fiestaturbo.com

[MOONDUST FRST]

Im thinking maybe of upgrading my setup next year and from info ive read so far i believe my next step is as follows-

T35 turbo,
Flowed/big valve head/(cams?),
New kind of inlet manifold.
New management?????(is it needed?)
New injectors???(are these needed also?)

I would be willing at having a go at fabricating my own inlet manifold to save costs and for sheer love of doing one anyway What i need to know though is which part of the standard FRST inlet is restricting the flow? And what throttle body would i need to use also will i have to change my crossover pipe too?

Any advice info etc. much appreciated

[Stoned]

Surely you cannot be finding it too slow already?!

[MOONDUST FRST]

Err dont know mate cos i aint got it back yet

[ianFRST]

yes mate, id look in2 new management before anything else...

as the FRST management will only be good for 280 ish...

and im sure ull be sumwhere near that mark?

injectors also depends on what ur running at the minute......

[nosworth]

flowing the head is a good idea but from experience over porting the head ends up making low down power drop and you end up with more lag...
A t35 would be ok,but you will need a good managment system to get full use of it..
Cam wise I am now using a 105bhp spec exhaust cam and a 130bhp inlet cam to reduce overlap..
until i get my new management in I am using 9 injectors to keep the fuelling up with the 21psi of smiles the t3 knocks out..
its currently unmapped beyond 5000rpm but it kicked out well over 300bhp in a test run t'other day..
the frst inlet is ok for 300bhp at least but there are a few other options including the 8 injector setup i designed using the zetec efi inlet,but unless you are going for more than 300 stick with what you have and stick a bigger throttle body on it..
I dont know the exact engine and induction spec so I cant really help any further till i do...

[chumkila]

9 injectors?! my word!

[nosworth]

there was originally the standard 4 fiesta zetec injectors and then a fith one was fitted when the turbo conv was done..it ran out of fuel at 7psi so i designed an eight injector manifold..now its running marginally on 21psi so i got a standalone 5th injector driver and plumbed it back in..New management from Emerald will sort it out so i can go back to 8 and run about 28psi..

[dannyboy]

If you want, ill have a look at my inlet and see how much of it needs to be fabricated, I think its half standard frst and half rover. I know it runs a frst throttle body, is fine with that power. Which managment are you getting, im looking into pectel. Im sure the exhaust manifold becomes restrictive above 300brake aswell so a new one will probly improve flow.
Nosworth, how much petrol do you go through on 9 injectors?

Dan

[PhilM]

Moondust, what is your spec now? It'll help us trying to help you so we can see exactly what it does and does not have.

Generally to get a Zetec Turbo to 280bhp is fairly easy, with the majority of major engine components being standard items. To break the 300bhp barrier involves a lot of cash, and will require as a rough guide the followin

After market management - For greater control & flexibility.
Steel Rods - Std Powedered Metal rods start to ebdn after 280ishbhp.
ARP Conrod Bolts - Though ANY Zetec turbo should have them!.
Change of exhaust manifold - One designed for a Zetec and the correct airflow, especially important is the collector.
STRONG Pistons - Not Calibra ones, we are now talking about JE/Arias, billet alloy pistons.
Full balance
Flow bench developed inlet manifold - Essential to ensure the best airflow into your engine.
Flow bench developed head, standard valves will suffice to 400bhp, however port shape is vitally important
Custom turbo spec cams - Dont copy Cossie cams! It just wouldent work baby!
Uprated valve springs - Should ahve them in ANY Zetec turbo engine.
Suitable turbo - T35 essentially.

It'll cost a lot of money as you can appreciate, and to break the 300bhp barrier, propper development is needed, not just a bolt together off the shelf bits engine. You'll need to know exactly what compression ratio and cam timings/specs you require, little details like this are very important indeed. Also, for an engine of this standard, i'd look at developing it using an engine dyno.

[MOONDUST FRST]

Right heres my current spec-

*Fiestafrenzy 2.1 16v Zetec E turbocharged engine
*Fiestafrenzy zetecturbo cams
*Focus RS Mahle forged pistons running 7.45:1 compression ratio
*Focus RS rods
*ARP big end bolts
*Ahmed "secret spec" injectors
*Ahmed Bayjoo software(OFAB)
*Hybrid T3 Turbo (360 degree thrust bearing, 55 trim compressor wheel,0.63 ar exhaust housing, air cooled)
*2.5 Bar MAP sensor
*Uprated Escort Cosworth fuel pump
*Cosworth 4x4 fuel pressure regulator
*Vibratechnics gearbox mounts
*AP 4 paddle clutch
*CTS stage2 IB5 gearbox with Qauife ATB
*3" bore through stainless steel exhaust
*Pace water radiator.
*Samco boost/water hoses
*Bailey oil seperator
*Mocal oil catch tank
*Spec-r header tank
*GRS intercooler
*Thermotec lagged T3 manifold



Think thats it

[nosworth]

the new management is from a company called emerald..
http://members.aol.com/emeraldm3d/
I dont know what size a frst turbo throttle body is but the most common ones I have seen used are a 2l mondeo or an RS500 one..
The rover/frst inlet is one of the better setups flow wise as well..
What rpm is your peak power and torque at?and also does it rev all the way to the limiter?

[FezzR]

nosworth - why have you gone for 9 injectors or even 5 for that matter, have u not found that will flow enough?

am i not right in thinking that sunny is only running 4?

[AdrianFRST]

Reasons for using 8 injectors over 4:

- 4 won't flow enough and the management is incapable of controlling large injectors at idle and low rpms. I suspect EEC-IV can't open and close them quick enough to be able to use high flow rate injectors. On older perf cars like the RS500 Cossie's Pectel Super 8, 4 run at idle, then the other 4 come in later.

Decent aftermarket systems like Autronic, Pectel, Omex etc can fire the injectors at a suitable rate so as they are only open for a very short period of time. This is how you can fuel for huge bhp with only 4 and still idle nicely.

- 4 won't flow enough and the impedance of the injectors makes it hard or impossible to obtain any with a higher flow rate than standard, so they are run in pairs which fire at the same time.

I belive they are wired so that the ECU is unaware there are 8 and to all intents and purposes the two injectors function as if they were one larger.

- showing off, inability to spec or locate the correct flow, trying to be different, or making use of an existing 8 injector manofold (ie the RS500 one).

Given that EEC-IV can run over 300hp on 4 without problems, you can probably make your own mind up why a car would have 9...

[FezzR]

Thanks Ade

[Fiestasi-Andy]

MOONDUST FRST: Nice spec

[GavStyli]

marc, dont forget to add 100 shot of nos