small block compression ratio halp....

[Sloth]

right, having spent 3 hrs trying to work this out, my mind is fried.
basically, i have a c16se. if i fit a 14nv head, will the compression ratio go up or down. also if i fit a 1.2 spi head will it go up or down?
finally any idea on comp ratio for both combinations?

cheers!!!

[Stuart]

measure and know fo sho

[burgo]

will go up a ridiculous amount

[Adam]

What he said /\

[Damo]

What he said /\

What they both said^^^.

The 1.6's have a deep well in the head were as the 1.4 & 1.2's have the same smaller well so will massivly increase the compression ratio.

[Sloth]

funk, i want it to drop. any ideas? crank changes?

[Damo]

Fit 1400 pistons rods and crank then the 1.6 head that should drop it?

What you planning to do with it?

Turbo?

[Sloth]

yep. just read the other thread in general, best bet is getting a c16nz bottom end and using the c16se head/management etc. time to go shopping methinks...

[Stuart]

with the 1.4 crank you get a 1.4 engine.... pissing in the wind lol

[Damo]

with the 1.4 crank you get a 1.4 engine.... pissing in the wind lol

True just though of that lol.

[Sloth]

so, best bet is a c16nz bottom end, c16se head and management and the usual bits.

[Adam]

yep. just read the other thread in general, best bet is getting a c16nz bottom end and using the c16se head/management etc. time to go shopping methinks...
Whats the plan? turbo?

If so then yes to the c16nz block because it has different (lower cr) pistons than a e/c16se

[mowgli]

i was quite taken with the thread where the lad fitted a 1.2 spi crank into his 1600, and had a 1400 with about 7:1cr.

now that would have been hilarious turboed up

[bazil]

i was quite taken with the thread where the lad fitted a 1.2 spi crank into his 1600, and had a 1400 with about 7:1cr.

now that would have been hilarious turboed up

your spoiling my secret build lol,

[Adam]

I thought all 8v cranks were the same.......
Its the rods/pistons that give the stroke length different.

Or vice versa, one of the two anyway!

[Jon_nova1]

nope lol

[General Baxter]

bah high comp FTW :)

[Stuart]

indeed. 10:1 and put the boost in late

[General Baxter]

10.1,

shave about 5mm of the head, and dremal the pistons out

FTW :p

[mowgli]

10.1,

shave about 5mm of the head, and dremal the pistons out

FTW :p

who needs an ozone layer anyway???

[General Baxter]

its ok, it fuel'd adams car at the lights, when he was behind me, even cleaned his front screen lol

[Adam]

I can still taste the exhaust fumes now :(

[General Baxter]

its was nippy tho lol

[mowgli]

i could still smell it 5 mins after it left.....

[General Baxter]

that was more likly a fuel leak lol

[mowgli]

i should have lit it then seen if you could outrun it

[Adam]

It did shift that thing did, i had to boot it in my baby valver to catch you up lol

[Sloth]

o.t a little.....

cheers for the help lads.