24v turbo 4x4 MK3 escort

[robrs2]

Looks good . What are the rear uprights based on.

[v6gerry]

Looks good . What are the rear uprights based on.

Hi they were made by LEDA to suit the car I spoke to them they told me what measurements they needed so done that and they made them , they are very much like the front coilovers which are xr4x4 .

[Lemon-Ade]

That's a proper job you made of the shell  looks great Gerry

[v6gerry]

Thanks ade every one seems to cut all the floor and wings out these days , which i think is a lot more work . my pistons are being made in germany and will  have a REF number which people can order through Tom .is your getting more bits added to it looking more like a engine ?

[cossiemk2]

Do you have a spare block Gerry or are you rebuilding the old one?

[v6gerry]

what do you mean by the spark block the pack which the 6 HT leads come out of ??

[cossiemk2]

No I mean a spare engine block.....

[v6gerry]

SORRY I miss read your post !! yes I had a bob engine which I broke up , so using that block with my boa crank and rods ,

[Dave]

Great work on the shell mate! 

Yeah the graph tells the story.

You can see by the boost plot & torque curve the wastegate has control by 2600rpm. This means you have reached the max turbine flow by about 2600rpm. The wastegate can usually give you another 15% at least or so on top of that depending on it's size then when you hit that limit the back pressure is going to really ramp up & start to cause reverse flow in the combustion chamber as you have more exhaust pressure than intake killing power.

The drop in power reduces exhaust flow but you still have so much back pressure due to higher revs that the wastegate is forced open. The two combined causes the boost drop in your case because we know the compressor can flow enough air for that power.

A restricted exhaust flow creates high EGT's combined with the slightly lean mapping on that graph that again causes high EGT's is what killed your piston due to detention caused by extreme EGT's.

You have stuck a turbine section intended for a 2.0L engine onto a 2.9L.

The bleed valve reduces the boost pushing on the actuator so it can withstand the back pressure for longer.
However you will see the same happening again just higher up the rev range or if you run more boost.
Also the turbo will never make the same power on the 2.9 engine it can on the YB, the turbine will limit it just like the washer's fitted to restricted mopeds!

[v6gerry]

Thanks Dave it does make some sence to me but don,t really under stand it to be honest , like all things I will talk to tom about it ,

thanks for your input Dave .
gerry

[turboshed]

The only way to see if your turbo is too small (which it is) would be too monitor exhaust pressure pre-turbine and also compressor side.compare the 2 over the power map and you should see a peak of back pressure and the fall off bhp

[Dave]

Yeah like as Gray says once you have 4 bits of info in graph form it will all make complete sense.
You can see exactly what is happening & how they affect each other.

Boost + exhaust back pressure pre turbo + EGT at input of turbine + torque plot


As a general rule (except VNT's etc) if the turbo hits a bar of boost before half max rev's it's too small.
But again it depends what you're looking for. If your happy that's what matter's.

[v6gerry]

thanks for all your input guys but its getting toooooooo deep for me to understand (sorry guys ) will post up when engine is dyno but it still might have the T3 on as im doing a new plenum for it and prob won't be ready in time , so will change things then cos the STD plenum we all no will restriced the engine .

cheers gerry

[v6gerry]

small update been doing a bit while waiting for engine to be done , as it gets a little warm inside of car on long journeys , so lined tunnel back to gear stick hole with heat reflective matting , took me most of a day with making cardboard templates and edging each piece all round with the foil tape  , it turned out good well pleased hope it works , next job is to alter inner wing for bigger turbo as the T3 is about 15mm off inner wing ,

[v6gerry]

Got my parts back from powder coating , and spraying , got to wet sand paint of the cosworth badges to show alloy . no news as yet on engine still waiting for piston to arrive 

[capri71]

like the blue... looks mint

[v6gerry]

Cheers bud its same blue as the car ,

[capri71]

Its very nice as blues go. Ive decided on blue for my covers too but not sure if i fancy a flat crinkle or a nice shiny metallic. VHT do a fake anodise system with a silver base and coloured lacquers that caught my eye too. Yours looks proper moody and should stand the heat no problem when you think how bonnets get heat cycled. Can't wait to see them on the engine

[Lemon-Ade]

Looking really nice there mate  its the time to do it all while you wait. The pistons must be any day now?

[mk2 cossie]

those parts look very good indeed Gerry 

How long have you had to wait for the pistons so far?
It's bloody annoying when something like that holds up the build 

[v6gerry]

Its very nice as blues go. Ive decided on blue for my covers too but not sure if i fancy a flat crinkle or a nice shiny metallic. VHT do a fake anodise system with a silver base and coloured lacquers that caught my eye too. Yours looks proper moody and should stand the heat no problem when you think how bonnets get heat cycled. Can't wait to see them on the engine

thanks its only car paint 2k but solvent not water bourn paint , will look loads better then the flaking paint that was on them was corroided as well . time will tell with the heat !!!!

[v6gerry]

Looking really nice there mate  its the time to do it all while you wait. The pistons must be any day now?
[/quote

Cheers mate yep get the little bits out the way , I've altered the inner wing ready for a bigger turbo    , I did think the wait would be longer then what tom quoted but  it out of my hands , got to phone tom about something see if he has heard anything , won't make the pod on 1 june now sadly . :'( Don't want him to rush it now , be ready when its done ,

[v6gerry]

those parts look very good indeed Gerry 

How long have you had to wait for the pistons so far?
It's bloody annoying when something like that holds up the build 

Hi took engine up there end of jan , Tom got piston in which he thought would be ok for it , but wasn't happy with them so back they went , decided to get them spec made got drawing sign off and about 3/4 weeks ago they got in touch with him and wanted something confirmed so sent the drawings back to him to be ok , he said they are now   being made as we speak so won't be long ,
that's about all I no , at least I no it will be ok when I pick it up , and he will dyno it so back into car, get  MOT and play  .
Hows your going now you got the emerald on it ?

[mk2 cossie]

Hi took engine up there end of jan , Tom got piston in which he thought would be ok for it , but wasn't happy with them so back they went , decided to get them spec made got drawing sign off and about 3/4 weeks ago they got in touch with him and wanted something confirmed so sent the drawings back to him to be ok , he said they are now   being made as we speak so won't be long ,
that's about all I no , at least I no it will be ok when I pick it up , and he will dyno it so back into car, get  MOT and play  .
Hows your going now you got the emerald on it ?

It's geting there slowly, just need to get to track and road still 
But finding the time with it as my only form of transport is a bit of a tricky one 

[v6gerry]

Hi took engine up there end of jan , Tom got piston in which he thought would be ok for it , but wasn't happy with them so back they went , decided to get them spec made got drawing sign off and about 3/4 weeks ago they got in touch with him and wanted something confirmed so sent the drawings back to him to be ok , he said they are now   being made as we speak so won't be long ,
that's about all I no , at least I no it will be ok when I pick it up , and he will dyno it so back into car, get  MOT and play  .
Hows your going now you got the emerald on it ?

It's geting there slowly, just need to get to track and road still 
But finding the time with it as my only form of transport is a bit of a tricky one 

at least your using it  all things like this you have to make time for it , as all we seem to do is chase our tails LOL !!! spoke to Tom ( engine builder ) today and he had just spoken to them about pistons , as he is waiting for 6 sets of piston to arrive as his customers are on his back , mainly race engine and racing is well under way now . he said he should have all 6 sets within 2weeks , and we will prob change the T3 compressor to a T4 to pump more air into the V6  so won't be long now !

[Lemon-Ade]

T4 FTW  Tom is more than a builder he does the whole package, a very well respected tuner, dyno operator with great customer service.

He supplied and built an engine recently in a rs500 for someone I know and he is very pleased with Tom 

[v6gerry]

yes mate he no his stuff for a yb people say its Tom or Harvey gibbs  !! he dose it all mate the only stress I've got is I want my engine back ! but that is out of mine and Tom's hands at mo , tom said they said within the next to weeks  I've altered my inner wing ready for the T4 its only about 1inch bigger in o/a dia !i'll post a pic up when I've painted it back in with inner wing . how is yours going mate ?

[v6gerry]

Hi all they here the long awaited pistons for my new low comp 24v engine . Tom said they are good for 800 bhp !!!! won't be long now might be on the dyno this time next  :  . [/UR
[URL=http://s1042.photobucket.com/user/gartrac/media/DSC_9602.jpg.html]

[mk2 cossie]

Very nice indeed Gerry 

Shame to hide them inside the engine though 

Just realised the heat proof mat pics further up, looks very good fitment wise. Was it all a swine to fit?

[v6gerry]

mm yes shame they wont be seen  :'( the matting took me all day I made cardboard templates then trimmed the matting in and sealed the edges with foil tape , should help to keep cockpit cooler