The steering rack looks like it shouldn't need to move but the track arms may need customising (the hubs will need to be swapped left to right) and the struts and bottom arms will need to modified.

 

Step 4

Build another one, this time with the M70 V12 out of the BMW750i which can be bought for less than a bag of sand.

YES it will fit, as it's the same length as a 2JZ, ergo that will fit too ;)

 

Having modified cars for 20 years I know exactly what I have just committed myself too :D

 

The victim :

 

http://nod-land.co.uk/assets/images/Front%20Near%20Side.jpg

 

The magic box that makes it happen:

http://nod-land.co.uk/assets/images/RakeWay%20Trans.jpg

 

Total cost to date : Zero

 

Lyndon.

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This could be VERY interesting :)

 

I see you have already covered off the extra wiring of a TT A340E so you should be okay with that... I remember reading a while back that the megasquirt could possibly control the extra solenoids... (So there may be an option there if you don't use the stock ECU).

 

VERY ambitious :)

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This could be VERY interesting :)

 

I see you have already covered off the extra wiring of a TT A340E so you should be okay with that... I remember reading a while back that the megasquirt could possibly control the extra solenoids... (So there may be an option there if you don't use the stock ECU).

 

VERY ambitious :)

 

I will be running a Syvecs S6 and my own custom computer controller ;)

 

Lyndon.

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I'm considering doing a third one with a 2JZ and a V161 in it :eyebrows: The beauty of having the transfer box remote is you can fit about anything that will physically fit. The engine out of Red Victor would have been nice :D

 

Manual box presents the whole H pattern reversal issue, but that it easily solved.

 

I'm sure my fiancée will be bored by the 1mz in her MR2 by then even when I put the special HX35 Holset Hybrid on it.

 

Lyndon.

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I remember you chatting about this last time I saw you. Like many others I shall be watching with interest. Good luck with it. :)

 

Cheers Ed,

 

I got fed up of "The 1UZ won't fit in a SW20 without wheel base mods" and "A 4WD MR2 can't be done" and the old favourite "anything can be done if you throw enough money at it"

 

Well, Yes it can, Yes it can and having the people around you with the engineering skill and tools required to get the job done is the key, not cash. Some might add a understanding misses to that list but Kate is one of the skilled engineers who will be helping get the job done :thumbs:

 

Lyndon.

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Cheers Ed,

 

I got fed up of "The 1UZ won't fit in a SW20 without wheel base mods" and "A 4WD MR2 can't be done" and the old favourite "anything can be done if you throw enough money at it"

 

Well, Yes it can, Yes it can and having the people around you with the engineering skill and tools required to get the job done is the key, not cash. Some might add a understanding misses to that list but Kate is one of the skilled engineers who will be helping get the job done :thumbs:

 

Lyndon.

 

I agree mate. Its the skills that is the key. I have learned that the hard way, and realised I have none. I'm just glad I booked you in before you got stuck into this, should keep you busy for a bit.

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I agree mate. Its the skills that is the key. I have learned that the hard way, and realised I have none. I'm just glad I booked you in before you got stuck into this, should keep you busy for a bit.

 

Well, it keeps me out of mischief. ;)

 

My first job is whipping the upper sump pan off and measuring the clearance of the crank counter weights to my intended drive shaft positioning (and add the drain points for the twin turbo's while It's off). I think the shape of the pan around the diff area will need a little fettle (near side). Then mounting the diff both to the engine block and sub frame. Then the prop to the centre bearing on the bell housing and the intermediate shaft to the bearing on the other side of the engine/sub frame. This shaft will be a MK3 supra diff hub friction welded to a MR2 Turbo or Camry intermediate shaft. The nearside shaft will be a small adaptor to couple the MK3 hub to the MR2 CV joint. while the offside will be OEM MR2 Turbo.

 

Lyndon.

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  • 1 month later...

I finally got the chance to tear the V8 down for shipping purposes. Found a rusty bore, fortunately only surface and scotch bighted out. I light hone will remove any surface pitting (I didn't feel any though).

 

I need to get the short motor onto a engine stand so I can plan the best position to machine the lower sump carrier for the through shaft, then I can make up the diff mounting. I've decided that a Aluminium motor plate will serve as a mounting solution for the engine and the rear of the diff.

 

One bonus is the fore and aft cross channel water housings from one head to the other are symmetrical so I could swap the stat housing front to rear. I'll be running an electric water pump so stats and mech pumps are of no matter to me but having the radiator inlet / outlet at the the other end of the engine saves a lot of hassle.

 

Like for like a 1UZ weighs about 3/4 that of a 2JZ. Considering how much crap I've binned off the engine it should be quite a bit lighter still.

 

Next step is removing the MR2 NA engine and box and weighing that in. We can then do some measuring up to see where stuff needs to sit in relation to the original drive shafts and sub frame.

 

Project progression is a little slow due to impending marriage and Radio Therapy, but it keeps me out of trouble ;)

 

Cost to date : £0

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Some might add a understanding misses to that list but Kate is one of the skilled engineers who will be helping get the job done :thumbs:

 

Lyndon.

 

I got to get me one of them your a lucky chap. ;)

 

Best of luck mate this looks very interesting I'll be following with great interest. :)

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I got to get me one of them your a lucky chap. ;)

 

I am indeed, get married on the 14th or August, can't wait :)

 

The white MR2 in the first picture was actually Kate's old parts donor. However, my old black UK spec Rev1 became the donor as they were both T-Bar's so now Kate's has my old 3.0 1MZ-FE in her Lambo orange MR2 (and a Holset HX35 Hybrid turbo awaiting fitment ) and I have the white one for my project. I made the mistake of buying her a Murciélago drive @ Bruntingthorpe so I think it's going to be a bit of a let down until the turbo is attached :D

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