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hypaTG
backyard mechanic
Joined: 15 Oct 2002
Posts: 524
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 Posted: Sun Apr 06, 2003 9:18 pm Post subject: compression |
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how's it going everyone,
how much would you shave off the head (how many thou) to put the compression up to between 9.5:1 and 10.0:1
(g161)
how much of a difference would you notice with this sort of compression increase?
cheers,
Mat |
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DrIFtA
tinkerer
Joined: 13 Mar 2003
Posts: 246
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| Posted: Sun Apr 06, 2003 11:04 pm Post subject: Re: compression |
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I'd be guessin that to get that kinda compression from shaving the head on a 1600 u may need to get your pistons fly-cut. And there may be issues of timing chain slack, as the tesioner may not go that far.
Dunno, but i'd imagine it would be a fair bit.
L8trz |
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Benjamin
backyard mechanic
Joined: 05 Oct 2001
Posts: 525
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| Posted: Mon Apr 07, 2003 4:21 pm Post subject: Re: compression |
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No problems with slack. My TX head has been taken to within a bee's dick of it's service life. I didn't have fly-cut pistons, but I did have a compression somewhere in the region of 10:1 and a heavily ground cam. Make sure you run PULP at least.
Bigger comp makes a big difference, your machinist should have a clue as to what is a decent shave. Maybe invest in electronic ignition as well to take advantage of the comp rise.
Cheers |
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