Hi guys first of all have been a great help in replying to my posts. So thank you.
I have an escort rs s2
Truing to get it running right.
So far iv changed.
Fuel ecu
Cold start senser
Throttle position senser
Check all vacuum pipes
Spark plugs and leads
Had it sent up eg timing extra.
But!!! When you put your foot down its pops and bangs then goes.
I'm presuming it's the oil going into the engine through the turbo. As there's alot of oil sitting in the boost pipes.
Would this be the oils sills in the turbo.
The turbo has literally zero play.
Are the oil sills on the compresser side which can be replaced with a 360 degree bearing. Is the 360degree part the oil sill.
Any thorts or help greatly appreciated.

 

hi i wouldnt think oil from the turbo would make it pop a bang all turbo car have some oil in the boost pipes. does it smoke from the exhaust at all. does it pop before its on boost or when its on boost

 

No it dont smoke at all. It bangs before boost eg. Bang bang bang misfire and woooossshhhh.
I say misfire. That's what it feels like when it bangs.

 

It's running bout 0.7bar of boost. Could that be an issue

 

.7 bar should be ok on a standard ecu it sounds electrical to me or it could be the metering unit i has nothing but trouble with mine so i converted to efi

 

See the ecu has a technical tunning sticker on it.
Metering head hmmm I'll get a new one see if that makes a difference. How hard is the conversion

 

not to bad you need a mk3 xr3i efi loom frst ecu and then all the efi under bonnet bits inlet manifold coil pack crank sensor ect i had mine swapped over in a day its getting hold of all the bits that takes the time

 

sounds timing related to me, or lean. where did you get the setup? if your sure the on boost fuelling is correct then l;ets assume timing. do you have a std cam/pulley? a wild cam+std pulley could cause a timing issue. also is the dizzy ok. firstly though try new plugs and/or inspect plug gaps. plugs dont last long in rst's. oil seal in turbo would be diagnosed by a. smell oil b.smoke on overun when upto temp. smoke will be almost white with a blue tinge. the oil leaks into the hot side and when hot becomes more apparent. for what its worth your issue doesnt sound turbo/seal related. just out of intrest what fuel do you use? are you using the amal valve?

 

And would you say it's worth doing. On a percantage scale

 

It has a standard pully but an apparent uprated cam of some sort if it does im not sure.
I really haven noticed any smoke but yes I am using an amel valve. And only using optimax fuel.
I had it set up at a standard garage not a specialist :/.
It has a brand new dizzy.
And brand new plugs.
Im not completly sure if it's fuelling on boost ok.
I'm trying to illuminate all possibilitys before I rolling road it

 

We set the fuel up on the mot machine was 0.6%co2 and (lean) so we set it to 2.5%co2 at 900rpm (tickover

 

probably lean onboost then. get it setup at a place where they know at least know how mfi works. could be timing ie fixed pully not compatible with uprated cam though i doubt it. get the fuelling sorted before you melt something. mfi is easy to setup but it needs doing with equipment to check a/f ratio ie a tuner. where are you located?

 

or boost leak

 

I'm in Norwich. Iv his brought a new fuel filter. And I'm pritty sure new boost pipes are needed. I don't know of any escort specialists