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Nissan Micra Engine Transplant


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#121 Artstu

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Posted 10 May 2009 - 07:53 PM

to all mainly to bigchief3679
having trouble finding a sutible donor micra, have you/all tried any of these cars seems to be more of them
around (young chaves seem to crash them more)citroen saxo,vauxhal corsa,peugeot 106 any coments
please would be good
thanks andy :goaway:


There's a low mileage 1275 Micra in Exmouth, it's at £70 at the moment, but the auction finishes in 12hrs.

#122 richardsoniscool

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Posted 10 May 2009 - 10:51 PM

if u cant find a micra have a word with the guy a few threads down hes putting a saxo vtr engine in a mini? but im sure you can find a micra somewhere.


a question though, if i put a non standard engine in my mini where do i stand tax wise? is it the same i would pay for the mini or does it go up if i put the micra engine in and would it go up again if i went redtop? thanks

Edited by richardsoniscool, 10 May 2009 - 10:55 PM.


#123 flying banana

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Posted 11 May 2009 - 07:42 AM

if it helps my M O T station have said that the M O T is based on the the cars reg and not the engine age
so as for my mini (1968 mk2 cooper)no emissions for me just got to look good :D

#124 jimbob69

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Posted 11 May 2009 - 08:09 AM

Tax wise you should stay as the mini, my mates K20 vtec is still tax free as pre 72 :D
I got my cg13 engine on fri and started to mod a scrap frame over the wkend as a trial mock up, must say its tight getting the n/s inner cv central in the subframe shaft cutout and the diff housing looking clear of where the steering rack would be but bigchief has done it so i know its possible!
My inner cv's look bigger than all the others in previous pics :(
Any chance of some more pics bigchief? of the cg13 in the frame ie from the sides looking at the cv's and from the back before fitting

Cheers James

#125 bigchief3679

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Posted 16 May 2009 - 12:06 AM

Hi all one for Bigchief I think I see you have been using the MA10, CG10 and the CG13 engines. Do you know if the MA12 engine will fit because I read somewhere that it is about 10mm taller because of the extra stroke.
Would prefer to use this engine at the moment to try and keep things a little simpler (no ecu to worry about).
Would like to get a set of bike carbs on it to give it a bit more, but thats another project.

Definatley want to give this a go.

Thanks Nige

hey guys sorry for the late reply,
the ma12 would defn fit because when the ma10 is complete it sits unbelievably low in the engine bay (about 1 inch taller than the crossmember containing the chassis no. and bonnet latch) according to my research though the ma12 is more unreliable than the 10 mainly due to headgasket issues and only good for 5 more hp than the ma10. the cams and willingness to rev gives the ma10 a clear advantage over the 12 IMO at least.

#126 bigchief3679

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Posted 16 May 2009 - 12:10 AM

to all mainly to bigchief3679
having trouble finding a sutible donor micra, have you/all tried any of these cars seems to be more of them
around (young chaves seem to crash them more)citroen saxo,vauxhal corsa,peugeot 106 any coments
please would be good
thanks andy :(

the cars uve mentioned are quite scarce here in the caribbean but i've seen the engines of the vauxhall corsa and its very similar to the micra. the injection system is quite simple and the gearbox is really tiny. if given the choice it would be my pic for sure. installation should be similar to the 8v vauxhalls seen on this forum, go for it!

#127 bigchief3679

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Posted 16 May 2009 - 12:18 AM

Tax wise you should stay as the mini, my mates K20 vtec is still tax free as pre 72 :(
I got my cg13 engine on fri and started to mod a scrap frame over the wkend as a trial mock up, must say its tight getting the n/s inner cv central in the subframe shaft cutout and the diff housing looking clear of where the steering rack would be but bigchief has done it so i know its possible!
My inner cv's look bigger than all the others in previous pics :w00t:
Any chance of some more pics bigchief? of the cg13 in the frame ie from the sides looking at the cv's and from the back before fitting

Cheers James

are u using the large R5 gearbox or the small U5
as we import from japan this is the model we usually get, some cg13 gearboxes are as large as those on the pulsars or almeras and therefore harder to fit but better ratios, stronger clutches and larger cups .heres a pic of the box we use
Posted Image

Edited by bigchief3679, 16 May 2009 - 12:20 AM.


#128 iank

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Posted 16 May 2009 - 10:35 AM

Tax wise you should stay as the mini, my mates K20 vtec is still tax free as pre 72 :D
I got my cg13 engine on fri and started to mod a scrap frame over the wkend as a trial mock up, must say its tight getting the n/s inner cv central in the subframe shaft cutout and the diff housing looking clear of where the steering rack would be but bigchief has done it so i know its possible!
My inner cv's look bigger than all the others in previous pics :D
Any chance of some more pics bigchief? of the cg13 in the frame ie from the sides looking at the cv's and from the back before fitting

Cheers James

are u using the large R5 gearbox or the small U5
as we import from japan this is the model we usually get, some cg13 gearboxes are as large as those on the pulsars or almeras and therefore harder to fit but better ratios, stronger clutches and larger cups .heres a pic of the box we use


Gearboxes in the uk are RS5F's according to the haynes manual
depending on year (looks like they changed in 2000)
998cc RS5F41A, RS5F30A
1275cc or 1348cc RS5F31V, RS5F30A

Edited by iank, 16 May 2009 - 10:36 AM.


#129 jimbob69

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Posted 16 May 2009 - 10:38 AM

Ah i see i must have the larger box then!
Not causing too much problems at the moment, we have the frame cut and the engine sat in and all appears clear of obstructions so far.
Main issue was steering rack clearance with the cv cup central in the driveshaft cutout but we think we are clear, if it stops raining will get some more done!
This is only a trial frame so i know exact minimal cuts, will be making another "finished product"
should be in the car in a couple of weeks ish :D
I want to use bike carbs so have to figure out the ignition side of things?

#130 iank

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Posted 16 May 2009 - 11:07 AM

Ah i see i must have the larger box then!
Not causing too much problems at the moment, we have the frame cut and the engine sat in and all appears clear of obstructions so far.
Main issue was steering rack clearance with the cv cup central in the driveshaft cutout but we think we are clear, if it stops raining will get some more done!
This is only a trial frame so i know exact minimal cuts, will be making another "finished product"
should be in the car in a couple of weeks ish :D
I want to use bike carbs so have to figure out the ignition side of things?


Cool, any photos, measurements?
Probably easiest to use a Megajolt for ignition if you're not using the ECU from the micra.

#131 jimbob69

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Posted 16 May 2009 - 05:11 PM

No got rained off most of today so didnt finish plating up the frame, will crack on tomorrow weather permitting and take some pics. Will give you the measurements when i have made sure it all goes together ok and fits in the car just in case!
I have the wiring and ECU from the micra but read on the micra forum that a guy who fitted bike carbs had issues with MAF sensors not been connected etc so the ECU advanced the timing? Not sure on this so need to do more research. Megajolt is always an option but i would like to stick with the stock ECU for less expense

#132 Nigeunders

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Posted 20 May 2009 - 09:09 AM

Thanks for the reply bigchief looks like its the cg13 engine then will let you all know how it goes.

Nige

#133 miilor

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Posted 21 May 2009 - 09:04 AM

hello,bigchief3679 I have seen your minimicron, I believe that it is the best way for 16v and 5 gearboxes, but only 80cv, Nissan 1600 16v of a Nissan almera, fits just as the 1300 16v? 1600 need majors modifications in subframe? what gearboxes is better 1600 or 1300. sorry for my bad inglish, use a translator online I am from Spain

#134 bigchief3679

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Posted 24 May 2009 - 10:08 PM

hey miilor, to answer your question, the 1.6 almera engine and gearbox is a full 3 inches longer than the cg assembled requiring cutting of the inner wings not to mention a more elaborate subframe approach. the intake runners are alot larger than the CG and prompts intensive bulkhead mods plus there may be steering/diff issues. the fact that the almera engine is cast iron makes it alot heavier and the horsepower gains between it and a cg13 may not prove to be worth the trouble when compared to a VTEC or starlet conversion. cg13=75hp, ga15=97hp. hope it answers ur questions.

#135 miilor

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Posted 25 May 2009 - 05:02 PM

hey miilor, to answer your question, the 1.6 almera engine and gearbox is a full 3 inches longer than the cg assembled requiring cutting of the inner wings not to mention a more elaborate subframe approach. the intake runners are alot larger than the CG and prompts intensive bulkhead mods plus there may be steering/diff issues. the fact that the almera engine is cast iron makes it alot heavier and the horsepower gains between it and a cg13 may not prove to be worth the trouble when compared to a VTEC or starlet conversion. cg13=75hp, ga15=97hp. hope it answers ur questions.



ok, gracias. CG13 is the best choice




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