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simon k
 Post subject: Re: Project 68mm
PostPosted: Fri Sep 04, 2015 1:06 pm 
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Yay For Hay!
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drmini in aust wrote:
aaron wrote:
Phil 850 wrote:
What's in all that tea :D


Sugar, Lots and lots of Sugar. :shock:


Sugar makes you fat, but he's not. Please explain....??? :shock:


sugar doesn't make you fat, fat doesn't make you fat, it's fat and sugar together that makes you fat ;)

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Phil 850
 Post subject: Re: Project 68mm
PostPosted: Sat Sep 05, 2015 1:16 am 
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TK wrote:
Meth

O
or
Amphetamine :wink:

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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sat Sep 05, 2015 3:38 pm 
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Graham, if I built a 68mm bore 998 (1108?cc) what HP loss would we get? (compared to the 1220, using RE266SS cam).
This motor was going to be a 1220 but the 1098 crank we got is cracked.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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TK
 Post subject: Re: Project 68mm
PostPosted: Sat Sep 05, 2015 7:13 pm 
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1275cc
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Vizard says the A series is more efficient in the short stroke version. Here is another question. 68mm bore 998 (1108?) Vs 1098 in same spec, which would perform better?

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kiwiinwgtn
 Post subject: Re: Project 68mm
PostPosted: Sat Sep 05, 2015 7:28 pm 
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TK wrote:
Vizard says the A series is more efficient in the short stroke version. Here is another question. 68mm bore 998 (1108?) Vs 1098 in same spec, which would perform better?


I would say the 1108 as it is closer to a 1 to 1 bore to ratio
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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sun Sep 06, 2015 7:58 am 
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I'd say there is less piston friction with the 1108 (because less conrod angularity), but I'm giving away over 100cc compared to a 1220.
"There ain't no replacement for displacement" (or is there?)
I reckon an 1108 might last longer, 998 is the only common crank I've never seen broken! :)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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timmy201
 Post subject: Re: Project 68mm
PostPosted: Sun Sep 06, 2015 8:34 am 
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I've got a spare 998 crank in the shed if you need a guinea pig...

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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sun Sep 06, 2015 9:14 am 
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I've got 2x 998 ones here. One is out of a `78 van, std/std, has no wear at all. We'll use that. 8)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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KLAS
 Post subject: Re: Project 68mm
PostPosted: Sun Sep 06, 2015 5:16 pm 
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drmini in aust wrote:
"There ain't no replacement for displacement" (or is there?)

there is, called boost ;)

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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sun Sep 06, 2015 6:59 pm 
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KLAS wrote:
drmini in aust wrote:
"There ain't no replacement for displacement" (or is there?)

there is, called boost ;)

Yeah you are right.
Also there's `cubic money'. If you start to breaks things, these 2 go together.
:lol:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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mattywood
 Post subject: Re: Project 68mm
PostPosted: Sun Oct 25, 2015 3:08 pm 
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Hey Graham, what model maniflow headers did you use?

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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sun Oct 25, 2015 5:53 pm 
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mattywood wrote:
Hey Graham, what model maniflow headers did you use?

I asked this last week, he uses the med bore Maniflow LCB.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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GR
 Post subject: Re: Project 68mm
PostPosted: Sun Oct 25, 2015 6:03 pm 
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Hi Mattywood
As Kevin said medium bore Maniflow but I used a 1,7/8 OD exhaust pipe 1,3/4 ID
Graham Russell

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mattywood
 Post subject: Re: Project 68mm
PostPosted: Sun Oct 25, 2015 6:13 pm 
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998cc
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GR wrote:
Hi Mattywood
As Kevin said medium bore Maniflow but I used a 1,7/8 OD exhaust pipe 1,3/4 ID
Graham Russell


I searched the post for maniflow but couldn't find it. Do you know the model number Graham? Is it this one? Aeg376 http://minisport.com.au/mini-lcb-stage-2-extractora-with-special-centre-pipea-maniflow

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drmini in aust
 Post subject: Re: Project 68mm
PostPosted: Sun Oct 25, 2015 6:35 pm 
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Maniflow med bore LCB, p/no C-AEG365.
Under $200 from Karcraft.

It's the original Maniflow design one, not the one with the funny centre pipe.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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