[Mk2] [Turbo] What other mods do i need? Do i need a FCD

[marley]

Hi all ive slowly be gatering all the bits i need to get a bit more power from my rev2 tubby, so far i have fitted:

Blitz NUR Spec exhaust
intercooler from greddy
MBC

And have waiting at home ready to fit:

downpipe xxxx
Driftworks Oil cooler
Induction kit from apexi
ct20b
Colder plugs
Oil Catch Tank
HKS SSQV
plus various gaskets for turbo, downpipe etc

Once i have fitted all this i am planning to get rid of the MBC and have an apexi power fc (if i can still get hold of one, if not similar) with EBC and set up on RR.

Just wanted any advice on further upgrades that i would need to make the engine run safe at around 1.1-1.15 bar, will i need a FCD or not as planning to use power fc.
Any adice welcome ANDY

[Caribbean_Blue]

If in your shoes I would get:

1) Walbro Uprated Fuel pump*
2) Larger injectors (540s minium seen as your mapping and if you have the money for it larger 600-800s even).

Sell the oil cooler as isnt really needed & use money elsewhere.

[PHIL440]

you will not need a fcd if you are goeing to run a power fc

[marley]

So oil temp should be ok without oil cooler?

Would rev 3 injectors be enougth to run that sort of boost, or is it just worth going a bit bigger?

[screech205]

Wouldnt have thought you'd be troubling the injectors too much with just a CT20 and a slight boost increase.

As mentioned before, you won't need a FCD with a PowerFC

[Leon.]

Controversial with the fuel pump upgrade, I have heard the thing to add or change is a fuel pressure regulator and that the stock rev 3+ pump (if different to rev 1 or 2) is fine

[screech205]

TBh i thought you'd only need an adjustable pressure regulator if you're running lots o mods and a different fuel rail as the stock one is 1:1 ratio so increases fuel pressure with boost

[Leon.]

I'm not too technical with this but if you raise the boost the ECU will raise the richness of the air-fuel mixture. If you have a mappable ECU you can use a regulator (and gauge) to safely make the air/fuel mixture leaner towards 11.5.1, supposedly the ideal...

Btw, there's no point adding a more capable fuel pump without a mappable ECU anyway.

[screech205]

True mate, all i'm getting at is that the stock FPR is probably gonna do the job fine unless major fuel mods are planned, maybe spend the money on Rev 3 cams or something along those lines.

The ECU will adjust the mixture accordingly when boost is raised but it cant adjust the fuel pressure. Power FC and stock FPR will do the job nicely!

[Al-sw20]

I have heard the thing to add or change is a fuel pressure regulator

Why would you need to change it?

[Leon.]

Did rev 1 and 2 have a FPR? Maybe that's where I'm getting it from?? In which case I don't mean change, I mean add... or if all revisions had one then I mean use with a mappable ECU

I agree with you Screech, I think were are talking about the same thing, even though I seem to be confusing things lol

I would assume it would be obvious when the car is mapped as to how the fuel system is doing and whether you could do with an uprated pump - depending on your individual setup...

[jimGTS]

Hi all ive slowly be gatering all the bits i need to get a bit more power from my rev2 tubby, so far i have fitted:

Blitz NUR Spec exhaust
intercooler from greddy
MBC

And have waiting at home ready to fit:

downpipe xxxx
Driftworks Oil cooler
Induction kit from apexi
ct20b
Colder plugs
Oil Catch Tank
HKS SSQV
plus various gaskets for turbo, downpipe etc

Once i have fitted all this i am planning to get rid of the MBC and have an apexi power fc (if i can still get hold of one, if not similar) with EBC and set up on RR.

Just wanted any advice on further upgrades that i would need to make the engine run safe at around 1.1-1.15 bar, will i need a FCD or not as planning to use power fc.
Any adice welcome ANDY

oil cooler not needed at this state of tune....
only way your gona be able to run a apexi fc, is if you do a rev3 ecu conversion (mat, map, ait sensors, injectors), or find a rare ap engineering power fc....obviously oil catch can and hks ssqv does nout for power/performance......

fcd, youll need one before you put on the apexi fc if you want to run more than 13psi before the ecu swap and mapping....

[marley]

Is power fc only availiable for rev3 then? Im aware that they are discont.

If i would need rev 3 ecu etc to run one then would it work out expensive so maybe a different ecu would be better, was interested in the apexi as it seemed to be good value for money

[screech205]

Ah yes forgot about that, well you could do a full rev 3 conversion or just run a Unichip with your existing ECU, should be more than capable of controlling what you've got and would cost less than a Rev 3 conversion + Power FC.

TBH if you've got the cash then i'd go Rev 3 and Power FC, it'll be better if you decide to do further mods in the future

[marley]

Think unichip would be a better bet (is that dastek?) as dont plan on any further engine mods after injectors, then sort the ecu and get it mapped.

However im sure thats what most people say, seeing as when i got the car i was gonna settle for a set of wheels, exhaust and 40mm springs.

Does any body know of any garages who deal with unichips in the south? im in southampton/portsmouth area.

[screech205]

Yes it is Dastek, i'm sure there's one in the for sale section giong pretty cheap, might be worth a look.

Not sure who'd map it down there, probably be on Dastek website somewhere i guess.

If you are going for more mods then i'd make the decision now rather than later as like jimGTS said, there's no Power FC available for Rev 2 so if you want a Power FC then you'd have to do the Rev 3 swap anyway so seems daft to spend the money on a Unichip then realise it isn't capable of running your future mods if you get what i mean.

Would have thought with those mods you'd see at least 250 fwhp, probably more

[marley]

Thanks for the advice, im alot less confused about what i do and dont need now. Will check out the for sale section. Thanks Andy

[Leon.]

Well now your sorted, mind if I jump on your thread?

So from unichip's webiste, this is apparently what it can do:

Variable valve timing adjustment
Rev limit adjustment
Boost limit & level adjustment
Dual maps for use with different fuel grades & types
Water Injection
Nitrous oxide progressive injection
Bigger/supplementary injector handling
Variable induction control
Launch control for turbo vehicles
Full throttle gear changes
Road speed limiter removal
Speedo conversion for imports
Shift light
Idle speed stabilisation

So do you still need an MBC or EBC with one then?

With similar mods to marley on my rev 4 ct20b, do you think a unichip would do for me too? Has anyone got one running on their's?

My mods will include:

3" exhaust
3" dp
Berk/Greedy intercooler or 2nd hand CC
Apexi induction filter
Ct20b
Grade 7 plugs
HKS SSQV
Ogura clutch
Possible uprated fuel pump if necessary

[Leon.]

Bump

I'll just have to create a new thread if no-one can answer