Hi
Is it easy ( just the ECU) too put an P8 in sted of L8 cat on an 92- 4x4 ?

 

As long as the car has a working lambda sensor installed, yes.

 

you need no other mods ????

 

None.
Obviously the software you put into teh ecu has to be suitable for your engine and mods.

 

no 2,5 bar map ? standar ECU

 

No then, as the Escort Cosworth has a larger turbo, possibly a chargecooler if an early model and obviously the wrong map sensor too. I naturaly assumed you would know the software needs to be changed as the 2 engines are different as std.

 

e-mail sent

 

so, it's not a good idea to use the p8 instead of the l8, to have a closed loop?

 

P8 can do closed loop fine, but ANY ecu needs to have the correct chip to run the engine. Its not teh P8s fault that as standard it runs a different engine.

Plus, P8 is far more expensive, it would be cheaper to use your L8 IMO.

 

as for my self i was thinking L1 schanged too L8 is better on my 86 . later teknologi . Then P8 is newer than L8 . Thinking P8 has an overboost ? and not puting the HP up , just a litle bit more som sec ?
closed loop - pleas explain , not familiar ........

 

for the closed loop, you can search "closed loop" on the website, you will understand what it is

 

bige 'closed loop' is short for closed loop fuelling.

in simple terms, it mean that the amount of fuel that is injected into the engine is checked by the lambda sensor. if it is too much, less is injected next time and then it is checked again.

i.e.

inject <-
___v___^
check ->

 

if you fit a pectel board on a p8, you need the lambda ?

somebody told me that it's not necssary

 

up

 

the pectel software on p8 doesnt use the lambda probe, no

yes, the p8 can copntrol overboost aswell, but it needs a 2port valve, like the one fitted to the esocs, the std sierra amal valve wont work. it will click and operate , but it wont work as a boost control device.

 

thanks

so to resume, with my pectel board on a p8, i won't fit a lambda on my sierra, and i need to desactivate the amal valve?

what the t35 escort use to control boost instead of amal valve?

 

thanks

so to resume, with my pectel board on a p8, i won't fit a lambda on my sierra, and i need to desactivate the amal valve?

what the t35 escort use to control boost instead of amal valve?

 

that's a bit shit that the pectel board doesn't do closed loop. why use a pectel board then? why not go back to a std one, so that you have closed loop?

the escort uses what's called a 'Lektron valve' in conjunction with a calibrated bleed t-piece. IIRC it works in a similar way to the air injectors, which is opposite to the sierra amal valve.

do a search for it, there was a topic a while back about it (maybe before the crash?)

 

this is the big question, and the answer usually comes out as because i want to either be able to map it myslef using the pectel software, or a want to run coilpacks, WI, ALS etc without the need for any more hardware as the pectel software supports all this whereas the std software doesnt

 

so what you want is a software solution for P8 that can do all of those things including closed loop fuelling?

 

yep, stu's software can map the fuel, boost etc, but hasn't been writted to enable the other things, it probably can be done by just chaingin a 0 to a 1 or a 00 to FF or similar, its just know which one in the HUGE list of them in teh ecu's memory

 

i'm sure that it can all be done

 

with enough time by trial and error , yes

 

Interesting reading

 

or by reverse engineering the original software like pectel did

 

yep, but who could do such a thing now - a lot of time money and effort went into it, and then if u did it again, you would want that investment protecting, roll on an encryption board....

 

thanks

another question, where find the pectel software ???

It's a free one ?

 

there are a few copies knocking about, (think you need a dongle for it to work, not 100% sure though) and then when u've done the mapping through an emulator, you still need a pectel board for it to work when burnt to a chip.

i'd just get it mapped by stu or similar, someone who knows what they are doing, you don't want to practice on your own engine... well i dont anyway

 

thanks, it was just for looking and try to understand how it's work

i have a pectel p8 board, i will fit it on my cossie in few days

Another question, i suppose that i need more looms to have for example the air to air boost controleror or als ????

 

you need a small sub loom for the air to air , and the als it just a pin on the ecu which through a switch to activate goes to ground on the bodyshell. most of the pectel developed stuff like that has pectel sub looms already available IIRC

 

thanks

but the chips had already the programfor that ?

 

cool

 

could you tell me if i need to replace the amal valve by the lektron (and the loom) ???

 

bttt for an answer to sygjim about the 'lektron'

 

yep, as the 2 walves and the pipework connect to them and the actuator are completely differenrt,

the lectron valve control the amount of boost, whereas the amal valve just stops boost increasing at a pre detirmined level - - in an oversimplified view...