Hi all,
I have a Fiat coupe 20v turbo (1999).
I want to change the fuel injectors to 500cc.
Do you know how and where to buy from please?
Cheers

Which ECU are you running?

dastek 2

Talk to barbs at www.torqueitalia.com they list 440cc but they might be able to get 500cc one's from some where or at lest tell you where you can get them from .

Thanks.
Do you know how many cc are the original injectors of the coupe?

330 cc.....

Pinin farina,

why do you want to go that high up? what are your other mods? Is it justified to move straight up to 500? why not 440?
Is your car in Greece?
Who fitted the Dastek?
sorry many questions...

<img src="/forum/images/graemlins/laugh.gif" alt="" />

Thank you ChrisB.
Finally i'll buy the bosh 465cc from http://www.fiveomotorsport.com
My car is in Cyprus.
I change pistons and turbo(gt 28-35 ball bearing) so i need bigger injectors

Not needed, I'm only running 440cc injectors which are currently around 80% duty @ 1.6bar <img src="/forum/images/graemlins/smile.gif" alt="" />

hello,

i can sell you 440ccm,525ccm, 650ccm, 750ccm.....

do you wan the 525ccm injectors

regards

Salvatore

Thank you Nitrous.
I bought the 465cc

wooo hoooo another bubble! im from cyprus 2 but live in london <img src="/forum/images/graemlins/laugh.gif" alt="" />

Hi.
Finally i bought the bosh 465cc and i have a problem.
Right now my car is in the garage for tuning the dastek 2.
The man who is tuning my car says that he can't get fuel enough when it pass 1 bar.
I have a racing pumb so we believe that the injectors are small.
Do you believe also that i have to change again the injectors?

What turbo are you running? I can't imagine how your 465cc injectors can be the problem as they can fuel well over 500bhp with the correct setup. Need to look at fuel pump, MAF etc.

Depends on what fuel pressure they are running at. If they are rated for a low pressure by the manufacturer then running on 3.8bar instead of 3 bar could be affecting there performance. Also depends whether you are sticking to max of 85% duty.

Can you change your base fuel chip to a default higher fuel map, therefore you are removing fuel with the unichip rather than adding?

Chris

did you buy hi-impedence injectors? The Bosch motronic system must have hi-impedance or else must have ballast resistors attached.

if it is a GT2835 as in the HKS unit you should only need 380cc/min @ 3bar or at worst 440cc/min@ 3bar as the turbo capacity is only 408BHP.

If it is a GT2835 as in a GT28 turbine and GT35 compressor then you're going to need 560cc/min at least.

Have you also uprated your fuel pump and done the voltage mod to the pump?

My turbo is Garett gt 28-35.That's all i know.
The injectors are hi-impedance.
About the fuel pump i just bought a new one today (Walbro).
I had some problems installing the pump because it was burning the fuse so i put a bigger fuse and everything's ok now...i hope!!
How can i uprated the fuel pump and done the voltage mod to the pump?

I also have the chip of GrahamL in my ECU if this help

If it's an HKS turbo then it's a GT2835, if it's a Garrett turbo then I suspect you may have a GT3071 which will flow much more than the HKS unit at expense of lag obviously.

Garrett have also the GT 28-35 strike4A
Anyway thanks for all for your help.
I'll print this page and take it to the man who fit dastek and see what we can do.