adjustable camshaft Timing? advice please

THEMISHKEN

THEMISHKEN

Hi all.... I run k11 1.0 turbo 0.5 bar boost .. >>https://www.micra.org.uk/threads/turbo-micra-from-georgia.67526/#post-752065

the problam I have is huge power loss after ~~120 km/h
I think the reason is timing(spark)... everything is assembled as it should but I think timing chain is streched also chain tensioners are worn so timing is retarded...
I think I must advance both IN & EX camshafts tu reduce chain strech.. I read somewhere that 4° advance or retard won't hurt engine so I decided to advance both camshafts 5°and machined sprockets...
Im planning to install machined sprockets so what do you think will this mod give any gain? or is there any chance to damage engine???
 

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it will only move the powerband up or down a bit, you must have some other sort of issue, is the speedo sensor to the ecu disconnected ?
 
frank said:
it will only move the powerband up or down a bit, you must have some other sort of issue, is the speedo sensor to the ecu disconnected ?
Click to expand...
Hi frank... yes speed sensor wire is disconected from ecu.... also I don't use factory o2 sensor it is disconected... I use only WIdeband o2 sensor which is not connected tu ECU maybe this is the reason?
 

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