kaymar
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| posted on 28/2/05 at 11:42 PM |
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681f v 711m
1.6 crossflow 681 v 711 whats the actuall difference please i have also seen for sale 1.3 with 711 block is this correct? regards martin
p/s for those who run a 1.3 xfloe would be gratefull to hear your comments on driveability etc as a fellow locoster from this site has offered me a
good one due to his upgrade
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David Jenkins
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| posted on 1/3/05 at 08:28 AM |
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Rough summary (I haven't got my book handy)...
The 711 block is more rigid, and supports the crankshaft much better. Because of these changes it can survive more tuning.
David
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200mph
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| posted on 1/3/05 at 11:32 AM |
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yeah, from memory its a thicker block with better main bearing caps (stronger) and a couple of other bits stronger. I was under the impression though
that the 711 is only really better if yuo intend boring it out, or are running big power.
cheers
Mark
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viatron
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| posted on 1/3/05 at 03:01 PM |
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Crossflow Blocks
I think this is what you need, pulled straight out of my favourites, an excellent article.
http://www.lotus-cortina.com/library/block/blocks.htm
BTW for the ultimate XFlow you want a South African Diesel block, mine is out to 1760cc with room to go a bit further yet!!!
Mac
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200mph
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| posted on 1/3/05 at 03:17 PM |
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Mac is that an 85mm bore?
cheers
Mark
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