my rolling road tune up

[lj]

the guys checked the compression as soon as it got in the work shop and it showed.....

number 1 275
number 2 275
number 3 300+
number 4 275

ops! 1.6 block, 16v pistons and 1.4 head....so changing back to 1.6 head .......

[Philsutton]

yep that compression looks a tad high lol

[Stuart]

hmmm, not the end of the world lol.

iirc Dans 1.6 used to do something like 250psi across the board.

[MC]

What was it running like?

[meritlover]

What was it running like?
very well apparently

[MC]

Whats the problem then?

What have you calculated the compression ratio to be? Did it overun? Was it detonating?

Why did you put the 1400 head on?

MC

[lj]

i had a 1.3 block and wanted the bigger valves.... then changed to a 1.6 block and kept the cam from the over engine as high lift! the ratio was about 14:1.....

[Adam]

Sounds about right.
The 1600 head has deep combustion chambers whereas the 1400 head doesn;t.