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L_jonez Micra Build


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#1 l_jonez

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Posted 05 June 2011 - 09:50 PM

i already have a thread for my minis rebuild here http://www.theminifo...howtopic=137592 but i thought id best make a new thread for its next step in its evolution.. a micra transplant.

a week ago i bought this

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which has a 1.0 engine

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at the moment the plan is to use the 1.0 engine to mock up the frame, once this is done im not sure which way to go. the current thought process is to strap a turbo onto it but theres also a part of me that wants to keep it na but with a 1.3 engine.

either way its going to have a custom intake manifold.

for the intake i will be chopping the flange off the micra inlet and welding it to a Toyota manifold which is a much better design and should gain a bit of power.

Toyota manifold

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for simplicity i might ditch all the injection etc and go for megajolt(already on mini) and carb.

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currently the engine is ready to be lifted out of the micra.

sadly there wont be much progress until the vtec mini is finished but i'll update when possible

#2 l_jonez

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Posted 09 June 2011 - 08:24 PM

Cough* engines out *cough

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#3 minidream94

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Posted 09 June 2011 - 08:30 PM

Sounds an interesting project man :thumbsup: Id like to drop a 1300 micra engine into my mayfair and then slap a turbo on it and do some head work and stuff :- keep the pictures coming as ill be watching this closely.

also what sthe manifold off of?

Edited by minidream94, 09 June 2011 - 08:31 PM.


#4 l_jonez

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Posted 09 June 2011 - 08:45 PM

It's from a Toyota 4-age engine

#5 l_jonez

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Posted 12 June 2011 - 07:45 PM

Started playing with the inlet manifold today

Toyota manifolds flange chopped off

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Micra flange cut off

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Hopefully the end result when welded

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Will have to wait untill the engine is the car to see how well it fits but I can cut it shorter if needed.

#6 l_jonez

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Posted 13 June 2011 - 07:11 PM

Have to order some steel to create the subframe so whilst I wait im doing little things to keep me occupied. Today I ported the micra flange a bit.

Lined up the manifold gasket and scribed around it

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Then set about enlargeing the port

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Hopefully the exhaust manifold will turn up tomorrow which means I can get that chopped and welded

#7 rids

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Posted 13 June 2011 - 07:13 PM

what you doing for exhaust manifold?

#8 new_zealand _minis

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Posted 13 June 2011 - 07:16 PM

i still dont see how you are going to get fuel equally down all the intake .. ? as there was never fuel running down them

#9 l_jonez

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Posted 13 June 2011 - 07:24 PM

i still dont see how you are going to get fuel equally down all the intake .. ? as there was never fuel running down them



The fuel injectors are right next to the head so if I keep the EFI its ok. If I go carb ill have to look how well it flows on a simulation (solid works) and see what I have to change

Edited by l_jonez, 13 June 2011 - 07:28 PM.


#10 l_jonez

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Posted 13 June 2011 - 07:26 PM

Exhaust manifold will be a modified ( bigcheif style) K series. Managed to get a brand spanking new one off ebay :thumbsup:

#11 James_1

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Posted 14 June 2011 - 05:47 PM

Flow won't be the problem - icing is what will potentially kill it with such a long inlet. I'm really interested to see how this goes so please keep us updated, I want carbs and a mechanical dizzy on mine :)

#12 The Marcos Graveyard

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Posted 17 June 2011 - 11:29 AM

at the moment the plan is to use the 1.0 engine to mock up the frame, once this is done im not sure which way to go. the current thought process is to strap a turbo onto it but theres also a part of me that wants to keep it na but with a 1.3 engine.


Remember that the 1ltr gear box and the 1.3 are very different in size, if you mock up with the 1ltr you'll find the 1.3 wont fit. Better to mock up the 1.3 initially.

The gear linkages are different as is the gearbox oil filler hole and the CV joints.

#13 Artstu

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Posted 17 June 2011 - 11:54 AM

Remember that the 1ltr gear box and the 1.3 are very different in size, if you mock up with the 1ltr you'll find the 1.3 wont fit. Better to mock up the 1.3 initially.

The gear linkages are different as is the gearbox oil filler hole and the CV joints.


Only the very early 1.0L had the smaller box and driveshafts, if the engine and box are from the red Micra the box and driveshafts will be the same size as those from a 1.3L car.

Edited by Artstu, 17 June 2011 - 11:55 AM.


#14 l_jonez

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Posted 17 June 2011 - 02:22 PM

Remember that the 1ltr gear box and the 1.3 are very different in size, if you mock up with the 1ltr you'll find the 1.3 wont fit. Better to mock up the 1.3 initially.

The gear linkages are different as is the gearbox oil filler hole and the CV joints.


Only the very early 1.0L had the smaller box and driveshafts, if the engine and box are from the red Micra the box and driveshafts will be the same size as those from a 1.3L car.



What he said , its the same size box just different ratios

#15 l_jonez

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Posted 19 June 2011 - 05:58 PM

Wiring now stripped down to the just the engine loom. Got to say its a lot smaller than the vtec loom.




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