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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » compression = power?? » Post Reply
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RCS |
posted on 3rd Apr 08 at 21:33 |
They do. | |
Warren G |
posted on 3rd Apr 08 at 21:11 |
say what :boggle: | |
sand-eel |
posted on 2nd Apr 08 at 22:33 |
do those heads not have squish zones then? | |
Warren G |
posted on 2nd Apr 08 at 22:05 |
i am | |
RCS |
posted on 2nd Apr 08 at 21:55 |
It's nothing to worry about if you're not burning any oil. | |
Warren G |
posted on 2nd Apr 08 at 21:50 |
done 56k | |
RCS |
posted on 2nd Apr 08 at 21:46 |
Will be down to wear on the engine. | |
Warren G |
posted on 2nd Apr 08 at 21:16 |
just seems although its down slighty | |
RCS |
posted on 2nd Apr 08 at 20:34 |
Compression test only measures how well a cylinder seals. To an extent it has an affect on performance. But it doesn't indicate true cylinder pressure. If you want to compare performance using cylinder pressures use BMEP. | |
Warren G |
posted on 2nd Apr 08 at 17:41 |
ttt | |
Warren G |
posted on 29th Mar 08 at 12:54 |
quote: the cylinder head you sold gavin had 250psi compression a tyical standard 1600 has 225psi how did you get it higher when all the combustion chamber works been done? so, it could be my rings if what your saying? how do you work out compression ratio without taking the head off and cc ing it? | |
Dave A |
posted on 28th Mar 08 at 20:07 |
compression and compression ratio are 2 very different things, compression ratio can be massively affected by working the combustion areas on the head but compression itself wont be affected by more than a few PSI. | |
Warren G |
posted on 28th Mar 08 at 19:41 |
say i did, what difference would it made | |
Vaux Lad |
posted on 28th Mar 08 at 19:35 |
More compression will mean you may have to run high octane fuel though, and have it mapped to run that fuel. | |
Warren G |
posted on 28th Mar 08 at 19:25 |
quote: erm, no! quote: well will be reving high, and that 30psi of compression could = more power | |
andyc1234 |
posted on 28th Mar 08 at 19:22 |
if its had combustion chamber done then yea it will be slighty lower. not sure if you wont notice it though without having a silly spec relying on high compression | |
Vaux Lad |
posted on 28th Mar 08 at 19:09 |
Did you measure the chambers before and after? | |
Warren G |
posted on 28th Mar 08 at 19:02 |
lots of chamber work done | |
andyc1234 |
posted on 28th Mar 08 at 19:00 |
ported head shouldnt chage compression unless its had the chamber side worked on | |
Warren G |
posted on 28th Mar 08 at 18:57 |
most 1.6 x16xe's have (from what ihave tested) between 200-240 psi compression |