The Saxo and 106 turbo / superchargered conversion guide

[Sophia_Bush]

The following is for a turbo conversion, supercharger information can be found later on this thread when Andy K and dboyvts have time to add their experience in.

Right first consider are you going to do this yourself? If not and you just want someone to build it up for you do not read further go to one of the following companies to get it built for you

GMC motorsport
cituning
Manicmotors
Broga Racing
atspeed

Ok now lets get going so you have decided you want to build your self a saxo / 106 with a bit of boost. Few things you will have to consider first before you even think about getting parts for the build.

1) How much power you want? low boost big power etc?
2) Daily drive or weekend warrior?
3) Budget

Now what most people have a problem is £££ this is by no means a cheap project to do if you want it to run properly and look half decent, the easiest way to work out what you need is decide on 1 and 2 then you can see how much it will cost you to get to that power. There is no point in saying oh if I run x psi on x internals how long will it last and what power will I get how long it will last as every conversion will be tailored to each individual.

Lets say you are going for a "basic" low boost conversion say 6 - 8psi what will you need to consider? For this basic conversion you will need to consider the following parts as a minimum

Manifold
turbo
downpipe
oil pressure switch t piece
oil feed
oil return
sump return
intercooler
boost pipes
hoses
bigger injectors (more on this later on)

Now you will think now I have got the parts what do I do about the fuelling side of things and lowering compression? Depending on what your budget is here you have many ways to go about things, to lower compression since this is a basic low boost conversion you are looking at a single 1.9mm mls hg plus an appropriate sized decompression plate (more on forged internals later on).

Fuelling again loads of choices on this from the mf2 sigcon combo, dastek with 4 bigger injectors or full monty standalone.

Now with standalone it has more scope for future mods ie extra boost can be mapped more accurately to take into account temperature changes and adjust fuelling more accurately. Also with standalone depending on what you go for can be mapped by any competent person with relevant experience. With dastek it can control 4 bigger injectors and do alot of things a standalone ecu can but the restrictions in this is that only dastek dealers can map them, they don't help with wiring diagrams and cost the same set amount for mapping every time but if you are going for a set spec and not changing this could be the one you want. Now if you are thinking I can't afford that but I still want the fuelling side sorted so I dont kill my engine then the only other option is the cheapest mf2 5th injector and sigcon this can be mapped on the road by anyone by adjusting the potentiometers but with these units it wont be as accurate as a standalone or even a dastek unit. They will also not be able to adjust the fuelling for changes in weather temperature and will just fuel as previously set.

With fuelling it is important you get the right injectors to suit your spec as I can't say what to get here because as previously stated all specs are differing going by what each person wants and budget. For standalone ECUs much choice to have but typically looking at

OMEX
DTA
Emerald
Predator
Gems
MOTEC
MBE
Megasquirt

Any of the above will do the job fine but again budget features needed will dictate usually what to go for but also consider who is going to map the car and what they prefer

Places to get most of whats on the list above

gmc motorsport
dp engineering netherlands
cituning
speedflow (for oil feed stuff and t pieces)
alisport (boost pipes, intercoolers)
rally design/demon tweeks (for hoses gauges dvs etc, although silicone hoses can be had off sfs, samco, psh direct)
wooser, omega, arrow, acrilite (for pistons rods)
QEP (for turbo cams, rods pistons)
atspeed

If you are savvy and are willing to look for things look on ebay as you can get most of the hoses, pipes and intercooler new for good prices. As for price itself how long is a piece of string? this totally and utterly depends on were you go and how lucky you are.

Now I have covered the basics there are alot more things to think about when going for bigger power turbo spec injectors how much to lower compression by. This will all be covered by people contacted in a previous post that have done or are doing the conversion themselves, the idea of this is to give a more varied look on how to do things.

This is not the thread to be asking what power should I get with x y z, this is just to serve as a guide as to what parts are needed what needs to be considered when doing a conversion etc. Also do a search on what combos there are to run in regards to fuelling/what turbos/boost presure etc this has been covered extensively. Please use the search button for older threads of people who have asked many questions in regards to turbo conversion.

More information will be added to this guide as and when the people pmd have time to put together a post of theiir opinions, sources etc on the the varying conversions about

EDIT - Also please read the following thread after you have finished here very sound advice and nice price guide for a medium spec build

http://www.saxperience.com/forum/sho...d.php?t=382703