cam question

Collapse
X
 
  • Time
  • Show
Clear All
new posts

  • zesinlijn
    replied
    Ok i see :-) yes its a euro motor.. what is the best way to check this clearance? I've read about a method where they use clay. What is the minimum clearance that you need to have to be safe?

    Is it a good idea to fit this kind of cam on a stock m20? Any gains? Or should i save me the trouble and just fit the original cam?

    Leave a comment:


  • SkiFree
    replied
    Yes, especially with a high-lift cam and what I'm assuming is a higher comp. euro "i" engine.

    And anyone doing a proper stroker would not be decking the head/block unless absolutely necessary (and in those cases a new block/head is preferable). Decking the block/head for the sole purpose of gaining compression is a short cut indicating a hack-job build ethos.

    Leave a comment:


  • zesinlijn
    replied
    Even if the block or head are not going to be decked? Just a light resurface of the head.. I'm thinking this is more a problem with stroker motors where they take more material off for upping the compression?

    Leave a comment:


  • SkiFree
    replied
    Regardless of what is said, you need to do a manual piston/valve clearance check as a part of your reassembly. CANNOT stress this enough.

    Just had a customer in New Zealand this week who blew a brand new 8k race engine because the machine shop took more off the head than they said they did.

    Leave a comment:


  • zesinlijn
    started a topic cam question

    cam question

    hello!

    i'm currently rebuilding the cil head of my m20b25. valve seats, valve refacing, valve guids, valve seals, new valvesprings, new rockerarms. Now i'm thinking about putting in a new catcams 285/285. does anybody has experience with this cam? I've read a lot about schrick 288 and that some people love it in a stock m20b25 and other say it's a waist of money and that it's to agressive.

    what about piston to valve clearance?

    this is info about the cam: http://www.catcams.co.uk/acatalog/1300525.pdf

    tnx
Working...