General cinq/sei turbo FAQ

[arc]

Re: THE cinq turbo faq.

.... as for the super sprint manifold you think it be too thin ?? or the welds not up too boost presure ie ... on the flange's ...

this is my point.. without trying to sound like a smart arse here.. do you actually know what you are trying to do?

there is no 'boost' pressure in the exhaust. and supersprint manifold is a 421 manifold, and doesnt go to 1 until its under the sump. the turbo would have to go there, which is silly.. its not a question of welds breaking...

 

[fingers99]

Re: THE cinq turbo faq.

the dairy pipe is 316 chemical grade stainless 304 is car grade pipe work ( general use stainless )

You might get away with it. The issue isn't boost pressure, but how the stuff reacts to repeated (and extreme) heat cycling and having a whacking great turbo hanging off it.... I've no idea how 316 would react. 304, I'm told, will precipitate carbides and crack up sooner or later.

what would it cost too remap my stock sei ecu over buying a complete mega squirt system ?

It can be re-mapped (needs to be remapped if running a piggy-back system) but can't be remapped to cover all the perameters needed as a stand alone ECU. Hence megasquirt, etc.

50mm or 2.5" exhaust ??? see i can get all kinds in different thiknesses and sizes plus most grades of stainless but 316 will be my prefered with purged welds will out last any car

For the exhaust (and the exhaust has no more to do than on a standard car) 1mm thickness should be fine. You want mandrel bends if possible and as little back pressure as you can get. Remember that the turbo itself acts as a fairly efficient silencer, so you can forget the middle box. Some of the US and Japanese stuff uses aluminium or titanium exhaust tubing!

Arc is right in a sense: you've got all the fabrication skills needed, but need to spend some time reading the posts here -- J333EVO and TurboCinqy1250 and arc have all posted great stuff, and the A.G Bell Forced Induction and Mark Warner Street Turbocharging books are both pretty essential. The Warner one will give you some ideas on how to fabricate stuff, too.

Strangely, if I was building a forced induction Cinq now, I'd look at a Rotrex supercharger............

 

[fast_fiat2000@hotmail.com]

Re: THE cinq turbo faq.

this is my point.. without trying to sound like a smart arse here.. do you actually know what you are trying to do?

a very vague idea lol ...i know one side draws in (air box side)and the other pushes out (exhaust side).. wasnt too sure as too where be best suited too place the turbo .... ... to be honest most things i do to a car i havent a clue what i am doin till i have put it back together i can fabricate all day long panel work structural but i lack the knowledge too pull this off i can do it ( done gear box drive shafts and hubs so far one the sei ) its just knowing what go's where like a paint by numbers looks good at the end but well u know what i mean

i will try my best not too sound stupid in the questions too but my back ground is the construction industry cars /working on them is a new ball game ... give me plans for a power station i can build it so thats what i am thinking with the turbo just need too get the plans lol ... and a lot of help off u guys

 

[fast_fiat2000@hotmail.com]

Re: THE cinq turbo faq.

Arc is right in a sense: you've got all the fabrication skills needed, but need to spend some time reading the posts here -- J333EVO and TurboCinqy1250 and arc have all posted great stuff, and the A.G Bell Forced Induction and Mark Warner Street Turbocharging books are both pretty essential. The Warner one will give you some ideas on how to fabricate stuff, too.

Strangely, if I was building a forced induction Cinq now, I'd look at a Rotrex supercharger............

i will amazon the books later today thanks

 

[arc]

Re: THE cinq turbo faq.

ok..

air filter > turbo (compressor side) > engine > exhaust > turbo > (turbine side) > exhaust.

the exhaust gases spin the turbine, which spins the compressor, which pressurises the inlet tract of the engine, allowing more air to be forced into the cylinders, and you also inject more fuel - and get a bigger bang.

 

[fingers99]

Re: THE cinq turbo faq.

and get a bigger bang.

Sometimes a much bigger bang than you wanted

 

[TurboCinqy1250]

Re: THE cinq turbo faq.

try a search on howstuffworks.com

And remapping the original ECU isn't a good option.

Normally the enginemap is running between 0 and 1 bar of boost.
If you boost the engine to 0.5 bar the map should be between 0 and 1.5 bar.
So the resolution of the engine is about 30% lower wich gives a less smooth engine running because of the bigger steps between the values.

Best idea is to place a second injector and use a piggyback to run it and the rest of the piggy back for the ignition and maybe a little fine tuning in the original mapping.

otherwise a standalone with much bigger resolution and a MPI manifold.

Biggest problem of most people is money. So what do you want and how much money do you want to spend on it.

 

[fast_fiat2000@hotmail.com]

Re: THE cinq turbo faq.

i dont have a problem with the finance . . just would like too make as much of it myself fit as much maybe even save as much as i can ... once i got one build and running i can upgrade stuff then ... i do like the idea of scratch building a turbo

 

[fingers99]

Re: THE cinq turbo faq.

Aquamist MF2 manual -- as used on VAD kits and much more available for download here.

 

[davethetrike]

Re: THE cinq turbo faq.

dumb question number 44/11

What injectors do you use...mf2 system.. and where are they placed?

Looking for ideas on various installations.

Thanks

Context here
https://www.fiatforum.com/punto-technical/89930-punto-supercharged.html

 

[fingers99]

Re: THE cinq turbo faq.

dumb question number 44/11

What injectors do you use...mf2 system.. and where are they placed?

Looking for ideas on various installations.

For spi or mpi system? On spi most folk run a second injector in a plenum chamber upstream of the original injector. Lots of pics and detailed specs in Aaron's gallery and elsewhere. Most systems with 4 originals run an additional 4 in another plenum chamber. Some formulae and designs in A.G Bell Forced Induction and Mark Warner Street Turbocharging.

 

[davethetrike]

Re: THE cinq turbo faq.

For spi or mpi system? On spi most folk run a second injector in a plenum chamber upstream of the original injector. Lots of pics and detailed specs in Aaron's gallery and elsewhere. Most systems with 4 originals run an additional 4 in another plenum chamber. Some formulae and designs in A.G Bell Forced Induction and Mark Warner Street Turbocharging.

16v so mpi, I'll order the forced induction, have been reading about several ways of adding injectors, including into the intercooler. I was just wondering how the turbocharged systems were done on members installations. Gathering ideas.

 

[fingers99]

Re: THE cinq turbo faq.

Some ideas here. GMCmotorsport are importers of Rotrex chargers -- completely different design to the Eaton, but much crosses over.

But don't even think about fuel injection into anywhere before the plenum -- the result of a misfire would be catastrophic!

 

[davethetrike]

Re: THE cinq turbo faq.

Some ideas here. GMCmotorsport are importers of Rotrex chargers -- completely different design to the Eaton, but much crosses over.

But don't even think about fuel injection into anywhere before the plenum -- the result of a misfire would be catastrophic!

And messy I'll find the sites that discussed this, although they were talking about using a fifth injector, still your point about a misfire is very, valid.
I can see me now standing by the roadside with a mangled intercooler, big oops :bang:
Love it.

 

[fingers99]

Now that VAD and Novitek have stopped knocking out their Cinq kits, it looks like Vinci Motorsport are putting one out which seems to be a copy of the VAD kit.

AFAIK, no-one here has seen one in the flesh, fitted, or even ordered one, so the reality is shrouded in rumour, but this thread has some details.

 

[FiatSeicTunnerMK]

I am reading all the time about Seicento turboing, and learning very good ideas. But i have one problem and i need help. In my country there is not turbo cinq/sei, i want to do a low boost on my seic but i can't find nothing available about it on the net, it is all about high. But it is too much expensive for me untill now. I am thinking also about Punto Engine, it is only about 300-400E without Gearbox, but expensiv ECU. Pls send me something about low boost and its cost, what it includes, and pictures from one if you have... Thank for your help!

 

[custard]

um read the 1st post? theres no difference bar no need to drop compression(so no decomp plate or low comp pistons needed)
theres is no 'cheap' turbo option

 

[CaneyJ]

Am looking for one of those 4-wire FCD's suitable for my low booster conversion. The Thor racing one previously recommended has been discontinued so can anybody point me in the direction of an alternative? Hopefully not exceeding £100, cost effective as possible really .

 

[J333EVO]

TurboXS, Turbosmart & HKS all do Fuel Cut Defenders, but all just over £100 IIRC though you do get some popping up on ebay from time to time 2nd hand.


Turbosmart £111.63 from Demone Tweeks for electronic version, there is a pneumatic version but i have no experience of this type
http://www.demon-tweeks.co.uk/products/ProductDetail.asp?cls=ROAD&pcode=AETFG-FCD-001

HKS £99.88 from Demon Tweeks
http://www.demon-tweeks.co.uk/products/ProductDetail.asp?cls=ROAD&pcode=HKS4501-RA002

TurboXS £65 from Funky Styling
http://www.funkystyling.co.uk/item_detail.php?prodID=444003122

HTH

Aaron.

 

[giorgio1712]

So can anyone do a definitive list of not only what parts are needed but how much they cost and where to get them from ie. a link?