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Home > Help Needed / General Tech Chat > Cam shaft help 1293 supercharged

chris27989

9 Posts
Member #: 11276
Junior Member

21st Jan, 2016 at 10:01:26am

Hi Guys,

not sure what cam shaft to go with on my 1293 supercharger build. Was thing along the lines of a Swiftune SW05-7 Cam but was wondering if there is a better of the shelf or custom option.
The car is being completely restored from the ground up as its not my daily drive there is no time frame I just want an awesome mini. I brought a machined block and have uprated the pistons. The spec of the engine will be:
1293 Block
18cc 0.20"+ omega pistons
HIF44 Carb
Podifold Supercharger manifold
With the plan of
1:5 roller rocker
Straight cut gears with diff
Eaton M45
The head is going to be a Benross Racing head.

Hopefully trying to achieve around the 115 - 130 bhp ball park. If I could break the 150 mark that would be awesome.

Any help would be gracefully welcomed.

Thanks
Chris

Yo-Han

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976 Posts
Member #: 3228
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North of the Netherlands

21st Jan, 2016 at 11:16:18am

Hi Chris,
Welcome to TM.
I got a cam from Stuart Gurr, vmaxscart.
There was a choice between 2 cams; one to get through emissions and one non-emissions version.
(I got the non-emissions one; IIRC 273cam)

(I think 1:1.5 rocker will be pushing it a bit to far)

Dazed and Confused....

wil_h

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9258 Posts
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Betwix Harrogate and York

21st Jan, 2016 at 12:37:03pm

Is your installation a suck throu or blow thru?

If suck through 130bananas is about the max with an M45. 150 is only available on some rolling roads:)

As for cam, I've always thought that the Kent 276 is a good SC cam.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


Cables123

6 Posts
Member #: 11097
Junior Member

21st Jan, 2016 at 01:00:43pm

think if its a podifold its blow through?

wil_h

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9258 Posts
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Betwix Harrogate and York

21st Jan, 2016 at 01:27:28pm

Oh yeah, I'd forgotton about that.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


apbellamy

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16540 Posts
Member #: 4241
King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

Rotherham, South Yorkshire

21st Jan, 2016 at 07:09:46pm

I've got the Stewart Gurr 273 cam in my suck through super charged mini. Drives well, no emission issues, but not been on the rollers yet.

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*

gr4h4m

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Chester

21st Jan, 2016 at 08:43:46pm

I'm not sure there is much data on the blow through installations, what does podfold say has worked well in the past for your config?

Suck through sc setups seem to like a cam with a wide LCA.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!


Yo-Han

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976 Posts
Member #: 3228
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North of the Netherlands

21st Jan, 2016 at 09:29:18pm

For reference the 273 cam has a 112 LCA

Dazed and Confused....
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