Quickie....

I'm wiring ofab into my mk5 escort but I don't have the speed sensor that plugs inbetween the speedo cable and gearbox.

What's it's function and can I get away without using one.

CheeRS

 

You won't get very far without that mate

 

Yes you can get away without it!
It just sends a signal to the fuel/trip computer so it can work out your MPG, not needed if you dont fit the computer! (that annoying thing that always beeps when your low on fuel!)

I'm Karl and I drive a cabby too! What a coincidence

 

Cool m8, thx for that

Yeah the missus and I had the pleasure of an almost identical car to your sig for about 2 yrs. Was on a Q plate, same colour, rst bodykit & bonnet, full rst engine & box n brakes, running about 12psi and rolling on some similar wheels too! TSW type Rs or something I think.

That was about 2 years ago and it needed suspension work n engine was running hot & supping coolant, prob headgasket I know but bodywork was getting a bit tatty too so we flogged it

Missed the sound of a dump valve and the crazy torque of a turbo ever since

A couple of months after selling that we bought what you see below. The wife saw it on ebay and had to have it lol. Only prob was it only had a 1.6 CVH on a carb in it so shall we say overtaking was a tad embarrassing

However! There's about to be a beast reborn!

Took it to Boggy's to get it tuned as it was running like an even worse bag of crap than usual and a poorly head was diagnosed. I whipped the head off to find one of the cam followers had a crater in it like u'd normally see on the moon lol. Scouring ebay and calling up loadsa scrappys didn't turn up an identical head and just a cam was too much too spend on the old engine anyway in my opinion.

So..... a nice m8 of mine said 'i've got a nice EFI turbo you can buy off me' and this's where i'm at right now.....

old engine & box out
separated them
stuck old box onto efi turbo block
chucked 'em back in engine bay
slapped on efi head
fiddled about with radiators to get a bit of space for intercooler (nice shiney Radtec one )
bolted turbo on
bolted inlet on
just about retrained myself as a plumber doing all pipework lol
swapped my driveshafts whilst I was at it as they were both bent? So i've been told by the guy who changed my gearbox recently anyway...
got a nearly new off an 1993 xr3i fuel tank off ebay for Ł20

So i'm about to drop old tank off n plumb in new one,
Graft in the EFI engine loom to my old prehistoric setup (was running DIS coilpack thingy)
then cross loadsa fingers and press the ignition button lol.

Ooooh no lsd box with a fair few horses what joy to come

So that's it for now i'm off to do some more today n tomorrow....

No doubt as I get insanely stuck with the wiring i'll be asking more questions hehe.

Thx again Safechav n Karl

 

Mate.......you are SO WRONG. THe fuel computer requires the signal, but you look at an EFI car without a fuel computer......it has a speed sensor.

YOU WILL NOT get far without the speed sensor

 

Hmmm..... that i dont know about, MFI for sure cos ones without the fuel computer dont have them but EFi i cant say for defo thought they were only for the computer! What would the EFi need to know the speed for if it doesnt have a fuel computer??

 

OFAB will run without the VSS but not without some problems, the most usual being stalling when revs are dropping to idle rpm. It would be best to get one fitted but you can run without it.

 

Alright then..........look at an XR2i. They never came with fuel computers.

I absolutely guarantee every one fromt he factory has one. Wanky MFi engines dont need a speed sensor because the management is shit, electronic injection requires more information to work, hence the speed sensor.

 

I'll have to source one then.

I also need a Fiesta charge pipe to throttle body pipe, brake servo to inlet manifold vacuum pipe and fuel filter to fuel rail pipe.

Sheesh it'll be worth it