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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Ecotech 1800 cams » Post Reply
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RCS |
posted on 23rd Feb 08 at 06:04 |
You are measuring your camshafts completely wrong. | |
csweatherston |
posted on 23rd Feb 08 at 01:09 |
i measured mine from 1mm of lift to 1mm before close. | |
RCS |
posted on 22nd Feb 08 at 19:40 |
That duration figure means bugger all unless you state what lift value you are quoting from. | |
Vaux Lad |
posted on 22nd Feb 08 at 19:29 |
The standard cams are 241 degrees, and 8.45mm lift, so Csweatherston,that was a very accurate measurement :thumbs: :lol: | |
RCS |
posted on 22nd Feb 08 at 18:38 |
From my measurements the valve is open for 270degrees (crank angle) with 8.45mm of lift. But cam duration is quoted at a certain lift value - i.e from the point of 0.1mm of lift the duration is 234 degrees. | |
csweatherston |
posted on 22nd Feb 08 at 17:09 |
quote: last time i measured i got 240.9degree's and 8.4mm of lift. tbh, you can go crazy with duration, but unless you have the peak lift there wont be many benefits. (ie 280+degree with 8mm lift etc) | |
Dave A |
posted on 22nd Feb 08 at 10:47 |
I have found from first hand experience that regrinds are not worth the savings in cash over billet blanks. They will wear out the lifters too quickly and you often wont see the gains that a cam ground from a blank will see due to various reasons. | |
RCS |
posted on 21st Feb 08 at 22:19 |
quote: How is extra lift not possible? Just grind the base circle if there is enough material? | |
RCS |
posted on 21st Feb 08 at 22:13 |
What lift value is the duration quoted at for the standard cams? | |
Robin |
posted on 21st Feb 08 at 19:55 |
Theoretically, yes. | |
Warren G |
posted on 21st Feb 08 at 18:10 |
quote: uhuh | |
SAL |
posted on 21st Feb 08 at 16:51 |
So the moral of the story is, x16xe cams go into the z18xe :boggle: | |
Warren G |
posted on 20th Feb 08 at 22:29 |
well i know there around £300-£400 for off the shelf | |
Robin |
posted on 20th Feb 08 at 22:26 |
We can get cams reground to a spec to suit you, if there's enough metal on the lobes to do it. | |
Warren G |
posted on 20th Feb 08 at 22:24 |
just think il stick with the 260 degree cams, | |
Robin |
posted on 20th Feb 08 at 22:17 |
The issue is the lift, not the duration. | |
Warren G |
posted on 20th Feb 08 at 22:11 |
quote: thanks for that, i thought the max you could run on standard pistons was 268 degree cams? i dont think you will beat kents price on a reprofile, going for 260 degree, £120 cash ;) | |
Robin |
posted on 20th Feb 08 at 22:01 |
X18XE1 specs are as follows | |
Warren G |
posted on 20th Feb 08 at 21:49 |
the z18xe/x18xe1 engines | |
Robin |
posted on 20th Feb 08 at 21:46 |
Are you after the duration and lift of standard cams? | |
Warren G |
posted on 20th Feb 08 at 21:42 |
what do standard 1800 cams run? anyone know |