Cams

[5teve L]

The engine I have is running some piper cams, on the reciept it has (hand written)
260 degree duration
380 degree lift
Full lift 110 degrees ATDC inlet
Full lift 110 degrees BTDC exhaust

How does that sound for an F7P turbo engine ?
Head is ported & has larger 32.4mm inlets machined into it.

I know nothing about cams but the 380 degree lift is throwing me as it seems alot..

Steve

[Andrew Cooke]

380 thou lift maybe?

that's 9.65mm in new money

[5teve L]

380 thou lift maybe?

that's 9.65mm in new money

Ah, I see, could well be & the guy just got it mixed up.

[Andrew Cooke]

seems likely.

The cams should be OK, but I'd check the LATDC, don't be afraid to open up the lobe centres to smooth the idle, if it idles nice they'll probably be fine with the turbo.

[r5 rich]

Steve if I am correct they have been specially built for a turbo engine when I read about them and custom made. Speaking to scoff he was saying about using a .82 rear housing on the turbo to make the most of them