Are these calculations ok
Are these calculations ok
Author
Discussion

LongBaz

Original Poster:

2,097 posts

246 months

Friday 13th November 2015
quotequote all
34 CC in head

22 CC in piston

9.3 CC in std gasket

7.4 CC in valve cut out and piston below deck.

72.7 CC TOTAL

Swept vol = 593.5 CC + 72.7
_______________________

72.7

CR = 9.16 : 1

I have 1.28mm head gaskets, can you you get thicker ones.

Thanks
Barrie


Edited by LongBaz on Friday 13th November 16:12

macdeb

8,758 posts

284 months

Friday 13th November 2015
quotequote all
Hi Mate wavey are these burreted volumes? How come 34cc heads, 14 bolt? 1.2mm thickness gasket is quite thick anyhow. Which leads me to ask what pistons? need deep dish. confused

Alexdaredevils

5,697 posts

208 months

Friday 13th November 2015
quotequote all
LongBaz said:
I have 1.28mm head gaskets, can you you get thicker ones.
Is that compressed?

LongBaz

Original Poster:

2,097 posts

246 months

Friday 13th November 2015
quotequote all
Hi Mac
Yes these are burrted volumes. The heads have been worked on to get 34cc.

Hi Alex
No, that's not compressed.


Sardonicus

19,440 posts

250 months

Friday 13th November 2015
quotequote all
Alexdaredevils said:
Is that compressed?
Yes that's the exact figure I got from OE Elrings

LongBaz

Original Poster:

2,097 posts

246 months

Friday 13th November 2015
quotequote all
So it's 1.28 compressed?

Sardonicus

19,440 posts

250 months

Friday 13th November 2015
quotequote all
That's 120k miles compressed fire ring measurement, that's not going to change any noticeable/worthy amount fitted, nice to see your getting on Baz

LongBaz

Original Poster:

2,097 posts

246 months

Friday 13th November 2015
quotequote all

Yep it's making progress
Probably going to get some MLS gaskets.
Also bought adjustable pushrods to make life easier.

Edited to say I am not the one building the engine. 'Thank God' I hear you say

Edited by LongBaz on Friday 13th November 20:34

DangerousDerek

8,676 posts

249 months

Saturday 14th November 2015
quotequote all
Bazzer, you thinking of going a little thicker on the head gasket or just fitting the MLS for a safer option?

I have a pair of unused Cometics here. They are 40 thou but are for a 94mm bore. Remind me please are you at 94mm now or 96mm?

Pupp

12,948 posts

301 months

Saturday 14th November 2015
quotequote all
LongBaz said:
Also bought adjustable pushrods to make life easier.
Does that imply you're sticking with the stock rockers? Well worth going rollers while you're doing it...


Edited by Pupp on Saturday 14th November 16:42

LongBaz

Original Poster:

2,097 posts

246 months

Saturday 14th November 2015
quotequote all
I'm 96, going for the safer option. Thanks for the offer.

LongBaz

Original Poster:

2,097 posts

246 months

Saturday 14th November 2015
quotequote all
Pupp said:
Does that imply you're sticking with the stock rockers? Well worth going rollers while you're doing it...


Edited by Pupp on Saturday 14th November 16:42
Would like to have gone with roller rockers, however the cost is a factor.