Hi everyone,

I'm new to the forum and joined as i've been a lover of Fords for quite a while now. I started racing a Mk2 fiesta at the age of 13 and since had Mk2, Mk3 fiesta's, a moderna green Mk2 escort, and now just brought a Mk4 fiesta which is going to be a road legal track day car.

I'm basically after some information about who's done what with the Mk4 fiesta's etc. I've built a custom front subframe for the car using the original wishbone mounting subframe with other parts. It effectively runs Mk2 fiesta bottom wishbones (caster bar and TCA) but shortened with Mk3 fiesta hub and strut. The top of the strut mount has been modified to lower the suspension location point by 2 1/2" roughly. Overall the front ride height is around 6" lower than standard but bottom wishbone is pretty much flat so should keep the original geometry change (camber) through corner.

The rear is currently standard rear axle but using Mk2 fiesta front strut coil overs (4" shorter with adjustable damping and ride height). This is all connected to the rear axle with some custom made brackets but overall pretty simple to convert.

I'm now at the stage of identifying the engine etc which i've brought. It's out of a MK2 XR2 which i brought 2-3years ago. It's a 2.0l silver top zetec with 16v zetec stamped on the rocker cover. I'll be running an LSD from a RST fiesta Mk3 which the front subframe is already converted to accomodate.

So i was stripping down the engine (believed to be 2.0l) and it turns out the head is from a 1.8 RS1800 and the cams look like RS1800 too. The ECU has the code 92FB 12A650 BC and runs alongside the EDIS 4 module setup but i'm trying to work out what mix and match was made with the engine. Has anyone heard of a an RS1800 with 20 stamped on the block or do the 2.0 have the same stuff as the RS1800 head and inlet etc wise? The throttle body measured 56mm, inlet manifold has 928F 9425 LE with SO stamped on it. Red injectors with B1C on them and exhaust manifold has 928F 943 JB.

From the limited knowledge and research i've done, i'm guessing its a 2.0l engine with the head and sump etc from an RS1800 bolted to it? Is this a common thing for people to do or not? Also the cambelt had one of the small idler's missing (one which bolts to the waterpump). Is there any reason for doing this as i imagine it must alter the timing slightly? or has it just been dangerously forgotten by whoever did the work previously?

Any help on any of this would be greatly appriciated. I'm new to this so not sure how to upload photos but if someone could point me in the right direction i'd be happy to upload engine photo's etc if this will help?

Thanks very much

 

Hi Jarobi, welcome to PF

first of all, the head probably belongs with the block, as the heads on the 1.8 and the 2.0 are the same. The common thing is to take a standard 2.0 engine and just fit a sump and pick-up pipe from a 1600/1800 fiesta or escort/fiesta model.

The throttle body size is correct for either a 2.0, or a 130bhp 1.8 model. unfortunately i'm not any good with part numbers, so i can't tell you where your manifolds or ecu are from, but i'm sure someone else on here will know better than i do

as for a missing idler, no idea why! i'd probably put it back on there just to be safe! no reason it should affect timing, becuase timing is set by a bar on the back of the cams and it has completely adjustable pulleys (no keyway).

hope this info has been of some help

 

Hi MD Cos,

Thanks very much for the info. That makes me feel a whole lot better knowing the engine is probably standard and not been put together. When i brought the car with the Zetec in there were bolts and things missing all over the place on engine mounts, inlet and exhaust manifolds etc! I was concerned that if the head was put on the engine then what else could be missing???

I'm planning to do a cambelt on it before it gets put into the car for the final time anyway along with waterpump and a decent service etc but wondered if a cheap cambelt kit had been used (came with only 1 idler or something?) so i'll replace it all anyway.

Thanks again
Jamie

 

the heads on the 1.8 and 2.0 are not the same

by putting a 1.8 head on a 2.0 block you get a higher compresion ratio. i built an engine years ago for a fiesta si.

 

So if the head is an 1800 then in theory the engine will be running higher than standard compression (guessing the 1800 has smaller combustion chamber then?).

The number is 958M 6090 CC suggesting its an RS1800 head i think? Does anyone have an example number from a 2.0l head or can they be the same sometimes?

 

I don't know anything about the engine unfortunately but i do know the fiesta RS never came with a lsd as standard so have a check of your box and make sure youve not been sold a duff un

mark.

 

Hi Mark,

The box is actually out of a different car, I brought a blown up Mk2 fiesta which had a CVH turbo engine and LSD. I assumed the box was from an RST or whatever but did the usual checks to make sure it was LSD. I actually brought the car for the gearbox and coilovers it had on it lol!!

 

Good stuff matey i didt want you to get it al together then realise some thing was lacking from what sounds like a cracking build
You need to get some piccies up in the resto room though pal and to do that you need a photobucket account dont worry its free to sign up then you host the pictures there and copy the link across to here job done

mark.

 

Thanks for the info, i'll have a look at uploading some photos tomorrow then. It's been good fun building so far i must admit. The front suspension was a bit tricky getting everything right, had a few problems with the gearbox mount getting in the way of the steering rack for example, but its been fun. The rear suspension is now done so engine is the next step. I want to get it in and running with wiring loom etc sorted then its all coming out and the shell is going on an A frame i've made so i can cut all the inner arches out, outer chassis rails need cutting and welding, and i've got to cut the front chassis slightly to give clearance for the driveshafts. At the moment i imagine the outer chassis rails would touch through corner as the car is quite low and i've got a score mark on the driveshaft where its touching the chassis lol!!

After thats all sorted im going to build a lightweight cage, couple of bucket seats, arches and a lick of paint and give it a thrashing round a circuit to see how it handles