235 replies to this topic

[twrminisport]

yeah the 12g295 is a good head. much better than doing a 1275 head and having to pocket the block :/
or a 12g206 head if you can get one. they are the same as the 295 but like rocking horse s**t.
problem with them is now theyre getting more and more scarce and they need to be in good cond with no cracks etc
Then you need to skim them down to the correct CR and fit new valves etc and hardened seats for unleaded etc and it can get expensive

Only thing to remember if your fitting twins is it makes the acessability impossible haha

Cheers
Jesus

[Stevee]

yeah the 12g295 is a good head. much better than doing a 1275 head and having to pocket the block :/
or a 12g206 head if you can get one. they are the same as the 295 but like rocking horse s**t.
problem with them is now theyre getting more and more scarce and they need to be in good cond with no cracks etc
Then you need to skim them down to the correct CR and fit new valves etc and hardened seats for unleaded etc and it can get expensive

Only thing to remember if your fitting twins is it makes the acessability impossible haha

Cheers
Jesus

ah dam im fitting twins to mine! AND i think hes having twins aswell

well im over boreing mine so it be alright hopefull the over bore make the pockets bit smaller

ill get some pictures up soon!

[twrminisport]

haha its worth it though the torque you get from twins is amazing. My friend who drives a 1.8 focus got in my 998 mini shot off in it with me in the oassanger seat and got to the end of the road and looked at me in disbelief "f**k me its got some torque"
If you nail it down the road you can get it to spin up in 1st and 2nd (in the dry) and 3rd (if its wet) which always puts a smile on your face in the morning

Cheers
Jesus

[Stevee]

haha its worth it though the torque you get from twins is amazing. My friend who drives a 1.8 focus got in my 998 mini shot off in it with me in the oassanger seat and got to the end of the road and looked at me in disbelief "f**k me its got some torque"
If you nail it down the road you can get it to spin up in 1st and 2nd (in the dry) and 3rd (if its wet) which always puts a smile on your face in the morning

Cheers
Jesus

My engine used to spin in the dry all the time

in the wet it was worse!

just had so much power! yet it was standard 998 to my knowing

[twrminisport]

haha cool
Looking foward to some more pictures

[Stevee]

i shall be giving an update at some piont! if i can find the phone cable :S

but if anyone could help me

few little bits

998 Crank what stroke is it?
What cc dose a standard 12g940 cambers have?

need to work out compression ratios

been told 10:1 is good?

do not know! maths hurts my brain ):

[1984mini25]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

[Stevee]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

i love you haha

thank you!

couldn't find it anywhere online ):

[1984mini25]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

i love you haha

thank you!

couldn't find it anywhere online ):

Carefully people might talk lol

Just as well that I kept copies of all the data from when I was working out mine then.

[Stevee]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

i love you haha

thank you!

couldn't find it anywhere online ):
Carefully people might talk lol

Just as well that I kept copies of all the data from when I was working out mine then.

Ill Keep it hush then ;]

and thanks im just wiriting up pages of Forumla and stuff for working it all out

over bore sizes and that all fun and games

thanks karl!

[1984mini25]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

i love you haha

thank you!

couldn't find it anywhere online ):
Carefully people might talk lol

Just as well that I kept copies of all the data from when I was working out mine then.

Ill Keep it hush then ;]

and thanks im just wiriting up pages of Forumla and stuff for working it all out

over bore sizes and that all fun and games

thanks karl!

Don't forget to add the size of the pockets as well, as they also have an effect on the overall compression ratio.

[Stevee]

but if anyone could help me

few little bits

998 Crank what stroke is it? - 76.2mm
What cc dose a standard 12g940 cambers have? - 21.4cc and the standard CAM4180 is 25.5cc

i love you haha

thank you!

couldn't find it anywhere online ):
Carefully people might talk lol

Just as well that I kept copies of all the data from when I was working out mine then.

Ill Keep it hush then ;]

and thanks im just wiriting up pages of Forumla and stuff for working it all out

over bore sizes and that all fun and games

thanks karl!

Don't forget to add the size of the pockets as well, as they also have an effect on the overall compression ratio.

ah you bugger!

best try find a tech drawing of how big to have them

Benpopham is running compression ratio of 10.75:1 on his 1060cc engine

is that about the area i should aim for?

or little less?

[1984mini25]

ah you bugger!

best try find a tech drawing of how big to have them

give me 2 secs...

[twrminisport]

haha i was just about to find out for you.
Have you got microsoft excel?

Cheers
Jesus

[Stevee]

no ive typed up everything on word at the moment

i can get excel just need to install the disc

but that can be a job for sunday i recon at this rate