right gonna build an efi cvh from parts i have spare

i have an efi xr3i

i simply wanna know if i can use the head from the xr3i engine on the bottom end of an rs turbo mfi item

are the any differences in the xr and rs heads or iare EFI heads all the same?????

i had herd somewhere that to convert to efi u can use xr2i parts e.g head and inlet

 

the inlet ports on the efi head is diffrent to the rst thats ehy you need a head or a plate so answer to your question is yes you can use them

 

ok i basicaly just wanna know if i can put a rs turbo bottom end on an xr3i efi top end

so the head will all line up to the bottom end

loom hean and inlet are all there already as i have complete car (my daily)

 

yes efi top end fits stright on the rst bottom end the only thing the bottom end wont have is the hole for the cps sensor (unless its a fiesta rst bottom end)

 

cps semsor hole whats this can i make one????

 

yea the head fits however the port shapes are different between the EFI and MFI and because of this you require an adaptor plate you can get these from oddkiddcreations.co.uk

 

right the head is toatal complete wiith the efi manifold on it its a complete efi top end can find the plate u mean on his site think i better have a word with him wanna go cossie managment anyway

 

i have modded the standard head to accept the efi inlet , you simply mark out the non efi head with a gasket cut from the inlet manifold.
you do not need to open the head fully to the shape of the inlet manifold , you could probably be 1mm inside from the top the gasket without any problem

my uk import xr3i s2 has been running with this for a couple of months without a problem

efi head now to be fitted to my gotech t34 xr3

 

Personally, IMO, thats not a good way to do it, the gasket will be very weak and you run a high risk of blowing the inlet gasket out!

 

the head is not a problem i have a complete EFI Top end

but what whppens when people do the efi conversion on mfi cars never herd of anyone drilling holes

 

If your using an MFI block you will have to either drill a hole for the CPS, or use a trigger wheel on the alternator pulley.

Or, you can use the EFI block and drill the oil return cos its a N/A block

Or just get a FRST bottom end.

Those are your options

 

trigger wheel it is by the sound of things swapping pistons between from a 30k to 150k engine dont float my boat,

gonna go see jano as i gotta get parstand he only round te corner

but safechav thanks for ur help mate u def no ur stuff and i always hope to hear ur advice when i post a qusetion up u talk sence unlike other poeple