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 Post subject: RE13 camshaft profile
PostPosted: Wed Jun 02, 2010 1:12 pm 
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848cc
848cc

Joined: Mon May 17, 2004 1:56 pm
Posts: 18
Location: Sydney
Does anyone have the inlet & exhaaust openign & closing settings for RE13 Camshaft that I have?

I know we set the TDC of the 1st Inlet @ 108.

I would like to complete the following forumla:
Inlet Opens BTDC:
Inlet CLoses ABTC:
Duration Period: 268
Exhaust Opens BBDC:
Exhaust Closes ATDC:
Exhaust Period: 279
Cam Lift:
Value Clearance: 0.015"

I am comparing a RE13 to BMC731 profile as used in my brother-in-laws car.

Thanks
Wazza

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PostPosted: Wed Jun 02, 2010 2:20 pm 
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998cc
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Joined: Sun Aug 31, 2008 9:04 pm
Posts: 932
Location: Ipswich
I have a BMC731 going into my engine at the moment. I was looking at the RE13, it is a better cam than the 731 i have been told, mainly because it is of much later design so its development is better than the 731 which is an old design.

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'66 BRG Morris Mini Deluxe 60HP ATW
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PostPosted: Wed Jun 02, 2010 4:32 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39765
Location: near Baulkham Hills, NSW
Taken from AC Dodd's site-

"Keith Calvers (not his own I know) , RE13 Based on 1 example only;

Checking height: 0.016" @ lobe

Timing: (Intake): 34.5/61.5 (Exhaust): 63.5/32.5

Nominal lobe lift: (Intake): 0.290" (Exhaust): 0.290"

Duration (Intake): 276 (Exhaust): 276

Lobe centre angle (Intake): 103.5 (Exhaust): 105.5

Lobe separation angle: 104.5

Lift on overlap: 0.085"

Accuracy: Good"


I used to run a 731 in my 1310, it wasn't bad back then but these days it's pretty tame power-wise.
RE13 is better for torque & HP all the way up, and goes further before running out of puff.
I have one in the 1412 with Toyota Corolla 1.46:1 rockers.
It made 113lb/ft torque with a single HS6 carb, on GR's engine dyno.

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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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