Tuning supercharged cinq

[arc]

Re: supergharged cinq

as I've said before you solder me a squirt and I'll help you with the rest

money issues atm tho, once i've finished uni i should be in a better position - but since moving to Sheffield, i have no garage

and the disadvantages are......... there are a darn sight more car out there running piggy back systems than stand alone and there are more and more examples of squirts been used as piggy backs too

In a simple application such as this it really is over the top and I know of 10 times more engines that have met a sticky end with custom ECU than with running piggy backs

I just don't like the idea that nothing actually knows what's going on across the whole engine. The stock ECU can 'see stock fueling' and is modified so that it doesn't 'see' boost. The secondary controller has no idea what the ECU is doing, and fires using another injector that's been added. Boost control is done using another controller, knock sensing with another.

It is (imo) easy to install and use the likes of MS, and much simpler to setup than try and balance an array of other controllers - and the thing that should sway it is... ignition timing. Full control is critical, you cannot do that with a stock ECU and an additional fuel controller.

It's wrong to say either way is right or wrong - all we can do is throw out some reasons, and then it's up to 'im!

 

[chaos]

You do need to remember that a blokey supercharging a 1275cc A series engine does not necessarily have the same amount of understanding of the FIRE engines. There are people on here who do though.

Plus there's almost 50 years of history of sticking chargers onto the A series. Plus you can also get full bolt kits quite easily from Mini specialists.

Neither AFAIK exists for the FIRE engines.

 

[MazCinq]

ok so let me get this right in my head you guys recon

bin the spi head and fit mpi but which mpi do i get a 75 head or just a sei mpi head if i change to mpi will i need second injector or just fit spi TB

bin ecu and fit MS or similar is that right rather than piggy back

i am still looking for advise as i have the sale of the charger on hold while i sort out what other parts i need and where i can get them from

sorry i am just starting to get a little confused abit cos i kind of had it planned out in my head and some of its right and some abit more complicated than needed i will go back and read the scharged punto again and read how he did it and see if thats the way i will go because he was looking at massive power and i really dont want anywhere near that much, it would be fun but expensive when it goes wrong or i leave the road

 

[Todger182]

ok so let me get this right in my head you guys recon

bin the spi head and fit mpi but which mpi do i get a 75 head or just a sei mpi head if i change to mpi will i need second injector or just fit spi TB

You will need head, inlet manifold, injectors,reul rail, throttle body, injector loom wiring, throttle body sensors and wiring.

Thanks

 

[ycming]

You will need head, inlet manifold, injectors,reul rail, throttle body, injector loom wiring, throttle body sensors and wiring.

Thanks

Probably cheaper to just find a cheap p75 engine!

Ming

 

[allanhelen]

It is up to you how you do it I'm afraid this is the point i've been trying to make all along.

You need to decide the level of complexity and cost you want and go from there, all the options mentioned here will work and we all have slightly different views on them.

You just need to read up and decide,

But the one thing you do need is the charger, so buy it and when you have figured out how to mount and drive it which is the hard bit then get the rest

 

[MazCinq]

well should have the charger soon and budget is open ended but the more it costs the longer it will take lol as when i need a part i will sort the money out and get it but if it get stupid like 4k then i may draw the line but at the mo i am thinking around 2.5k and i will be happy which yes i know is alot to put into a car i will never get the money back on but this project is for the love of the cinq, to be different and for everyday useable power

 

[MazCinq]

ok here we go again, i have got my thinking head on again and i might be re opening this plan but changing the 1108 for the p75 block and maybe try and source a smaller charger than the bmw mini one i was planning not sure

the reason why i binned this idea in the first place as there was alot of questions as to weather the crank would be strong enough, what i am wondering is, is the 1242mpi crank stronger than the 1108 and would it stand up to the extra strain caused by bolting a supercharger to it?

 

[whitz]

ok here we go again, i have got my thinking head on again and i might be re opening this plan but changing the 1108 for the p75 block and maybe try and source a smaller charger than the bmw mini one i was planning not sure

the reason why i binned this idea in the first place as there was alot of questions as to weather the crank would be strong enough, what i am wondering is, is the 1242mpi crank stronger than the 1108 and would it stand up to the extra strain caused by bolting a supercharger to it?

seeing as if you might put a supercharger on why not get the crank out and machine the end of the crank and weld a massive lump onto the pulley ...

like two semi-circles that fit together to make a circle which would be alot better then the original pin that failed on the punto

Ash

 

[MazCinq]

hmmmmm that sounds like a plan, while i have got the engine apart changing the shell i will take it and see what can be done

was it only the crank key that was the problem?

~runs off in to the archive to dig out the punto thread~

 

[Renrut]

Just butting in but whats the crank key made from? Might it be easier to just get a harder key? Welding doesn't sound clever unless you really are a good welder.

With regards to getting a smaller charger than the M45, the only ones I can think of are the rotrex type or something like a G60 from an old polo.

In terms of the entire project get all the major parts together (charger, IC if you're gonna use one, manifold etc) then sit and look at it all and see how it'll go together in the space you have available. No amount of careful planning and thinking about it will be as good as mocking everything up in place before you start making any brackets or concrete plans.

No doubt that it can be done but remember it might not be very easy for the gains you will get.

 

[MazCinq]

its something i will really look at hard before i decide anything and as for the smaller supercharger my friend recons there was one designed to be bolted to a bike engine but i really dont know how true this is lol

first things first i am going to strip my 1242 down and fit some 16v pistons and rods which will reduce the comp and then look at wiether i go supercharger or turbo but i know its going low blow for the mo