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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt


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Posted

A balance between being too rough and too fine, he says if the wheel is dressed to give a perfect finish it burns the surfaces and causes micro cracks. Says it will all smooth out perfectly when run in with some moly grease applied to lobes and lifter faces

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Posted
1 hour ago, ajg193 said:

Yep, Kennelly Cams

Have had quite a bit of work done by him. Never had one of his cams fail. Good engine assembly lube and good oil when breaking it in and you’ll be fine. 

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Posted
On 14/08/2020 at 16:34, ajg193 said:

A balance between being too rough and too fine, he says if the wheel is dressed to give a perfect finish it burns the surfaces and causes micro cracks. Says it will all smooth out perfectly when run in with some moly grease applied to lobes and lifter faces

Well I guess I respectfully disagree there. Good to know what their take on it is though...

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Posted
2 hours ago, ajg193 said:

I have a big bottle of penrite running in oil

What was wrong with Kelfords?

Everytime I've dealt with them they rub me up the wrong way. Their customer service is rubbish. 

Posted

The square edges of the belt trap air in the pulley as the belt spins around it, as the belt wears the edges off the air can escape easier and doesn't make as much noise.

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@BobbyBreeze any idea what sort of vacuum I should be getting at idle with a pretty mild cam? The fresh engine is sitting at about 65 kPa absolute at idle (10 " mercury pulled), with stock cam I was at about 35 kPa (19 " mercury pulled)

 

Posted
On 21/08/2020 at 11:23, ajg193 said:

@BobbyBreeze any idea what sort of vacuum I should be getting at idle with a pretty mild cam? The fresh engine is sitting at about 65 kPa absolute at idle (10 " mercury pulled), with stock cam I was at about 35 kPa (19 " mercury pulled)

 

I'd say around 16-17" Hg with a mild cam. Generally stock nanna engines are ~20" Hg, Hot street engines 13-14" and full race 10". Any chance you have an intake leak anywhere? 

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