37 replies to this topic

[Spitz]

12g940 chamber volume is 21.4cc

[minilee94]

My head is casting 12g940 but is stamped as a 12g938 head with 30ml exhaust valves and 35 inlet

[minilee94]

And Pete bill is not building my engine I am he is only machining it

Edited by minilee94, 07 March 2013 - 09:49 PM.

[MRA]

Ive got 21.4cc on my head drawings, however there is no tolerance given.....

[minilee94]

So what is the point if people saying that is the right and no body mentioned that's its wrong before

[MRA]

because it could have been modified in numerous ways, which would cause your CR to be potentially too high or too low :-(

[MRA]

Have you ever built an engine before ? are you geared up to build an engine ? do you have the knowledge to do so ?

I ask these questions simply because you wouldn't be the first person to save money by building it yourself..... only to find it actually costs you more in the long run when something goes wrong :-(

[minilee94]

Okay well I spoke to bill Richards today and told them 22cc and 7cc pistons and they never said that ain't no good

[minilee94]

No I havnt built an engine before but I won't learn given the engine to some one when I could do it my self

[MRA]

Did someone say it was no good then ? ....

[minilee94]

No but obv they people on here are saying its wrong such obv will be no good if it ain't right

[MRA]

No I havnt built an engine before but I won't learn given the engine to some one when I could do it my self

That is correct, however, you need to be prepared, in a clean environment, cleanish is just not good enough. and the correct procedures need to be used....

If you had an accident and needed surgery would you want a doctor or a nurse to perform on you ? after all they have to learn as well !

[MRA]

No but obv they people on here are saying its wrong such obv will be no good if it ain't right

What is OBV ?

[minilee94]

sorry Obviously

[minilee94]

My garage is a clean garage with a bench etc and no I wouldn't but that is different and if there is things I need to know i can find out

Edited by minilee94, 07 March 2013 - 10:37 PM.