Conversion questions?
Turbo Mini Forums

Ive been reading old posts for a few hours now and still have a few quierys to try get my head round this.

Im looking to convert my n/a 1275 a+ to run a turbo.

Firstly from what ive read there is differences between the heads, can the n/a head be used without mods or am i just better off getting a turbo head with the sodium cooled valves?

Next thing is the pistons and the compression ratio,
What approx CR would result from using +40 13cc machined 21253 pistons from morspeed
with an standard head (either the n/a one or a turbo one)?

Quiet, can you hear it rusting?

firstley theres no problems in using the standard head providing you use

the minispares stainless 214n race valves these take the additional heat!

the heads are the same except some early heads without going into detail

please calculate the CR ratio youselfe using alex F excellent calc website here.......http://www.afracing.com/CR.xls

i suggest you please read the posts on FAQ section

Thanks for the reply.
Ive been reading mountains of pages for the last two evenings now, think enough is going in to give me some idea

Quiet, can you hear it rusting?