Hey! I'm interested in a Chip to my car, but I have some doubts that I'd like to clear out:
I have a Ford Escort MK4 RS Turbo, with:
- EFI OFAB management;
- Beije 701 Bosch Injectors;
- Green air admission;
- Cosworth fuel pump;
- T3 turbo;
- Accralite 1,5mm oversized pistons (compress ratio about 7,8:1);
- H Beams THS performance UK;
- a big Airtec intercooler;
- Forge Motorsport actuator;
- Forge Motorsport dumpvalve;
- Piper T285 T2 cam;

My doubts are:
- what's the correct/best fuel pressure?
- what's the correct/best air pressure?and how much Turbo boost can I get, with this configuration?
- do I need any injection mechanical tune/"update"(more material), or the chip takes care of all these tunes (and these specs are enough)

I want this car to run good, but also to run for a long time...so I'm looking for something reliable and powerfull (the best compromisse I can get, of corse).

regard's

 

standard management won't like anymore than 9/10psi some even less, is it even running on beiges with standard management??
If you need a chip on it- msd are the best around for frst OFAB.
phone them up and tell them your spec and they will sort you out.

 

If you're running beige's then it will already be chipped. With this chip you can then run 1 bar of boost (14 psi). As for fuel pressure I'm not sure, standard EFi FRST's run 3.5 bar.

Lee

 

A standard frst fuel rail runs 3bar- its is common to turn this up to 3.5 bar.

 

correct me if im wrong, i thought with ofab management and map sensor would let u run more than a bar of boost?
Dan

 

the standard one is only 2bar- 14psi of positive and 14psi of negative.
you can fit a 3bar one and therefore run more than 14psi but its not standard- tis an easy upgrade but a few psi after 14 the beiges run out of juice anyhow.....

 

right gotcha!