TwoCossieBob

Hi All

Please can someone help? I have an urgent need to get my MKII XR2 Fiesta racer going again after an engine failure!

Will a MKIII XR2i CVH engine/head be ok to use with my MK11 Fiesta XR2 standard pre lean burn Weber (DTF?) carb and Ford ECU? I must retain the carb because the regulations do not allow the use of fuel injection on my car.

My blown up XR2 engine was a pre 1986 lean burn one with the true hemispherical head chambers. Can I just swap the engines over and retain my carb or are the compression ratio's or the fixing of the relevant inlet manifold different? Does it make any difference to what I plan if the XR2i engine was originally mechanically or elctronically fuel injected?

Does anyone know?

Thanks
Bob

costina

iTrader: (1)

Bob,

fuel injection on a 2i is electronic,as for inlet manifolds when i went to get a new gasket for mine i was asked is ti a 5 or 6 bolt manifold/head?

CVH = Headache

Regards

Paul

johnnysash

it will not work on its own as the efi heads had cut outs for the fuel injectors, so you you will get massive air leaks from them . however you can get adaptor plates that will block off these holes, or you could "chemical metal" the gaps that are there. there may also be an issue with the injection head running a different compression to the carb head...... although i think they are similar enough, if not the same, but you are using this for racing, so i am sure performance is of the upmost importance to you

good luck anyway

turbodoctor

wont work.the e.f.i stuff wont work on the 1986 carb c.v.h cos you need the crank sensor and your engine doent have a place for it

turbodoctor

you can run mfi with just the manifolds n the the other bits like meterin head n stuff, all the underbonnet stuff thats not part of the engine

turbodoctor

c.v.h was sick in its time and is still to this, by day pumping out 190 bhp , 132 standard and 240+ with zvh conversion. from a 20 year old design and one cam!

johnnysash

yeah sorry just looked at my reply again, i was assuming you was trying to bolt the carb to the efi head

costina

iTrader: (1)

What about the pinto came out in a mk3 cortina in around 1974 and the basic engine is still powering millions of fords !!!!!!!!! kit cars etc

Not forgetting the cossie which still using the same initial Block design can now crack 900 BHP( with loads of cash )

Now thats 30+ years old

turbodoctor

i agree mate, a mate of mine used to race pinto fez at blyton. bit young to remeber them kinda cars on road n i cant aford a cosie yet

think yours looks sick mate n id be proud to flex a car like that