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 8215 Posts Member #: 90 Post Whore Somewhere around Swindon |
15th Feb, 2006 at 05:30:45pm
why are the turbo and non turbo mains different? eg side or centre locating tab ect Crystal Sound Audio said:
Why wolfie...you should have your name as Fuckfaceshithead ! "A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams |
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Site Admin  15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
15th Feb, 2006 at 06:15:35pm
The turbo "type" mains do not have the oil groove in the lower shell. This gives a bigger bearing area, and can support more load.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
15th Feb, 2006 at 09:37:31pm
And to be even more technical, none of the big names when it comes to A-series engine building likes the new type.
Edited by Vegard on 16th Feb, 2006. On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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 6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
15th Feb, 2006 at 10:11:44pm
any late ish A plus block will have solid shells in thre caps on the mains,and the centre groove for the tang,even if you have an early block [even A series] still use the later shells and file thr groove in the right place,
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
16th Feb, 2006 at 03:31:56am
On 15/02/2006 21:37:31 Vegard said:
The mains should be crossdrilled for this which they are NOT. I don't neccesarilly agree with that to be honest... just look at the evidence - If it was a problem, we'd be spinning mains left right and centre. I can't EVER remember anyone doing that for as long as this site has been going... And putting my engineer hat one, something with a hole in it is generally weaker than something without a hole in it. I can't see that i'll ever cross-drill a crank until the time that i start turning past 7500 rpm - which will be never as long as i'm sticking to a turbo... Edited by turbodave16v on 16th Feb, 2006. On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
16th Feb, 2006 at 08:04:04am
I agree with you Dave, that's why I wrote "should". I find it interesting that we don't have more spun mains. All other manufacturers using these kind of bearings have cross drilled mains. (Germany)
On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
16th Feb, 2006 at 01:51:38pm
ah! Gotcha with the 'should' bit..... On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
16th Feb, 2006 at 01:56:31pm
On 16/02/2006 13:51:38 TurboDave said:
ah! Gotcha with the 'should' bit.....  Yes, the should bit in that post was really easy to miss..NOT! On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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60 Posts Member #: 629 Advanced Member Colchester |
9th Mar, 2006 at 06:29:10pm
I found this article on turbo mains/through drilled main journals. Worth a read
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7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
10th Mar, 2006 at 03:00:50pm
No, that article is NOT worth a read as it is W R O N G !!!!!!
On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
10th Mar, 2006 at 05:56:18pm
i'm still trying to work out why you'd need crossdrilled mains,
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 9326 Posts Member #: 59 First mini turbo to get in the 12's & site perv Herefordshire |
10th Mar, 2006 at 06:36:35pm
to save weight? |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
10th Mar, 2006 at 08:50:56pm
in that case i'm going to put a 22mm hole in them,
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Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
10th Mar, 2006 at 09:40:16pm
On 10/03/2006 20:50:56 fastcarl said:
tom will work out how much i save,lol. Making a few assumptions, you'd save 0.489kg. I think crank life would be somewhat compromised though.  
Oh, and before anyone else calls me it, BAC.......
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
10th Mar, 2006 at 09:43:15pm
On 10/03/2006 21:03:09 mini1071s said:
On 10/03/2006 17:56:18 fastcarl said:
i'm still trying to work out why you'd need crossdrilled mains, carl You're probably joking, (if you don't need them NONE of us peasant do!), but my understanding is that it stops all the oil centrifuging out of the crank at very high rpm. Like 9000rpm lol. Maybe, not sure now! we are talking MAINS here . hello wakey wakey .lol carl |
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Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
10th Mar, 2006 at 09:46:36pm
Yep, not a huge amount of centripetal force at a 1" radius from the crank centreline......
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
10th Mar, 2006 at 09:54:59pm
On 10/03/2006 21:47:26 mini1071s said:
Well my excuse is I've just come back after a week working 19hour a day on a survey ship in the atlantic and I got so drunk last night I was too pissed to drive back from the docks tonight, had to get the GF to drive me back, I can't remember what I did last night and I'm worried cos the russian captian was looking at me funny and kept giving me black vodka. Come to think of it, my arse is sore, is it the diet of curry or...oh f@ck! I think I need a beer. old sea dog, |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
10th Mar, 2006 at 09:55:22pm
On 10/03/2006 21:47:26 mini1071s said:
Well my excuse is I've just come back after a week working 19hour a day on a survey ship in the atlantic and I got so drunk last night I was too pissed to drive back from the docks tonight, had to get the GF to drive me back, I can't remember what I did last night and I'm worried cos the russian captian was looking at me funny and kept giving me black vodka. Come to think of it, my arse is sore, is it the diet of curry or...oh f@ck! I think I need a beer. old sea dog, aha ha ha ha !!!!!!!1 |
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