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First Time Engine Rebuild. Advice Please?!


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#16 Cooperman

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Posted 22 February 2016 - 08:18 PM

To get a 276 cam to work as it is designed, it will be necessary to rev past the point at which maximum power is achieved in order to keep it 'on the cam' for the next gear up. Personally I wouldn't want to be revving a 1098 crank to around 6400 rpm a lot of times. If/when the crank snaps it takes out the entire engine & probably the gearbox. However, if a 276 is fitted and those revs are not habitually used, then it is clearly the wrong cam. When you've seen inside a blown up engine (I've seen many!) you realise the cost of fixing it all (new engine & gearbox).

Look yourself at the various cam graphs. You need maximum torque at between 3000 and 3700 rpm and maximum power at between 5200 and 5500 rpm. That is not a 276.

I hope this helps.



#17 pusb

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Posted 22 February 2016 - 08:24 PM

To get a 276 cam to work as it is designed, it will be necessary to rev past the point at which maximum power is achieved in order to keep it 'on the cam' for the next gear up. Personally I wouldn't want to be revving a 1098 crank to around 6400 rpm a lot of times. If/when the crank snaps it takes out the entire engine & probably the gearbox. However, if a 276 is fitted and those revs are not habitually used, then it is clearly the wrong cam. When you've seen inside a blown up engine (I've seen many!) you realise the cost of fixing it all (new engine & gearbox).

Look yourself at the various cam graphs. You need maximum torque at between 3000 and 3700 rpm and maximum power at between 5200 and 5500 rpm. That is not a 276.

I hope this helps.

 

Thanks Cooperman, your advice as always is very helpful!






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