How strong are those piston?

[vrooom]

that come from MK5 (1993) escort CVH 1.4i (Central Fuel injection) As i happen notice the compression ratio is 8.3:1 or thereabout quite low for fuel injection, i could turbo the engine.

any thought on those piston and turboing the 1.4i cvh engine?

[BadgerBenji]

Why do you need to turbo the 1.4? There are plenty of turbo cvh engines around, in a bigger capacity, which is a tried and tested route. There is no replacement for displacement.

[MeLLoN Stu]

turboing a 1.4 CVH will be a waste of time.

they're not too bad pistons, if you're thinking of a turbo conversion you'll need mahle pistons.
personally i wouldn't bother as if you want any sort of power its going to need a big turbo, which sacrifices spool time.
just get an RS turbo engine or something if you must

[splatspeed]

itll work as long as

1 you dont allow detonation

2 you keep to about 9 psi you should have no real probs

you only neeed uprated pistons on over 1 bar really

as long as it dosn't get too hot you should be ok

make sure the water and oil systems are ok may consider addding a oil cooler

but a intercooler is of paramount importance

and if you do blow it getting another from a scrappy is no real problem

sean

[BadgerBenji]

The pistons arent your only concern, you will require as well, a manifold suitable for mounting a turbo, oil lines to run to the turbo, obviously a turbo, extra induction plumbing. A remap at the very minimum, not to mention a different map sensor. Add all this expense up, and it will cost more than RST lump and loom.

[MeLLoN Stu]

splatspeed said:

itll work as long as

1 you dont allow detonation
2 you keep to about 9 psi you should have no real probs
you only neeed uprated pistons on over 1 bar really
as long as it dosn't get too hot you should be ok
make sure the water and oil systems are ok may consider addding a oil cooler
but a intercooler is of paramount importance
and if you do blow it getting another from a scrappy is no real problem
sean

sorry but 9psi on standard compression just will not last. that compression ratio is in the ball park of lots of turbo'd cars, but 1.4 ford engines have head gaskets made of cheese as soon as a strain is put on them. i know this from experience lol.
can't comment on which point the pistons require changing really, but i agree with that as i can't see why they'll need changing as you'll still be running low power with a turbo strapped to a 1.4 ford CVH lol.

i'm still struggling to see the point in this, call me a cynic but the 1.4 is a pretty awful engine, converting it to turbo will cost a fair bit i'd imagine, it's going to need the turbo, a manifold, intercooler, pipework, some some means of controlling it, fuelling mapped properly, etc etc. wouldn't it just be more economical to buy something else? as the post above says, RSTs can be bought for a pittance and aren't bad at what they do. very basic, but its fun if you like them i guess. and you'll be running a fair bit more power than you would be with a blown 1.4 engine. i've never taken the american stance of there's no replacement for displacement, but 1.4litre ford engines aren't going to give enough air to drive a turbo worth bothering with, you'd be knackered if you ever wanted more than 150bhp or something reliably anyway.

Edited by MeLLoN Stu on Tuesday 27th June 03:10

Edited by MeLLoN Stu on Tuesday 27th June 03:11

[splatspeed]

the week point on uppying power usually is increased revs destroying the big ends

therefore 9 psi should be no problem with correct or over fuelling

may reduce lifespan but who cares shouold be fun with say a fiat uno turbo metro turbo ore something else fgood to learn on have fun

id leave the internals of the engine alone